[Federal Register Volume 79, Number 241 (Tuesday, December 16, 2014)]
[Proposed Rules]
[Pages 74894-74952]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2014-28789]



[[Page 74893]]

Vol. 79

Tuesday,

No. 241

December 16, 2014

Part III





Department of Energy





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10 CFR Parts 429 and 430





Energy Conservation Program: Test Procedures for Miscellaneous Consumer 
Refrigeration Products; Proposed Rule

Federal Register / Vol. 79 , No. 241 / Tuesday, December 16, 2014 / 
Proposed Rules

[[Page 74894]]


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DEPARTMENT OF ENERGY

10 CFR Parts 429 and 430

[Docket No. EERE-2013-BT-TP-0029]
RIN 1904-AD44


Energy Conservation Program: Test Procedures for Miscellaneous 
Consumer Refrigeration Products

AGENCY: Office of Energy Efficiency and Renewable Energy, Department of 
Energy.

ACTION: Notice of proposed rulemaking.

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SUMMARY: The U.S. Department of Energy (DOE) is proposing new test 
procedures that would measure the energy efficiency of wine chillers 
and other related miscellaneous refrigeration products that maintain 
warmer compartment temperatures than refrigerators. These procedures 
would apply both to those products that use a vapor-compression 
refrigeration system and those that do not. DOE is also proposing new 
definitions and test procedures for cooled cabinets, refrigerators that 
do not use a vapor-compression refrigeration system, hybrid 
refrigeration products, which incorporate warm compartments such as 
wine storage compartments in products that otherwise provide the 
functions of refrigerators, refrigerator-freezers, or freezers, and ice 
makers. The proposal also seeks to clarify the definitions for 
refrigerators, refrigerator-freezers, and freezers.

DATES: DOE will hold a public meeting on Thursday, January 8, 2015 from 
10 a.m. to 5 p.m., in Washington, DC. The meeting will also be 
broadcast as a webinar. See section V, ``Public Participation,'' for 
webinar registration information, participant instructions, and 
information about the capabilities available to webinar participants.
    DOE will accept comments, data, and information regarding this 
notice of proposed rulemaking (NOPR) before and after the public 
meeting, but no later than March 2, 2015. See section V, ``Public 
Participation,'' for details.

ADDRESSES: The public meeting will be held at the U.S. Department of 
Energy, Forrestal Building, Room 8E-089, 1000 Independence Avenue SW., 
Washington, DC 20585. To attend, please notify Ms. Brenda Edwards at 
(202) 586-2945. See Section V, ``Public Participation,'' for details.
    Any comments submitted must identify the NOPR for Test Procedures 
for Miscellaneous Consumer Refrigeration Products, and provide docket 
number EE-2013-BT-TP-0029 and/or regulatory information number (RIN) 
number 1904-AD44. Comments may be submitted using any of the following 
methods:
    1. Federal eRulemaking Portal: www.regulations.gov. Follow the 
instructions for submitting comments.
    2. Email: <a href="/cdn-cgi/l/email-protection#3875514b5b6a5d4b6a5d5e4a515f684a575c0a08090b6c6808080a01785d5d165c575d165f574e"><span class="__cf_email__" data-cfemail="f0bd998393a29583a29596829997a0829f94c2c0c1c3a4a0c0c0c2c9b09595de949f95de979f86">[email protected]</span></a>. Include the 
docket number and/or RIN in the subject line of the message.
    3. Mail: Ms. Brenda Edwards, U.S. Department of Energy, Building 
Technologies Program, Mailstop EE-5B, 1000 Independence Avenue SW., 
Washington, DC 20585-0121. If possible, please submit all items on a 
CD. It is not necessary to include printed copies.
    4. Hand Delivery/Courier: Ms. Brenda Edwards, U.S. Department of 
Energy, Building Technologies Program, 950 L'Enfant Plaza SW., Suite 
600, Washington, DC 20024. Telephone: (202) 586-2945. If possible, 
please submit all items on a CD. It is not necessary to include printed 
copies.
    For detailed instructions on submitting comments and additional 
information on the rulemaking process, see section V, ``Public 
Participation.''
    Docket: The docket, which includes Federal Register notices, public 
meeting attendee lists and transcripts, comments, and other supporting 
documents/materials, is available for review at regulations.gov. All 
documents in the docket are listed in the regulations.gov index. 
However, some documents listed in the index, such as those containing 
information that is exempt from public disclosure, may not be publicly 
available.
    A link to the docket Web page can be found at: http://www1.eere.energy.gov/buildings/appliance_standards/rulemaking.aspx?ruleid=105. This Web page will contain a link to the 
docket for this notice on the regulations.gov site. The regulations.gov 
Web page will contain simple instructions on how to access all 
documents, including public comments, in the docket.
    For further information on how to submit a comment, review other 
public comments and the docket, or participate in the public meeting, 
contact Ms. Brenda Edwards at (202) 586-2945 or by email: 
<a href="/cdn-cgi/l/email-protection#0644746368626728436271677462754663632862696328616970"><span class="__cf_email__" data-cfemail="3674445358525718735241574452457653531852595318515940">[email protected]</span></a>.

FOR FURTHER INFORMATION CONTACT: Ms. Ashley Armstrong, U.S. Department 
of Energy, Office of Energy Efficiency and Renewable Energy, Building 
Technologies Program, EE-5B, 1000 Independence Avenue SW., Washington, 
DC 20585-0121. Telephone: (202) 586-6590. Email: 
<a href="/cdn-cgi/l/email-protection#1253617a7e776b3c53607f6166607d7c755277773c767d773c757d64"><span class="__cf_email__" data-cfemail="7c3d0f14101905523d0e110f080e13121b3c191952181319521b130a">[email protected]</span></a> or Mr. Michael Kido, U.S. Department of 
Energy, Office of the General Counsel, GC-33, 1000 Independence Avenue 
SW., Washington, DC 20585-0121. Telephone: (202) 586-8145. Email: 
<a href="/cdn-cgi/l/email-protection#561b3f353e37333a781d3f3239163e277832393378313920"><span class="__cf_email__" data-cfemail="75381c161d1410195b3e1c111a351d045b111a105b121a03">[email protected]</span></a>.

SUPPLEMENTARY INFORMATION:

Table of Contents

I. Authority and Background
    A. General Test Procedure Rulemaking Process
    B. DOE Test Procedures for the Products in This Rulemaking
II. Summary of the Notice of Proposed Rulemaking
III. Discussion
    A. Products Covered by the Proposed Rule
    1. Refrigerators, Refrigerator-Freezers, and Freezers
    2. Cooled Cabinets
    3. Non-Compressor Cooled Cabinets/Refrigerators
    4. Hybrid Refrigerators/Refrigerator-Freezers/Freezers
    5. Ice Makers
    6. General Terms for the Groups of Products Addressed in This 
Notice
    7. Test Procedure Sections and Appendices Addressing the New 
Products
    B. Elimination of Definition Numbering in the Appendices
    C. Removal of Provisions for Externally-Vented Products
    D. Sampling Plans, Certification Reporting, and Measurement/
Verification of Volume
    E. Compartment and Product Classification
    F. Cellar Compartments
    1. Cellar Compartment Definition
    2. Cellar Compartment Standardized Temperature
    3. Cellar Compartment Temperature Measurement
    4. Cellar Compartments as Special Compartments
    5. Temperature Settings and Energy Use Calculations
    6. Volume Calculations
    7. Convertible Compartments
    G. Test Procedures for Cooled Cabinets
    1. Ambient Temperature and Usage Factor
    2. Light Bulb Energy
    H. Non-Compressor Refrigeration Products
    1. Ambient Temperature for Non-Compressor Refrigerators
    2. Refrigeration System Cycles
    I. Extrapolation for Refrigeration Products Other Than Non-
Compressor Refrigerators
    J. Hybrid Refrigeration Product Test Procedure Amendments
    1. Ambient Temperature and Usage Factor
    2. Standardized Temperature, Temperature Control Settings, and 
Energy Use Calculations for Hybrid Refrigeration Products
    K. Ice Maker Test Procedure Amendments
    1. Establishment of New Paragraph 10 CFR 430.23(dd) and New 
Appendix BB for Ice Makers
    2. Definitions for Ice Makers
    3. Energy Use Metric for Ice Makers
    4. Daily Ice Consumption Rate
    5. Test Conditions and Set-up

[[Page 74895]]

    6. Icemaking Test
    7. Ice Storage Test
    8. Ice Hardness for Continuous-Type Ice Makers
    9. Energy Use Calculations
    L. Incidental Changes to Test Procedure Language To Improve 
Clarity
    M. Changes to Volume Measurement and Calculation Instructions
    N. Removal of Appendices A1 and B1
    O. Compliance With Other EPCA Requirements
    1. Test Burden
    2. Changes in Measured Energy Use
    3. Standby and Off Mode Energy Use
IV. Procedural Issues and Regulatory Review
    A. Review Under Executive Order 12866
    B. Review Under the Regulatory Flexibility Act
    C. Review Under the Paperwork Reduction Act of 1995
    D. Review Under the National Environmental Policy Act of 1969
    E. Review Under Executive Order 13132
    F. Review Under Executive Order 12988
    G. Review Under the Unfunded Mandates Reform Act of 1995
    H. Review Under the Treasury and General Government 
Appropriations Act, 1999
    I. Review Under Executive Order 12630
    J. Review Under Treasury and General Government Appropriations 
Act, 2001
    K. Review Under Executive Order 13211
    L. Review Under Section 32 of the Federal Energy Administration 
Act of 1974
V. Public Participation
    A. Attendance at Public Meeting
    B. Procedure for Submitting Prepared General Statements For 
Distribution
    C. Conduct of Public Meeting
    D. Submission of Comments
    E. Issues on Which DOE Seeks Comment
VI. Approval of the Office of the Secretary

I. Authority and Background

    Title III of the Energy Policy and Conservation Act of 1975 (42 
U.S.C. 6291, et seq.; ``EPCA'' or, in context, ``the Act'') sets forth 
a variety of provisions designed to improve energy efficiency. (All 
references to EPCA refer to the statute as amended through the American 
Energy Manufacturing Technical Corrections Act (AEMTCA), Public Law 
112-210 (Dec. 18, 2012).) Part B of title III, which for editorial 
reasons was re-designated as Part A upon incorporation into the U.S. 
Code (42 U.S.C. 6291-6309, as codified), establishes the ``Energy 
Conservation Program for Consumer Products Other Than Automobiles.'' 
These include conventional consumer refrigerators, refrigerator-
freezers, and freezers, which are among the subjects of today's notice. 
(42 U.S.C. 6292(a)(1)) The other products addressed by this notice, all 
of which are consumer products, are hybrid (or combination) 
refrigerators, refrigerator-freezers, and freezers (i.e., products that 
include warm compartments such as wine storage compartments in products 
that otherwise perform the functions of refrigerators, refrigerator-
freezers, or freezers), cooled cabinets (including wine chillers), 
refrigeration products that do not use vapor-compression refrigeration 
systems (i.e., products that do not include a compressor and condenser 
unit as an integral part of the cabinet assembly), and standalone ice 
makers (i.e., ice makers not contained within a refrigerator, 
refrigerator-freezer, or freezer), which this notice refers to 
generally as ``ice makers.'' DOE raised the possibility in an October 
31, 2013, coverage determination proposal of adding all of these other 
products as covered products under EPCA. 78 FR 65223 (referred to in 
this notice as the October 2013 Coverage Proposal).\1\
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    \1\ Although DOE has previously indicated its belief that wine 
chillers, and, by extension, cooled cabinets that use compressor and 
condenser systems are covered under EPCA, it nevertheless has 
recently proposed to add them as separately enumerated covered 
products. This is discussed below in Section I.A.
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    Under EPCA, the energy conservation program consists essentially of 
four parts: (1) Testing, (2) labeling, (3) Federal energy conservation 
standards, and (4) certification and enforcement procedures. The 
testing requirements consist of test procedures that manufacturers of 
covered products must use as the basis for (1) certifying to DOE that 
their products comply with the applicable energy conservation standards 
adopted under EPCA, and (2) making representations about the efficiency 
of those products. Similarly, DOE must use these test procedures to 
determine whether the products comply with any relevant standards 
promulgated under EPCA.

A. General Test Procedure Rulemaking Process

    Under 42 U.S.C. 6293, EPCA sets forth the criteria and procedures 
DOE must follow when prescribing or amending test procedures for 
covered products. Any test procedures prescribed or amended under this 
section shall be reasonably designed to produce test results that 
measure the energy efficiency, energy use or estimated annual operating 
cost of a covered product during a representative average use cycle or 
period of use and shall not be unduly burdensome to conduct. (42 U.S.C. 
6293(b)(3))
    In addition, if DOE determines that adoption or amendment of a test 
procedure is warranted, it must publish proposed test procedures and 
offer the public an opportunity to present oral and written comments on 
them. (42 U.S.C. 6293(b)(2)) Finally, when amending a test procedure, 
DOE would determine to what extent, if any, the proposed test procedure 
would alter the measured energy efficiency of any covered product as 
determined under the existing test procedure. (42 U.S.C. 6293(e)(1))
    EPCA further requires that any new or amended DOE test procedure 
for a covered product integrate measures of standby mode and off mode 
energy consumption into the overall energy efficiency, energy 
consumption, or other energy descriptor, unless the current test 
procedure already incorporates the standby mode and off mode energy 
consumption or such integration is technically infeasible. If an 
integrated test procedure is technically infeasible, DOE must prescribe 
a separate standby mode and off mode energy use test procedure for the 
covered product, if a separate test is technically feasible. (42 U.S.C. 
6295(gg)(2)(A)) The current DOE test procedures for refrigerators, 
refrigerator-freezers, and freezers measure the energy use of these 
products during extended time periods that include periods when the 
compressor and other key components are cycled off. All of the energy 
these products use during the ``off cycles'' is already included in the 
measurements. The amended and new test procedures proposed in this 
notice would address standby and off mode energy use in a similar 
fashion. To address this EPCA requirement for ice makers, the notice 
proposes to integrate into the energy use measurement the energy 
consumed in an ice storage test in which the ice maker would be 
maintaining a full bin of ice rather than producing ice to fill the 
bin.

B. DOE Test Procedures for the Products in This Rulemaking

    EPCA covers various specific consumer products identified in the 
Act, as well as any other product as to which DOE has determined that 
(1) coverage is necessary and appropriate for carrying out the purposes 
of EPCA and (2) the average annual energy use of the product is likely 
to exceed 100 kilowatt-hours per-household in households that use the 
product. (See 42 U.S.C. 6292) The statute precludes the coverage of any 
product ``designed solely for use in recreational vehicles and other 
mobile equipment.'' (42 U.S.C. 6292(a))
    Refrigerators, refrigerator-freezers, and freezers are among the 
consumer products listed as covered products in EPCA. See 42 U.S.C. 
6292(a)(1). The Act, however, does not define these terms, although it 
specifies that statutory coverage applies to a product of one of these 
types if it (1) can operate

[[Page 74896]]

using alternating current electricity, (2) includes a compressor and 
condenser unit as an integral part of the cabinet assembly, and (3) is 
designed to be used with doors. Id. (These compressor/condenser-based 
products use what are commonly referred to as vapor-compression-based 
systems to provide cool air to the interior of the cabinet assembly.) 
DOE has adopted definitions for these products, which are located in 10 
CFR 430.2.
    The current DOE test procedures apply only to those refrigeration 
products that are identified as covered products in the text of EPCA at 
42 U.S.C. 6292(a)(1). The test procedures that apply to basic models of 
these products manufactured prior to September 15, 2014, are located at 
10 CFR part 430, subpart B, Appendix A1, Uniform Test Method for 
Measuring the Energy Consumption of Electric Refrigerators and Electric 
Refrigerator-Freezers, and Appendix B1, Uniform Test Method for 
Measuring the Energy Consumption of Freezers. The DOE test procedures 
for models manufactured starting on September 15, 2014, are located in 
Appendices A and B to subpart B of part 430. DOE's current regulatory 
definitions for ``electric refrigerator'' and ``electric refrigerator-
freezer,'' found at 10 CFR 430.2, exclude refrigeration products that 
are not designed to be capable of achieving storage temperatures below 
39 degrees Fahrenheit ([deg]F). This temperature threshold is not 
listed in EPCA. Although DOE has set a regulatory definition that 
includes limitations not found in EPCA, DOE is not precluded from 
expanding that regulatory definition. DOE has indicated that the term 
``refrigerator'' as used in EPCA does not exclude products that are not 
designed to be capable of achieving storage temperatures below 
39[emsp14][deg]F, and that EPCA authorizes DOE to adopt test procedures 
and standards for those products. 75 FR 59470, 59486 (Sept. 27, 2010). 
DOE's purpose in adding the 39[emsp14][deg]F criterion to its 
``electric refrigerator'' definition was to draw a distinction between 
refrigerators and wine chillers. DOE drew this distinction on the 
grounds that these wine chillers were different from standard 
refrigerators because they are not suitable for fresh food storage. 66 
FR 57845, 57846 (Nov. 19, 2001); 64 FR 37706 (July 13, 1999). DOE did 
not assert that EPCA excludes wine chillers from being considered as a 
class of refrigerator. Id.
    Similarly, in a notice of proposed determination published in 
November, 2011, (the November 2011 Proposed Determination) and in its 
recent rulemaking to promulgate standards for refrigerators, 
refrigerator-freezers, and freezers, DOE again clearly indicated that 
it interprets EPCA as authorizing it to develop standards and test 
procedures for wine chillers, and many stakeholders agreed. See 76 FR 
69147, 69149-50 (Nov. 8, 2011). See also 75 FR at 59486 (Sept. 27, 
2010). Furthermore, construing a ``refrigerator'' as including wine 
chillers and other cooled cabinets using integrated compressor/
condenser systems would be consistent with EPCA's statutory framework. 
Namely, they are designed to be used with doors, use a compressor and 
condenser unit as an integral part of the cabinet assembly, and operate 
on alternating current electricity. (42 U.S.C. 6292(a)(1))
    Despite this history, DOE has also stated that the exclusion of 
wine chillers from its definition of ``electric refrigerator'' means 
that they are ``not a covered product.'' 64 FR 37706, 66 FR 37846; see 
76 FR 57516, 57534 (Sept. 15, 2011). DOE notes that it has the 
authority to adopt test procedures and standards for consumer products 
if they are ``covered products.'' (See 42 U.S.C. 6293(b) and 6295(a)). 
In light of its past positions and its statutory authority to 
affirmatively establish coverage, DOE has decided to evaluate all of 
the varied consumer refrigeration products addressed in today's notice 
(including wine chillers) under the provisions of 42 U.S.C. 6292(a)(20) 
and (b), rather than proposing to expand the regulatory definition of 
refrigerator to include some of these products. See 78 FR 65223 (Oct. 
31, 2013). Applying this approach requires that DOE issue a 
determination regarding the appropriateness of covering and then--if 
merited--set standards for these products using the applicable 
statutory criteria. See 42 U.S.C. 6292(b) and 6295(l).
    DOE began examining whether to adopt energy conservation standards 
for the products addressed in this NOPR by issuing a framework document 
explaining the issues, analyses, and process the agency considered in 
developing standards. 77 FR 7547 (Feb. 13, 2012).\2\ Among the issues 
discussed in the framework document were test procedures for cooled 
cabinets, to which the document referred generally as ``wine 
chillers.'' (Docket No. EERE-2011-BT-STD-0043, Energy Conservation 
Standards for Wine Chillers and Miscellaneous Refrigeration Products, 
No. 3 at pp. 21-22) As part of that discussion, DOE identified what it 
believed to be the key issues in developing test procedures for these 
products and specifically requested comment as to the existence and 
nature of any other key issues on this subject. Id. DOE also solicited 
written comments on these and the other matters addressed in the 
framework document and held a public meeting on February 20, 2012, at 
which it presented and solicited discussion on these issues. 77 FR at 
7547 (Feb. 13, 2012).
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    \2\ The framework document is available at http://www.regulations.gov/#!documentDetail;D=EERE-2011-BT-STD-0043-0003.
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    This NOPR addresses products DOE categorizes as ``cooled 
cabinets,'' which include units commonly referred to as wine chillers, 
beverage centers, and beverage coolers. These cooled cabinets are not 
designed to maintain compartment temperatures below 39[emsp14][deg]F. 
Thus, they do not meet the current regulatory definition of ``electric 
refrigerator'' in 10 CFR 430.2 and are not currently subject to DOE's 
energy efficiency regulations for refrigerators. As discussed above, 
DOE believes that those cooled cabinets that contain a compressor and 
condenser unit as an integral part of the cabinet assembly could be 
included within the definition of ``refrigerator'' as that term is used 
in EPCA. Nevertheless, DOE is evaluating vapor-compression-based cooled 
cabinets as miscellaneous refrigeration products under the provisions 
of 42 U.S.C. 6292(a)(20) and (b). See 78 FR 65223 (Oct. 31, 2013). 
Other cooled cabinets use thermoelectric or absorption technology 
rather than vapor-compression technology to provide refrigeration. 
These products are not currently covered under EPCA because the Act 
specifically excludes refrigerators that do not include a compressor 
and condenser unit as an integral part of the cabinet assembly. See 42 
U.S.C. 6292(a)(1). In November 2011, DOE proposed to classify as 
``covered products'' under EPCA these and other non-compressor consumer 
refrigeration products because they meet the criteria for coverage in 
42 U.S.C. 6292(b), set forth above. 76 FR 69147 (Nov. 8, 2011) (the 
``November 2011 Coverage Proposal''). DOE reiterated this view in its 
October 2013 Coverage Proposal. 78 FR at 65224-28 (Oct. 31, 2013).
    This NOPR also addresses consumer products that combine a 
refrigerator (fresh food) compartment, a freezer compartment, or both 
fresh food and freezer compartments with a refrigerated but higher-
temperature compartment for storing wine, other beverages, or other 
non-perishable items. DOE issued guidance on the treatment of such 
products in February 2011 (``Guidance

[[Page 74897]]

on Scope of Coverage for Hybrid Refrigeration Products Issued Feb. 10, 
2011,'' No. 5, (``February 2011 Guidance'')).\3\ However, the October 
2013 Coverage Proposal and this notice propose an alternative treatment 
of such products. Some of them would meet one of the revised 
definitions proposed in this notice for ``refrigerator,'' 
``refrigerator-freezer,'' or ``freezer,'' and would therefore fall into 
the class of products identified as covered by EPCA at 42 U.S.C. 
6292(a)(1). Depending on the specific characteristics of the model, 
others would meet the proposed definition of a ``hybrid refrigeration 
product.'' These products are evaluated in today's notice as 
miscellaneous refrigeration products under the provisions of 42 U.S.C. 
6292(a)(20) and (b). See 78 FR 65223 (Oct. 31, 2013). DOE has 
determined that the former group would continue to be tested using the 
current test procedures in Appendices A and B. The latter group would 
be tested using test procedures proposed in this notice. Additionally, 
this notice proposes to clarify the distinctions between the different 
product types and how to test them.
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    \3\ This and other DOE guidance documents are available for 
viewing at http://www1.eere.energy.gov/guidance/default.aspx?pid=2&spid=1.
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II. Summary of the Notice of Proposed Rulemaking

    DOE is proposing to establish definitions and test procedures for 
several consumer refrigeration products whose energy efficiency DOE 
does not currently regulate. These products include wine chillers and 
similar products with compartment temperatures too warm to be suitable 
for food storage (collectively called ``cooled cabinets''); 
refrigeration products that are cooled with refrigeration system 
technologies such as thermoelectric and absorption-based systems that 
do not rely on compressor and condenser units; hybrid (combination) 
refrigerators, refrigerator-freezers, and freezers (i.e., those that 
include a refrigerated but higher-temperature compartment for storing 
wine, other beverages, or other non-perishable items; DOE proposes the 
term ``cellar compartment'' to describe these warmer compartments); and 
ice makers. DOE is also proposing to make clarifying amendments to the 
definitions of refrigerator, refrigerator-freezers, and freezer. For 
all definitions that include a compartment temperature specification, 
DOE proposes to clarify that the compartments must be capable of 
maintaining the required temperatures during operation at an ambient 
temperature of 72[emsp14][deg]F.
    Today's notice proposes test procedures for cooled cabinets that 
would address testing set-up, temperature control adjustment, volume 
calculation, and energy use measurement and calculation. These test 
procedures would be nearly identical to the current test procedures 
used by the State of California to measure wine chiller efficiency. The 
California procedures are based on the DOE test procedure for 
refrigerators, but apply a different compartment standardized 
temperature and usage adjustment factor (0.85 instead of the 1.0 factor 
used in the DOE refrigerator test procedure). See California Code of 
Regulations, Title 20, Sections 1601 through 1608 (September 2012).\4\ 
The proposed DOE test procedure for cooled cabinets would use a 
different adjustment factor than the California test (0.55 v. 0.85), 
which DOE believes better reflects household usage. In addition, this 
notice proposes that cooled cabinets using refrigeration technology 
other than vapor-compression would be tested in 72[emsp14][deg]F 
ambient temperature conditions, rather than the 90[emsp14][deg]F 
ambient temperature currently required in both Appendix A and Appendix 
B, and would use a different usage factor to account for this 
difference in test ambient temperature. This proposal is based on DOE's 
tentative conclusion that testing these products in an elevated ambient 
temperature would not appropriately simulate added loads, such as the 
load associated with door openings, because many of these products 
cannot maintain standardized compartment temperatures in the 
90[emsp14][deg]F ambient temperature test conditions.
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    \4\ Available at http://www.energy.ca.gov/2012publications/CEC-400-2012-019/CEC-400-2012-019-CMF.pdf.
---------------------------------------------------------------------------

    This notice also proposes new test procedures for refrigerators 
that do not use vapor-compression refrigeration technology. These 
proposed test procedures would require the same 90[emsp14][deg]F 
ambient temperature condition that is used for testing conventional 
refrigerators. DOE proposes this approach because refrigerators, which 
are intended to store fresh food, would be expected to maintain their 
compartment temperatures when subjected to the same door-opening and 
other loads that are simulated with closed-door testing in 
90[emsp14][deg]F temperature conditions. Failing to maintain 
compartment temperatures when subjected to such loads would constitute 
a food safety risk, which DOE does not consider to be appropriate for 
refrigerators. This approach differs from that proposed for cooled 
cabinets, which would be tested with a 72[emsp14][deg]F ambient 
temperature as described in the previous paragraph.
    Today's notice proposes test procedures for ``hybrid refrigeration 
products.'' DOE proposes that this term would include products that 
have freezer and/or fresh food compartments, but for which at least 50 
percent of the refrigerated volume is comprised of cellar compartments 
that are not suitable for food storage. The proposal would establish 
procedures for setting temperature controls, calculating volume and 
adjusted volume, and measuring and calculating energy use for these 
products. Today's notice also proposes clarifying amendments to the 
test procedures for refrigerators, refrigerator-freezers, and freezers 
to address products that include cellar compartments such as wine 
storage compartments that occupy less than 50 percent of their total 
storage volume. Such products would not be included under the proposed 
definition for hybrid refrigeration products; these products would be 
classified as refrigerators, refrigerator-freezers, and freezers, and 
would be required to meet the applicable energy conservation standards 
for these product types. The proposal also includes clarifying 
amendments to the definitions for refrigerator, refrigerator-freezer, 
and freezer to better distinguish them from the new product types.
    This notice also proposes new test procedures for ice makers. The 
proposed amendments include definitions for these products and test 
procedures indicating how to measure their ice production capacity 
(i.e., harvest rate) and their annual energy use. The proposed annual 
energy use calculation would be based on a daily average ice production 
rate of 4 pounds per day. The annual energy use calculation would 
account for the energy use during active ice production as well as idle 
operation. The energy use during idle operation, called ice storage 
energy use, would account for energy use during times when the ice 
maker is maintaining a full bin of ice but not replacing ice used by a 
consumer. Including the ice storage energy use would address the 
statutory requirement to integrate measures of standby mode and off 
mode energy consumption into the overall energy consumption descriptor. 
(42 U.S.C. 6295(gg)(2)(A))
    DOE's proposal for ice maker test procedures considers different 
ice maker design configurations. Specifically, the proposal provides a

[[Page 74898]]

different approach for measuring the energy use associated with ice 
storage for products that maintain ice storage temperature below 
freezing temperature than for products without cooled ice storage. 
Further, it provides different test procedures for batch-type and 
continuous-type ice makers.
    All of the amended and new test procedures for these products would 
be added to the Code of Federal Regulations (CFR) at 10 CFR 430.23, and 
also at 10 CFR part 430, subpart B, appendices A (amendments for 
uniform test method for non-hybrid refrigerators and refrigerator-
freezers with cellar compartments,\5\ as well as all products newly 
covered by this proposal except ice makers), B (amendments to uniform 
test method for non-hybrid freezers with cellar compartments); and BB 
(new appendix with uniform test method for ice makers).
---------------------------------------------------------------------------

    \5\ The notice proposes the term ``cellar compartment'' to refer 
to compartments with a temperature range warmer than that of fresh 
food compartments, for example, compartments that may be suitable 
for storage of wine.
---------------------------------------------------------------------------

    As explained above, this notice covers two groups of refrigeration 
products. The first group contains products included in 42 U.S.C. 
6292(a)(1)--refrigerators, refrigerators-freezers, and freezers. 
Amended test procedures for refrigerators and refrigerator-freezers 
would be addressed in 10 CFR 430.23(a), and amended test procedures for 
freezers would be addressed in 10 CFR 430.23(b). DOE is proposing to 
make clarifying amendments to the definitions of refrigerator, 
refrigerator-freezer, and freezer found at 10 CFR 430.2. DOE is also 
proposing amendments to the test methods for these products found at 
Appendices A and B to subpart B of 10 CFR part 430 to clarify how non-
hybrid refrigerators, refrigerator-freezers, and freezers with cellar 
compartments should be tested.
    The second group falls under 42 U.S.C. 6292(a)(20) and (b)--cooled 
cabinets, non-compressor refrigerators, hybrid refrigeration products, 
and ice makers. Test procedures for all of these products except ice 
makers would be addressed in a new section 10 CFR 430.23(cc). Test 
procedures for ice makers would be addressed in a new section 10 CFR 
430.23(dd). Definitions associated with these products would also be 
added to 10 CFR 430.2. Despite the fact that these products are treated 
separately, there are many similarities among certain of them that 
warrant applying similar test methods to those DOE currently applies to 
refrigerators and refrigerator-freezers. Therefore, DOE is proposing to 
amend 10 CFR part 430, subpart B, appendix A to address cooled 
cabinets, non-compressor refrigerators, and hybrid refrigeration 
products in addition to refrigerators and refrigerator-freezers. Test 
methods for freezers would continue to be found at 10 CFR part 430, 
subpart B, appendix B. Ice makers do not share these similarities. 
Therefore, DOE is proposing separate test methods for ice makers at 10 
CFR part 430, subpart B, appendix BB.
    When amending a test procedure, DOE typically determines the extent 
to which its proposal would alter the measured energy efficiency of any 
covered product as determined under the existing test procedure. (42 
U.S.C. 6293(e)(1)) DOE notes that most of the products addressed in 
this notice (e.g., cooled cabinets, products not using vapor-
compression refrigeration technology, and ice makers) are not currently 
covered by energy conservation standards or test procedures. Hence, 
there would be no change in measured energy efficiency by an amendment 
to a test procedure. While DOE's February 2011 Guidance previously laid 
out an approach regarding certain hybrid refrigeration products, this 
proposal, assuming a coverage determination is finalized, would alter 
that approach but not result in a change in measured energy use for 
purposes of 42 U.S.C. 6293(e).

III. Discussion

    The discussion below details the various products addressed in 
today's proposal and the specific changes to the current regulations 
that would be made to accommodate the testing of these products. These 
products include all of those consumer refrigeration products that, for 
a variety of reasons, do not lend themselves to being readily tested 
under the current test procedures laid out in DOE's regulations. The 
proposal seeks to remedy this situation by providing manufacturers with 
the framework to test these refrigeration products. Table III-1 below 
lists the affected subsections and indicates where the proposed 
amendments would appear in each appendix or section.

                   Table III-1--Discussion Subsections
------------------------------------------------------------------------
                                                  Affected Appendices or
      Section                   Title                    sections
------------------------------------------------------------------------
III.A                Products Covered by the      10 CFR 430.2 and 10
                      Proposed Rule.               CFR 430.23.
                     1. Refrigerators,
                      Refrigerator-freezers, and
                      Freezers.
                     2. Cooled Cabinets.........
                     3. Non-Compressor Cooled
                      Cabinets/Refrigerators.
                     4. Hybrid Refrigerators/
                      Refrigerator-Freezers/
                      Freezers.
                     5. Ice makers..............
                     6. General Terms for the
                      Groups of Products
                      Addressed in this Notice.
                     7. Test Procedure Sections
                      and Appendices Addressing
                      the New Products.
III.B                Elimination of Definition    Appendices A and B.
                      Numbering in the
                      Appendices.
III.C                Removal of Provisions for    Appendix A.
                      Externally Vented Products.
III.D                Sampling Plans and           10 CFR 429.61, 10 CFR
                      Certification Reporting.     429.72, 10 CFR
                                                   429.134.
III.E                Compartment and Product      10 CFR 429.14, 10 CFR
                      Classification.              429.61, 10 CFR 430.2,
                                                   Appendices A and B.
III.F                Cellar Compartments........  Appendices A and B.
                     1. Cellar Compartment
                      Definition.
                     2. Cellar Compartment
                      Standardized Temperature.
                     3. Cellar Compartment
                      Temperature Measurement.
                     4. Cellar Compartments as
                      Special Compartments.
                     5. Temperature Settings and
                      Energy Use Calculations.
                     6. Volume Calculations.....
                     7. Convertible Compartments
III.G                Test Procedures for Cooled   Appendix A.
                      Cabinets.
                     1. Ambient Temperature and
                      Usage Factor.

[[Page 74899]]

 
                     2. Light Bulb Energy.......
III.H                Non-Compressor               Appendix A.
                      Refrigeration Products.
                     1. Ambient Temperature for
                      Non-Compressor
                      Refrigerators.
                     2. Refrigeration System
                      Cycles.
III.I                Extrapolation for            Appendices A and B.
                      Refrigeration Products
                      other than Non-Compressor
                      Products.
III.J                Hybrid Refrigeration         Appendix A.
                      Product Test Procedure
                      Amendments.
                     1. Ambient Temperature and
                      Usage Factor.
                     2. Standardized
                      Temperature, Temperature
                      Control Settings, and
                      Energy Use Calculations
                      for Hybrid Refrigeration
                      Products.
III.K                Ice maker Test Procedure     10 CFR 430.2 and
                      Amendments.                  Appendix BB.
                     1. Establishment of New
                      Section 10 CFR 430.23(dd)
                      and New Appendix BB for
                      Ice makers.
                     2. Definitions for Ice
                      makers.
                     3. Energy Use Metric for     10 CFR 430.23(dd) and
                      Ice makers.                  Appendix BB.
                     4. Daily Ice Consumption     Appendix BB.
                      Rate.
                     5. Test Conditions and Set-
                      up.
                     6. Icemaking Test..........
                     7. Ice Storage Test........
                     8. Ice Hardness for
                      Continuous-Type Ice Makers.
                     9. Energy Use Calculations.
III.L                Incidental Changes to Test   Appendices A and B.
                      Procedure Language to
                      Improve Clarity.
III.M                Incidental Changes to        Appendices A and B.
                      Volume Calculation
                      Instructions.
III.N                Removal of Appendices A1     Appendices A1 and B1.
                      and B1 from the CFR.
III.O                Compliance With Other EPCA   No test procedure
                      Requirements.                amendments are
                                                   proposed in these
                                                   sections.
                     1. Test Burden.............
                     2. Changes in Measured
                      Energy Use.
                     3. Standby and Off Mode
                      Energy Use.
------------------------------------------------------------------------

A. Products Covered by the Proposed Rule

    Today's notice proposes new test procedures for several consumer 
refrigeration products DOE does not currently regulate. They include 
(a) cooled cabinets (e.g., wine chillers) that do not meet the 
definition for ``refrigerator'' because their compartment temperatures 
are warmer than the 39 [deg]F threshold established for refrigerators 
(see 10 CFR 430.2), (b) refrigeration products regardless of 
compartment temperature that do not use vapor-compression refrigeration 
technology (i.e., no compressor and condenser unit used as an integral 
part of the cabinet assembly), (c) hybrid products, for which cellar 
compartments (e.g., wine storage compartments) comprise at least half 
of the total refrigerated volume within a product that would otherwise 
meet the definitions for ``refrigerator,'' ``refrigerator-freezer,'' or 
``freezer,'' and (d) ice makers. Collectively, these products (i.e., 
products not currently covered by EPCA as a refrigerator, refrigerator-
freezer, or freezer) are referred to by DOE as miscellaneous 
refrigeration products, and DOE has proposed a definition to 
distinguish them from the other consumer refrigeration products that 
DOE's regulations currently cover. The following sections discuss the 
products affected by this proposed rule and the manner in which DOE 
proposes to address them for the purposes of regulatory coverage, 
including (1) distinguishing between those items covered as consumer 
products from those covered as industrial equipment under EPCA and (2) 
the status of products currently covered as refrigerators, 
refrigerator-freezers, and freezers.
1. Refrigerators, Refrigerator-Freezers, and Freezers
    Today's notice proposes amendments to the definitions for 
refrigerators, refrigerator-freezers, and freezers. These amendments 
would not change the meaning of the definitions, but in light of the 
proposed addition of numerous related refrigeration product types, 
these proposed changes would provide a consistent definition structure 
and improve clarity. These proposed amendments are described below.
    DOE is proposing to clarify the compartment temperature ranges used 
for these products. The current definitions for ``electric 
refrigerator'' and ``electric refrigerator-freezer'' in 10 CFR 430.2 
include cabinets that are ``designed to be capable of achieving storage 
temperatures above 32[emsp14][deg]F (0 [deg]C) and below 
39[emsp14][deg]F (3.9 [deg]C).'' DOE last modified these definitions in 
the December 2010 final rule. 75 FR at 78815-17 (Dec. 16, 2010). Prior 
to the 2010 rule, the definition for electric refrigerator included 
cabinets that are ``designed for the refrigerated storage of food at 
temperatures above 32[emsp14][deg]F and below 39[emsp14][deg]F.'' (66 
FR 57845, at 57848 (Nov. 19, 2001). In 2010, DOE proposed to add the 
new language to the definition of electric refrigerator-freezer in 
order to clarify that that combination wine storage-freezer units 
without fresh food compartments are not refrigerator-freezers. 75 FR 
29824, at 29829 (May 27, 2010) Responding to stakeholder concerns that 
most refrigerator-freezers can maintain fresh food temperatures above 
39[emsp14][deg]F (and the fact that most refrigerators can do the 
same), DOE modified both definitions to clarify that the ability to 
maintain temperatures above 39[emsp14][deg]F does not preclude a 
product from being classified as a refrigerator or refrigerator-
freezer. DOE also noted that this change was intended to clarify that a 
poorly constructed product that happens to be incapable of actually 
achieving 39[emsp14][deg]F is not excluded from coverage. 75 FR at 
78817.
    DOE has observed that the current definition has created ambiguity. 
Specifically, as DOE noted in its 2010 rule, the phrase ``designed to 
be capable of achieving'' leaves room for products to be classified as 
refrigerators even though they cannot actually maintain temperatures 
that are safe for storing fresh food--provided they are ``designed to 
be capable'' of doing so. DOE's

[[Page 74900]]

concern in 2010 was to ensure that these products are not excluded from 
being ``covered products.''
    To address these difficulties, DOE proposes to replace the phrase, 
``designed to be capable of achieving [the specified temperature],'' 
with ``capable of maintaining compartment temperatures at [the 
specified temperature].'' With this modification, product 
classification could be definitively determined through testing and 
would rely on the product's actual capability to serve its intended 
purpose rather than relying on the design intent of the manufacturer. 
DOE believes that a clear delineation based upon actual product 
performance would ensure accurate product classification by 
manufacturers and enable more effective enforcement of the energy 
conservation standards. In addition to refrigerators, refrigerator-
freezers, and freezers, DOE would apply this approach to the 
definitions for all refrigeration products whose performance is based 
on maintaining internal compartment temperatures.
    As discussed in Section III.A.3, DOE understands that certain 
products marketed as refrigerators cannot maintain temperatures below 
39[emsp14][deg]F at ambient temperatures of 90[emsp14][deg]F. The 
current definitions do not specify the ambient temperature at which a 
product must be capable of maintaining the specified temperature ranges 
within the cabinet. To clarify this issue, DOE proposes that the 
product must be capable of maintaining compartment temperatures as 
specified during operation at a typical room ambient condition of 
72[emsp14][deg]F. These proposed changes would appear in the product 
definitions in 10 CFR 430.2 and would reference product classification 
sections in the certification requirements in 10 CFR 429.14 and 429.61. 
DOE proposes this approach for all refrigeration products whose 
performance is based on maintaining internal compartment temperatures. 
DOE requests comments on these additional proposed modifications.
    DOE's current definitions in 10 CFR 430.2 for refrigerator, 
refrigerator-freezer, and freezer require that the product be 
``designed for the refrigerated storage of food.'' The use of the word 
``designed'' and the fact that ``food'' is not defined has led to 
questions from manufacturers similar to those encountered with the 
temperature range language. As mentioned above, DOE believes a clear 
delineation based on product performance would ensure accurate product 
classification and enable more effective enforcement of the energy 
conservation standards. Furthermore, DOE sees no reason to exclude 
products that are not marketed or configured for food storage, provided 
that they are capable of maintaining the specified temperatures. 
Therefore, DOE proposes removing references to storage of food.
    Section III.A.4 discusses DOE's proposal to define hybrid products 
as those for which warm compartments not capable of maintaining 
compartment temperatures below 39[emsp14][deg]F comprise at least half 
of the refrigerated volume. Section III.F discusses DOE's proposal to 
call such warm compartments ``cellar compartments''. Although the 
definitions for refrigerators, refrigerator-freezers, and freezers 
found in 10 CFR 430.2 do not preclude the possibility that such warm 
compartments could be included as part of these products, they do not 
clarify whether such compartments could be included. DOE is proposing 
edits to these definitions to ensure a clear distinction between these 
products and the hybrid refrigeration products to be addressed in this 
proposed rule. Specifically, DOE proposes to clarify the definitions 
for refrigerator, refrigerator-freezer, and freezer by specifying that 
the product may include cellar compartments--so long as they comprise 
less than half of the product's refrigerated volume. DOE notes that 
specific test procedures associated with the cellar compartments in 
these products are discussed in sections III.F.3 and III.F.4.
    DOE also proposes to amend the definitions in 10 CFR 430.2 for 
refrigerator, refrigerator-freezer, and freezer to provide a clear 
mechanism for determining whether a given basic model is a consumer 
refrigeration product or commercial refrigeration equipment. The 
current definitions do not make this distinction explicit, which has 
also created ambiguity. DOE's proposal is intended to reduce or 
eliminate situations in which DOE, manufacturers, and consumers must 
rely primarily upon inference or assumptions in order to make such 
determinations.
    DOE's proposed definitions categorically exclude three types of 
products that would otherwise meet the definitions of refrigerator, 
refrigerator-freezer, and freezer. These three criteria, which are 
characteristics of commercial refrigeration equipment, are derived from 
a combination of sources, including statutory provisions, DOE analysis 
of the market for refrigeration products, and comments received from 
manufacturers. Specifically, DOE proposes to exclude from the 
definition any products: (1) With one or more permanently open 
compartments; (2) that do not include a compressor and condenser unit 
as an integral part of the cabinet assembly; or (3) that are certified 
under ANSI/NSF 7-2009 International Standard for Food Equipment--
Commercial Refrigerators and Freezers, or ANSI/UL 471-2006 UL Standard 
for Commercial Refrigerators and Freezers.
    Under this proposal, the criteria proposed in today's notice would 
be the primary means for determining which refrigeration products are 
covered consumer products. All refrigeration products that are excluded 
from coverage as consumer products by the three criteria in the 
definitions, but which meet the definition of a commercial 
refrigerator, refrigerator-freezer, or freezer under EPCA, would be 
considered covered as commercial refrigeration equipment and could be 
subject to the energy conservation standards in section 431.66 of 10 
CFR part 431.
    DOE proposes to revise the order of the requirements in the 
definitions of refrigerator, refrigerator-freezer, and freezer to 
create a parallel structure. Amending the definitions to follow the 
same structure would enhance readability and simplify product 
classification.
    DOE is also proposing to remove the word ``electric'' from the 
definitions of ``electric refrigerator'' and ``electric refrigerator-
freezer.'' The current definition for ``refrigerator'' in 10 CFR 430.2 
indicates only that the product is an ``electric refrigerator.'' The 
actual characteristics of the product are detailed in the definition 
for ``electric refrigerator.'' Similarly, the definition for 
``refrigerator-freezer'' in 10 CFR 430.2 references the definition for 
``electric refrigerator-freezer.'' An early version of 10 CFR 430.2 
defined ``refrigerator'' as ``an electric refrigerator or a gas 
refrigerator.'' See 42 FR 46140, 46143 (Sept. 14, 1977). This reference 
to ``gas refrigerator'' has since been deleted; therefore, DOE 
tentatively concludes there is little reason to retain definitions for 
both ``refrigerator'' and ``electric refrigerator.'' Hence, DOE 
proposes to eliminate the definitions for ``electric refrigerator'' and 
``electric refrigerator-freezer,'' and to move the detailed 
descriptions to the definitions for ``refrigerator'' and 
``refrigerator-freezer.'' DOE also notes that Appendix B uses the term 
``electric freezer'', which is not currently defined, in sections 2.3 
and 6.2.2. DOE proposes to change this term to ``freezer'' in these 
sections of the appendix. These changes would enhance clarity by 
eliminating duplicate terms. DOE requests comment on this proposal.

[[Page 74901]]

    The definition for ``all-refrigerator'' currently appears in 
Appendices A and A1. Whether a product satisfies this definition can 
determine its product class as well as how to test it. For this reason, 
DOE proposes to move the definition for all-refrigerator from Appendix 
A to 10 CFR 430.2. Because Appendix A1 has not been valid for testing 
since September 15, 2014, and because DOE is proposing to remove 
Appendix A1 from the CFR as discussed in section III.N, DOE is not 
proposing to make an accompanying change in that appendix.
    DOE notes that the current definition in 10 CFR 430.2 for electric 
refrigerator-freezer indicates that at least one compartment has 
attributes consistent with a fresh food compartment and that at least 
one compartment has attributes consistent with a freezer compartment. 
DOE proposes to clarify that the same compartment could not satisfy 
both of these requirements in a refrigerator-freezer--i.e., at least 
one of the compartments is capable of maintaining compartment 
temperatures between 32[emsp14][deg]F and 39[emsp14][deg]F and at least 
one of the remaining compartments is capable of maintaining compartment 
temperatures below 8[emsp14][deg]F.
    Finally, DOE is proposing to add language to the freezer definition 
in 10 CFR 430.2 to clarify the distinction between freezers and ice 
makers, discussed below in Section III.A.5. Specifically, DOE is 
proposing to exclude from the freezer definition ``any refrigerated 
cabinet that consists solely of an automatic icemaker and an ice 
storage bin arranged so that operation of the automatic icemaker fills 
the bin to its capacity.'' Tests conducted by DOE indicate that some 
ice makers have refrigerated space that the product can cool to 
temperatures of 0[emsp14][deg]F or below. (Cooled-Storage Ice Maker 
Test Summary, No. 3) Because many freezers contain automatic icemakers, 
DOE considered the potential difficulty of distinguishing ice makers 
from freezers. Typically, the ice storage bin of an ice maker becomes 
filled with ice during operation. In most cases, this would preclude 
use of the product to store items other than ice. However, one could 
consider a product very similar to an ice maker that has, in addition 
to the automatic icemaker and the ice storage bin, a compartment 
maintained at temperatures of 0[emsp14][deg]F or below. Such a product 
would have space for storage of items other than ice and be considered 
a freezer. Consequently, the key distinctions between ice makers and 
freezers would include (a) many ice makers do not maintain internal 
temperatures at or below 0[emsp14][deg]F, and (b) ice makers do not 
have space for storage of items other than ice.
    DOE requests comment on all of these proposed changes to the 
definitions for refrigerator, refrigerator-freezer, and freezer.
2. Cooled Cabinets
    DOE proposes adopting in 10 CFR 430.2 the term ``cooled cabinet'' 
to denote consumer refrigeration products such as wine chillers that do 
not meet the definition for ``refrigerator'' because their compartment 
temperatures are warmer than the 39[emsp14][deg]F threshold established 
for refrigerators.
    EPCA does not specify the temperature conditions that a product 
must meet to be considered a refrigerator. (42 U.S.C. 6292(a)(1)) DOE 
initially defined refrigerators using the term ``electric 
refrigerator'' to include products ``designed for the refrigerated 
storage of food at temperatures above 32[emsp14][deg]F.'' 42 FR 46140, 
46143 (Sept. 14, 1977). However, DOE modified this definition to 
exclude wine chillers by adding an upper limit of 39[emsp14][deg]F to 
the temperature range cited in the refrigerator definition. 66 FR 
57845, 57848 (Nov. 19, 2001) (explaining DOE's reasoning for altering 
the final definition it adopted for the term ``electric 
refrigerator'').
    DOE further amended the definition for ``refrigerator'' as part of 
a final rule published on December 16, 2010. See 75 FR 78810, 78817. 
This revision clarified that a product is not necessarily disqualified 
from coverage as a refrigerator if its compartments can maintain 
average temperatures above 39[emsp14][deg]F for some temperature 
control settings. Id. This modification to the refrigerator definition 
did not affect the coverage of products that are not designed to store 
fresh food at temperatures under 39[emsp14][deg]F. DOE explained that 
it would consider initiating a future rulemaking to establish coverage 
and energy standards for wine chillers and related products. Id.
    On February 13, 2012, DOE announced the availability of a framework 
document that discussed the process it would follow when considering 
potential energy conservation standards for wine chillers and other 
related products. 77 FR 7547. In that document, the agency noted that 
it was considering how to refer to products such as wine chillers that 
would not, through the use of ``wine'' in the name, suggest a 
limitation to products designed for wine storage. (Docket No. EERE-
2011-BT-STD-0043, Energy Conservation Standards for Wine Chillers and 
Miscellaneous Refrigeration Products, No. 3 at p. 13) DOE received no 
comment on this issue and is proposing to use the term ``cooled 
cabinet'' to denote all products such as wine chillers that do not meet 
the definition for refrigerator because they are not capable of 
maintaining compartment temperatures below 39[emsp14][deg]F (3.9 
[deg]C). DOE is proposing to state this explicitly in the definition so 
that the conditions under which the category of coverage is established 
will be clearly understood.
    DOE is aware that the Australian/New Zealand Standard 4474.1-2007 
\6\ (AS/NZS 4474.1-2007) defines a ``cooled appliance'' as a 
refrigerating appliance that cannot be classified as a refrigerator, 
refrigerator/freezer, or freezer. AS/NZS 4474.1-2007 further defines a 
``refrigerating appliance'' as a self-contained, factory-produced, 
insulated cabinet of a design and volume which is suitable for general 
household use, cooled by energy consuming means and intended for the 
preservation of foodstuffs, frozen or unfrozen. DOE believes that the 
term ``cooled cabinet'' is more precise than ``cooled appliance,'' 
since the word ``cabinet'' clarifies that the product is, or includes, 
a cabinet for storage purposes. Accordingly, DOE is proposing to define 
such a product as a cabinet having a source of refrigeration requiring 
electric energy input only and capable of maintaining compartment 
temperatures not below 39[emsp14][deg]F (3.9 [deg]C).
---------------------------------------------------------------------------

    \6\ ``Australian/New Zealand Standard, Performance of Household 
Electrical Appliances--Refrigerating Appliances, Part 1: Energy 
Consumption and Performance,'' AS/NZS 4474. 1:2007, available for 
purchase at http://infostore.saiglobal.com/store/results2.aspx?searchType=simple&publisher=all&keyword=AS/NZS%204474.
---------------------------------------------------------------------------

    DOE is also aware that some products marketed for the storage of 
wine or beverages in a temperature range suitable for storage of such 
products, i.e., in a range from 50[emsp14][deg]F to 60[emsp14][deg]F, 
may have the capability to maintain compartment temperatures close to 
39[emsp14][deg]F and in some cases cross over this threshold by one or 
two degrees. Rather than require such products to be regulated as 
refrigerators, and/or their compartments be tested as fresh food 
compartments, DOE is proposing to allow a small temperature crossover 
in the definition for cooled cabinet, provided that the product's 
temperature range extends through the range considered appropriate for 
wine. Specifically, DOE proposes that the definition specify that a 
cooled cabinet is capable of maintaining compartment temperatures 
either (a) no lower than 39[emsp14][deg]F (3.9 [deg]C) or (b) in a 
range that

[[Page 74902]]

extends no lower than 37[emsp14][deg]F (2.8 [deg]C) but at least as 
high as 60[emsp14][deg]F (15.6 [deg]C). As discussed for the other 
products covered by this notice in the sections below, DOE is proposing 
also to use this description of temperature range to denote warm 
compartments, discussed as ``cellar compartments'' in section III.F.1, 
in its proposals for other products. Also, as discussed in section 
III.A.1, DOE clarifies that the term ``capable of maintaining'' when 
used in the product definitions in reference to the compartment 
temperatures used to delineate coverage (e.g., 39[emsp14][deg]F) 
applies to operation in a typical room ambient condition of 
72[emsp14][deg]F as specified in 10 CFR 429.14 and 429.61. DOE notes 
that products that are capable of maintaining compartment temperatures 
below 39[emsp14][deg]F, but not less than 37[emsp14][deg]F, and are not 
capable of maintaining compartment temperatures above 60[emsp14][deg]F 
would be considered refrigerators or refrigerator-freezers, as 
appropriate.
    DOE notes that the proposed definition would cover any product that 
is capable of maintaining a cooler internal storage temperature than 
the temperature outside the cabinet. Hence, it would apply to products 
that provide compartment temperatures warmer than the range that is 
typical for wine chillers.\7\ DOE also notes that the proposed cooled 
cabinet definition would not be limited to products with alternating 
current power input. This aspect of the definition addresses the 
possibility that these products may be cooled using thermoelectric 
refrigeration systems, which can be powered by direct current as well 
as alternating current electric power. (Docket No. EERE-2011-BT-STD-
0043, Energy Conservation Standards for Wine Chillers and Miscellaneous 
Refrigeration Products, True Manufacturing, No. 3 at pp. 21, 22)
---------------------------------------------------------------------------

    \7\ Wine chillers operate with compartment temperatures above 40 
[deg]F and generally near 55 [deg]F (see 75 FR 59469, 59486 
(September 27, 2010))
---------------------------------------------------------------------------

    DOE requests comment on the use of the term ``cooled cabinet'' to 
denote products such as wine chillers that maintain compartment 
temperatures that are warmer than 39[emsp14][deg]F or between 
37[emsp14][deg]F and at least 60[emsp14][deg]F, and on the proposed 
definition for these products.
3. Non-Compressor Cooled Cabinets/Refrigerators
    For refrigerators, refrigerator-freezers, and freezers, EPCA 
specifies that coverage applies to those products that include a 
compressor and condenser unit as an integral part of the cabinet 
assembly. (42 U.S.C. 6292(a)(1)(B)) These are products that use vapor-
compression refrigeration technology. However, DOE is aware of consumer 
refrigeration products that cool their interiors using other 
refrigeration technologies, notably those products that use 
thermoelectric and absorption refrigeration. These refrigeration 
technologies are described in the framework document noted above. 
(Docket No. EERE-2011-BT-STD-0043, Energy Conservation Standards for 
Wine Chillers and Miscellaneous Refrigeration Products, No. 3 at p. 5) 
While DOE is aware of products sold as wine chillers and refrigerators 
that use thermoelectric and/or absorption technology, it is unaware of 
any such products sold as refrigerator-freezers or freezers.
    DOE proposes to use the term ``non-compressor'' to describe 
refrigeration products that do not use vapor-compression refrigeration 
technology and to define non-compressor variants of refrigerators and 
cooled cabinets. DOE is proposing to define a non-compressor cooled 
cabinet as ``a cooled cabinet that has a source of refrigeration that 
does not include a compressor and condenser unit.'' A non-compressor 
refrigerator would be defined as ``a cabinet that has a source of 
refrigeration that does not include a compressor and condenser unit, 
requires electric energy input only, and is capable of maintaining 
compartment temperatures above 32[emsp14][deg]F (0 [deg]C) and below 
39[emsp14][deg]F (3.9 [deg]C).'' The definition would also indicate 
that such a product could have a compartment capable of maintaining 
compartment temperatures below 32[emsp14][deg]F (0 [deg]C). The 
proposed definition would also specify that these products may have one 
or more cellar compartments, as described in section III.F. DOE's 
proposed definitions would account for hybrid and non-hybrid versions 
of these products (i.e., having cellar compartments comprising at least 
half or less than half of their refrigerated volume, respectively). The 
definition for non-compressor refrigerator would clarify that these 
cellar compartments would comprise less than half of the product's 
refrigerated volume, and the definition for hybrid non-compressor 
refrigerators would denote the case in which these cellar compartments 
would comprise at least half of the product's refrigerated volume.
    DOE notes that the proposed amendments to the term ``refrigerator'' 
used without a modifier explicitly exclude those products that do not 
use vapor-compression technology. (A ``refrigerator'' would be the type 
of product already covered by the statute.) Thus, a ``non-compressor 
cooled cabinet'' would be treated as a type of ``cooled cabinet,'' but 
a ``non-compressor refrigerator'' would not be a type of 
``refrigerator.''
    DOE considered whether the non-compressor refrigerator definition 
should state explicitly that the ability to maintain a 39[emsp14][deg]F 
or lower compartment temperature applies when a product operates in a 
90[emsp14][deg]F ambient temperature condition. The current definition 
for refrigerator does not explicitly specify the ambient temperature 
associated with the 39[emsp14][deg]F requirement. As discussed in 
section III.A.1, DOE interprets the temperature range capability for 
the purposes of determining product status to apply to typical room 
temperature ambient temperature conditions, i.e., 72[emsp14][deg]F. DOE 
has observed that many products marketed as refrigerators that do not 
use vapor-compression refrigeration technology cannot maintain the 
39[emsp14][deg]F standardized temperature that is used for fresh food 
compartments when tested using the required 90[emsp14][deg]F ambient 
temperature condition. As described in section III.G.1, refrigerators 
are tested with closed doors in a 90[emsp14][deg]F ambient temperature 
condition to simulate the added thermal loads associated with door 
openings and the insertion of warm food items. DOE test results for 
five non-compressor refrigeration products in 90[emsp14][deg]F test 
conditions are summarized in Table III-2. Each of these products was 
marketed as a ``refrigerator'', but none could attain a 
39[emsp14][deg]F compartment temperature at the 90[emsp14][deg]F test 
conditions--none were even within 9[emsp14][deg]F of the target.

[[Page 74903]]



         Table III-2--Test Results for Thermoelectric and Absorption Products Marketed as Refrigerators
----------------------------------------------------------------------------------------------------------------
                                                                                         Lowest compartment
                    Product                          Refrigeration technology        temperature achieved in 90
                                                                                     [deg]F ambient temperature
----------------------------------------------------------------------------------------------------------------
Model 1.......................................  Thermoelectric...................                   57.5 [deg]F
Model 2.......................................  Thermoelectric...................                   48.2 [deg]F
Model 3.......................................  Thermoelectric...................                   48.6 [deg]F
Model 4.......................................  Thermoelectric...................                   58.2 [deg]F
Model 5.......................................  Thermoelectric...................                   61.1 [deg]F
Model 6.......................................  Absorption.......................                   52.6 [deg]F
----------------------------------------------------------------------------------------------------------------

    In DOE's view, the ability of a product to maintain temperatures 
that are safe for food storage, i.e., 39[emsp14][deg]F or lower, is a 
key attribute of refrigerators. While most vapor-compression 
refrigerators generally have no trouble meeting this target, even in 
90[emsp14][deg]F ambient temperature conditions, DOE's investigation 
shows that most products, if not all, that are marketed as 
refrigerators and do not use vapor-compression technology fail to reach 
this target in 90[emsp14][deg]F ambient temperature conditions. In 
spite of the inability of these products to reach safe food 
temperatures under these conditions, it may be inappropriate to 
classify them as cooled cabinets rather than refrigerators, because 
they are marketed as refrigerators, and DOE expects that they are used 
as such by consumers. Hence, the definition for non-compressor 
refrigerator does not indicate that the ability to maintain 
temperatures below 39[emsp14][deg]F applies to operation in a 
90[emsp14][deg]F ambient temperature condition. This approach has 
consequences for testing, which is generally conducted in a 
90[emsp14][deg]F ambient temperature condition. Specifically, the 
compartment temperature for a non-compressor refrigerator is generally 
warmer than 39[emsp14][deg]F when operating with the temperature 
control set in the coldest position. DOE's proposals for addressing 
this issue are discussed in Section III.H.1.
    DOE notes that it is not at this time defining ``non-compressor 
refrigerator-freezers'' and ``non-compressor freezers'' because it is 
not aware of the existence of such products. However, this does not 
imply that such products would not be covered under any final coverage 
determination established for miscellaneous refrigeration products, as 
proposed by the October 2013 Coverage Proposal.
    DOE requests comment on the use of the terms ``non-compressor 
cooled cabinet'' and ``non-compressor refrigerator'' to denote products 
that use refrigeration systems that do not use vapor-compression 
refrigeration technology. DOE also requests comment on the definitions 
proposed for these products, and on DOE's initial market research 
indicating that non-compressor refrigerator-freezers and non-compressor 
freezers are not available for sale.
4. Hybrid Refrigerators/Refrigerator-Freezers/Freezers
    In 2007, Liebherr sought a waiver from the refrigerator test 
procedure for its combination freezer-wine chillers. It argued that it 
would be inappropriate to test these products with the wine storage 
compartment set at the 45[emsp14][deg]F standardized temperature used 
at that time (prior to September 15, 2014) for the fresh food 
compartments of refrigerator-freezers. Liebherr petitioned to use a 
standardized temperature of 55[emsp14][deg]F for the wine storage 
compartment to represent energy use because, in its view, the higher 
temperature would more accurately reflect the energy consumption at the 
intended temperatures of the wine storage compartments. DOE granted 
Liebherr's waiver request and permitted the manufacturer to use this 
alternative test procedure with the condition that the wine storage 
volume must constitute at least 50 percent of the total volume of the 
tested product. 72 FR 20333 (April 24, 2007).
    On December 16, 2010, DOE issued a final rule that modified the 
definitions of ``electric refrigerator'' and ``electric refrigerator-
freezer.'' The final rule's preamble discussion explained that 
combination products such as combination wine storage-refrigerators 
would be treated as covered products (see 75 FR 78810, 78817). DOE 
reinforced this statement with the February 2011 Guidance, which 
clarified that a wine storage compartment added to a product that would 
otherwise be a refrigerator or a refrigerator-freezer does not change 
the product's coverage status as a refrigerator or refrigerator-
freezer. The February 2011 Guidance also indicated, however, that 
products combining freezer compartments and wine storage compartments 
are not covered. DOE indicated in its December 2010 final rule that it 
would address wine storage-refrigeration combination products in a 
separate rulemaking. 75 FR at 78817.
    In its October 2013 coverage proposal, DOE proposed that some 
products that combine fresh food compartments with warmer compartments 
such as wine storage compartments (or that combine fresh food and 
freezer compartments with warmer compartments) would be considered to 
be hybrid products that are not subject to regulation as refrigerators 
and/or refrigerator-freezers. 78 FR at 65224 (Oct. 31, 2013). However, 
DOE did not, in that notice, define the term ``hybrid'' or elaborate on 
those characteristics that would distinguish hybrid products from 
refrigerators and refrigerator-freezers. In today's notice, DOE 
proposes that hybrid refrigeration products would be required to have 
wine storage or similar types of warm compartments that comprise half 
or more, but not all, of the refrigerated volume of the product. As 
described in section III.F.1, DOE proposes to use the term ``cellar 
compartments'' for such warm compartments.
    DOE's proposal for the 50-percent minimum threshold is based on the 
expectation that a hybrid product must be designed, built, and marketed 
with an emphasis on the storage of beverages or other non-perishable 
items rather than food storage. DOE adopted this same threshold when 
granting Liebherr a waiver for a product incorporating freezer and wine 
storage compartments. 72 FR at 20334 (April 24, 2007). DOE is basing 
its proposal that the cellar compartment volume of a hybrid product be 
less than 100 percent of the refrigerated volume on the observation 
that a product comprised entirely of one or more cellar compartments 
would be a cooled cabinet rather than a hybrid product.
    DOE proposes to define a hybrid refrigerator as a product that has 
``at least half but not all of its refrigerated volume comprised of one 
or more cellar compartments.'' Otherwise the proposed definition is 
similar to the definition for a non-hybrid ``refrigerator.'' DOE is

[[Page 74904]]

proposing similar definitions for hybrid refrigerator-freezers and 
freezers. All of these definitions would appear in CFR 430.2. DOE's 
proposals also specify that these products have refrigeration systems 
that include a compressor and condenser unit and require electric 
energy input only.
    DOE recognizes that refrigerators, refrigerator-freezers, and 
freezers may also have cellar compartments whose combined refrigerated 
volume is less than half the total refrigerated volume of the product. 
Section III.A.1 discusses DOE's proposal to address such compartments 
in the definitions for these products.
    For hybrid non-compressor refrigerators, DOE proposes to define 
these items as referring to ``a non-compressor refrigerator with at 
least half of its refrigerated volume composed of one or more cellar 
compartments.''
    DOE also proposes to include a general term for hybrid 
refrigeration products, which would specify that they include hybrid 
refrigerators, hybrid refrigerator-freezers, hybrid freezers, and 
hybrid non-compressor refrigerators.
    DOE notes that the proposed definitions for hybrid products are 
based on the concept of compartments; i.e., they would be products in 
which half or more of the volume comprises one or more cellar 
compartments. While compartments are generally considered to be 
enclosed spaces within a cabinet, the DOE test procedures do not define 
``compartment.'' Section III.E.1 discusses the need for this term and 
DOE's proposal for a definition.
    DOE requests comment on the definitions for hybrid products, 
including on the proposed requirement that hybrid status would require 
that at least 50 percent of the product's refrigerated volume comprise 
one or more cellar compartments.
5. Ice Makers
    DOE proposes to define in 10 CFR 430.2 the term ``ice maker'' as 
``a consumer product other than a refrigerator, refrigerator-freezer, 
freezer, hybrid refrigeration product, non-compressor refrigerator, or 
cooled cabinet that is designed to automatically produce and harvest 
ice, but excluding any basic model that is certified under NSF/ANSI 12-
2012 Automatic Ice Making Equipment. Such a product may also include a 
means for storing ice, dispensing ice, or storing and dispensing ice.''
    DOE's proposed definition indicates that the functions of an ice 
maker may include ice storage and/or ice dispensing. This part of the 
definition is consistent with the characteristics of ice makers 
designed and sold for consumer markets, as demonstrated by product 
information for a representative sample of ice makers (Product 
Information for Representative Ice Makers, No. 9). DOE is not aware of 
any ice makers that do not incorporate an ice storage bin for ice 
storage. The proposed definition would cover such products, although 
the proposed test procedures would not necessarily address them. DOE 
would consider developing additional test procedures to address such 
products if and when they are commercialized.
    The proposed definition would distinguish ice makers from automatic 
commercial ice makers (ACIM)--ice makers would be consumer products as 
defined in 42 U.S.C. 6291(1). The definition would exclude from 
coverage any ice makers with basic models certified to NSF/ANSI 
Standard 12-2012, which is used to certify commercial ice makers. 
Therefore, any ice maker that is not certified to NSF/ANSI 12-2012 
would be classified as an ice maker rather than an ACIM even if its 
harvest rate falls within the range for which there are energy 
conservation standards for ACIMs (i.e., over 50 pounds of ice produced 
per day). (42 U.S.C. 6313(d)(1)) Likewise, any ice maker that is 
certified to NSF/ANSI 12-2012 would not be classified as an ice maker 
even if it produces 50 or less pounds of ice per day. Such a product 
may meet the definition for ACIM, even though there are currently no 
standards for ACIMs that produce less than 50 pounds of ice per day.
    This proposed definition would also distinguish ice makers from 
other types of consumer refrigeration products. As discussed above, DOE 
considered the difficulty of distinguishing ice makers from other 
refrigeration products that have automatic ice makers. In order to 
prevent the ice maker definition from also covering models that would 
otherwise meet the definition for a freezer or other refrigeration 
product, DOE is proposing to exclude from the ice maker definition any 
product that meets the definition for one of the other refrigeration 
products covered by this notice.
    DOE requests comment on its proposed definition for ice makers.
6. General Terms for the Groups of Products Addressed in This Notice
    DOE proposes to define ``miscellaneous refrigeration product'' as a 
consumer refrigeration product other than a refrigerator, refrigerator-
freezer, or freezer, which includes hybrid refrigeration products, 
cooled cabinets, non-compressor refrigerators, and ice makers. DOE also 
proposes to define ``consumer refrigeration product'' as a 
refrigerator, refrigerator-freezer, freezer, or miscellaneous 
refrigeration product. DOE requests comment on these proposed 
definitions.
7. Test Procedure Sections and Appendices Addressing the New Products
    Appendices A and B, along with 10 CFR 430.23(a)-(b), contain the 
test procedures for refrigerators, refrigerator-freezers, and freezers. 
To limit the impact of the amendments that may be required to adopt 
test procedures for all of the additional products mentioned in this 
notice, DOE proposes to modify only Appendix A to address the new 
products whose primary function is to provide refrigerated storage 
within their cabinets: cooled cabinets, non-compressor refrigerators, 
and hybrid refrigeration products. This would mean that the test 
procedure requirements for hybrid freezers would be inserted into 
Appendix A rather than Appendix B. DOE proposes to adopt this approach 
to limit the duplication of amendments that would be required in both 
appendices if hybrid freezer test procedures were inserted into 
Appendix B. While the notice proposes some amendments to Appendix B, 
these amendments would apply to freezers that have cellar compartments 
that do not comprise a sufficiently large fraction of the product's 
refrigerated volume to meet the proposed hybrid refrigeration product 
definition--that is, a product that would continue to be classified as 
a freezer. DOE also proposes to adopt a new section 10 CFR 430.23(cc) 
for cooled cabinets, non-compressor refrigeration products, and hybrid 
refrigeration products.
    Regarding ice makers, DOE is proposing to add a new section 10 CFR 
430.23(dd) and a new Appendix BB for ice makers, because the proposed 
test procedure for these products has many differences compared to the 
test procedures for the other consumer refrigeration products.

B. Elimination of Definition Numbering in the Appendices

    Appendices A, B, A1, and B1 each have an introductory section 
(``Section 1'') that defines terms that are important for describing 
the test procedures for these products. These sections are currently 
numbered such that each definition has a unique sub-section number. DOE 
believes that this approach is unnecessary because the definitions are 
all listed in alphabetical order. To improve the readability of these 
sections and to limit confusion

[[Page 74905]]

from renumbering when definitions are added or removed, DOE proposes to 
eliminate the sub-section numbering to simplify the structure of these 
sections of the appendices.

C. Removal of Provisions for Externally-Vented Products

    Externally-vented refrigerators and refrigerator-freezers can 
reduce energy use by using outside air to help cool the condenser and 
compressor when the outside air is cooler than the inside air. The 
condenser and compressor of such a product would be surrounded by a box 
connected to air ducts that would penetrate the exterior wall of a 
house, allowing cooler air to be drawn by the condenser fan into the 
box to cool down these internal components. By using cooler outdoor air 
to cool these components, an externally-vented product can, in theory, 
achieve a higher level of efficiency by increasing the efficiency of 
the product's refrigeration system and reducing the thermal impacts 
associated with the condenser and compressor heat. DOE established test 
procedures for these products in Appendix A1 on September 9, 1997. 62 
FR 47536. These provisions were retained for the more recent Appendix 
A. See 75 FR 78853, 78858-59.
    Since the inception of this procedure, more than 15 years have 
elapsed and DOE, after having researched whether any refrigeration 
product employs this technology, is unaware of any externally-vented 
refrigeration products that are either currently available or that 
manufacturers plan to offer. Because these provisions do not appear to 
apply to any known products--or those that are likely to be produced--
DOE proposes to remove the externally-vented products provisions from 
Appendix A to help simplify and improve its clarity. These changes 
would entail the removal of a number of provisions, including certain 
definitions, required testing conditions, testing measurement sections, 
and calculation methods. DOE also proposes to remove all references to 
externally vented products from the regulatory text in section 
430.23(a) of subpart B. Specifically, DOE proposes to make the 
following modifications to section 430.23(a): (1) Remove all references 
to externally vented products from sections 430.23(a)(1) through 
430.23(a)(5), (2) remove sections 430.23(a)(7) through 430.23(a)(9), 
and (3) re-number section 430.23(a)(10) as section 430.23(a)(7). DOE 
requests comment on this proposal.

D. Sampling Plans, Certification Reporting, and Measurement/
Verification of Volume

    DOE's sampling plans for both consumer and commercial refrigeration 
products all use identical statistical evaluation criteria for the 
samples. (See, for example, 10 CFR 429.14, 429.42, and 429.45.) DOE 
proposes to apply the same sampling plan criteria to all of the 
miscellaneous refrigeration products addressed in this test procedure 
notice. DOE proposes to establish a new section 10 CFR 429.61, which 
would be titled ``Miscellaneous refrigeration products,'' to address 
sampling plans and certification reporting for these products.
    The information DOE typically requires to be included in a 
certification report generally falls into three broad categories, (1) 
general information applicable to any product, (2) public product-
specific information, and (3) non-public information. DOE proposes to 
treat certain information that would be required to be submitted for 
cooled cabinets, hybrid refrigeration products, and non-compressor 
refrigerators as public--the annual energy use in kilowatt-hours per 
year, the total refrigerated volume of the product, and the total 
adjusted volume. The total adjusted volume for the product can be used 
to determine the allowed annual energy use under the standard. DOE 
would also require that certification reports for these products 
indicate whether they have variable defrost control or variable anti-
sweat heater control, and whether the locations of temperature sensors 
were modified from their standard locations during testing, as is 
currently required for refrigerators, refrigerator-freezers, and 
freezers. While this information may not apply to most cooled cabinets, 
hybrid refrigeration products, and non-compressor refrigerators, DOE 
proposes to require its inclusion in the certification reports for any 
such product for which the information does apply. DOE would also 
require manufacturers to report other non-public details regarding 
variable defrost and variable anti-sweat heater control in a manner 
similar to what is currently required for refrigerators, refrigerator-
freezers, and freezers.
    Regarding ice makers, DOE is proposing to require that 
manufacturers provide the following information which would be treated 
as public for each certified product: the annual energy use in 
kilowatt-hours per year and the harvest rate in pounds per day. In case 
the model is a continuous-type ice maker (see further description of 
ice maker types in section III.K.2), manufacturers would also need to 
report whether the standard default value of ice hardness was used in 
the calculation of energy use, and, if it was not, the measured value 
of ice hardness.
    DOE has not yet added ``miscellaneous refrigeration product'' to 
the list of covered products. Accordingly, DOE has not yet established 
product classes or product class definitions for this product type. 
Further, DOE has not yet proposed energy conservation standards for 
miscellaneous refrigeration products. DOE may modify these proposed 
requirements once these elements are finalized in order to harmonize 
the reporting elements with these other requirements. For example, if 
DOE were to propose and finalize an energy conservation standard for an 
ice maker that did not depend on that product's harvest capacity to 
verify whether its certified energy rating meets that standard, DOE 
might not require the reporting of this value.
    On April 21, 2014, DOE amended its regulations to allow use of 
computer-aided design (CAD) models when determining volume for 
refrigerators, refrigerator-freezers, and freezers, adding a new 
section 429.72(c) within 10 CFR part 429 for this purpose. 79 FR 22319, 
22336. DOE proposes to add a section 429.72(d) to establish the same 
approach for use of CAD for miscellaneous refrigeration products. DOE 
also amended its regulations to establish procedures for evaluating 
certified volume data and for determining whether to use certified or 
measured volume in calculating allowable energy use, adding a new 
section 429.134 for this purpose. Id. DOE proposes to add a section 
429.134(c) to establish the same approach for miscellaneous 
refrigeration products.
    DOE requests comment on its proposed sampling plans and 
certification report requirements for the products covered by this 
proposed test procedure. DOE also requests comments on its proposal to 
establish requirements for allowing use of CAD for volume measurements 
and for regulations associated with verifying certified volumes for 
miscellaneous refrigeration products.

E. Compartment and Product Classification

    Section III.F.1 discusses a proposal to define ``cellar 
compartment'' as a compartment with a warmer temperature range than 
fresh food compartments. Although the term ``compartment'' has been 
used

[[Page 74906]]

extensively in the DOE test procedures, it has not been defined. DOE 
considered whether further clarification of the term is required. DOE 
notes that Sanyo commented on this topic in response to the framework 
document for the energy conservation standard rulemaking for wine 
chillers and miscellaneous products. Specifically, Sanyo commented that 
the term ``compartment'' requires greater clarity, as hybrid products 
create multiple temperature zones in a variety of ways. (Energy 
Conservation Standards for Wine Chillers and Miscellaneous 
Refrigeration Products, Docket No. EERE-2011-BT-STD-0043, Sanyo, No. 12 
at p. 2) Sanyo did not, however, offer any suggestions on how to define 
that term.
    DOE is aware of only one specific definition for ``compartment'' in 
finalized test procedures. The term is found in the Australian/New 
Zealand test procedures (AS/NZS 4474.1-2007). Those procedures define a 
compartment as ``an enclosed space within a refrigerating appliance, 
which is directly accessible through one or more external doors. A 
compartment may contain one or more sub-compartments and one or more 
convenience features.'' This use of the term ``compartment'' suggests 
that there may be multiple compartments in a refrigeration product of a 
given type. This approach is consistent with its use in parts of the 
DOE test procedures, such as the definition for ``electric 
refrigerator-freezer''--defined as a cabinet which consists of two or 
more compartments (see 10 CFR 430.2). AS/NZS 4474.1-2007 further 
defines a ``sub-compartment'' as ``a permanent enclosed space within a 
compartment or sub-compartment which is designated as being a different 
type of food storage space (i.e., has a different compartment 
temperature range) from the compartment or sub-compartment within which 
it is located,'' and ``convenience features'', as enclosures or 
containers with temperature conditions which may or may not be 
different from the compartment within which they are located. The test 
standard indicates that ``compartment'' may be taken to mean 
``compartment'' or ``sub-compartment'', as appropriate for the context. 
The ``sub-compartment'' and ``convenience feature'' definitions are 
similar to the concept of a ``special compartment'' as defined in the 
DOE test procedures--these are compartments other than butter 
conditioners, without doors directly accessible from the exterior, and 
with separate temperature control. (See Appendix A, section 1).
    However, DOE notes that the AS/NZS 4474.1-2007 approach is not 
fully consistent with all of the uses of the term ``compartment'' in 
the DOE test procedures. In some cases, the term denotes all of the 
space within a refrigeration product that operates within a designated 
temperature range. For example, Appendix A, section 5.1.3 describes 
``the fresh food compartment temperature'' and section 5.1.4 describes 
``the freezer compartment temperature.'' Similarly, Appendix A, section 
5.3 refers to the fresh food compartment volume and the freezer 
compartment volume for refrigerators and refrigerator-freezers.
    After carefully evaluating the uses of the term ``compartment'', 
DOE was not convinced that any of them fully addresses the issue that 
Sanyo raised when suggesting that a definition for ``compartment'' 
should be established. Sanyo's comments responded to DOE's requests for 
comment on its framework document discussing potential energy 
conservation standards for wine chillers and miscellaneous 
refrigeration products. (Energy Conservation Standards for Wine 
Chillers and Miscellaneous Refrigeration Products, Docket No. EERE-
2011-BT-STD-0043, Sanyo, No. 12 at p. 2) Among the issues raised by DOE 
were questions related to how DOE should regulate hybrid products, how 
to determine whether a product is a hybrid product, and how to 
establish test procedures and energy conservation standards for them. 
(Energy Conservation Standards Rulemaking Framework Document for Wine 
Chillers and Miscellaneous Refrigeration Products, Docket No. EERE-
2011-BT-STD-0043, No. 3 at p. 68) Because Sanyo's comment was primarily 
concerned with clarifying the concept of ``compartment'' for the 
purpose of classifying basic models and conducting tests, DOE has 
focused on these issues in this notice, while questions regarding the 
establishment of energy conservation standards would be addressed in 
the ongoing energy conservation standard rulemaking for wine chillers 
and miscellaneous refrigeration products.
    In light of the different uses of the term ``compartment'' that 
already exist in the test procedures, DOE concluded that developing a 
single definition for the term would not add greater clarity or 
uniformity to the test procedures, since it would require establishing 
a new term to denote some of the existing uses of the term. Instead, 
DOE is proposing to add a dual definition that mirrors its 
understanding of the term's two key meanings in the test procedures. 
DOE also proposes to add instructional language to its test procedures 
that will clarify how the concept of compartments should be used in 
classifying products and in conducting tests.
    In order to determine which definition applies to a given basic 
model (e.g., cooled cabinet, refrigerator, or hybrid refrigerator), DOE 
proposes that the person testing the unit must first determine the 
volume and temperature range of each compartment within the unit. The 
proposed language provides instructions for how to determine which 
spaces within a cabinet must be evaluated as compartments and how to 
configure those spaces to determine their volume. Once the volume and 
temperature range of each compartment has been identified, the product 
would be classified according to the existing definitions for 
refrigerator, refrigerator-freezer, and freezer, and the new 
definitions proposed in this notice for cooled cabinets, hybrid 
refrigeration products and non-compressor products. For example, if at 
least half, but not all, of the refrigerated volume of a particular 
refrigerated cabinet is comprised of a compartment or multiple 
compartments that are capable of maintaining compartment temperatures 
above 39[emsp14][deg]F, but not below 39[emsp14][deg]F, or in a range 
that extends no lower than 37[emsp14][deg]F but at least as high as 
60[emsp14][deg]F, that cabinet would be classified as a hybrid 
refrigeration product. The compartment types within the remainder of 
the volume of the cabinet and its refrigeration system technology would 
dictate whether it is a hybrid refrigerator, hybrid refrigerator-
freezer, hybrid freezer, or hybrid non-compressor refrigerator.
    DOE proposes that manufacturers and testing facilities use the 
following principles when selecting spaces within a given basic model 
to evaluate as compartments: (1) Each compartment to be evaluated would 
be an enclosed space without subdividing barriers that divide the 
space--a subdividing barrier would be defined as a solid barrier 
(including those that contain thermal insulation) that is sealed around 
all of its edges to prevent air movement from one side to the other, or 
has edge gaps insufficient to permit thermal convection transfer from 
one side to the other that would cause the temperatures on both sides 
of the barrier to equilibrate; (2) each evaluated compartment would not 
be a zone of a larger compartment unless the zone is separated from the 
larger compartment by subdividing barriers; and (3) if a subdividing 
barrier can be placed in multiple locations, it would be placed in the 
median position, or, if it can be placed in an even number of 
locations,

[[Page 74907]]

it would be placed in the near-median position that results in less 
cellar compartment volume.
    The first instruction would prevent multiple compartments from 
being evaluated in aggregate when classifying a basic model. This step 
would prevent, for example, considering a freezer compartment and fresh 
food compartment of a refrigerator-freezer to be all one single 
compartment. The second instruction would require that there be a 
substantial physical barrier between zones that are treated as separate 
compartments, which would prevent, for example, a single compartment 
with warm temperatures at the top and cool temperatures at the bottom 
from being considered two separate compartments. Although some products 
could maintain different temperature zones in such a fashion, DOE is 
concerned that allowing such zones to be considered separate 
compartments would significantly complicate classifying models because 
the separation between the zones would not be very well defined, and it 
could change depending on operating conditions and temperature control 
settings. The third instruction seeks to ensure consistency in how to 
prepare a subdivided compartment for testing set-up in case the 
consumer can adjust the position of a compartment-subdividing barrier.
    DOE proposes that these instructions be followed when classifying a 
given basic model based on the volume of its compartment(s)--they would 
be inserted as a new paragraph within section 5.3 of Appendix A and 
Appendix B. DOE proposes to establish a definition for ``compartment'' 
allowing two meanings--one consistent with the proposed instructions 
for classifying products, and the second to denote all of the space 
within a product that is associated with a given temperature range. 
This definition would appear in Section 1 of both Appendices A and B. 
Finally, DOE proposes to include the set-up requirement for moveable 
subdividing barriers in section 2.7 of Appendix A and in section 2.5 of 
Appendix B. DOE requests comment on these proposals and their placement 
in the regulations.
    DOE proposes to include in 10 CFR 429.14 and 429.61 descriptions of 
how manufacturers would determine the appropriate compartment 
classifications. DOE proposes that the product category would be based 
on measured compartment volumes and temperatures. The proposed 
provisions in 10 CFR 429.14 and 429.61 would require manufacturers to 
determine compartment volumes according to the provisions in the 
applicable test procedure, including the proposed clarifications to 
section 5.3 of Appendix A and Appendix B discussed in the paragraph 
above, and to base the product classification on these measured 
volumes. Compartment temperatures would be determined according to the 
applicable test procedure for the certified product, but at an ambient 
temperature of 72.0[emsp14][deg]F<plus-minus>1.0[emsp14][deg]F 
(22.2<plus-minus>0.6 [deg]C). These measurements would determine the 
temperature a compartment is capable of maintaining. The measured 
compartment volumes and temperatures would determine the appropriate 
product category for certification based on the proposed product 
definitions in 10 CFR 430.2. These proposed provisions would help to 
clarify the distinction between different refrigeration products--e.g., 
whether a given product is a miscellaneous refrigeration product or a 
refrigerator-freezer.

F. Cellar Compartments

    While the term ``cellar compartment'' has a connotation associated 
with the storage of wine, DOE is tentatively proposing an approach that 
would determine the appropriate test method for a compartment based on 
that compartment's physical and performance characteristics. DOE is 
taking this approach in order to apply an objective set of criteria 
that would enable a manufacturer or testing facility to readily 
determine whether a given compartment should be treated as a cellar 
compartment for testing purposes. This additional level of clarity 
should provide manufacturers and testing facilities sufficient 
instruction to ensure that all parties test compartments in a 
consistent manner. DOE is also interested in whether other, more usage-
neutral terms might be better suited in designating this type of 
compartment other than the term ``cellar.''
1. Cellar Compartment Definition
    With coverage and definitions proposed for cooled cabinets, DOE 
also proposes to define the volume within a cabinet that is not 
designed to maintain compartment temperatures below 39[emsp14][deg]F. 
DOE previously referred to these volumes as wine storage compartments. 
(See, e.g., 77 FR 3559, 3569 (Jan. 25, 2012).) However, using ``wine 
storage compartment'' could potentially conflict with DOE's goal of 
using terms that do not suggest a specific cooling application. AS/NZS 
4474.1-2007 includes a definition for ``cellar compartment'' to 
describe a compartment designed to reach temperatures warmer than those 
of fresh food compartments. DOE proposes adopting this term and 
defining it as ``a refrigerated compartment within a consumer 
refrigeration product that is capable of maintaining compartment 
temperatures either (a) no lower than 39[emsp14][deg]F (3.9 [deg]C), or 
(b) in a range that extends no lower than 37[emsp14][deg]F (2.8 [deg]C) 
but at least as high as 60[emsp14][deg]F (15.6 [deg]C).''
    However, DOE is not proposing to use the same definition as AS/NZS 
4474.1-2007, which applies a complicated set of requirements for 
classifying cellar compartments.\8\ DOE believes that its proposed 
definition sufficiently distinguishes cellar compartments from fresh 
food and freezer compartments without the need for the more complex 
requirements set out in the AS/NZ protocol.
---------------------------------------------------------------------------

    \8\ For example, the average temperature in such a compartment 
must, for at least one setting of the controls, be within the range 
8 [deg]C to 14 [deg]C (46 [deg]F to 57 [deg]F) when tested in a 32 
[deg]C (90 [deg]F) ambient temperature condition--however, for some 
product types, if the product has no fresh food compartment, a 
temperature within this range must also be attainable when tested in 
10 [deg]C and 43 [deg]C ambient temperature conditions. See AS/NZS 
4474.1-2007, sections 3.6 and 3.6.3 and Table 3.2.
---------------------------------------------------------------------------

    As with the use of the term ``compartment'' for freezer 
compartments and fresh food compartments, DOE proposes that the term 
``cellar compartment'' would be used in different ways, as described in 
section III.E. For example, one would be able to consider a single 
cellar compartment within a wine chiller that has multiple cellar 
compartments. However, one would also be able to consider ``the cellar 
compartment temperature'' or ``the cellar compartment refrigerated 
volume,'' concepts that would refer to the entire cellar compartment 
space within the product in the same way that this concept is applied 
in sections 5.1.3 and 5.3 of Appendix A for fresh food compartments.
    DOE invites comment on its definition for cellar compartment.
2. Cellar Compartment Standardized Temperature
    In order to ensure that energy test results are both repeatable and 
representative of consumer use, the DOE test procedures require the use 
of compartment temperatures that target standardized temperatures 
representative of those that are typical of consumer usage. For 
example, the standardized freezer compartment temperature for the DOE 
test of a freezer is 0[emsp14][deg]F (see Appendix B, section 3.2). For 
cellar compartments, DOE proposes to specify a standardized temperature 
of 55[emsp14][deg]F. This temperature has already

[[Page 74908]]

been adopted as a standardized test temperature for wine storage 
compartments in the test procedures for wine chillers adopted by 
California (2012 Appliance Efficiency Regulations, CEC-400-2012-019-
CMF, Table A-1, p. 70), Canada (Energy Performance and Capacity of 
Household Refrigerators, Refrigerator-Freezers, Freezers, and Wine 
Chillers, Canadian Standards Association, Standard C300-08 (``CSA C300-
08''), section 5.3.6.2), and the Association of Home Appliance 
Manufacturers (AHAM) (AHAM HRF-1-2008, section 5.6.2), as well as in 
DOE test procedure waivers for products combining wine storage and 
other compartments (see, for example, the decision and order notices 
granting waivers to Liebherr (72 FR 20333 (Apr. 24, 2007)) and Sanyo 
(77 FR 49443 (Aug. 16, 2012))). It is also very close to the 12 [deg]C 
(54[emsp14][deg]F) temperature already adopted in AS/NZS 4474.1-2007, 
Table 3.5, for cellar compartments. Because a standardized temperature 
of 55[emsp14][deg]F has already been widely adopted, this requirement 
is familiar to industry and is based on an engineering approach that 
has been vetted and reviewed. In addition, DOE market research of 
products with cellar compartments revealed common temperature ranges of 
45[emsp14][deg]F to 65[emsp14][deg]F, with 55[emsp14][deg]F often 
representing the most common target temperature used. Accordingly, DOE 
is proposing to modify section 3.2 of Appendix A to require a 
55[emsp14][deg]F standardized temperature be used for cellar 
compartments.
    DOE requests comment on its selection of 55[emsp14][deg]F as the 
cellar compartment standardized temperature.
3. Cellar Compartment Temperature Measurement
    The DOE test procedures provide instructions for measuring 
compartment temperatures during tests. For example, section 5.1 of 
Appendix A requires that temperatures be measured at the locations 
prescribed in Figures 5.1 and 5.2 of AHAM HRF-1-2008. Section 5.1.1 of 
Appendix A indicates that the compartment temperature at any given time 
be equal to the average at that time of the temperatures measured by 
all sensors placed in that compartment. Similarly, section 5.1.2 of 
Appendix A indicates that the measured compartment temperature for the 
test is based on a time average of the compartment temperatures 
recorded during the test period. Finally, section 5.1.3 of Appendix A 
requires that the fresh food compartment temperature be calculated as 
the volume average of the temperatures of the fresh food compartments 
within the product, and section 5.1.4 provides a similar requirement 
for freezer compartments.
    With respect to temperature sensor placement within a compartment, 
section 5.5.5.4 of AHAM HRF-1-2008, which is referenced in the DOE test 
procedure, requires that the temperature measurement of wine storage 
compartments in wine chillers follow the same sensor placement 
requirements as fresh food compartments. DOE proposes to adopt the same 
approach for the measurement of cellar compartment temperatures in 
cooled cabinets and in hybrid refrigeration products. To implement this 
step, DOE is proposing to add a reference to cellar compartments in 
section 5.1 of Appendix A, indicating that temperature sensor placement 
within these compartments would be performed as indicated in Figure 5.1 
of AHAM HRF-1-2008. DOE also proposes to require volume-weighted 
averaging of cellar compartment temperatures in cases where there are 
multiple cellar compartments, similar to the current requirements for 
volume-weighted averaging of fresh food and freezer compartments in 
sections 5.1.3 and 5.1.4 of Appendix A.
    For cellar compartments contained in products such as refrigerators 
or refrigerator-freezers that are not hybrid refrigeration products, 
DOE is not proposing to require a cellar compartment temperature 
measurement. The temperature of the fresh food and/or freezer 
compartments of such products would be the basis of energy use 
calculations, without consideration of the temperatures maintained in 
the cellar compartments. This proposal is consistent with the current 
testing requirements for special compartments, and for ice freezing 
compartments of all-refrigerators, which are also compartments 
representing a small portion of the refrigerated space that do not 
dominate their products' energy use. The cellar compartments of these 
products would represent less than half of the refrigerated volume, and 
the energy use of the product would be dominated by the colder fresh 
food and/or freezer compartments, making measurement of the cellar 
compartments' temperatures unnecessary. Also, as proposed in section 
III.F.4, any temperature controls of these compartments would be set in 
their coldest position for the test, as required for special 
compartments by the current test procedure (see section 2.7 of Appendix 
A).
    The requirements for measurement of temperatures in cellar 
compartments would be placed in a new section 5.1.5.
    DOE requests comments on these proposals for the measurement of 
cellar compartment temperatures.
4. Cellar Compartments as Special Compartments
    Section III.F.3 discusses DOE's proposal to not require that cellar 
compartment temperatures be measured for products that are not cooled 
cabinets or hybrid refrigeration products. In DOE's view, the fresh 
food and/or freezer compartments would dominate product energy 
consumption when compared to cellar compartments both because of the 
cellar compartments' much warmer standardized temperature and the 
relative volume size differences between the cellar compartment (which 
is small) and the remaining colder compartments (i.e., fresh food and 
freezer compartments). However, cellar compartments that have their own 
separate temperature control may have a significant influence on 
product energy use. Hence, in these cases, DOE proposes to treat these 
types of compartments as special compartments, which would require a 
manufacturer to apply the existing test procedure requirements for 
special compartments. These procedures require that special 
compartments be tested at their coldest temperature setting except for 
those special compartments for which any portion of the temperature 
range is achieved through the addition of heat to the compartment. In 
those cases involving the addition of heat, the measurement would be 
the average of two sets of tests, with the temperature settings for the 
special compartments in the coldest setting for one set of tests and in 
the warmest setting for the other. (See Appendix A, section 2.7 or 
Appendix B, section 2.5.) DOE requests comment on this proposal to 
require that cellar compartments with their own temperature control 
within products that are not cooled cabinets or hybrid refrigeration 
products be treated as special compartments.
5. Temperature Settings and Energy Use Calculations
    The refrigerator and refrigerator-freezer test procedure (Appendix 
A) uses the compartment temperatures measured in fresh food and freezer 
compartments to determine the temperature settings for additional tests 
and to calculate the energy use associated with the product at the 
standardized compartment temperatures. DOE proposes using a similar 
approach for cellar compartments.
    DOE's proposed approach to incorporate cellar compartments into

[[Page 74909]]

the temperature control setting and test selection requirements, which 
are used to calculate energy use, would apply to hybrid refrigeration 
products and cooled cabinets. The amendments DOE is considering adding 
to section 3 of Appendix A would consist of the following steps:
    (1) The temperature controls for cellar compartments would be 
placed in the median position for a first test.
    (2) The temperature control setting for the second test would 
depend on all of the measured compartment temperatures, including that 
of the cellar compartment. The setting would be warm for all 
compartments, including the cellar compartment, if the compartment 
temperatures measured for the first test are all below their 
standardized temperatures; otherwise, the temperature controls would 
all be set to their coldest settings.
    (3) If all of the measured compartment temperatures are lower than 
their standardized temperatures for both tests, the energy use 
calculation would be based only on the second test.
    (4) If the measured compartment temperature of any compartment is 
warmer than its standardized temperatures for a test with the controls 
in the cold setting, the energy use calculation would be based on cold- 
and warm-setting tests, subject to specific restrictions based on 
compartment temperatures, measured energy use, except that for non-
compressor refrigeration products, the energy use calculation would be 
based only on the cold-setting test.
    (5) If neither (3) nor (4) occur, the energy use calculation would 
be based on both tests.
    (6) The test procedure would also allow an energy use rating to be 
based simply on the results of a single first test, if that test is 
conducted with the compartment temperature controls in their warmest 
setting, provided that the measured compartment temperatures are all 
cooler than their standardized temperatures.
    For cellar compartments that are not part of cooled cabinets or 
hybrid refrigeration products, these requirements would not apply; as 
discussed in section III.F.3, the temperatures of such compartments 
would not be measured.
    DOE proposes that the energy use calculations for cooled cabinets 
and hybrid refrigeration products be based on the measured cellar 
compartment temperatures (as well as the fresh food and/or freezer 
compartment temperatures for hybrid refrigeration products), using the 
measured cellar compartment temperature to calculate a weighted average 
energy use, as is done in the existing test procedures for 
refrigerators and refrigerator-freezers (see Appendix A, section 6.2). 
For hybrid refrigeration products, the highest of the energy use 
calculations would be used as the product's energy use rating. In some 
cases, this would be the highest of three calculations, one each based 
on the measured freezer, fresh food, and cellar compartment 
temperatures.
    DOE requests comment on these proposals for incorporating cellar 
compartment temperature measurements into the test procedure 
requirements for temperature control settings and the test selections 
to be used to calculate energy use for cooled cabinets and hybrid 
refrigeration products.
6. Volume Calculations
    Existing test procedures for wine chillers prescribe capacity 
ratings that are based on volume (see for example, AHAM HRF-1-2008, 
section 4). The test procedures generally explain how to calculate the 
volume of a wine chiller. These instructions are the same as those used 
when calculating the volume of a refrigerator. See, e.g., AHAM HRF-1-
2008, section 4.1, and CSA C300-2008, section 4.1. In addition, the 
existing test procedures provide that the adjusted volume for wine 
chillers is equal to the total refrigerated volume. Similarly, these 
procedures indicate that the volume adjustment factor for wine chillers 
is equal to 1.0. See, e.g., AHAM HRF-1-2008, section 6.3.5 and CSA 
C300-2008, sections 7.3.1 and 7.3.2. Consistent with this approach, DOE 
proposes to require that calculating the refrigerated volume of a 
cellar compartment be conducted the same way as for the refrigerated 
volume of a fresh food compartment. In calculating the adjusted volume 
of cooled cabinets, the volume adjustment factor for cellar 
compartments would be set equal to 1.0.
    However, DOE proposes to apply a volume adjustment factor for those 
cellar compartments in refrigeration products that combine cellar 
compartments with other types of compartments to account for the warmer 
temperature and reduced thermal load of the cellar compartments. 
Similar to the determination of the volume adjustment factor for 
freezer compartments, DOE proposes to set a volume adjustment factor 
for cellar compartments based on the difference between the 55 [deg]F 
standardized compartment temperature and the 90 [deg]F ambient 
temperature required for testing. The adjustment factor is equal to the 
ratio between this difference for a compartment type and the 
temperature difference for a fresh food compartment. Hence, the volume 
adjustment factor for cellar compartments of hybrid products would be 
determined as follows.
[GRAPHIC] [TIFF OMITTED] TP16DE14.003

    The adjustment factor would reduce the weighting of a cellar 
compartment in calculating the adjusted volume to account for its 
reduced thermal load, similar to the way the adjustment factors for 
freezer compartments increase the weighting of their volume in the 
calculation. DOE requests comments on the proposals for calculating 
cellar compartment volume and for using a volume adjustment factor of 
1.0 for these compartments for cooled cabinets and a volume adjustment 
factor of 0.69 for other refrigeration products.
7. Convertible Compartments
    The DOE test procedures have special requirements for compartments 
that are convertible between fresh food and freezer compartment 
temperature ranges. With the proposed amendments to account for cellar 
compartments, some compartments may also be convertible between fresh 
food and cellar compartment temperature ranges, or they may be 
convertible over all three temperature ranges (i.e., cellar, fresh 
food, and freezer compartment temperatures). To address these 
possibilities, DOE proposes to modify the requirements for convertible 
compartments. The proposed changes would include establishing target 
temperature ranges in Appendix A, section 3.2.3 for convertible 
compartments that are appropriate for compartments that can achieve 
cellar compartment temperature ranges. The existing requirement that 
the convertible compartment be tested in its highest energy use 
position would not change, nor would the requirement that separate 
auxiliary convertible compartments be tested with the convertible 
compartment set as the compartment type (freezer, fresh food, or 
cellar) that represents the highest energy use position. DOE requests 
comments on these proposed test procedure changes to address 
compartments that are convertible between the cellar compartment 
temperature range and fresh food and/or freezer temperature range.

[[Page 74910]]

G. Test Procedures for Cooled Cabinets

1. Ambient Temperature and Usage Factor
    The DOE test procedures require testing of refrigerators and 
refrigerator-freezers in an environmentally controlled room at 90 
[deg]F temperature conditions, with the cabinet doors kept closed to 
simulate operation in more typical room temperature conditions (72 
[deg]F (22.2 [deg]C)) with door openings (see 10 CFR 430.23(a)(10)). 
The test procedures for freezers also require testing with closed doors 
in a 90 [deg]F room, but the test procedures apply adjustment factors 
to the measurements of energy use during the test to adjust for average 
household usage (see Appendix B, section 5.2.1.1). The adjustment 
factors account for the overestimation of the impacts from door-
openings and related thermal loads associated with the 90 [deg]F test 
condition. Appendix B corrects for this overestimation by applying 
correction factors equal to 0.7 for chest freezers and 0.85 for upright 
freezers (see Appendix B, section 5.2.1.1). These correction factors 
acknowledge that the added load associated with door openings and other 
field use thermal loads are significantly less for freezers than for 
refrigerators and refrigerator-freezers, because the doors of products 
such as upright freezers and chest freezers are expected to be opened 
less frequently than the doors of a typical household refrigerator or 
refrigerator-freezer.
    California initially established test procedures unique for wine 
chillers in its 2002 Appliance Efficiency Regulations. (Appliance 
Efficiency Regulations, California Energy Commission, P400-02-021F, 
Nov. 2002) These test procedures used a 55[emsp14][deg]F standardized 
compartment temperature and a 0.85 adjustment factor. In material 
presented in the October 19, 2000 California workshop discussing the 
potential establishment of energy standards for wine chillers, Sub-Zero 
suggested using the 0.85 adjustment factor. Sub-Zero indicated that 
because the door opening frequency for wine chillers is much more 
similar to that of freezers than refrigerators, the 0.85 adjustment for 
upright freezers would be appropriate for wine chillers. (Comments 
Presented at the California Energy Commission October 19, 2000, 
Workshop, No. 1 at p. 10) California adopted this usage factor for wine 
chillers, and it was also adopted in wine chiller test procedures 
contained in AHAM HRF-1-2008 and CSA C300-08.
    DOE considered adopting a test procedure for cooled cabinets using 
a 90[emsp14][deg]F ambient temperature condition and a 0.85 usage 
factor. To investigate whether these would be appropriate parameters 
for the test procedure, DOE evaluated a limited amount of field energy 
use data for wine chillers and tested a number of wine chillers, 
including products using vapor-compression refrigeration systems and 
thermoelectric refrigeration systems.\9\
---------------------------------------------------------------------------

    \9\ Vapor-compression refrigeration systems use a compressor and 
condenser unit integrated into the product's cabinet assembly. This 
type of system is used for the vast majority of refrigerators, 
refrigerator-freezers, and freezers.
---------------------------------------------------------------------------

    DOE conducted field testing for two vapor-compression wine 
chillers. The test results for these products are summarized in Table 
III-3 below. DOE calculated the average annual field energy use by 
adjusting the energy use measured for the test period, which was 
several months in duration, multiplying by hours in a year and dividing 
by the number of hours in the test period. DOE used these field data to 
calculate the adjustment factor to apply to the laboratory test 
measurement to correctly predict the observed field test energy use. 
The field data suggest that the 0.85 adjustment factor is too high for 
wine chiller-type products, such as the cooled cabinets DOE is 
considering regulating.

                                    Table III-3--Wine Chiller Field Test Data
----------------------------------------------------------------------------------------------------------------
                                                                    Laboratory
                                                                      energy                          Field/
                                                   Rated energy     consumption    Average field    Laboratory
                    Unit No.                        use  (kWh/      (kWh/year,      energy use        energy
                                                      year)*       without 0.85     (kWh/year)      consumption
                                                                    adjustment                         ratio
                                                                     factor)**
----------------------------------------------------------------------------------------------------------------
1...............................................             368             433             181            0.42
2...............................................             320             376             144            0.38
----------------------------------------------------------------------------------------------------------------
* Ratings obtained from the California Energy Commission's Appliance Efficiency Database, available at http://www.appliances.energy.ca.gov/AdvancedSearch.aspx.
** The laboratory energy consumption measurement without the 0.85 factor is calculated by dividing the rated
  energy use by 0.85.

    DOE tested eight vapor-compression wine chillers, using a 
standardized temperature of 55[emsp14][deg]F, with the products' light 
switches turned off. Each unit was tested at two ambient temperatures: 
90[emsp14][deg]F, the temperature that DOE is currently proposing, and 
72[emsp14][deg]F, a temperature selected to represent typical field 
usage conditions. This temperature had been selected as an appropriate 
one to represent room temperature in the waiver test procedure 
initially proposed by GE for refrigerator-freezers with variable anti-
sweat heater controls. (73 FR 10425, 10427 (Feb. 27, 2008)). DOE's 
laboratory test data is presented in Table III-4. This data is 
presented without any adjustment for usage or other correctional 
factors.

                        Table III-4--Vapor-Compression Wine Chiller Laboratory Test Data
----------------------------------------------------------------------------------------------------------------
                                                                     72 [deg]F       90 [deg]F      Ratio of 72
                                                       Total      ambient energy  ambient energy    [deg]F & 90
                DOE sample number                  refrigerated     use  (kWh/      use  (kWh/     [deg]F energy
                                                  volume (ft\3\)       year)           year)           tests
----------------------------------------------------------------------------------------------------------------
1...............................................             1.7             120             238            0.50
2...............................................             5.9             165             375            0.43
3...............................................             5.7             225             564            0.40

[[Page 74911]]

 
4...............................................             5.4             106             268            0.40
5...............................................             5.9             134             315            0.42
6...............................................             5.9              85             189            0.45
7...............................................            15.4             238             423            0.56
8...............................................            17.3             224             430            0.53
Average.........................................  ..............  ..............  ..............            0.46
----------------------------------------------------------------------------------------------------------------
Note: Energy use is as measured, without multiplying by usage adjustment factors.

    The table also presents the ratios between the energy use measured 
in 72[emsp14][deg]F temperature conditions and the energy use measured 
in 90[emsp14][deg]F conditions. These energy use ratios can be 
considered to represent the correction factors that would be 
appropriate to apply to measurements made in 90[emsp14][deg]F 
temperature, in order to estimate energy use at 72[emsp14][deg]F with 
no door openings. These ratios were determined to vary from 0.40 to 
0.56, with a 0.46 average. If door openings for wine chillers are 
limited, and represent a modest load, a usage factor that accounts for 
not only the difference in ambient temperature between test and field 
conditions, but also for these door openings, would therefore likely be 
slightly higher than 0.46.
    The usage factor of 0.85 currently adopted in existing wine chiller 
test procedures is based on the test procedure for upright freezers, 
and was initially suggested for use with wine chillers based on a claim 
that upright freezers and wine chillers had similar usage frequencies--
specifically with respect to door openings. However, the elevated 
ambient temperature most likely does not have as significant of an 
effect on freezer energy consumption as it does on cooled cabinet 
energy consumption due to the higher standardized compartment 
temperature of the latter. Specifically, for a freezer compartment at 
0[emsp14][deg]F, the difference between the compartment and the ambient 
temperatures increases by 25 percent between 72[emsp14][deg]F and 
90[emsp14][deg]F; whereas, for a wine chiller, this same elevation in 
ambient temperature represents a 106-percent increase in the 
temperature difference between the ambient and a compartment 
temperature of 55[emsp14][deg]F. From this information, DOE tentatively 
concludes that the current test procedures for wine chillers 
overcompensate for added loads, and that the appropriate adjustment 
factor for a test conducted in a 90[emsp14][deg]F condition should be 
significantly lower than 0.85.
    Because of the precedent set by the California Energy Commission 
(CEC) and AHAM procedures for testing vapor-compression wine chillers 
in a 90[emsp14][deg]F ambient condition, DOE proposes to use this same 
condition for its procedure for testing vapor-compression cooled 
cabinets. Unlike non-compressor refrigerators, discussed later in this 
section, vapor-compression wine chillers generally are able to maintain 
the 55[emsp14][deg]F target temperature in a 90[emsp14][deg]F ambient 
temperature test condition, so testing at this ambient temperature 
would be representative of their energy use. However, DOE proposes to 
use an adjustment factor of 0.55 for vapor-compression cooled cabinets. 
This factor is more consistent with the expected actual energy use of 
these products, based upon the laboratory and field data that DOE has 
obtained, than the 0.85 factor used in the current CEC, Natural 
Resources Canada (NRCan), and AHAM tests. Specifically, this 0.55 
factor is based on the 0.46 ratio of measured energy use values 
observed between the closed-door energy test results in typical room 
conditions (72[emsp14][deg]F) and the 90[emsp14][deg]F ambient test 
condition, multiplied by the 1.2 usage factor representing additional 
loads (0.46 times 1.2 equals 0.55). This approach would be consistent 
with current testing for vapor-compression wine chillers, but would 
provide a more appropriate estimate of field energy use.
    In the case of thermoelectric-based wine chillers, the available 
data present a less clear picture. DOE's laboratory test data for 
thermoelectric wine chillers is presented in Table III-5. DOE tested 
three thermoelectric products in both 72[emsp14][deg]F and 
90[emsp14][deg]F ambient temperature conditions, using a 
55[emsp14][deg]F standardized temperature. The energy use results for 
both 72[emsp14][deg]F and 90[emsp14][deg]F ambient temperature 
conditions are presented without any adjustment factor. The results are 
for tests with the products' light switches turned off. The table 
presents the ratios between the energy use measured in 72[emsp14][deg]F 
temperature conditions and the energy use measured in 90[emsp14][deg]F 
conditions.

                          Table III-5--Thermoelectric Wine Chiller Laboratory Test Data
----------------------------------------------------------------------------------------------------------------
                                                                     72 [deg]F       90 [deg]F      Ratio of 72
                                                       Total      Ambient energy  Ambient energy    [deg]F & 90
                DOE sample number                  refrigerated     use  (kWh/      use  (kWh/     [deg]F energy
                                                  volume (ft\3\)       year)           year)           tests
----------------------------------------------------------------------------------------------------------------
1...............................................             0.6             118             485            0.24
2...............................................             1.1             366             647            0.57
3...............................................             2.3             553             552            1.00
Average.........................................  ..............  ..............  ..............            0.60
----------------------------------------------------------------------------------------------------------------
Notes: Energy use is as measured, without multiplying by usage adjustment factors.

    The energy use of the thermoelectric wine chillers measured in 
72[emsp14][deg]F conditions increased in a fashion that is roughly 
consistent with the product volume. However, the same was not true for 
the tests conducted in 90[emsp14][deg]F conditions. Test samples 1 and 
3 were not able to maintain a 55[emsp14][deg]F compartment temperature 
in 90[emsp14][deg]F

[[Page 74912]]

ambient tests. For sample 1, the compartment temperature was 
57[emsp14][deg]F at both the cold and the median temperature control 
settings, and 66[emsp14][deg]F for the warm setting, while for sample 
3, the compartment temperature was 71[emsp14][deg]F for any selected 
setting. The energy use of these products did not increase consistently 
with elevated ambient temperature because the thermoelectric 
refrigeration systems did not have sufficient refrigeration capacity to 
maintain a 55[emsp14][deg]F compartment temperature. In contrast, 
Sample 2, which was able to maintain a compartment temperature of 
55[emsp14][deg]F in the 90[emsp14][deg]F ambient condition while 
operating in the median temperature control setting, used the most 
energy. This unit has sufficient refrigeration system capacity to 
maintain the target temperature, which correspondingly caused its 
energy use to be higher.
    The results show that testing these products in a 90[emsp14][deg]F 
ambient temperature condition does not provide a representative 
indication of their energy use in typical field use conditions. This 
observation is also consistent with the varying field/laboratory energy 
use ratios exhibited for these products. Test sample 3 used no more 
energy in 90[emsp14][deg]F testing than it did in 72[emsp14][deg]F 
testing, which suggests that it was already operating at its maximum 
refrigeration capacity at the 72[emsp14][deg]F ambient condition. The 
energy use of this product would be significantly underestimated by 
testing it in 90[emsp14][deg]F temperature conditions and applying an 
appropriate adjustment factor. While a different usage adjustment 
factor could be chosen to provide a proper prediction of the unit's 
energy use in 72[emsp14][deg]F field conditions, some products may have 
sufficient refrigeration system capacity for operation in 
90[emsp14][deg]F conditions, and such products would require a lower 
usage adjustment factors to accurately predict energy use in 
72[emsp14][deg]F conditions. In other words, based on these data, a 
single adjustment factor may not necessarily apply to all 
thermoelectric-based wine chiller units.
    To address the problems noted above, DOE proposes that non-
compressor cooled cabinets be tested with closed doors in a 
72[emsp14][deg]F ambient temperature, with an upward adjustment in the 
measured energy use to account for the added load associated with door 
openings. DOE does not have data that would provide direct evidence of 
the energy use impact associated with added field loads typical for 
wine chillers (or upright freezers, which are claimed to have usage 
similar to wine chillers) as compared to operation with doors closed in 
the same ambient conditions. However, DOE considered the 0.7 and 0.85 
adjustment factors used for chest and upright freezers, respectively, 
and noted that the adjustment factor for upright freezers is 1.2 times 
the adjustment factor for chest freezers. DOE believes that chest 
freezers experience less frequent door openings than upright freezers, 
which is likely to yield a negligible impact on their energy use in the 
field. While DOE does not have data to support this view, DOE believes 
it is a reasonable assumption, one which leads to the conclusion that 
the ratio of 1.2 mentioned above would be an appropriate usage factor 
to represent the energy use impact associated with door-opening and 
related loads at the usage frequency typical of upright freezers, and, 
by extension, wine chillers. Hence, multiplying by 1.2 the energy use 
measured in a closed-door test in normal room temperature conditions, 
i.e., 72[emsp14][deg]F, would provide a projection of typical field 
energy use for upright freezers or wine chillers. In the absence of 
additional data demonstrating the impact, DOE proposes to apply a 1.2 
adjustment factor for testing thermoelectric and other non-compressor 
cooled cabinets tested with closed doors in a 72[emsp14][deg]F ambient 
condition.
    DOE requests comment on its proposals for ambient temperatures and 
usage adjustment factors for both vapor-compression and non-compressor 
cooled cabinets. DOE requests information regarding field energy use of 
wine chillers and other cooled cabinets which it could use to confirm 
or adjust the proposed adjustment factors.
2. Light Bulb Energy
    Cooled cabinets such as wine chillers often have glass doors that 
permit consumers to display stored items and manually-operated lighting 
to illuminate these items for better viewing. The procedures under 
Appendices A and B provide that electrically-powered features not 
required for normal operation and that are manually-initiated and 
manually-terminated, must be set in their lowest energy use position 
during the energy test. See, e.g., HRF-1-2008, section 5.5.2(e) 
(incorporated by reference in Appendix A). However, for wine chillers 
with manual light switches, CSA C300-08 requires two tests, one with 
the lights turned on and one with the lights turned off, and averaging 
the results. See CSA C300-08, section 5.3.7.1. In contrast, the CEC and 
AHAM tests do not provide instructions for light switches for testing 
wine chillers. Instead, these test procedures include or refer to 
language similar to that cited above, which indicates that such 
features should be set in their lowest energy use position for testing.
    Field survey data collected by LBNL suggests that testing with the 
lights off would be more representative of field use than testing with 
the lights on or using the average of the results of tests conducted 
with the lights on and off. Specifically, the survey found that roughly 
63 percent of respondents indicated that their wine chillers or 
beverage coolers had internal lights, and of these, 10 percent 
indicated that the lights are usually on compared with 90 percent who 
indicated that the lights are usually off. (U.S. Residential 
Miscellaneous Refrigeration Products: Results from Amazon Mechanical 
Turk Surveys, LBNL-6194E, No. 10 at pp. 43-44)
    Because the survey data point to the limited use of interior 
lighting in these products, and the added test burden of conducting 
tests both with the lights switched on and off, DOE proposes to require 
that cooled cabinets be tested only with the light switches in their 
lowest energy use position, consistent with the test procedures for 
other refrigeration products and the wine chiller test procedures of 
the CEC and AHAM. DOE requests comment on this proposal.

H. Non-Compressor Refrigeration Products

1. Ambient Temperature for Non-Compressor Refrigerators
    As discussed in section III.G.1, DOE is proposing to require that 
non-compressor cooled cabinets be tested in 72 [deg]F ambient 
temperature conditions because testing in 90 [deg]F conditions would 
not be representative of field energy use. However, DOE has concerns 
about adopting a similar approach for non-compressor refrigerators. 
Refrigerators are designed for storing perishable food items and must 
maintain their standardized compartment temperatures in 90 [deg]F 
closed door testing conditions to ensure food safety. The 90 [deg]F 
ambient test conditions are an accepted method for simulating the 
thermal loads on household refrigerators that would occur in more 
typical room temperature conditions with the expected door openings and 
insertion of warm food. This situation is in contrast to cooled 
cabinets, which are not expected to have a door opening frequency and 
usage pattern consistent with refrigerators. Consequently, DOE proposes 
that non-compressor refrigerators be tested in 90

[[Page 74913]]

[deg]F ambient conditions, similar to conventional vapor-compression 
refrigerators. The usage factor for non-compressor refrigerators would 
also be consistent with vapor-compression refrigerators, equal to 1.0.
    However, DOE notes that in its testing of products marketed as non-
compressor refrigerators, none was able to maintain its internal 
compartment temperature within 9 [deg]F of 39 [deg]F, which is the 
standardized temperature for fresh food compartments in the DOE test 
procedure and the temperature cited in the definition for refrigerator 
in 10 CFR 430.2 as the storage temperature that these products must be 
able to achieve. However, unlike non-compressor cooled cabinets, non-
compressor refrigerators would be expected to have a usage intensity 
(i.e., added load associated with door openings and other factors) in 
the field that would push their refrigeration systems to work at full 
capacity. Similarly, such a product would be operating at full capacity 
in a test if its temperature controls are set in the coldest position 
and the compartment temperature is above 39 [deg]F. Hence, DOE expects 
that testing thermoelectric or absorption-based ``refrigerators'' in a 
90 [deg]F ambient temperature condition would be representative of 
their energy use, and that the energy measured for the cold-setting 
test would be the appropriate measurement if the compartment 
temperature rises above the standardized temperature in this setting.
    When measured compartment temperatures are warmer than the 
applicable standardized temperatures, Appendices A and B specify that 
product energy use cannot be rated. The previous test procedures in 
Appendices A1 and B1, which DOE proposes to remove from subpart B to 10 
CFR part 430 in this notice, used an ``extrapolation'' approach to 
calculate energy use when compartment temperatures are warmer than 
their standardized temperatures in the cold setting (see, for example, 
Appendix A1, section 3.2.3). Extrapolation in this case means that the 
energy use is calculated for a compartment temperature that is not 
between the two compartment temperatures measured during the two tests. 
DOE has concerns about adopting the extrapolation approach for non-
compressor refrigerators for two reasons. First, the compartment 
temperatures for these products, as shown in Table III-2, are much 
higher than the standardized temperature. Hence, the energy use 
calculated for the standardized temperature would be much higher than 
the highest level of energy use actually measured for the product. As 
discussed above, the product would be running at maximum capacity for 
the cold-setting test, and would not be expected to operate with higher 
energy use. Second, DOE testing of non-compressor refrigerators shows 
that these products often yield compartment temperatures during the 
cold- and warm-setting tests used in the extrapolation approach that 
are very close to each other, which can result in energy use calculated 
at the standardized temperature (see, for example, Appendix A1, section 
6.2.1.2) that is unrealistically high or low, and sometimes negative. 
For these products, DOE believes that a more consistent result that is 
more representative of field energy use would be obtained by simply 
using the cold-setting test energy use measurement, rather than both 
sets of measurements.
    Hence, to comply with EPCA requirements that test procedures be 
consistent with a representative average use cycle (see 42 U.S.C. 
6293(b)(3)), DOE proposes that non-compressor refrigerators be tested 
in a 90 [deg]F ambient temperature, similar to refrigerators and 
refrigerator-freezers, and that the test result be the energy use 
measured in the cold setting test if one or more compartment 
temperatures are warmer than their standardized temperature for this 
setting.
    On the other hand, DOE recognizes that test measurements for non-
compressor refrigerators for which the coldest compartment temperatures 
are far above the standardized temperatures would effectively be rated 
at a condition that theoretically should require less energy use than 
for operation at the standardized temperature. DOE may consider 
implementing an adjustment in the allowable maximum energy use for such 
products as part of the ongoing energy conservation standard rulemaking 
in order to compensate for this potential difference in measured energy 
use. In order to prepare for such a possibility, DOE proposes to 
require that certification reports for non-compressor refrigerators 
indicate the coldest fresh food compartment temperature achieved by the 
product in the cold setting during the test, if this is warmer than 39 
[deg]F. The reported value would be the average of the coldest 
compartment temperatures observed for the tests used as the basis for 
the certification. DOE proposes that this information would be part of 
the public product-specific information required to be reported for 
non-compressor refrigerators.
    DOE seeks comment on its proposal to require testing of non-
compressor refrigerators in 90 [deg]F ambient temperature conditions, 
and to require that their energy use be calculated with a usage factor 
equal to 1.0. Further, DOE requests comment on its proposal to require 
reporting of the coldest fresh food compartment temperature achieved in 
the test if such a product cannot maintain an internal temperature of 
39 [deg]F or cooler during a test in 90 [deg]F conditions. Finally, DOE 
requests comment on its potential consideration of adjustments to the 
energy conservation standards to be developed for non-compressor cooled 
cabinets that would address the reduced stringency of a test in which 
the compartment temperature is warmer than the standardized 
temperature.
2. Refrigeration System Cycles
    The DOE test procedures for refrigerators and refrigerator-freezers 
use test periods based on the operation of the component within the 
product that consumes the most energy--typically, the compressor. See, 
e.g., Appendix A, section 4.1. The test procedures specifically require 
that the test periods comprise a whole number of complete ``compressor 
cycles.'' Applying a similar approach to non-compressor products, even 
though they do not have compressors and would instead have alternative 
refrigeration systems that may cycle to maintain compartment 
temperatures, would be based on similar reasoning--i.e., to help 
capture the energy usage of the tested product by focusing on the most 
energy consumptive component. To ensure that non-compressor products 
have clear test procedure requirements, DOE proposes to indicate, in 10 
CFR 430.23(cc)(8), that, in the context of non-compressor products, the 
term ``compressor cycle'' means a ``refrigeration cycle'' and that the 
term ``compressor'' refers to a ``refrigeration system.'' DOE views 
this as a simpler approach than establishing parallel identical test 
procedures for non-compressor products or inserting the term ``or 
refrigeration system cycles for non-compressors products'' in the 
existing test procedures where compressor cycles are discussed. DOE 
seeks comment on this proposal.
    DOE notes that it recently modified its test procedures for 
refrigerators, refrigerator-freezers, and freezers to more accurately 
measure the energy consumption of multiple-compressor products. See 79 
FR 22320, 22325-22330 (April 21, 2014). DOE is also aware of non-
compressor products that use multiple refrigeration systems. The 
recently promulgated test procedures for multiple-compressor products 
would also be suitable for application to products with multiple 
refrigeration

[[Page 74914]]

systems. Hence, DOE is proposing to apply these same procedures to non-
compressor products if DOE establishes coverage over them. This step 
would require no further amendments in the test procedures, other than 
the proposed change discussed above (i.e., modifying 10 CFR 430.23) 
that the term ``compressor'' would refer more generally to a 
``refrigeration system'' when used in the context of testing non-
compressor products.

I. Extrapolation for Refrigeration Products Other Than Non-Compressor 
Refrigerators

    Section III.H.1 above discusses proposed test procedure 
requirements for non-compressor refrigerators, which generally do not 
maintain temperatures near fresh food compartment standardized 
temperatures when operating in 90 [deg]F ambient temperature 
conditions. DOE proposes that their calculated energy use be calculated 
as the energy used during the test for the cold temperature setting. In 
contrast with this approach, the test procedures of Appendices A and B 
indicate that a product that fails to meet its standardized temperature 
in any compartment during a test cannot be rated, even if it otherwise 
would meet the definition of a refrigerator, refrigerator-freezer, or 
freezer in 10 CFR 430.2 based on operation at ambient conditions of 
typical consumer use. This approach was established by DOE an interim 
final rule published December 16, 2010. See 75 FR 78810, 78840-78842.
    DOE considered whether to propose adopting the extrapolation 
approach that was previously used in Appendices A1 and B1 as a means 
for testing and rating such products. This approach involved 
calculating energy use for the product at the standardized temperature 
using the measured energy use and compartment temperatures for two 
tests, one conducted using the cold temperature control settings and 
the other using the warm temperature control settings. For this 
calculation, the compartment temperatures measured for both tests are 
warmer than the standardized temperature. The equations used for the 
calculations are found in section 6.2.1.2 of Appendix A for all-
refrigerators and section 6.2.2.2 for refrigerators with freezer 
compartments or refrigerator-freezers--these equations are 
mathematically identical to those used when the standardized 
temperature falls between the compartment temperatures. As discussed in 
section III.H.1, DOE is concerned that in some cases the extrapolation 
approach can result in energy use measurements that are unrealistically 
high or low. In order to safeguard against this possibility, DOE 
proposes to restrict use of the extrapolation approach to tests in 
which the compartment temperature for the warm temperature setting is 
higher than the compartment temperature for the cold temperature 
setting, and the energy use measured for the warm setting is lower than 
the energy use measured for the cold setting.
    DOE expects the proposed restriction to resolve potential issues 
for most refrigeration products that use vapor-compression 
refrigeration technology. For these products, DOE expects that the 
cold-setting compartment temperatures are unlikely to be significantly 
warmer than their standardized temperatures in cases that require use 
of the extrapolation approach--perhaps up to 5 [deg]F higher, rather 
than the overshoot of 9 [deg]F or more observed for non-compressor 
products, as discussed in section III.H.1. Further, DOE expects that 
the warm temperature control settings for these products will generally 
allow operation at compartment temperature more than 5 [deg]F higher 
than the standardized temperature. Hence, the potential crossover of 
observed compartment temperatures (i.e., measuring compartment 
temperature in the warm setting that is not higher than the temperature 
measured in the cold setting) would not likely occur for such products. 
There may be some vapor-compression refrigeration products for which 
such crossover does occur. However, DOE expects that few if any 
products with such characteristics are likely to exist. In such cases, 
a test procedure waiver would be required.
    As discussed in section III.H.1, DOE notes that for non-compressor 
refrigerators, where the cold-setting compartment temperature is 9 
[deg]F or more higher than the standardized compartment temperature, 
the chance that the compartment temperatures are nearly the same for 
both cold and warm temperature control settings is much higher. DOE 
also notes that the very large deviation from typical operating 
compartment temperature for non-compressor refrigerators means that the 
measured energy use associated with extrapolation would not be 
representative of field energy use. Hence, while DOE is proposing to 
add the extrapolation approach to Appendices A and B for use with 
vapor-compression products, DOE is not proposing this approach for non-
compressor refrigerators for the reasons noted above.
    DOE requests comments on its proposal to adopt the extrapolation 
approach for measurement of energy use in Appendices A and B for 
refrigeration products other than non-compressor refrigerators, subject 
to the requirement that the measured warm-setting compartment 
temperature(s) must be warmer than the cold-setting compartment 
temperatures and that the measured energy use must be lower in the warm 
setting.

J. Hybrid Refrigeration Product Test Procedure Amendments

    To adequately address the testing issues involved with assessing 
the energy usage of hybrid refrigeration products, DOE examined a 
number of factors. These factors included appropriate ambient 
temperatures, usage adjustment factors, standardized temperatures, 
temperature control settings, and energy use calculations. These 
different elements, along with DOE's proposals in addressing them, are 
discussed in detail below.
1. Ambient Temperature and Usage Factor
    DOE proposes to require that hybrid refrigeration products be 
tested in 90 [deg]F ambient temperature conditions. These products do 
not have the combination of characteristics that led DOE to consider an 
alternative ambient temperature for testing non-compressor cooled 
cabinets. Most hybrid refrigeration products have vapor-compression 
refrigeration systems that should have sufficient capacity to maintain 
the product's intended compartment temperatures in 90 [deg]F ambient 
temperature conditions. Although DOE is not aware of any hybrid non-
compressor products that can safely store food, such products (if 
developed) should reasonably be expected to maintain compartment 
temperatures at or below the 39 [deg]F standardized temperature for 
fresh food compartments, even with elevated use that would be simulated 
with closed door operation in 90 [deg]F ambient temperature conditions, 
as would be expected for the types of refrigerators and refrigerator-
freezers that are currently covered. Consequently, DOE sees no reason 
to deviate from this specified test condition, which is currently used 
for all regulated consumer refrigeration products.
    DOE also proposes a usage adjustment factor of 0.85 for hybrid 
refrigeration products. Because at least half of the refrigerated 
volume of these products is occupied by the cellar compartment, which 
is often for wine storage, DOE believes that the door opening frequency 
of these products would be

[[Page 74915]]

closer to that of wine chillers than refrigerators. As discussed in 
section III.G.1, a number of test procedures prescribe a usage 
adjustment factor of 0.85 for wine chillers. Although that section 
suggests that a lower adjustment factor than 0.85 may be more 
appropriate for cooled cabinets because of the differing impact of 
testing in 90 [deg]F ambient temperature compared to testing of 
refrigerators, refrigerator-freezers, and freezers, the same argument 
would not necessarily apply to hybrid products because a substantial 
portion of the refrigerated space of hybrid products would be dedicated 
to fresh food and/or freezer compartments. Because hybrid products 
include fresh food and or freezer compartments, using an elevated 
ambient temperature would not produce as dramatic an impact on energy 
use of a hybrid product compared to a cooled cabinet. Also, the 
refrigeration system of a hybrid product would generally be working to 
cool the coldest compartment in the product, while the warmer 
compartments would be cooled by transferring air from the cooler 
compartments, which means the refrigeration system operating efficiency 
(coefficient of performance, ``COP'') of a hybrid product would be more 
typical of the refrigeration systems of refrigerators, refrigerator-
freezers, or freezers than that of cooled cabinets. Hence, the COP 
trend while operating in an elevated ambient temperature environment 
for a hybrid refrigeration product should be more consistent with the 
COP behavior for refrigerators, refrigerator-freezers, and freezers, 
than for cooled cabinets. These arguments suggest that the greater 
sensitivity to elevated ambient temperature for cooled cabinets would 
not necessarily apply to hybrid products. DOE does not have data 
indicating that a 0.85 usage adjustment factor would be inappropriate 
for hybrid refrigeration products. In the absence of such data, DOE 
proposes to use this factor for calculating energy use for hybrid 
products.
    DOE seeks comments on its proposal to specify that hybrid 
refrigeration products be tested in 90 [deg]F ambient temperature 
conditions, and that their energy use be calculated using a 0.85 usage 
adjustment factor.
2. Standardized Temperature, Temperature Control Settings, and Energy 
Use Calculations for Hybrid Refrigeration Products
    Hybrid refrigeration products have cellar compartments, in addition 
to fresh food and/or freezer compartments. As discussed in section 
III.F.2, DOE proposes that 55 [deg]F be used as the standardized 
temperature for cellar compartments. Consistent with this approach, 
this proposal would require testing of the cellar compartments found in 
hybrid refrigeration products using the same standardized temperature.
    When testing hybrid refrigeration products, there may be two or 
three compartment temperatures to compare with standardized 
temperatures, including the cellar, fresh food, and freezer compartment 
temperatures. DOE proposes to require that the procedures for setting 
temperature controls and test selection be consistent with the current 
test procedures for refrigerators, refrigerator-freezers, and freezers 
(see, e.g., Appendix A, sections 3.2.1 and 3.2.2), as described below:
    (1) A first test would be conducted with all temperature controls 
set in their median position.
    (2) If the measured compartment temperatures during the first test 
are all lower than the compartments' standardized temperatures, a 
second test would be conducted with all temperature controls set in 
their warmest positions. If the measured compartment temperatures for 
the second test are still lower than the compartments' standardized 
temperatures, the energy use would be calculated based on the results 
of the second test only. Otherwise, the energy use would be calculated 
based on the results of both tests.
    (3) Conversely, if one or more of the measured compartment 
temperatures during the first test are warmer than the standardized 
temperature(s), the second test would be conducted with all temperature 
controls set in their coldest positions. If, for this second test, the 
measured compartment temperatures are all lower than the compartments' 
standardized temperatures, the results of both tests would be used to 
calculate the energy consumption. If one or more of the compartment 
temperatures are still warmer than the standardized temperatures, the 
energy use would be calculated based on cold- and warm-setting tests, 
subject to restrictions on measured compartment temperatures, measured 
energy use, and product status as a non-compressor refrigerator.
    (4) Alternatively, the energy use could be calculated based on a 
single test conducted with all temperature controls set in their 
warmest position, if the measured compartment temperatures are all 
lower than their compartments' standardized temperatures.
    DOE also proposes to calculate energy use in a manner consistent 
with the procedures currently specified in the test procedures for 
refrigerators and refrigerator-freezers (see, e.g., Appendix A, section 
6.2). Specifically, if the compartment temperatures measured for a test 
conducted with all temperature controls set in their warmest positions 
are all lower than their compartments' standardized temperatures, the 
results of this test alone would be used to determine energy use. Also, 
if two tests were used to determine energy use as described above, a 
weighted average of the test results would first be determined based on 
each of the compartment temperatures individually. See 10 CFR part 430, 
subpart B, Appendix A, section 6.2.2.2. For hybrid refrigeration 
products, this calculation would be performed for the cellar 
compartment temperature as well as the fresh food and/or freezer 
compartment temperature. The rated energy use for the product would be 
based on the highest of the three calculations performed in this 
fashion, or the higher of the two calculations performed. DOE proposes 
to add a third table describing the temperature setting logic in 
section 3 of Appendix A. The table would describe the test sequence and 
the tests to be used for the energy use calculation, similar to the 
existing tables in this section, but for a generalized case in which 
the product may have one, two, or three compartments of different 
standardized temperatures. Also, DOE proposes to restructure section 
3.2.1 for better clarity.
    DOE requests comment on these proposed procedures for setting 
temperature controls, conducting tests, and calculating product energy 
consumption.

K. Ice Maker Test Procedure Amendments

    In developing a means to reliably test the energy usage of ice 
makers, DOE is considering adding new provisions to its testing 
regulations. These provisions, which would be located in 10 CFR 430.23 
and a new Appendix BB, would detail the testing, measuring, and 
calculation of energy usage of these products. DOE would also add a 
definition to describe the scope of those products that would be 
treated as ice makers. Additional detail regarding these provisions 
follows.
1. Establishment of New Paragraph 10 CFR 430.23(dd) and New Appendix BB 
for Ice Makers
    DOE believes that testing ice makers would require a substantially 
different procedure from the approach proposed for refrigerator-
freezers and freezers, products that DOE already regulates. In light of 
these differences, DOE proposes to add a new paragraph (dd) to 10 CFR 
430.23 and a new Appendix BB to

[[Page 74916]]

contain the test procedures for ice makers. The new paragraph (dd) 
would explain how to calculate the annual energy consumption for ice 
makers, which would involve multiplying the daily average energy 
consumption by the number of days in a year (365). The new Appendix BB 
would describe how to measure ice maker energy use.
2. Definitions for Ice Makers
    DOE proposes to add several new definitions to clarify components 
or characteristics of ice makers, as described below. Some of the 
definitions would be added to 10 CFR 430.2 while others would be added 
to a new section 1 within the new Appendix BB.
    The definitions being proposed for 10 CFR 430.2 would distinguish 
among the different types of ice makers that DOE is considering 
addressing in a separate effort to evaluate potential energy 
conservation standards for these products. First, DOE proposes to 
distinguish between ``batch-type'' and ``continuous-type'' ice makers. 
The proposed definitions for these two ice maker categories are 
identical to those used in DOE's ACIM test procedure and are commonly 
understood in the industry: In the context of consumer ice makers, 
``batch-type ice maker'' would mean an ice maker having alternate 
freezing and harvest periods, and ``continuous-type ice maker'' would 
mean an ice maker that continually freezes and harvests ice at the same 
time. Although most ice makers are batch-type, DOE is aware of at least 
one continuous-type product. (Continuous-Type Ice maker, No. 2) The 
operating characteristics of these products are sufficiently different 
to require different testing methods. Hence, distinguishing between the 
types is necessary in establishing the procedures that apply to a given 
model of ice maker.
    Furthermore, the energy use characteristics of these two types of 
ice makers may be different, which may justify establishing different 
product classes. DOE may establish different product classes of a given 
category of product if they have performance-related features that 
justify a higher or lower standard. (42 U.S.C. 6295(q)(1)(B)) If DOE 
decides to propose separate product classes for batch-type and 
continuous-type ice makers, further discussion and an opportunity for 
comment would be provided in the appropriate rulemaking proceeding.
    Second, DOE proposes to establish definitions to distinguish 
``cooled-storage'' and ``uncooled-storage'' ice makers. DOE proposes to 
define a ``cooled-storage ice maker'' as an ice maker that maintains 
ice storage bin temperatures below 32 [deg]F. A cooled-storage ice 
maker would be distinct from an ``uncooled-storage ice maker,'' which 
DOE proposes to define as an ice maker that does not maintain ice 
storage bin temperatures below 32 [deg]F between periods of ice 
production. Such units often, but not always, have a drain connection 
to remove the melt water that collects in the bin.
    Although the terms ``cooled-storage ice maker'' and ``uncooled-
storage ice maker'' are not widely used in industry, DOE proposes to 
use them to distinguish between these two types of ice makers because 
they have different operating characteristics requiring unique test 
procedures. For example, cooled-storage ice makers consume energy after 
filling their ice storage bins with ice by operating their 
refrigeration systems to cool their ice storage bins and prevent the 
melting of ice. Consequently, cooled-storage ice makers only need to 
replace the ice removed by the user.
    In contrast, uncooled-storage ice makers do not operate their 
refrigeration systems after filling their ice storage bins and may 
consume very little energy when they are not actively producing ice. 
However, because the ice in the bin melts, uncooled-storage ice makers 
need to replace the ice that melts in the uncooled ice storage bin in 
addition to replacing the ice that is removed by the user. Although the 
proposed test procedure has very similar provisions for measuring 
icemaking energy use for both of these types of ice makers, the 
proposal has different provisions for measuring the energy associated 
with ice storage. For cooled-storage ice makers, ice storage energy use 
comprises the energy required to maintain the ice storage bin at its 
below-freezing temperature, whereas for uncooled-storage ice makers, it 
comprises the energy required to replace melted ice. The differences 
between these products may extend to specific features, such as the 
production of different types of ice, and others that may affect energy 
usage, which may help justify the creation of separate product classes. 
Consequently, in DOE's view, the proposed definitions should help 
address these different operating characteristics and the potential 
that these products may constitute different product classes.
    Finally, DOE proposes to define the term ``portable ice maker'' as 
an ice maker that does not require connection to a water supply and 
instead has one or more reservoirs that would be manually supplied with 
water. This style of ice maker is also generally small (Portable Ice 
Maker, No. 8); hence, both the lack of a fixed water connection and the 
small size of these units contribute to their portability. Not using a 
water supply represents a difference in operation of portable ice 
makers that requires differences in the test procedure as compared with 
procedures with water inlet connections. In addition, as described in 
section III.K.9, DOE proposes to apply an adjustment factor of 0.5 for 
portable ice makers to account for the likelihood that they would not 
be energized throughout the year, due to their portability.
    DOE requests comments on the proposed definitions delineating 
different types of ice makers. DOE also seeks comment on whether there 
exists common industry terminology that would be more suitable for 
distinguishing cooled-storage and uncooled-storage ice makers.
    DOE is also proposing to include a number of definitions as part of 
a new Appendix BB that would relate to icemaking and be used to 
describe the icemaking operation and the test procedures necessary to 
measure icemaking energy use. In particular, DOE is proposing to define 
the terms ``harvest,'' ``harvest rate,'' ``ice hardness factor,'' ``ice 
storage bin,'' ``icemaking cycle,'' and ``replacement cycle.'' Some of 
these definitions exist in similar forms in the test procedures for 
refrigerators and refrigerator-freezers, or in the test procedures for 
ACIM. With the exception of the proposed definition for ``replacement 
cycle,'' which DOE included to clarify the duration of the ice storage 
test period for uncooled-storage ice makers, these proposed definitions 
are all commonly understood in the industry. The proposed definitions 
for ``harvest rate'' and ``ice hardness factor'' are identical to those 
used in DOE's ACIM test procedure.
    DOE requests comment on these proposed definitions.
3. Energy Use Metric for Ice Makers
    DOE's regulations do not currently incorporate a test procedure for 
consumer ice makers. While DOE is aware that manufacturers are using 
the current ACIM test procedure (see 10 CFR part 431, subpart H) to 
represent the energy use of consumer ice makers, DOE is unaware of any 
procedure that has been specifically developed for these ice makers. 
DOE's research indicates that there is very little reporting of energy 
use information for consumer ice makers.
    In developing the test procedures for ice makers, DOE considered 
its approach for ACIM (see 10 CFR

[[Page 74917]]

431.134) and the proposed approach for consumer refrigeration products 
with ice makers. 78 FR 41609 (July 10, 2013). The DOE test procedure 
for ACIM incorporates by reference the test procedures of AHRI Standard 
810-2007 with Addendum 1, Performance Rating of Automatic Commercial 
Ice-Makers, March 2011 (``AHRI 810''), as well as ANSI/ASHRAE Standard 
29-2009, Method of Testing Automatic Ice Makers, (including Errata 
Sheets issued April 8, 2010 and April 21, 2010), approved January 28, 
2009 (``ANSI/ASHRAE 29-2009''). The energy use of an ACIM is reported 
in kilowatt-hours per 100 pounds of ice. This metric represents the 
efficiency of ice production when operating in a 90 [deg]F ambient 
temperature room with 70 [deg]F inlet water temperature. The metric 
does not account for standby energy use between icemaking periods or 
the energy use associated with replenishing the ice that melts in the 
storage bin.
    Similarly, DOE's previously proposed approach for measuring 
icemaking energy use in refrigerators, refrigerator-freezers, and 
freezers, which DOE is continuing to consider (see 78 FR 41610 (July 
10, 2013)) is based on a procedure developed by AHAM. (Test Procedures 
for Refrigerators, Refrigerator-Freezers, and Freezers, Docket No. 
EERE-2012-BT-TP-0016, No. 5). The energy conservation standards for 
these products are based on an energy use metric in units of kilowatt-
hours per year (kWh/year). See, e.g., 10 CFR 430.32(a). The proposed 
procedures would, if eventually adopted, measure the energy use 
associated with icemaking in these products by determining the energy 
required by the product to produce each pound of ice and multiplying 
that energy consumption by an average daily ice production rate. See 78 
FR at 41628 (discussing in detail DOE's 2013 proposal for calculating 
the energy use attributable to the icemaking process in consumer 
refrigerator-freezers). This daily energy consumption, which would 
include icemaking energy use, would then be multiplied by 365 to yield 
the energy use in kilowatt-hours per year, which is consistent with the 
manner in which the annual energy usage must be calculated for 
refrigeration products. See, e.g., 10 CFR 430.23(a)(5). The ice 
produced in these products is stored in an ice storage bin located in 
the freezer compartment or in an icemaking compartment within the fresh 
food compartment that is maintained at sub-freezing temperatures. The 
energy required by the product's refrigeration system to maintain these 
sub-freezing temperatures in the ice storage bin is already accounted 
for in the existing test procedure, which measures the energy use of 
these products while maintaining their compartment temperatures at the 
appropriate standardized temperatures (e.g., temperatures that are less 
than 32 [deg]F in the freezer compartment).
    While ice makers, unlike the refrigeration products noted 
immediately above, do not necessarily maintain cold compartment 
temperatures, they do store ice. In these cases, the ice is not stored 
in a separate compartment; rather, the ice is stored in the open 
interior of the product, i.e., within the ice bin itself, as opposed to 
having a separate storage compartment. ACIMs operate in a similar 
manner--while an ACIM ``may include [a] means for storing ice'' (see 10 
CFR 431.132), many ACIM models do not include separate ice storage 
bins. The energy use metric for ACIMs, kilowatt-hours per 100 pounds of 
ice, does not include the energy use required to store ice or to 
replenish ice that melts.
    Today's proposal considers whether the energy use metric for ice 
makers should include the energy use associated with ice storage and/or 
replenishment of melted ice. As part of this effort, DOE conducted 
testing to observe the energy use characteristics of ice makers and to 
measure energy use, both for ice production and for ice storage. The 
tests and energy consumption calculations were based on today's 
proposed test procedure, which calls for testing in 72[emsp14][deg]F 
ambient temperature conditions (see section III.K.5). Table III-6 
presents the test results for four ice makers. The table displays the 
annual energy consumption attributable to both ice production and ice 
storage for both a low and a high daily ice consumption rate estimate. 
The low production estimate is equal to the average daily ice 
production proposed for the icemaking test for refrigerators, 
refrigerator-freezers, and freezers, while the high production rate 
estimate would represent an extreme daily average production rate 
scenario, because it exceeds the harvest capacity of some of the tested 
ice makers. The test data show that the energy use associated with ice 
storage is a significant portion of the energy use of these products. 
Hence, DOE's proposed test procedure would measure this portion of the 
energy consumption and include it in the proposed energy use metric.

                                                           Table III-6--Ice Maker Test Results
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                       Annual energy consumption  (kWh/year)
                                             Icemaking   -----------------------------------------------------------------------------------------------
                                              energy              1.8 lb/day Ice consumption rate                 20 lb/day Ice consumption rate
  Ice maker No.         Storage type        consumption  -----------------------------------------------------------------------------------------------
                                             (kWh/lb)           Ice                                             Ice
                                                            production     Ice  storage     %  storage      production     Ice  storage     %  storage
--------------------------------------------------------------------------------------------------------------------------------------------------------
1................  Uncooled.............            0.15             101             495              83           1,121             102               8
2................  Uncooled.............            0.14              90             925              91           1,003             508              34
3*...............  Uncooled.............           0.073              24              38              61             268              16               5
4*...............  Uncooled.............            0.17              56             144              72             624              40               6
5**..............  Cooled...............            0.21             141             120              46           1,562             N/A             N/A
6**..............  Cooled...............            0.29             188             182              49           2,084             N/A             N/A
--------------------------------------------------------------------------------------------------------------------------------------------------------
* Portable ice maker.
** Measured harvest rate is less than 20 lb/day.

    DOE requests comment on this proposed energy use metric and whether 
it would sufficiently capture the total energy consumption of both 
cooled-storage and uncooled-storage ice makers.
4. Daily Ice Consumption Rate
    DOE proposes to use a value of 4 pounds per day as the daily ice 
consumption rate for calculating the

[[Page 74918]]

annual energy consumption of ice makers. In a separate rulemaking, DOE 
had previously proposed to apply an ice consumption rate of 1.8 pounds 
per day for measuring the energy use associated with icemaking in 
consumer refrigerators, refrigerator-freezers, and freezers. 78 FR at 
41628. In response to the proposed test procedure for refrigerators, 
refrigerator-freezers, and freezers, AHAM commented that based on a 
Northwest Energy Efficiency Alliance (NEAA) field study and member data 
on ice production rates for products in the NEAA field study, the 
average ice consumption rate would be 0.76 pounds per day. (Test 
Procedures for Refrigerators, Refrigerator-freezers, and Freezers; 
Docket No. EERE-2012-BT-TP-0016; AHAM, No. 41 at p. 2) DOE notes that 
ice makers within consumer refrigerator-freezers or freezers are a 
feature of that particular product type, while ice makers are a product 
specifically designed to produce ice. Accordingly, the daily ice 
consumption likely varies between these ice makers. DOE lacks data on 
the difference in daily ice consumption between ice makers and ice 
makers within refrigerator-freezers and freezers; however, DOE assumes 
that consumers who choose to purchase a dedicated ice maker will 
consume, on average, more ice than consumers who rely on their 
refrigerator-freezers or freezers to supply ice. Given the lack of 
usage data for ice makers, DOE selected 4 pounds per day as a 
reasonable daily ice consumption rate that is substantially higher than 
both the 1.8 pounds per day and 0.76 pounds per day referenced for ice 
makers in refrigerator-freezers and freezers.
    Moreover, dedicated ice makers are typically capable of producing 
much more ice per day than the automatic icemakers used in 
refrigerator-freezers and freezers, with some ice makers having claimed 
harvest rates ranging from 10 to 70 pounds per day. DOE recognizes that 
these rates may have been measured under different testing conditions 
than those being proposed in today's notice.\10\ In the absence of 
comprehensive and reliable field data that would suggest a particular 
national-average daily ice consumption rate, DOE is assuming that these 
products will, for the reasons noted immediately above, have an ice 
production rate roughly double that which DOE previously considered for 
the automatic icemakers of refrigerator-freezers and freezers.
---------------------------------------------------------------------------

    \10\ Daily Harvest Rates for Representative Residential Ice 
Makers, No. 4.
---------------------------------------------------------------------------

    DOE requests comment on this proposed daily ice consumption rate. 
DOE also seeks access to field or survey data that indicate whether 
this value is representative of actual ice consumption for ice makers. 
Because the harvest rates of ice makers vary widely, DOE recognizes the 
limitations of using a 4 pound per day estimate for all ice makers. 
Therefore, DOE requests comment on whether the daily ice consumption 
rate used in the test procedure should vary based on harvest rate, and 
if so, how the rate should vary.
5. Test Conditions and Set-Up
    Because of the similarities between ice makers and other consumer 
refrigeration products, DOE proposes to require that ice makers be 
tested using many of the same test conditions as are required for 
refrigeration products such as refrigerators, refrigerator-freezers, 
and freezers. Specifically, DOE proposes to require that ice makers 
meet the same set-up requirements and operating conditions (excluding 
those requirements that are not applicable to ice makers), clearance 
distances, steady-state conditions as applicable, and icemaking cycle 
indication provisions. DOE expects that using the same set-up and test 
conditions will help ensure testing consistency for ice makers while 
minimizing manufacturer burden.
    DOE initially considered proposing that ice makers be tested in an 
ambient temperature condition of 90 <plus-minus> 1 [deg]F, which is 
considerably warmer than the average ambient temperature that these 
products would likely face in consumers' homes. The 90 [deg]F ambient 
temperature is used for many refrigeration products because the test 
procedure requires testing with the doors closed and the elevated 
temperature simulates thermal loads associated with door openings and 
other loads, such as cooling down warm food. However, ice makers would 
likely experience much less frequent door openings than refrigerators 
or refrigerator-freezers since an ice maker's door would be expected to 
be opened primarily when retrieving ice for use in cool drinks, while 
refrigerator and refrigerator-freezer doors would be accessed when 
retrieving or preparing any food that requires refrigeration or is 
cooled before consumption. In addition, the load associated with the 
freezing and cool down of ice would be measured directly in the ice 
maker test procedure, while the load associated with cool-down of foods 
inserted into a refrigerator or refrigerator-freezer is not directly 
measured in the test procedure for these products, suggesting that 
using an elevated temperature to simulate these loads is inappropriate 
when testing ice makers. Consequently, DOE's proposal would require 
that ice makers be tested in a 72 [deg]F ambient temperature condition. 
See also section III.G.1.
    DOE requests comment on its proposal to require testing of ice 
makers in a 72 [deg]F ambient temperature condition and its proposal to 
apply all of the set-up requirements that are currently required for 
refrigerators, refrigerator-freezers, and freezers to ice makers. DOE 
also seeks comment on its assumption that ice makers are not opened as 
frequently as other refrigeration products along with its estimated ice 
production rate for ice makers.
    For ice makers that are not portable (i.e., units that use water 
provided by a water supply line), DOE proposes to require that the 
inlet water temperature be the same as the 72 [deg]F ambient 
temperature condition required for the test, but with a modified 
tolerance requirement of <plus-minus> 2 [deg]F. DOE has proposed a 
similar approach for measuring the energy use associated with icemaking 
in refrigerator-freezers and freezers. See 78 FR at 41621 (proposing 
that testing be conducted with water inlet temperature of 90 <plus-
minus> 2 [deg]F). DOE offered this approach as a means to minimize the 
potential complications associated with maintaining water temperature 
at a level other than the ambient temperature in the supply water lines 
when water is not flowing. DOE also proposes to require the same inlet 
water pressure as proposed for testing of automatic icemakers in 
refrigerators, refrigerator-freezers, and freezers, 60 <plus-minus> 15 
psig. Id. DOE also proposes to clarify that the pressure range would 
apply while the water is flowing.
    DOE considered whether to propose the same 72 <plus-minus> 2 [deg]F 
water supply temperature requirement for portable ice makers. However, 
during testing of a portable ice maker, DOE determined that the water 
in the reservoir reached a steady-state temperature of approximately 45 
[deg]F after several hours. Therefore, to reduce the time required 
during testing to reach a steady-state, DOE proposes that the water 
used to fill the reservoir of portable ice makers be 55 <plus-minus> 2 
[deg]F.
    DOE requests comment on whether its proposed water temperature and 
pressure conditions for portable and non-portable ice makers are 
appropriate.
    The DOE proposal for ice makers would use many of the same 
requirements as those used for other consumer refrigeration products. 
Many of these requirements are from HRF-1-2008 and are incorporated by 
reference into DOE's regulations. See Appendix A, section 2.2. This 
group of requirements addresses the test room,

[[Page 74919]]

the placement of the unit under test within the test room, the electric 
power supply, measurement instrumentation, sensor placement for 
measuring ambient air temperatures, and product set-up conditions. Many 
of these requirements would also apply when testing ice makers. Hence, 
DOE's proposed test procedures for Appendix BB would incorporate by 
reference many of the same provisions as Appendix A.
    To ensure that consumer refrigeration products are set up for 
testing in a manner consistent with their normal use set-up, DOE's 
Appendix A requires that set-up be in accordance with the printed 
consumer instructions supplied with the cabinet. However, the test 
procedure permits certain exceptions designed to ensure test 
consistency for set-up parameters that could affect test results, but 
allow for set-up flexibility for those parameters that do not affect 
energy test results. See Appendix A, section 2.6. DOE proposes to use 
the same set-up approach for ice makers, with some adjustments to the 
exceptions. Specifically, the proposed ice maker test procedure would 
not include the exceptions that (a) waive the need for the installation 
of water lines and water filters, (b) highlight specific requirements 
for setting the temperatures of convertible or special compartments, 
and (c) require ice bins to be emptied of ice.
    DOE's proposal includes instructions for setting temperature 
controls for ice makers. These requirements would apply primarily to 
cooled-storage ice makers. While DOE found from its research that not 
all cooled-storage ice makers have user-operable temperature controls, 
the proposal addresses how to test products equipped with such 
controls. The proposal would require these types of controls to be set 
at the median setting during testing, for both the ice production and 
ice storage parts of the test. This proposed requirement would differ 
from the current requirements for refrigerators, refrigerator-freezers, 
and freezers. These provisions require multiple tests and the results 
are used to calculate energy use based on standardized compartment 
temperatures. Such an approach is unnecessary for ice makers because 
they are not designed to maintain storage space within compartments at 
specific temperatures.
    Furthermore, the detailed requirements that DOE proposed earlier 
for measuring icemaking energy use in refrigerator-freezers are 
unnecessary when testing ice makers. This is because, for refrigerator-
freezers and freezers, any ``drift'' in compartment temperature 
associated with the initiation of icemaking can change the energy use 
associated with maintaining the compartment temperatures. To control 
this drift, temperature readjustment is necessary to help minimize the 
change in compartment-related energy use. See 78 FR at 41623. Ice 
makers do not consume energy to maintain compartment temperatures 
because they have no separate internal spaces apart from the ice 
storage bin that could be considered a ``compartment'' for the purposes 
of the test. Accordingly, DOE is not proposing similar requirements in 
the test procedure for ice makers.
    On the other hand, some features of ice makers raise set-up 
concerns that do not arise for refrigerators, refrigerator-freezers, or 
freezers (e.g., ice piece size control, drain lines, and elevated-drain 
auxiliary pumps). The proposed procedure would account for these 
concerns.
    DOE is not aware of user-accessible ice piece size control for any 
automatic icemakers used in refrigerator-freezers or freezers. While 
DOE is similarly unaware of such controls in ice makers, DOE expects 
that such a control feature would be more likely to be offered in an 
ice maker, since the main function of these products is the production 
of ice. In addition, the impact of varying ice piece size in an ice 
maker that has such a control feature would be expected to affect the 
energy use measurement much more for these products, since most of the 
energy use of refrigerator-freezers and freezers is associated with 
maintaining cold individual compartment temperatures. DOE proposes that 
any user-accessible control allowing ice piece size adjustment to be 
set for the largest ice piece size when testing ice makers. This 
approach would be consistent with maximizing ice production rate, one 
of the key sales features of ice makers that distinguish them, for 
example, from the icemaking capabilities of conventional refrigerator-
freezers.
    As mentioned above, many uncooled-storage ice makers have drain 
connections to remove water that remains from the ice production 
process or that collects at the bottom of the ice storage bin. To 
ensure that this water freely flows out of the ice maker, DOE proposes 
to require that any tubing used to convey such water away from the unit 
under test to a test lab floor drain be as specified in the consumer 
instructions supplied with the cabinet, and that, unless otherwise 
specified by the instructions, the drain lines must be installed 
running downwards from the ice maker's drain outlet. DOE is aware that 
ice maker manufacturers offer optional pumps that can pump the drain 
water to a higher location, which is useful in those cases where the 
drain piping in the house is at a higher elevation than the ice maker's 
drain outlet. DOE's proposal does not permit the use of such optional 
pumps in the test.
    Further, DOE is aware that some ice makers have on-board pumps 
integrated within the products' cabinets that can be used for this 
purpose if necessary. DOE's proposal would also allow these integrated 
pumps to be shut off or disconnected for the test, if the consumer 
instructions supplied with the cabinet indicate that such pumps can be 
switched off or disconnected when they are not needed for lifting the 
drain water to a higher location. If the integrated pump cannot be 
turned off by the consumer during typical operation, the pump would be 
operational during the test and its energy consumption would be 
included during testing.
    DOE is proposing a data collection frequency interval for 
temperature, power, and energy measurements to be not less than once 
per minute. The current DOE test procedures in Appendices A and B allow 
a recording interval of up to four minutes. Because the icemaking test 
involves multiple recurring events (i.e., icemaker cycles and 
compressor cycles) that are not synchronized, a shorter recording 
interval would improve the accuracy of the measurements. Additionally, 
updating the requirements to reflect the increased accuracy of the 
equipment routinely employed by test facilities would ensure that the 
procedure adequately accounts for the improved technology already used 
in the field. DOE believes that the test burden associated with this 
requirement, if any, would be insignificant because most, if not all, 
test facilities already use one-minute recording intervals during 
testing.
    DOE's proposed batch-type ice maker procedure would measure the 
energy use for test periods that comprise complete icemaking cycles. 
This concept is consistent with both the established ACIM test 
procedure and the test procedure DOE proposed for measuring icemaking 
energy use in refrigerator-freezers and freezers. The concept is also 
based on a correlation between the energy used to produce ice during 
each cycle, which is used to accurately calculate the energy use per 
mass of produced ice.
    For most ice makers, identifying icemaking cycles from recorded 
data (e.g., power input and temperatures) is straightforward, since the 
compressor power measured for an uncooled-storage

[[Page 74920]]

ice maker will change suddenly in the transition from the harvest cycle 
to the freeze cycle, or the mold heater of a cooled-storage ice maker 
will be energized to free the ice from the icemaking mold. However, 
identifying the icemaking cycles for some ice makers may be difficult 
because the power required to energize the mold heater (or other ice 
release mechanism) may be negligible compared to the overall power draw 
of the unit, and/or the compressor power may not change significantly 
during harvest. To address this situation for the icemaking test 
procedure for refrigerator-freezers and freezers, DOE proposed three 
alternative methods that would allow one to readily identify the start 
and end of icemaking cycles. See 78 FR at 41622 (describing in detail 
the alternative methods proposed by DOE). DOE's proposal for ice makers 
would follow this same approach to identifying icemaking cycles.
    Additionally, DOE's proposal would require manufacturers to measure 
the energy used for icemaking and ice storage. Measuring the energy use 
of the ice storage function for cooled-storage ice makers requires 
measuring how much energy is used to maintain the ice maker's storage 
bin at a steady state ice storage temperature. A test would be needed 
to confirm that the unit is operating in a steady state before such a 
measurement is made. For refrigerators, refrigerator-freezers, and 
freezers, steady state is determined based on compartment 
temperatures--i.e., once the rate of temperature change within a 
compartment is less than 0.042 [deg]F per hour. See Appendix A, section 
2.9. DOE proposes to use a similar temperature-based method for ice 
makers to confirm that uncooled-storage ice makers have reached steady 
state. However, as mentioned above, ice makers do not have compartments 
to provide refrigerated storage space. Hence, the evaluation of 
stability would not be based on an evaluation of compartment 
temperature, as it is for other refrigeration products, but rather, a 
less complex measurement of the interior temperature of the ice maker.
    DOE also notes that because its proposed approach for ice makers 
would not be based on the maintenance of particular storage 
temperatures (i.e., standardized temperatures), in DOE's tentative 
view, for the purpose of evaluating stability, temperature sensor 
locations are not as critical for ice makers as they are for the 
compartments of other consumer refrigeration products (e.g., 
refrigerator-freezers). As a result, today's proposal would require 
manufacturers to evaluate steady-state conditions on the basis of a 
single temperature sensor located one inch above the maximum ice level 
of the ice storage bin as close to the center of the bin as possible 
but in a location that would not interfere with the operation of the 
ice maker, such as when ice falls into the bin during harvest. In 
addition, because the space available in this location of the ice maker 
may be limited, DOE's proposal does not require use of weighted 
temperature sensors, for example, as described in HRF-1-2008 section 
5.5.4. However, the proposal would require a measurement accuracy of at 
least <plus-minus> 0.5 [deg]F for these sensors. DOE also proposes to 
apply the same steady state criterion already used for refrigerators, 
refrigerator-freezers, and freezers to the single measured temperature 
to confirm that a steady state condition has been achieved for the ice 
storage test for cooled-storage ice makers.
    DOE requests comment on all of its proposals for test conditions 
and for set-up of ice makers for testing. DOE also requests comment on 
its proposals related to the treatment of ice maker drain lines and 
drain pumps, along with information regarding the power consumption of 
such pumps.
6. Icemaking Test
    To measure icemaking energy use, DOE proposes to require a test 
similar to its ACIM test procedure, which involves measuring ice and 
monitoring energy use once per icemaking cycle for three consecutive 
icemaking cycles to determine the energy use per 100 pounds of produced 
ice. However, rather than requiring the collecting and weighing of ice 
after every icemaking cycle, DOE's proposal for batch-type ice makers 
would measure icemaking energy use for a whole, but unspecified, number 
of icemaking cycles over at least 6 hours, unless the bin fills first. 
For continuous-type ice makers with no icemaking cycles, DOE's proposal 
would measure energy use over 6 hours, unless the bin fills first. DOE 
proposes to use the same approach to minimize any thermal losses from 
door openings in order to mitigate their potential impacts on the 
measured energy use. The thermal loss associated with ice collection 
would have a much greater impact on energy use measurement for an ice 
maker than for a typical ACIM because ice collection for an ice maker 
requires opening the door and exposing much more of the cooled surfaces 
of the interior to warm test room air. Many ACIM models drop the 
produced ice through a hole in the bottom of the ACIM assembly at the 
end of each icemaking cycle, which reduces the thermal exposure 
associated with ice collection. In addition, the harvest capacity of 
most ice makers is much lower than that of ACIMs, so any amount of 
thermal loss would have a greater impact on the energy use measurement. 
Reducing this thermal loss by requiring ice collection only once would 
reduce the test uncertainty that would be associated with a once-per-
cycle collection of ice.
    DOE notes that for batch-type ACIMs, the ACIM test procedure 
requires icemaking stabilization to occur prior to taking measurements. 
This stabilization is achieved when the difference in the weight of 
harvested ice for two consecutive icemaking cycles does not exceed 2 
percent. See ANSI/ASHRAE 29-2009, section 7.1.1. DOE proposes to 
require a stabilization period for the ice maker test procedure as 
well, but stabilization would be achieved after two hours of icemaking 
operation rather than confirmed based on batch weight. This method 
would avoid the potential thermal loading associated with door openings 
that is likely to occur if DOE were to adopt the ice production-based 
approach followed by the ACIM-based procedure. DOE observed during ice 
maker testing that the temperatures and power consumption of these 
products reach steady-state within these times. (Ice maker 
Stabilization Data, No. 6)
    DOE requests comment on the proposed two-hour stabilization period 
for both batch-type and continuous-type ice makers.
    Also, similar to the procedure for ACIM, DOE proposes to require 
that a perforated container be placed in the ice storage bin to collect 
the ice that will be weighed at the end of the test period. DOE 
proposes to require that the container used to catch the harvested ice 
shall be perforated such that the ice of the unit under test cannot 
fall through the container's holes and the water hold-up weight is no 
more than 1.0 percent of the weight of the smallest batch of ice for 
which the container is used. DOE expects that some portion of the ice 
collected during a test of an uncooled-storage ice maker may melt 
before the container is removed for weighing of the ice. The water that 
melts off the ice in a consumer's home would drop to the bottom of the 
ice storage bin and would not be available for use as ice. In order to 
maintain consistency with field use, DOE proposes that melted ice 
should not be included in the ice mass measurement at the end of the 
test period--hence, the proposed use of a perforated container. 
However, DOE is aware that surface tension may prevent melt water from 
passing through the holes in the

[[Page 74921]]

container. To address this possibility, DOE proposes that the 
perforated container may not ``hold'' water representing more than 1.0 
percent of any ice mass measurement made during testing. To help with 
this measurement, DOE is including a procedure to determine the water 
hold-up weight of the container that involves immersing the container 
in water, letting it drain, and measuring the weight of the remaining 
water that does not drain.
    DOE also proposes to require using a perforated container for 
continuous-type ice makers. This is in contrast to the test procedure 
for continuous-type ACIMs, which requires using a non-perforated 
container to capture ice. See ANSI-ASHRAE 29-2009, section 7.2.1, which 
is incorporated by reference in the DOE ACIM test procedure. As with 
batch-type ice, the water that melts off continuous-type ice and drains 
to the bottom of the bin prior to the retrieval of ice from the bin is 
not useful as ice. Hence, DOE proposes use of a perforated container 
for continuous-type ice makers as well as for batch-types.
    During its tests of ice makers, DOE noted one unit whose design 
severely limited the size of a perforated container that could be 
placed within its bin to collect harvested ice because the ice bin did 
not slide or tilt out. Consequently, a perforated container that could 
be placed in the bin was unable to fit all of the ice that was produced 
within the specified icemaking test period. For such units, in which it 
is impossible to place a perforated container large enough to capture 
all of the ice produced during the icemaking test period, DOE proposes 
to allow additional door openings during the test period for ice 
retrieval and measurement. The collected ice would be placed into the 
ice storage bin of the unit under test, underneath the perforated 
container. The proposal would also allow (in the case of batch-type ice 
makers) the perforated container to be sized so that it can capture the 
ice associated with no less than five icemaking cycles. The ice 
produced during the test period would be retrieved and weighed multiple 
times during the test period, but no more frequently than once every 
five icemaking cycles. For continuous-type ice makers, the proposal 
would allow the perforated container to be sized so that it can capture 
the ice associated with no less than an hour of ice production. The ice 
produced during the test would be retrieved and weighed multiple times 
during the test period, but no more frequently than once per hour.
    DOE proposes to apply weighing requirements identical to those used 
for ACIMs, i.e., using a scale for weighing ice with an accuracy and 
precision within 1 percent of the measured ice weight. See ANSI-ASHRAE 
29-2009, section 5.51.
    For measuring the energy use of batch-type ice makers, DOE proposes 
using a test period that would begin with the start of the first 
icemaking cycle occurring after the two-hour stabilization period. The 
perforated container would be placed into the ice bin after the last 
batch of ice harvested prior to the start of the test period drops into 
the bin, and the bin would not be emptied of ice before inserting the 
container. The test period would consist of a whole number of icemaking 
cycles and be at least six hours in duration, or until the ice storage 
bin fills and ice production stops automatically. The ice container 
would be retrieved for weighing of the ice within two minutes of the 
time that the last batch of ice produced during the test period falls 
into the bin.
    For continuous-type ice makers, the test procedure would also 
require a two-hour stabilization period, and the test period duration 
would last either six hours or until icemaking is automatically 
stopped--whichever comes first. The container for collecting the ice 
would be retrieved for weighing of the ice either at the end of the six 
hours or within two minutes of the termination of icemaking.
    To limit thermal loss associated with the door opening, the 
proposal would require that the elapsed time during which the ice maker 
door is open when placing or retrieving the container must not exceed 
15 seconds. DOE anticipates that this is a reasonable amount of time to 
retrieve or place the container without creating a substantial thermal 
loss.
    DOE proposes to require the rapid retrieval of the ice for weighing 
after the end of the test period to ensure that the ice weight does not 
decrease significantly after the test period due to melting that would 
occur in uncooled-storage ice makers. However, DOE recognizes that the 
test would require close monitoring to make sure that the two minutes 
are not exceeded. DOE requests comment on the two-minute requirement 
and suggestions of alternative ice collection delay limits.
    DOE also requests comment on other aspects of the proposed test 
procedure, including use of a perforated container and the container 
specifications, requirements for the scale used to measure the ice 
weight, the requirement to leave the ice produced during the 
stabilization period in the ice storage bin, the six-hour test period, 
or any other aspect of the proposed test.
    DOE notes that the measurements that would be made under the 
proposed icemaking test would include the energy consumed during the 
test period and the mass of ice produced during the test period. This 
energy use would be divided by the ice mass to determine the energy 
consumption per pound of ice produced. The estimated daily energy use 
in kilowatt-hours associated with ice production would then be 
calculated as the daily average production rate multiplied by the 
calculated energy use per pound of ice. This is discussed in further 
detail in section III.K.9.
7. Ice Storage Test
    For both cooled-storage and uncooled-storage ice makers, DOE 
proposes to require that the ice storage test be conducted when the ice 
maker enters ice storage mode to maintain cool ice storage conditions 
or when replenishing the ice supply to replace melted ice. In these 
cases, the ice storage bin would be full of ice during this part of the 
test. During testing, however, an ice maker may not have completely 
filled its bin during the test period specified for the icemaking test. 
If this occurs, icemaking may have to continue after completion of the 
icemaking test in preparation for the ice storage test. The proposal 
would allow the ice that would have been collected at the end of the 
icemaking test period to be placed back into the bin after being 
weighed. However, the proposal would prohibit the use of ice from a 
different source to accelerate the filling of the bin. This 
precautionary step would ensure that the ice storage test results would 
not be affected by any potential subcooling (i.e., temperature below 32 
[deg]F) or different melt characteristics associated with the size or 
shape of ice from a different source.
    The proposal would also use a stabilization period for cooled-
storage ice makers after the initial filling of the ice storage bin 
automatically terminates ice production. DOE proposes that completion 
of this stabilization period be defined based on the stabilization 
criteria used for the testing of refrigerators, refrigerator-freezers, 
or freezers, as described, for example, in Appendix A, section 2.9. 
This proposal, and the requirements for the temperature sensor used to 
confirm stabilization, are described in section III.K.5. DOE is not 
proposing to require a stabilization period for uncooled-storage ice 
makers because of the lengthiness of the proposed ice storage test 
period described below.

[[Page 74922]]

    The proposed ice storage measurement test periods would also be 
different for cooled-storage and uncooled-storage ice makers because of 
the different operation of these two ice maker types. For cooled-
storage ice makers, DOE proposes to specify a test period as required 
for refrigerators, refrigerator-freezers, or freezers with manual 
defrost, i.e., the test period would comprise at least two whole 
compressor cycles and be of a duration not less than 3 hours. See 
Appendix A, section 4.1.
    For uncooled-storage ice makers, DOE proposes a test period 
duration of at least 48 hours that would start at the end of ice 
production and end once the following replacement cycle stops. During 
testing of uncooled-storage ice makers, DOE observed that the periods 
of ice production initiated to replace melted ice did not always occur 
at regular intervals, nor did they consistently last the same amount of 
time. The change in the average energy use measured for the entire ice 
storage period, evaluated after each replacement cycle, continued to 
represent a significant portion of ice maker total energy use for a 
long period of time. Test data show that a test period as long as 48 
hours is generally required to limit this variation to roughly one 
percent of total ice maker energy use. (``Ice Storage Test Period 
Stabilization'', No. 7) DOE proposes using a test period of at least 48 
hours to reduce the potential variability associated with the ice 
storage test for uncooled storage ice makers.
    DOE requests comment on its proposed methodology for measuring ice 
storage energy consumption for both cooled-storage and uncooled-storage 
ice makers. In particular, it requests comment on whether its proposed 
duration for the uncooled-storage test period is sufficiently long to 
reduce the variability in test results that might be caused by the 
inconsistent intervals between ice production and idle periods when the 
ice maker is operating only to replenish melted ice. DOE is also 
interested in whether a shorter duration would be viable. In either 
case, DOE is interested in any supporting data suggesting a different 
duration than the one proposed or data supporting the proposed 
duration.
8. Ice Hardness for Continuous-Type Ice Makers
    DOE is aware of at least one continuous-type ice maker on the 
market: a nugget ice maker, which compresses the continuously formed 
ice to produce uniformly-sized cylindrical pieces. ANSI/ASHRAE 29-2009, 
``Method of Testing Automatic Ice Makers,'' Annex A, ``Method of 
Calorimetry,'' addresses the hardness of ice produced by continuous-
type ACIMs. Ice hardness, which represents the fraction of the 
delivered ice product which is frozen as opposed to liquid water, is 
defined as the percentage value or ratio obtained by dividing the 
measured latent heat capacity of the ice, expressed in British thermal 
units per pound (Btu/lb), by the value 144 Btu/lb, which is the latent 
heat capacity of water assuming all of the water freezes.
    DOE's ACIM test procedure adjusts the energy consumption 
calculations using the ice hardness. See 10 CFR 431.134(2)(i). This 
adjustment corrects the measured energy use per pound of ice so that it 
represents the energy use that would have been required to produce ice 
of 100 percent hardness. The adjustment ensures that a higher 
efficiency rating cannot be obtained simply by designing a continuous 
ice maker that produces lower-hardness ice. Similarly, the adjustment 
partially corrects for the typically greater energy use per pound of 
batch type ice makers (compared with continuous type) by eliminating 
the portion of the energy use rating difference associated with the 
reduced frozen water content found in ice produced by continuous-type 
ice makers. DOE proposes that an ice hardness factor be used in the 
same way to adjust the measurement of energy use per pound of ice for 
continuous-type ice makers to calculate an adjusted energy use per 
pound of ice produced. As described in section III.K.6, energy use per 
pound of ice would be multiplied by the daily average ice production to 
determine the daily average energy use for ice production.
    However, DOE recognizes that the ice hardness measurement procedure 
prescribed in Annex A: Method of Calorimetry in ASHRAE 29-2009 could 
incur a significant test burden. Therefore, DOE proposes to allow 
manufacturers the option of either using an ice hardness measurement 
determined using the ASHRAE 29-2009 procedure or a standard ice 
hardness factor of 0.85, which is a typical ice hardness value for 
nugget ice, the style of ice produced in the continuous-type ice maker 
mentioned above. This approach will reduce the test burden by avoiding 
the need for measuring ice hardness, while still providing 
manufacturers the option of using the ice hardness measurement if they 
desire to do so.
    DOE requests comment on its proposal to adjust the icemaking energy 
use for continuous-type ice makers to account for ice hardness under 
100 percent and its proposed approach to allow manufacturers to use 
either an ice hardness value measured using calorimetry or a standard 
ice hardness factor when calculating energy usage. DOE also requests 
comment on whether its proposed ice hardness factor of 0.85 is an 
appropriate value to represent the nugget ice expected to be produced 
by consumer continuous-type ice makers.
9. Energy Use Calculations
    As discussed in section III.K.3, DOE proposes to use an energy use 
metric for ice makers that includes energy use associated both with 
icemaking and with ice storage. Section III.K.4 discusses DOE's 
proposal to use an average daily ice production rate of 4 pounds to 
calculate the contribution to daily energy use associated with 
icemaking. DOE's proposal would involve calculating the energy use per 
ice mass by dividing the total energy use measured during the icemaking 
test period by the total mass of ice produced during the test period. 
Daily icemaking energy use would be calculated by multiplying the 
energy use per ice mass by the daily ice consumption rate of 4 pounds 
per day. For continuous-type ice makers, the energy use per ice mass 
would be adjusted by multiplying this value by the ice hardness 
adjustment factor, I<INF>HAF</INF>, which is equal to:
[GRAPHIC] [TIFF OMITTED] TP16DE14.004

    I<INF>H</INF> is the ice hardness factor, either a standard value 
of 0.85 or the measured value obtained using the procedure specified in 
Annex A of ASHRAE 29-2009. The ice hardness factor corrects the energy 
use per ice mass to account for the reduced refrigeration load 
associated with the production of ice such as nugget ice, which is not 
100 percent frozen water. The 40 Btu/lb in the above expression 
represents the cooling load required to reduce the temperature of a 
pound of the incoming water from its inlet temperature of 72 [deg]F to 
the ice temperature of 32 [deg]F.
    To calculate daily ice storage energy use, DOE is proposing that 
the average ice storage power consumption be multiplied by the amount 
of time per day that the ice maker is not producing the 4-pound average 
daily ice consumption. This approach avoids attributing ice storage 
energy use to ice makers during the time when they would be operating 
in active mode to produce the projected daily amount of 4-pounds of 
ice. This amount of time would be calculated based on the 4-

[[Page 74923]]

pound consumption and the measurements of ice mass and duration of the 
icemaking test period. The ice storage time would be equal to the 
number of minutes in a day, 1,440, minus the number of minutes required 
to produce 4 pounds of ice. This ice storage time would then be 
multiplied by the energy consumption measured during the ice storage 
test period and divided by the duration of that test period to provide 
the daily energy use associated with ice storage.
    The ice production and ice storage energy use contributions would 
be added to provide the daily average energy use. For portable ice 
makers, this sum would be further multiplied by a usage adjustment 
factor to account for the fact that portable ice makers are not 
energized and producing or storing ice at all times. DOE proposes 
applying a usage adjustment factor equal to 0.5 for portable ice 
makers. DOE has no data to indicate, on average, what portion of the 
year portable ice makers are energized--DOE has proposed use of 0.5 for 
this factor and requests comments and any information that might refine 
this estimate.
    DOE requests comment on its proposed method for calculating the 
daily energy consumption of ice makers. In addition, DOE requests 
comment on whether 0.5 is an appropriate annual usage adjustment factor 
for portable ice makers and seeks access to field or survey data that 
could help it develop a more representative assumption.

L. Incidental Changes To Test Procedure Language To Improve Clarity

    DOE proposes to change the description for calculating the energy 
use for products in the majority of cases where two tests are conducted 
using two different temperature control settings that bracket the 
compartments' standardized temperatures. Specifically, section 6.2.1.2 
of Appendix A currently refers to these two tests as two ``test 
periods.'' DOE proposes to change the language to refer to ``tests.'' 
DOE proposes similar changes in sections 6.2.1.1, 6.2.2.1, 6.2.3.1, and 
6.2.4.1 of Appendix A and in sections 6.2.1.1 and 6.2.1.2 of Appendix 
B. DOE requests comment on this proposal.
    DOE also proposes to amend the regulatory language associated with 
separate auxiliary compartments. Rather than discussing ``first'' fresh 
food or freezer compartments, DOE is proposing to use the term 
``primary'' fresh food or freezer compartments. DOE requests comment on 
this proposal.
    DOE proposes to modify its definition for variable defrost. Rather 
than indicating that ``the times between defrost should vary with 
different usage patterns and include a continuum of lengths of time 
between defrosts as inputs vary.'' DOE proposes to modify the language 
by replacing ``should'' with ``must''. DOE requests comment on this 
proposal.
    DOE proposes to extend certain set-up provisions to some of the new 
product classes addressed by this notice. For example, section 2.4 of 
Appendix A describes requirements for automatic defrost refrigerator-
freezers. DOE proposes to indicate in the title of this section that it 
applies to all automatic defrost refrigeration products covered by 
Appendix A with freezer compartments that have a temperature range 
equivalent to the freezer compartments of refrigerator-freezers. These 
products include hybrid refrigerator-freezers and hybrid freezers. 
Also, section 2.5 describes requirements for all-refrigerators with 
small compartments for the freezing and storage of ice. DOE proposes 
that the title of this section would be modified to also cite hybrid 
all-refrigerators, non-compressor all-refrigerators, and hybrid non-
compressor all-refrigerators. Finally, section 2.11 addresses 
refrigerators and refrigerator freezers with demand-response 
capability. DOE proposes that this requirement would generally apply to 
refrigeration products covered by the test procedure. DOE requests 
comment on these proposed extensions of the set-up requirements.

M. Changes to Volume Measurement and Calculation Instructions

    Section 5.3 of Appendices A and B, which references AHAM HRF-1-2008 
section 3.30 and sections 4.2 through 4.3, provides instructions for 
measuring a unit's refrigerated volume. Since establishing the test 
procedures in Appendices A and B, DOE has received questions regarding 
how to account for certain component volumes when determining the total 
refrigerated volume according to AHAM HRF-1-2008. DOE issued guidance 
on the proper treatment of such components in August 2012 (``Guidance 
on Component Consideration in Volume Measurements,'' No. 11, (``August 
2012 Guidance'')).\11\ DOE is proposing to amend Appendices A and B to 
clarify the appropriate volume measurements consistent with the 
instructions provided in the August 2012 Guidance.
---------------------------------------------------------------------------

    \11\ This and other DOE guidance documents are available for 
viewing at http://www1.eere.energy.gov/guidance/default.aspx?pid=2&spid=1.
---------------------------------------------------------------------------

    Specifically DOE proposes that the following component volumes 
would not be included in the compartment volume measurements: Icemaker 
compartment insulation (e.g., insulation isolating the icemaker 
compartment from the fresh food compartment of a product with a bottom-
mounted freezer with through-the-door ice service), fountain recess, 
dispenser insulation, and ice chute (if there is a plug, cover, or cap 
over the chute per Figure 4-2 of AHAM HRF-2-2008). DOE proposes that 
the following component volumes would be included in the compartment 
volume measurements: Icemaker auger motor (if housed inside the 
insulated space of the cabinet), icemaker kit, ice storage bin, and ice 
chute (up to the dispenser flap, if there is no plug, cover, or cap 
over the ice chute per Figure 4-3 of HRF-1-2008). DOE requests comment 
on the proposed volume measurement clarifications.
    Adjusted total volume is designated VA in Appendices A and B, 
whereas it is designated AV in 10 CFR 430.32. DOE proposes to change 
the designation to AV in the test procedure appendices for consistency.
    Rounding for volume calculations, as specified in HRF-1-2008, is to 
the nearest 0.01 cubic foot or 0.1 liter for freezer and fresh food 
compartments. DOE proposes to require that volumes of freezer, fresh 
food, and cellar compartments be rounded off to the nearest 0.01 cubic 
foot, and that, if the volumes of these compartments are recorded in 
liters, that they be converted to cubic feet and rounded off to the 
nearest 0.01 cubic foot before use in calculations of total 
refrigerated volume or adjusted total volume. DOE proposes also that 
total refrigerated volume and adjusted volume be recorded to the 
nearest 0.1 cubic foot.
    DOE requests comments on these proposals and is particularly 
interested in the proposed conversion when calculating refrigerated and 
adjusted total volumes.

N. Removal of Appendices A1 and B1

    On September 15, 2011, DOE published a final rule establishing 
amended energy conservation standards for refrigerators, refrigerator-
freezers, and freezers. (76 FR 57516) Any refrigerator, refrigerator-
freezer, or freezer manufactured starting on September 15, 2014, must 
be compliant with those amended standards to be legally distributed in 
commerce in the United States. To determine whether products comply 
with the amended standards, DOE requires that manufacturers use the 
test procedures set forth in Appendix A for refrigerators and 
refrigerator-freezers and Appendix B for freezers. Products 
manufactured

[[Page 74924]]

prior to September 15, 2014, were required to be tested for compliance 
with the existing standards using Appendices A1 or B1 unless the 
manufacturer was certifying the product for early compliance with the 
amended standards, in which case the manufacturer would use Appendix A 
or B. However, beginning on September 15, 2014, the Appendix A1 and B1 
test procedures will be displaced by Appendices A and B. To prevent 
confusion after the compliance date of the amended standards and to 
eliminate unnecessary regulatory text, DOE proposes to remove Appendix 
A1 and Appendix B1 from subpart B to 10 CFR part 430 and to remove 
reference to these appendices in other parts of the regulations.
    In addition, DOE proposes to remove from the list of materials 
incorporated by reference ANSI/AHAM HRF-1-1979, (Revision of ANSI 
B38.1-1970), (``HRF-1-1979''), American National Standard, Household 
Refrigerators, Combination Refrigerator-Freezers and Household 
Freezers. This commercial standard is incorporated by reference only 
into the test procedures of Appendices A1 and B1, which DOE proposes to 
eliminate.

O. Compliance With Other EPCA Requirements

1. Test Burden
    EPCA requires that the test procedures DOE prescribes or amends be 
reasonably designed to produce test results that measure the energy 
efficiency, energy use, or estimated annual operating cost of a covered 
product during a representative average use cycle or period of use. 
These procedures must also not be unduly burdensome to conduct. See 42 
U.S.C. 6293(b)(3). DOE has concluded that the amendments proposed in 
today's notice satisfy this requirement.
    The test procedures proposed in this notice apply primarily to 
products currently unregulated by DOE. Most of these products are very 
similar to refrigerators, refrigerator-freezers, and freezers, and use 
insulated cabinets and refrigeration systems to keep the interiors 
cool. The proposed test procedures are based on, and consistent with, 
test procedures currently required for testing refrigerators, 
refrigerator-freezers, and freezers and would not represent any greater 
test burden than DOE's test procedures for these products.
    The proposed test procedures for ice makers differ somewhat from 
the test procedures for refrigerators, refrigerator-freezers, and 
freezers. However, the test facilities and instrumentation required for 
testing ice makers would be nearly identical, and the test duration 
would be very similar and would represent no greater test burden than 
what is currently required of manufacturers of those refrigeration 
products that DOE already regulates.
    DOE considered whether the proposed test procedures could be 
modified to further reduce the burdens of its proposal without 
negatively affecting test accuracy and concluded that there are no such 
options for modification that would significantly reduce the burden 
beyond the steps already taken and described above.
2. Changes in Measured Energy Use
    Most of the amendments proposed in today's notice establish test 
procedures for products for which there currently are no DOE test 
procedures or energy conservation standards: Cooled cabinets, non-
compressor refrigeration products, hybrid freezers, and ice makers. 
Hence, there are no changes in measured energy use associated with 
these amendments.
    DOE had previously issued guidance that addressed hybrid products 
as well as refrigerator, refrigerator-freezer, and freezer products 
that have a wine chiller volume that comprises less than 50 percent of 
that product's interior volume. While this guidance may not have 
completely clarified whether existing coverage for refrigerators and 
refrigerator-freezers extends to any of these products, DOE's proposed 
coverage determination, published October 31, 2013, has since clarified 
the extent of this coverage and affirmed that products with a wine 
storage volume less than 50 percent of the total interior volume are 
currently subject to the standards applicable to refrigerators and 
refrigerator-freezers, but that hybrid products are not. 78 FR 65223. 
Hence, for refrigerator, refrigerator-freezer, and freezer products, 
including refrigerators and refrigerator-freezers that have a wine 
chiller comprising less than 50 percent of the product's volume, there 
also are no changes in measured energy use.
    This notice also proposes test procedure amendments for a small 
minority of product types that are currently covered by DOE's 
regulations, including non-hybrid refrigerators, refrigerator-freezers, 
and freezers that have cellar compartments comprising less than half of 
their total refrigerated volume. The test procedure amendments 
addressing these products for the most part clarify how to conduct the 
test, rather than impose any new requirements. Further, to the extent 
DOE is aware, no actual or planned products in this category (i.e., 
products with cellar compartments whose volumes are insufficient to 
meet the proposed hybrid refrigeration product definition) would be 
affected by the proposed amendments. Hence, DOE does not expect at this 
time that there would be any change in measured energy consumption for 
such products.
    Today's proposal also would modify the definitions for 
refrigerator, refrigerator-freezer, and freezer, and would introduce 
general terms such as consumer refrigeration product to denote groups 
of covered products. The definitional changes for refrigerator, 
refrigerator-freezer, and freezer would indicate that these products 
may contain cellar compartments that comprise less than half of their 
refrigerated volume, and would otherwise rearrange the order of the 
requirements to make the structure of all the definitions consistent. 
DOE is not aware of any existing products whose status would be changed 
by this amendment, nor does DOE believe that the proposal would change 
any product's energy use measurement.
    DOE requests comment on its findings that there would be no 
affected products for which there would be changes in measured energy 
use associated with any of the amendments proposed in this notice.
3. Standby and Off Mode Energy Use
    EPCA directs DOE to amend its test procedures to include standby 
mode and off mode energy consumption. It also requires that this energy 
consumption be integrated into the overall energy consumption 
descriptor for the product, unless DOE determines that the current test 
procedures for the product already fully account for and incorporate 
the standby and off mode energy consumption of the covered product. (42 
U.S.C. 6295(gg)(2)(A)(i)).
    DOE's proposal involves measuring the energy use of the affected 
products during extended time periods that include periods when the 
compressor and other key components are cycled off. All of the energy 
these products use during the ``off cycles'' would be included in the 
measurements. A given refrigeration product being tested could include 
auxiliary features that draw power in a standby or off mode. In such 
instances, HRF-1-2008, which is incorporated in relevant part into the 
proposed test procedures, generally instructs manufacturers to set 
certain auxiliary features to the lowest power position during testing. 
In this lowest power position, any standby or off mode energy use of 
such auxiliary features would be included in the energy

[[Page 74925]]

measurement. Hence, no separate changes would be needed to account for 
standby and off mode energy consumption, since the current (and as 
proposed) procedures address these modes. DOE also notes that it has 
included an ice storage test for the energy test procedure for ice 
makers, which effectively addresses standby energy use for these 
products during times when the ice maker is not actively making ice.
    DOE requests comments on its tentative determination that the 
proposed test procedures would adequately address standby and off mode 
energy use.

IV. Procedural Issues and Regulatory Review

A. Review Under Executive Order 12866

    The Office of Management and Budget (OMB) has determined that test 
procedure rulemakings do not constitute ``significant regulatory 
actions'' under section 3(f) of Executive Order 12866, Regulatory 
Planning and Review, 58 FR 51735 (Oct. 4, 1993). Accordingly, this 
action was not subject to review under the Executive Order by the 
Office of Information and Regulatory Affairs (OIRA) in the Office of 
Management and Budget.

B. Review Under the Regulatory Flexibility Act

    The Regulatory Flexibility Act (5 U.S.C. 601, et seq.) requires 
preparation of an initial regulatory flexibility analysis (IFRA) for 
any rule that by law must be proposed for public comment, unless the 
agency certifies that the rule, if promulgated, will not have a 
significant economic impact on a substantial number of small entities. 
As required by Executive Order 13272, ``Proper Consideration of Small 
Entities in Agency Rulemaking,'' 67 FR 53461 (August 16, 2002), DOE 
published procedures and policies on February 19, 2003, to ensure that 
the potential impacts of its rules on small entities are properly 
considered during the DOE rulemaking process. 68 FR 7990. DOE has made 
its procedures and policies available on the Office of the General 
Counsel's Web site: http://energy.gov/gc/office-general-counsel.
    For manufacturers of consumer refrigeration products, the Small 
Business Administration (SBA) has set a size threshold, which defines 
those entities classified as ``small businesses'' for the purposes of 
the statute. DOE used the SBA's size standards published on January 31, 
1996, as amended, to determine whether any small entities would be 
required to comply with the rule. 61 FR 3280, 3286, as amended at 67 FR 
3041, 3045 (Jan. 23, 2002) and at 69 FR 29192, 29203 (May 21, 2004); 
see also 65 FR 30836, 30850 (May 15, 2000), as amended at 65 FR 53533, 
53545 (Sept. 5, 2000). The size standards are codified at 13 CFR part 
121. The standards are listed by North American Industry Classification 
System (NAICS) code and industry description and are available at 
http://www.sba.gov/sites/default/files/files/Size_Standards_Table.pdf. 
Miscellaneous refrigeration product manufacturers are classified under 
NAICS 335222, ``Household Refrigerator and Home Freezer Manufacturing'' 
and NAICS 333415, ``Air-Conditioning and Warm Air Heating Equipment and 
Commercial and Industrial Refrigeration Equipment Manufacturing.'' The 
SBA sets a threshold of 1,000 employees or less for an entity to be 
considered as a small business for NAICS 335222 and 750 employees or 
less for NAICS 333415.
    In this NOPR, DOE proposes new test procedures for miscellaneous 
refrigeration products, comprising cooled cabinets (e.g., wine chillers 
and beverage centers), hybrid refrigeration products, non-compressor 
refrigerators, and ice makers. As described in section III.O.2, these 
products are not currently covered by DOE energy conservation 
standards. The notice also proposes to amend the test procedure for 
refrigerators, refrigerator-freezers, and freezers that have cellar 
compartments that have a volume insufficient to be considered hybrid 
products under today's proposal. The proposed test procedures, when 
taken as a whole, may impact manufacturers who would be required to 
test their products in accordance with these proposed requirements. DOE 
has analyzed these impacts on small businesses and presents its 
findings below.
    DOE examined the potential impacts of the new testing procedures 
proposed in this rulemaking under the provisions of the Regulatory 
Flexibility Act and the procedures and policies published on February 
19, 2003. In using these procedures, DOE conducted a more focused 
inquiry into small business manufacturers of products that would be 
covered by this proposal. During its market survey, DOE used all 
available public information to identify potential small manufacturers. 
DOE's research involved the review of product databases (e.g., 
California Energy Commission (CEC), and Natural Resources Canada 
(NRCan) databases) and individual company Web sites to create a list of 
companies that manufacture or sell miscellaneous refrigeration 
products. DOE reviewed these data to determine whether the entities met 
the SBA's definition of a small business manufacturer of miscellaneous 
refrigeration products and screened out companies that do not offer 
products that would be affected by the proposed amendments, do not meet 
the definition of a ``small business,'' or are foreign-owned and 
operated.
    DOE identified four small business manufacturers of products that 
would be affected by today's proposal. From its analysis, DOE 
determined the expected impacts of the proposed rule on affected small 
businesses and whether DOE could certify that this rulemaking would not 
have a significant economic impact on a substantial number of small 
entities.
    If adopted, the proposed test procedure would provide new test 
procedures for manufacturers to use when evaluating the energy 
efficiency of all cooled cabinets, ice makers, non-compressor 
refrigerators, and hybrid refrigeration products as they are all 
defined in today's proposal. Cooled cabinets are currently regulated by 
the CEC and NRCan as wine chillers. DOE assumes that such products sold 
in California and/or Canada are the same products sold in the remaining 
States. Hence, manufacturers have already tested such products in order 
to report energy use to CEC and/or NRCan. The proposed test procedure 
would modify the calculation of energy use for these products, but 
would not require retesting. The cost to manufacturers associated with 
testing procedures for the remaining products addressed by today's 
proposal are estimated to average $2,500 per test. This estimate is 
based on input from third party testing labs for completing tests as 
specified by DOE's proposed test procedure.
    The primary cost for small businesses under this rulemaking would 
result from the aforementioned testing requirements. The four 
identified small businesses manufacture cooled cabinets, hybrid 
refrigeration products, and ice makers. However, assuming that DOE 
establishes coverage over the products addressed in this proposal, only 
products for which manufacturers publicly make energy use claims would 
be required under Federal law to be tested using a DOE test procedure. 
(At this time, there are no Federal energy conservation standards in 
place for these products.) Currently, only wine chillers (treated under 
this proposal as cooled cabinets) are required to make representations 
of their energy use by virtue of their coverage by the State of 
California. Moreover, although some of the four identified small 
businesses also manufacture ice makers, they do not

[[Page 74926]]

make any public claims regarding their energy consumption; therefore, 
these ice makers would not be subject to any testing requirements under 
this rulemaking. As mentioned above, existing cooled cabinet models 
that are being sold in the U.S. are assumed to have already been 
tested, and the proposed test would require only an adjustment of the 
calculated energy use. Consequently, costs associated with revising the 
calculations of energy use and revising representations of energy use 
were applied only to the number of existing basic models of cooled 
cabinets manufactured by these small businesses, which DOE estimated at 
25 cooled cabinet basic models. DOE estimated that revising the energy 
use representations for these products would require 120 hours of 
effort for each manufacturer. The average hourly salary for an engineer 
completing these tasks is estimated at $44.36.\12\ Fringe benefits are 
estimated at 30 percent of total compensation, which brings the hourly 
costs to employers associated with reviewing and filing of reports to 
$57.67.\13\ Hence, total costs to small businesses to implement the 
requirements of this rulemaking are estimated at $28,000, or an average 
of $7,000 per small business.
---------------------------------------------------------------------------

    \12\ U.S. Department of Labor, Bureau of Labor Statistics. 2011. 
National Occupational Employment and Wage Estimates. Washington, DC.
    \13\ U.S. Department of Labor, Bureau of Labor Statistics. 2010. 
Employer Costs for Employee Compensation--Management, Professional, 
and Related Employees. Washington, DC.
---------------------------------------------------------------------------

    DOE also considered the additional costs associated with the test 
procedure requirements of testing and reporting to DOE the energy use 
of the products other than cooled cabinets that are the subject of this 
notice. These costs would be incurred if an energy conservation 
standard were established that imposed efficiency requirements as well 
as requirements to report energy use for these products. Based on an 
estimated testing cost of $2,500 per unit, testing of two units per 
basic model, shipping costs for shipping the units to a test laboratory 
of $150 per unit, test management and review time of 5 hours per unit, 
reporting time of 40 hours plus 6 hours per model, and the above hourly 
rate, the additional costs are estimated at $74,000, or $18,500 per 
small business.
    DOE seeks comment on its estimated additional testing cost from the 
proposed testing requirements, particularly the impacts of these 
additional costs on small manufacturers and whether the number of small 
businesses DOE has identified is accurate.
    DOE also analyzed the testing cost burden relative to the revenues 
of small manufacturers. Based on this analysis, DOE estimates that the 
cost burden of the test procedure proposal's requirement for revising 
representations of cooled cabinets ranges from 0.01 to 0.02 percent of 
annual revenues, depending on the small entity affected by this test 
procedure. DOE concludes that these values would be unlikely to 
represent a significant economic impact for small businesses. The total 
cost burden, including the cost associated with the additional 
requirement for testing of the additional products associated with this 
notice, if energy conservation standards are established, ranges from 
0.01 to 0.2 percent of annual revenues. DOE concludes that this also 
would be unlikely to represent a significant economic impact for small 
businesses.
    Based on the criteria outlined above, DOE has determined that the 
proposed amendments would not have a ``significant economic impact on a 
substantial number of small entities,'' and the preparation of a 
regulatory flexibility analysis is not required. DOE will transmit the 
certification and supporting statement of factual basis to the Chief 
Counsel for Advocacy of the Small Business Administration for review 
under 5 U.S.C. 605(b).
    DOE seeks comment on its reasoning that the proposed test procedure 
changes would not have a significant impact on a substantial number of 
small entities.

C. Review Under the Paperwork Reduction Act of 1995

    DOE has generally established regulations for the certification and 
recordkeeping requirements for certain covered consumer products and 
commercial equipment. 76 FR 12422 (March 7, 2011). DOE proposed to add 
coverage for miscellaneous refrigeration products in a notice published 
on October 31, 2013. 78 FR 65223. All collections of information from 
the public by a Federal agency must receive prior approval from OMB. 
DOE is actively pursuing its renewal and expansion for the information 
collection for all of its covered products, including miscellaneous 
refrigeration products. As part of that effort, DOE estimated its 
public reporting burden for a typical manufacturer that is subject to 
DOE recordkeeping regulations. DOE estimated that it will take each 
respondent approximately 30 hours total per company per year to comply 
with the certification and recordkeeping requirements based on 20 hours 
of technician/technical work and 10 hours clerical work to actually 
submit the CCMS templates. DOE has proposed certification requirements 
for miscellaneous refrigeration products (which would only be required 
if DOE ultimately issues a coverage determination and sets standards 
for these products). This rulemaking would include recordkeeping 
requirements on manufacturers that are associated with executing and 
maintaining the test data for these products. For the purposes of 
estimating burden, DOE assumed that each respondent will spend 30 hours 
total per company per year estimate. DOE recognizes that recordkeeping 
burden may vary substantially based on company preferences and 
practices. DOE requests comment on this burden estimate and plans to 
publish a notice once the information approval is approved by OMB 
should this rulemaking be finalized as proposed.

D. Review Under the National Environmental Policy Act of 1969

    DOE is proposing test procedure amendments that will likely be used 
to develop and implement future energy conservation standards for 
miscellaneous refrigeration products. DOE has determined that this rule 
falls into a class of actions that are categorically excluded from 
review under the National Environmental Policy Act of 1969 (42 U.S.C. 
4321, et seq.) and DOE's implementing regulations at 10 CFR part 1021. 
Specifically, this proposed rule would amend the existing test 
procedures without affecting the amount, quality or distribution of 
energy usage, and, therefore, would not result in any environmental 
impacts. Thus, this rulemaking is covered by Categorical Exclusion A6 
under 10 CFR part 1021, subpart D, which applies to any rulemaking that 
interprets or amends an existing rule without changing the 
environmental effect of that rule. Accordingly, neither an 
environmental assessment nor an environmental impact statement is 
required.

E. Review Under Executive Order 13132

    Executive Order 13132, ``Federalism,'' 64 FR 43255 (August 4, 1999) 
imposes certain requirements on agencies formulating and implementing 
policies or regulations that preempt State law or that have Federalism 
implications. The Executive Order requires agencies to examine the 
constitutional and statutory authority supporting any action that would 
limit the policymaking discretion of the States and to carefully assess 
the necessity for such actions. The Executive Order also requires 
agencies to have an accountable process to

[[Page 74927]]

ensure meaningful and timely input by State and local officials in the 
development of regulatory policies that have Federalism implications. 
On March 14, 2000, DOE published a statement of policy describing the 
intergovernmental consultation process it will follow in the 
development of such regulations. 65 FR 13735. DOE has examined this 
proposed rule and has determined that it would not have a substantial 
direct effect on the States, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government. EPCA governs 
and prescribes Federal preemption of State regulations as to energy 
conservation for the products that are the subject of today's proposed 
rule. States can petition DOE for exemption from such preemption to the 
extent, and based on criteria, set forth in EPCA. (42 U.S.C. 6297(d)) 
No further action is required by Executive Order 13132.

F. Review Under Executive Order 12988

    Regarding the review of existing regulations and the promulgation 
of new regulations, section 3(a) of Executive Order 12988, ``Civil 
Justice Reform,'' 61 FR 4729 (Feb. 7, 1996), imposes on Federal 
agencies the general duty to adhere to the following requirements: (1) 
Eliminate drafting errors and ambiguity; (2) write regulations to 
minimize litigation; (3) provide a clear legal standard for affected 
conduct rather than a general standard; and (4) promote simplification 
and burden reduction. Section 3(b) of Executive Order 12988 
specifically requires that Executive agencies make every reasonable 
effort to ensure that the regulation: (1) Clearly specifies the 
preemptive effect, if any; (2) clearly specifies any effect on existing 
Federal law or regulation; (3) provides a clear legal standard for 
affected conduct while promoting simplification and burden reduction; 
(4) specifies the retroactive effect, if any; (5) adequately defines 
key terms; and (6) addresses other important issues affecting clarity 
and general draftsmanship under any guidelines issued by the Attorney 
General. Section 3(c) of Executive Order 12988 requires Executive 
agencies to review regulations in light of applicable standards in 
sections 3(a) and 3(b) to determine whether they are met or it is 
unreasonable to meet one or more of them. DOE has completed the 
required review and determined that, to the extent permitted by law, 
the proposed rule meets the relevant standards of Executive Order 
12988.

G. Review Under the Unfunded Mandates Reform Act of 1995

    Title II of the Unfunded Mandates Reform Act of 1995 (UMRA) 
requires each Federal agency to assess the effects of Federal 
regulatory actions on State, local, and Tribal governments and the 
private sector. Public Law 104-4, sec. 201 (codified at 2 U.S.C. 1531). 
For a proposed regulatory action likely to result in a rule that may 
cause the expenditure by State, local, and Tribal governments, in the 
aggregate, or by the private sector of $100 million or more in any one 
year (adjusted annually for inflation), section 202 of UMRA requires a 
Federal agency to publish a written statement that estimates the 
resulting costs, benefits, and other effects on the national economy. 
(2 U.S.C. 1532(a), (b)) The UMRA also requires a Federal agency to 
develop an effective process to permit timely input by elected officers 
of State, local, and Tribal governments on a proposed ``significant 
intergovernmental mandate,'' and requires an agency plan for giving 
notice and opportunity for timely input to potentially affected small 
governments before establishing any requirements that might 
significantly or uniquely affect small governments. On March 18, 1997, 
DOE published a statement of policy on its process for 
intergovernmental consultation under UMRA. 62 FR 12820; also available 
at http://energy.gov/gc/office-general-counsel. DOE examined today's 
proposed rule according to UMRA and its statement of policy and 
determined that the rule contains neither an intergovernmental mandate, 
nor a mandate that may result in the expenditure of $100 million or 
more in any year. Accordingly, these requirements do not apply.

H. Review Under the Treasury and General Government Appropriations Act, 
1999

    Section 654 of the Treasury and General Government Appropriations 
Act, 1999 (Pub. L. 105-277) requires Federal agencies to issue a Family 
Policymaking Assessment for any rule that may affect family well-being. 
This proposed rule would not have any impact on the autonomy or 
integrity of the family as an institution. Accordingly, DOE has 
concluded that it is not necessary to prepare a Family Policymaking 
Assessment.

I. Review Under Executive Order 12630

    DOE has determined, under Executive Order 12630, ``Governmental 
Actions and Interference with Constitutionally Protected Property 
Rights'' 53 FR 8859 (March 18, 1988), that this proposed regulation 
would not result in any takings that might require compensation under 
the Fifth Amendment to the U.S. Constitution.

J. Review Under Treasury and General Government Appropriations Act, 
2001

    Section 515 of the Treasury and General Government Appropriations 
Act, 2001 (44 U.S.C. 3516, note) provides for agencies to review most 
disseminations of information to the public under guidelines 
established by each agency pursuant to general guidelines issued by 
OMB. OMB's guidelines were published at 67 FR 8452 (Feb. 22, 2002), and 
DOE's guidelines were published at 67 FR 62446 (Oct. 7, 2002). DOE has 
reviewed today's proposed rule under the OMB and DOE guidelines and has 
concluded that it is consistent with applicable policies in those 
guidelines.

K. Review Under Executive Order 13211

    Executive Order 13211, ``Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution, or Use,'' 66 FR 28355 
(May 22, 2001), requires Federal agencies to prepare and submit to OMB, 
a Statement of Energy Effects for any proposed significant energy 
action. A ``significant energy action'' is defined as any action by an 
agency that promulgated or is expected to lead to promulgation of a 
final rule, and that: (1) Is a significant regulatory action under 
Executive Order 12866, or any successor order; and (2) is likely to 
have a significant adverse effect on the supply, distribution, or use 
of energy; or (3) is designated by the Administrator of OIRA as a 
significant energy action. For any proposed significant energy action, 
the agency must give a detailed statement of any adverse effects on 
energy supply, distribution, or use should the proposal be implemented, 
and of reasonable alternatives to the action and their expected 
benefits on energy supply, distribution, and use.
    Today's regulatory action proposes to establish test procedures to 
measure the energy efficiency of miscellaneous refrigeration products, 
and is not a significant regulatory action under Executive Order 12866. 
Moreover, it would not have a significant adverse effect on the supply, 
distribution, or use of energy, nor has it been designated as a 
significant energy action by the Administrator of OIRA. Therefore, it 
is not a significant energy action, and, accordingly, DOE has not 
prepared a Statement of Energy Effects.

[[Page 74928]]

L. Review Under Section 32 of the Federal Energy Administration Act of 
1974

    Under section 301 of the Department of Energy Organization Act 
(Pub. L. 95-91; 42 U.S.C. 7101), DOE must comply with section 32 of the 
Federal Energy Administration Act of 1974, as amended by the Federal 
Energy Administration Authorization Act of 1977. (15 U.S.C. 788; FEAA) 
Section 32 essentially provides in relevant part that, where a proposed 
rule authorizes or requires use of commercial standards, the notice of 
proposed rulemaking must inform the public of the use and background of 
such standards. In addition, section 32(c) requires DOE to consult with 
the Attorney General and the Chairman of the Federal Trade Commission 
(FTC) concerning the impact of the commercial or industry standards on 
competition.
    The proposed rule would require using testing methods contained in 
the following commercial standards: AHAM HRF-1-2008, ``Energy and 
Internal Volume of Refrigerating Appliances'', and ANSI-ASHRAE 29-2009, 
``Method of Testing Automatic Ice Makers.'' DOE has evaluated these 
standards and is unable to conclude whether they fully comply with the 
requirements of section 32(b) of the FEAA, (i.e., that they were 
developed in a manner that fully provides for public participation, 
comment, and review). DOE will consult with the Attorney General and 
the Chairman of the FTC concerning the impact of these test procedures 
on competition, prior to prescribing a final rule.

V. Public Participation

A. Attendance at Public Meeting

    The time, date and location of the public meeting are listed in the 
DATES and ADDRESSES sections at the beginning of this document. If you 
plan to attend the public meeting, please notify Ms. Brenda Edwards at 
(202) 586-2945 or <a href="/cdn-cgi/l/email-protection#450737202b21246b002132243721360520206b212a206b222a33"><span class="__cf_email__" data-cfemail="622010070c06034c270615031006112207074c060d074c050d14">[email protected]</span></a>. Please note that foreign 
nationals visiting DOE Headquarters are subject to advance security 
screening procedures. Any foreign national wishing to participate in 
the meeting should advise DOE as soon as possible by contacting Ms. 
Regina Washington at (202) 586-1214 or by email: 
<a href="/cdn-cgi/l/email-protection#8ad8efede3e4eba4ddebf9e2e3e4edfee5e4caefefa4eee5efa4ede5fc"><span class="__cf_email__" data-cfemail="386a5d5f515659166f594b5051565f4c5756785d5d165c575d165f574e">[email protected]</span></a>. Please also note that those wishing to 
bring laptops into the Forrestal Building will be required to obtain a 
property pass. Visitors should avoid bringing laptops, or allow an 
extra 45 minutes. Persons can attend the public meeting via webinar. 
For more information, refer to the Public Participation section near 
the end of this notice.
    DOE requires visitors with laptop computers and other devices, such 
as tablets, to be checked upon entry into the building. Any person 
wishing to bring these devices into the Forrestal Building will be 
required to obtain a property pass. Visitors should avoid bringing 
these devices, or allow an extra 45 minutes to check in. Please report 
to the visitor's desk to have devices checked before proceeding through 
security.
    Due to the REAL ID Act implemented by the Department of Homeland 
Security (DHS), there have been recent changes regarding ID 
requirements for individuals wishing to enter Federal buildings from 
specific states and U.S. territories. Driver's licenses from the 
following states or territory will not be accepted for building entry 
and one of the alternate forms of ID listed below will be required. DHS 
has determined that regular driver's licenses (and ID cards) from the 
following jurisdictions are not acceptable for entry into DOE 
facilities: Alaska, American Samoa, Arizona, Louisiana, Maine, 
Massachusetts, Minnesota, New York, Oklahoma, and Washington. 
Acceptable alternate forms of Photo-ID include: U.S. Passport or 
Passport Card; an Enhanced Driver's License or Enhanced ID-Card issued 
by the states of Minnesota, New York or Washington (Enhanced licenses 
issued by these states are clearly marked Enhanced or Enhanced Driver's 
License); a military ID or other Federal government issued Photo-ID 
card.
    In addition, you can attend the public meeting via webinar. Webinar 
registration information, participant instructions, and information 
about the capabilities available to webinar participants will be 
published on DOE's Web site, http://www1.eere.energy.gov/buildings/appliance_standards/rulemaking.aspx?ruleid=105. Participants are 
responsible for ensuring their systems are compatible with the webinar 
software.

B. Procedure for Submitting Prepared General Statements for 
Distribution

    Any person who has plans to present a prepared general statement 
may request that copies of his or her statement be made available at 
the public meeting. Such persons may submit requests, along with an 
advance electronic copy of their statement in PDF (preferred), 
Microsoft Word or Excel, WordPerfect, or text (ASCII) file format, to 
the appropriate address shown in the ADDRESSES section at the beginning 
of this notice. The request and advance copy of statements must be 
received at least one week before the public meeting and may be 
emailed, hand-delivered, or sent by mail. DOE prefers to receive 
requests and advance copies via email. Please include a telephone 
number to enable DOE staff to make a follow-up contact, if needed.

C. Conduct of Public Meeting

    DOE will designate a DOE official to preside at the public meeting 
and may also use a professional facilitator to aid discussion. The 
meeting will not be a judicial or evidentiary-type public hearing, but 
DOE will conduct it in accordance with section 336 of EPCA (42 U.S.C. 
6306). A court reporter will be present to record the proceedings and 
prepare a transcript. DOE reserves the right to schedule the order of 
presentations and to establish the procedures governing the conduct of 
the public meeting. After the public meeting and until the end of the 
comment period, interested parties may submit further comments on the 
proceedings and any aspect of the rulemaking.
    The public meeting will be conducted in an informal, conference 
style. DOE will present summaries of comments received before the 
public meeting, allow time for prepared general statements by 
participants, and encourage all interested parties to share their views 
on issues affecting this rulemaking. Each participant will be allowed 
to make a general statement (within time limits determined by DOE), 
before the discussion of specific topics. DOE will permit, as time 
permits, other participants to comment briefly on any general 
statements.
    At the end of all prepared statements on a topic, DOE will permit 
participants to clarify their statements briefly and comment on 
statements made by others. Participants should be prepared to answer 
questions by DOE and by other participants concerning these issues. DOE 
representatives may also ask questions of participants concerning other 
matters relevant to this rulemaking. The official conducting the public 
meeting will accept additional comments or questions from those 
attending, as time permits. The presiding official will announce any 
further procedural rules or modification of the above procedures that 
may be needed for the proper conduct of the public meeting.
    A transcript of the public meeting will be included in the docket, 
which can be viewed as described in the Docket section at the beginning 
of this notice. In addition, any person may buy a copy of the 
transcript from the transcribing reporter.

[[Page 74929]]

D. Submission of Comments

    DOE will accept comments, data, and information regarding this 
proposed rule before or after the public meeting, but no later than the 
date provided in the DATES section at the beginning of this proposed 
rule. Interested parties may submit comments using any of the methods 
described in the ADDRESSES section at the beginning of this notice.
    Submitting comments via regulations.gov. The regulations.gov Web 
page will require you to provide your name and contact information. 
Your contact information will be viewable to DOE Building Technologies 
staff only. Your contact information will not be publicly viewable 
except for your first and last names, organization name (if any), and 
submitter representative name (if any). If your comment is not 
processed properly because of technical difficulties, DOE will use this 
information to contact you. If DOE cannot read your comment due to 
technical difficulties and cannot contact you for clarification, DOE 
may not be able to consider your comment.
    However, your contact information will be publicly viewable if you 
include it in the comment or in any documents attached to your comment. 
Any information that you do not want to be publicly viewable should not 
be included in your comment, nor in any document attached to your 
comment. Persons viewing comments will see only first and last names, 
organization names, correspondence containing comments, and any 
documents submitted with the comments.
    Do not submit to regulations.gov information for which disclosure 
is restricted by statute, such as trade secrets and commercial or 
financial information (hereinafter referred to as Confidential Business 
Information (CBI)). Comments submitted through regulations.gov cannot 
be claimed as CBI. Comments received through the Web site will waive 
any CBI claims for the information submitted. For information on 
submitting CBI, see the Confidential Business Information section.
    DOE processes submissions made through regulations.gov before 
posting. Normally, comments will be posted within a few days of being 
submitted. However, if large volumes of comments are being processed 
simultaneously, your comment may not be viewable for up to several 
weeks. Please keep the comment tracking number that regulations.gov 
provides after you have successfully uploaded your comment.
    Submitting comments via email, hand delivery, or mail. Comments and 
documents submitted via email, hand delivery, or mail also will be 
posted to regulations.gov. If you do not want your personal contact 
information to be publicly viewable, do not include it in your comment 
or any accompanying documents. Instead, provide your contact 
information on a cover letter. Include your first and last names, email 
address, telephone number, and optional mailing address. The cover 
letter will not be publicly viewable as long as it does not include any 
comments.
    Include contact information each time you submit comments, data, 
documents, and other information to DOE. If you submit via mail or hand 
delivery, please provide all items on a CD, if feasible. It is not 
necessary to submit printed copies. No facsimiles (faxes) will be 
accepted.
    Comments, data, and other information submitted to DOE 
electronically should be provided in PDF (preferred), Microsoft Word or 
Excel, WordPerfect, or text (ASCII) file format. Provide documents that 
are not secured, written in English and free of any defects or viruses. 
Documents should not contain special characters or any form of 
encryption and, if possible, they should carry the electronic signature 
of the author.
    Campaign form letters. Please submit campaign form letters by the 
originating organization in batches of between 50 to 500 form letters 
per PDF or as one form letter with a list of supporters' names compiled 
into one or more PDFs. This reduces comment processing and posting 
time.
    Confidential Business Information. According to 10 CFR 1004.11, any 
person submitting information that he or she believes to be 
confidential and exempt by law from public disclosure should submit via 
email, postal mail, or hand delivery two well-marked copies: one copy 
of the document marked confidential including all the information 
believed to be confidential, and one copy of the document marked non-
confidential with the information believed to be confidential deleted. 
Submit these documents via email or on a CD, if feasible. DOE will make 
its own determination about the confidential status of the information 
and treat it according to its determination.
    Factors of interest to DOE when evaluating requests to treat 
submitted information as confidential include: (1) A description of the 
items; (2) whether and why such items are customarily treated as 
confidential within the industry; (3) whether the information is 
generally known by or available from other sources; (4) whether the 
information has previously been made available to others without 
obligation concerning its confidentiality; (5) an explanation of the 
competitive injury to the submitting person which would result from 
public disclosure; (6) when such information might lose its 
confidential character due to the passage of time; and (7) why 
disclosure of the information would be contrary to the public interest.
    It is DOE's policy that all comments may be included in the public 
docket, without change and as received, including any personal 
information provided in the comments (except information deemed to be 
exempt from public disclosure).

E. Issues on Which DOE Seeks Comment

    Although DOE welcomes comments on any aspect of this proposal, DOE 
is particularly interested in receiving comments and views of 
interested parties concerning the following issues:
    1. DOE requests comment on the use of the term ``cooled cabinet'' 
to denote products such as wine chillers that maintain compartment 
temperatures that are warmer than 39[emsp14][deg]F and on the proposed 
definition for these products.
    2. DOE requests comment on the use of the terms ``non-compressor 
cooled cabinet'' and ``non-compressor refrigerator'' to denote products 
that use alternative refrigeration systems. DOE also requests comment 
on the definitions proposed for these products, and also on DOE's 
initial market research indicating that non-compressor refrigerator-
freezers and non-compressor freezers are not available for sale.
    3. DOE requests comment on the definitions for hybrid products, 
including on the proposed requirement that hybrid status would require 
that at least 50 percent of the product's refrigerated volume comprise 
one or more warm compartments such as wine chiller compartments.
    4. DOE requests comment on its proposed definition for ice makers. 
DOE also requests comment on whether it is necessary to further 
distinguish ice makers from freezers in the proposed ice maker 
definition. If so, what specific changes would be needed to the 
definition to ensure clarity between these two terms?
    5. DOE requests comment on its proposed definitions for 
``refrigerator, refrigerator-freezer, and freezer'', ``miscellaneous 
refrigeration product'', and ``consumer refrigeration product.''
    6. DOE requests comment on the proposed changes to the definitions 
for refrigerator, refrigerator-freezer, and freezer that would 
distinguish these products from commercial refrigeration

[[Page 74930]]

equipment. Similarly, DOE also seeks general comments on its proposed 
clarifying amendments to these definitions.
    7. DOE requests comment on its proposal to remove provisions for 
testing externally vented products from the test procedures.
    8. DOE requests comment on its proposed sampling plans and 
certification report requirements for the products covered by this 
proposed test procedure. DOE also requests comments on its proposal to 
establish requirements for allowing use of CAD for volume measurements 
and for regulations associated with verification of certified volumes 
for miscellaneous refrigeration products.
    9. DOE invites comment on its definition for cellar compartment. 
DOE also requests comment on whether an alternative term may be more 
appropriate than ``cellar'' to denote this type of compartment.
    10. DOE requests comment on its proposal to use 55[emsp14][deg]F as 
the cellar compartment standardized temperature during testing.
    11. DOE requests comments on it proposals for measuring cellar 
compartment temperatures.
    12. DOE requests comment on its proposal to require that cellar 
compartments with their own temperature control within products that 
are not cooled cabinets or hybrid refrigeration products be treated as 
special compartments.
    13. DOE requests comment on its proposals for incorporating cellar 
compartment temperature measurements into the test procedure 
requirements for temperature control settings and the proposed 
selection of tests to be used to calculate energy use for cooled 
cabinets and hybrid refrigeration products.
    14. DOE requests comments on the proposals for calculating cellar 
compartment volume and for using a volume adjustment factor of 1.0 for 
these compartments for cooled cabinets and a volume adjustment factor 
of 0.69 for these compartments in other refrigeration products.
    15. DOE requests comments on its proposed test procedure changes to 
address compartments that are convertible between the cellar 
compartment temperature range and fresh food and/or freezer temperature 
range.
    16. DOE requests comment on its proposals for ambient temperatures 
and usage adjustment factors for both vapor-compression and non-
compressor cooled cabinets. DOE requests information regarding field 
energy use of wine chillers and other cooled cabinets which it could 
use to confirm or adjust the proposed adjustment factors.
    17. DOE requests comment on its proposal, for cooled cabinets 
equipped with manual light switches, that only one test would be 
required, with the lighting control set to its lowest energy use 
position.
    18. DOE seeks comment on its proposal to require testing of non-
compressor refrigerators in 90[emsp14][deg]F ambient temperature 
conditions, to require that their energy use be calculated with a usage 
factor equal to 1.0, and to require that certification reports include 
the fresh food compartment temperature attained in testing (if warmer 
than 39[emsp14][deg]F). DOE also requests comment on its potential 
consideration of adjustments to the energy conservation standards to be 
developed for non-compressor refrigerators that would address the 
reduced stringency of a test in which the compartment temperature is 
warmer than the standardized temperature.
    19. DOE requests comment on its proposal that non-compressor 
refrigeration system cycling be addressed in the test procedure by 
indicating that the term ``compressor cycles'' means ``refrigeration 
system cycles'' for such products.
    20. DOE requests comment on its proposal to incorporate into 
Appendices A and B the extrapolation approach when testing 
refrigeration products other than non-compressor refrigerators, subject 
to the requirement that the measured warm-setting compartment 
temperature(s) must be warmer than the cold-setting compartment 
temperatures and that the measured energy use must be lower in the warm 
setting.
    21. DOE seeks comments on its proposal to specify that hybrid 
refrigeration products be tested in 90[emsp14][deg]F ambient 
temperature conditions, and that their energy use be calculated using a 
0.85 usage adjustment factor.
    22. DOE requests comment on its proposals to incorporate cellar 
compartment temperatures into the test procedure requirements for 
setting temperature controls, conducting tests, and calculating product 
energy consumption.
    23. DOE requests comments on the proposed definitions delineating 
different types of ice makers. DOE also seeks comment on whether the 
industry uses terminology that would be more technically accurate (and 
descriptive) when distinguishing cooled-storage from uncooled-storage 
ice makers.
    24. DOE requests comment on its proposed definitions to support the 
proposed test procedures for ice makers.
    25. DOE requests comment on its proposal to establish an energy use 
metric for ice makers that includes both ice production and ice storage 
energy use, and whether the proposed metric would sufficiently capture 
the total energy consumption of both cooled-storage and uncooled-
storage ice makers.
    26. DOE requests comment on its proposed daily ice consumption rate 
of 4 lb per day. DOE also seeks access to field or survey data that 
would yield, if possible, a more representative value for a daily ice 
consumption rate. DOE also requests comment on whether the daily ice 
consumption rate used in its proposal should vary based on ice maker 
harvest rate, and if so, how the rate should vary.
    27. DOE requests comment on its proposal to require testing of ice 
makers in a 72[emsp14][deg]F ambient temperature condition and its 
proposal to otherwise apply to ice makers all of the set-up 
requirements applicable to ice makers that are currently required for 
refrigerators, refrigerator-freezers, and freezers. DOE also seeks 
comment on its assumption that ice makers are not opened as frequently 
as other refrigeration products.
    28. DOE requests comment on whether its proposed water temperature 
conditions for portable and non-portable ice makers are appropriate: 72 
<plus-minus> 2[emsp14][deg]F temperature and 60 <plus-minus> 15 psig 
pressure for non-portable ice makers, and 55 <plus-minus> 
2[emsp14][deg]F temperature for portable ice makers.
    29. DOE requests comment on all aspects of its proposed test 
conditions and test set-up requirements for ice makers. DOE also 
requests comment on its proposals for ice maker drain lines and for 
drain pumps. DOE also requests information regarding the power 
consumption of such pumps.
    30. DOE requests comment on the proposed two-hour stabilization 
period for the icemaking portion of the test for ice makers.
    31. DOE requests comment on its proposal to require that ice be 
retrieved within two-minutes after the end of the icemaking test period 
and seeks suggestions and alternative ice collection delay limits. DOE 
also seeks any supporting data regarding the proposed and alternative 
limits.
    32. DOE seeks comment on its proposed use of a perforated container 
and the container specifications, the proposed requirements for the 
scale used to measure the ice weight, the proposed requirement to leave 
the ice

[[Page 74931]]

produced during the stabilization period in the ice storage bin (i.e., 
the six-hour test period), or any other aspect of the proposed test.
    33. DOE requests comment on its proposed methodology for measuring 
ice storage energy consumption for both cooled-storage and uncooled-
storage ice makers. In particular, it requests comment on whether its 
proposed duration for the uncooled-storage test period is of sufficient 
length to reduce the variability in test results that might be caused 
by the inconsistent intervals between ice production and idle periods 
when the ice maker is operating only to replenish melted ice.
    34. DOE requests comment on its proposed adjustment to the 
icemaking energy use for continuous-type ice makers to account for ice 
hardness less than 100 percent, and its proposed approach that would 
allow use of either an ice hardness value measured using calorimetry or 
a standard ice hardness factor. DOE also requests comment on whether 
its proposed ice hardness factor of 0.85 is an appropriate value to 
represent the nugget ice expected to be used in consumer continuous-
type ice makers.
    35. DOE requests comment on its proposed method for calculating the 
daily energy consumption of ice makers. In addition, DOE requests 
comment on whether 0.5 is an appropriate annual usage adjustment factor 
for portable ice makers and seeks access to field or survey data that 
could help it develop a more representative assumption.
    36. DOE requests comment on its proposal to change the term ``test 
period'' to ``test'' in sections 6.2.1.1, 6.2.1.2, 6.2.2.1, 6.2.3.1, 
and 6.2.4.1 of Appendix A and in sections 6.2.1.1 and 6.2.1.2 of 
Appendix B.
    37. DOE requests comment on its proposal to refer to primary 
compartments as ``primary'' compartments rather than ``first'' 
compartments in its discussions of separate auxiliary compartments.
    38. DOE requests comments on its proposal to replace ``should'' 
with ``must'' in its definition for variable defrost.
    39. DOE requests comment on its proposed extension of the 
requirements of Appendix A, sections 2.4, 2.5, and 2.11 to the 
appropriate new products addressed by this notice.
    40. DOE requests comment on the proposed clarifications to the 
refrigerated volume measurements in Appendices A and B, which are 
consistent with the August 2012 Guidance.
    41. DOE requests comments on its proposal to modify the designation 
for adjusted volume to ``AV'' in Appendices A and B, and its proposal 
to require that the volumes of freezer, fresh food, and cellar 
compartments be rounded to the nearest 0.01 cubic foot before 
calculation of a product's total refrigerated volume or adjusted 
volume.
    42. DOE seeks comment on its reasoning that the proposed test 
procedure changes would not have a significant impact on a substantial 
number of small entities.

VI. Approval of the Office of the Secretary

    The Secretary of Energy has approved publication of this proposed 
rule.

List of Subjects

10 CFR Part 429

    Confidential business information, Energy conservation, Household 
appliances, Imports, Reporting and recordkeeping requirements.

10 CFR Part 430

    Administrative practice and procedure, Confidential business 
information, Energy conservation, Household appliances, Imports, 
Incorporation by reference, Intergovernmental relations, Small 
businesses.

    Issued in Washington, DC, on November 26, 2014.
Kathleen B. Hogan,
Deputy Assistant Secretary for Energy Efficiency, Energy Efficiency and 
Renewable Energy.
    For the reasons stated in the preamble, DOE is proposing to amend 
parts 429 and 430 of Chapter II of Title 10, Code of Federal 
Regulations as set forth below:

PART 429--CERTIFICATION, COMPLIANCE, AND ENFORCEMENT FOR CONSUMER 
PRODUCTS AND COMMERCIAL AND INDUSTRIAL EQUIPMENT

0
1. The authority citation for part 429 continues to read as follows:

    Authority:  42 U.S.C. 6291-6317.

0
2. Amend Sec.  429.14 by:
0
a. Revising the section heading and paragraph (a)(3); and
0
b. Adding paragraphs (c) and (d).
    The revision and additions read as follows:


Sec.  429.14  Consumer refrigerators, refrigerator-freezers and 
freezers.

    (a) * * *
    (3) The value of total refrigerated volume of a basic model 
reported in accordance with paragraph (b)(2) of this section shall be 
the mean of the total refrigerated volumes measured for each tested 
unit of the basic model or the total refrigerated volume of the basic 
model as calculated in accordance with Sec.  429.72(c). The value of 
adjusted total volume of a basic model reported in accordance with 
paragraph (b)(2) of this section shall be the mean of the adjusted 
total volumes measured for each tested unit of the basic model or the 
adjusted total volume of the basic model as calculated in accordance 
with Sec.  429.72(c).
* * * * *
    (c) Rounding requirements for representative values, including 
certified and rated values.
    (1) The represented value of annual energy use must be rounded to 
the nearest kilowatt hour per year.
    (2) The represented value of total refrigerated volume must be 
rounded to the nearest 0.1 cubic foot.
    (3) The represented value of adjusted total volume must be rounded 
to the nearest 0.1 cubic foot.
    (d) Product category determination. Each basic model shall be 
certified according to the appropriate product category as defined in 
Sec.  430.2 based on compartment volumes and compartment temperatures.
    (1) Compartment volumes used to determine product category shall be 
measured according to the provisions in section 5.3 of appendix A of 
subpart B of part 430 of this chapter for refrigerators and 
refrigerator-freezers and section 5.3 of appendix B of subpart B of 
part 430 of this chapter for freezers; and
    (2) Compartment temperatures used to determine product category 
shall be measured according to the provisions section 5.1 of appendix A 
of subpart B of part 430 of this chapter for refrigerators and 
refrigerator-freezers and section 5.1 of appendix B of subpart B of 
part 430 of this chapter for freezers, except that the compartment 
temperatures shall be measured with an ambient temperature of 
72.0<plus-minus>1.0 degrees Fahrenheit (22.2<plus-minus>0.6 degrees 
Celsius).
0
3. Add Sec.  429.61 to read as follows:


Sec.  429.61  Miscellaneous refrigeration products.

    (a) Sampling plan for selection of units for testing.
    (1) The requirements of Sec.  429.11 are applicable to 
miscellaneous refrigeration products; and
    (2) For each basic model of miscellaneous refrigeration product, a 
sample of sufficient size shall be randomly selected and tested to 
ensure that--
    (i) Any represented value of estimated annual operating cost, 
energy

[[Page 74932]]

consumption, or other measure of energy consumption of a basic model 
for which consumers would favor lower values shall be greater than or 
equal to the higher of:
    (A) The mean of the sample, where:
    [GRAPHIC] [TIFF OMITTED] TP16DE14.005
    

and, x is the sample mean; n is the number of samples; and 
x<INF>i</INF> is the i<SUP>th</SUP> sample;

or
    (B) The upper 95 percent confidence limit (UCL) of the true mean 
divided by 1.10, where:
[GRAPHIC] [TIFF OMITTED] TP16DE14.006


And x is the sample mean; s is the sample standard deviation; n is the 
number of samples; and t<INF>0.95</INF> is the t statistic for a 95% 
one-tailed confidence interval with n-1 degrees of freedom (from 
appendix A of subpart B of part 430 of this chapter).

and
    (ii) Any represented value of the energy factor or other measure of 
energy consumption of a basic model for which consumers would favor 
higher values shall be less than or equal to the lower of:
    (A) The mean of the sample, where:
    [GRAPHIC] [TIFF OMITTED] TP16DE14.007
    

and, x is the sample mean; n is the number of samples; and 
x<INF>i</INF> is the i<SUP>th</SUP> sample;

or
    (B) The lower 95 percent confidence limit (LCL) of the true mean 
divided by 0.90, where:
[GRAPHIC] [TIFF OMITTED] TP16DE14.008


And x is the sample mean; s is the sample standard deviation; n is the 
number of samples; and t<INF>0.95</INF> is the t statistic for a 95% 
one-tailed confidence interval with n-1 degrees of freedom (from 
appendix A of subpart B of part 430 of this chapter).
    (3) The value of total refrigerated volume of a basic model 
reported in accordance with paragraph (b)(2) of this section shall be 
the mean of the total refrigerated volumes measured for each tested 
unit of the basic model or the total refrigerated volume of the basic 
model as calculated in accordance with Sec.  429.72(d). The value of 
adjusted total volume of a basic model reported in accordance with 
paragraph (b)(2) of this section shall be the mean of the adjusted 
total volumes measured for each tested unit of the basic model or the 
adjusted total volume of the basic model as calculated in accordance 
with Sec.  429.72(d).
    (b) Certification reports.
    (1) The requirements of Sec.  429.12 are applicable to 
miscellaneous refrigeration products; and
    (2) Pursuant to Sec.  429.12(b)(13), a certification report shall 
include the following public product-specific information:
    (i) For cooled cabinets, hybrid refrigeration products, and non-
compressor refrigerators: the annual energy use in kilowatt hours per 
year (kWh/yr); the total refrigerated volume in cubic feet (cu ft) and 
the total adjusted volume in cubic feet (cu ft).
    (ii) For non-compressor refrigerators and hybrid non-compressor 
refrigerators, the cold-setting fresh food compartment temperature 
average calculated for tests used for certification, if this value is 
greater than 39 [deg]F.
    (iii) For ice makers: The annual energy use in kilowatt-hours per 
year (kWh/yr), the harvest rate in pounds of ice per day (lb/day), and, 
for continuous-type ice makers, the ice hardness (as defined in section 
5 of appendix BB to subpart B of part 430 of this chapter) used to 
calculate the energy use.
    (3) Pursuant to Sec.  429.12(b)(13), a certification report must 
include the following additional product-specific information for 
cooled cabinets, hybrid refrigeration products, and non-compressor 
refrigerators: Whether the basic model has variable defrost control (in 
which case, manufacturers must also report the values, if any, of 
CT<INF>L</INF> and CT<INF>M</INF> (For an example, see section 5.2.1.3 
in appendix A to subpart B of part 430 of this chapter.) used in the 
calculation of energy consumption), whether the basic model has 
variable anti-sweat heater control (in which case, manufacturers must 
also report the values of heater Watts at the ten humidity levels 5%, 
15%, through 95% used to calculate the variable anti-sweat heater 
``Correction Factor''), and whether testing has been conducted with 
modifications to the standard temperature sensor locations specified by 
the figures referenced in section 5.1 of appendices A and B to subpart 
B of part 430 of this chapter.
    (c) Rounding requirements for representative values, including 
certified and rated values.
    (1) The represented value of annual energy use must be rounded to 
the nearest kilowatt hour per year.
    (2) The represented value of total refrigerated volume must be 
rounded to the nearest 0.1 cubic foot.
    (3) The represented value of adjusted total volume must be rounded 
to the nearest 0.1 cubic foot.
    (4) The represented value of cold-setting fresh food compartment 
temperature must be rounded to the nearest 0.1 degree Fahrenheit.
    (5) The represented value of harvest rate must be rounded to the 
nearest 0.1 pound of ice per day.
    (6) The represented value of ice hardness (as defined in section 5 
of appendix BB to subpart B of part 430 of this chapter) must be 
rounded to the nearest 0.01.
    (d) Product category determination. Each basic model for 
miscellaneous refrigeration products other than ice makers shall be 
certified according to the appropriate product category as defined in 
Sec.  430.2 based on compartment volumes and compartment temperatures.
    (1) Compartment volumes used to determine product category shall be 
measured according to the provisions in section 5.3 of appendix A to 
subpart B of part 430 of this chapter; and
    (2) Compartment temperatures used to determine product category 
shall be measured according to the provisions section 5.1 of appendix A 
to subpart B of part 430 of this chapter, except that the compartment 
temperatures shall be measured with an ambient temperature of 72.0 
<plus-minus> 1.0 degrees Fahrenheit (22.2 <plus-minus> 0.6 degrees 
Celsius).
0
4. Amend Sec.  429.72 by adding paragraph (d) to read as follows:


Sec.  429.72  Alternative methods for determining non-energy ratings.

* * * * *
    (d) Miscellaneous refrigeration products. The total refrigerated 
volume of a miscellaneous refrigeration product basic model may be 
determined by performing a calculation of the volume based upon 
computer-aided design (CAD) models of the basic model in lieu of 
physical measurements of a production unit of the basic model. Any 
value of total adjusted volume of a basic model reported to DOE in a 
certification of compliance in accordance with Sec.  429.61(b)(2) must 
be calculated using the CAD-derived volume(s) and the applicable 
provisions in the test procedures in part 430 of this chapter for 
measuring volume. The calculated value must be within two percent, or 
0.5 cubic feet (0.2 cubic feet for products with total refrigerated 
volume less than

[[Page 74933]]

7.75 cubic feet (220 liters)), whichever is greater, of the volume of a 
production unit of the basic model measured in accordance with the 
applicable test procedure in part 430 of this chapter.
0
5. Amend Sec.  429.134 by
0
a. Revising paragraph (b)(1)(ii)(B); and
0
b. Adding paragraph (c).
    The addition and revision reads as follows:


Sec.  429.134  Product-specific enforcement provisions.

* * * * *
    (b) * * *
    (1) * * *
    (ii) * * *
    (B) If the certified total refrigerated volume is found to be 
invalid, the average measured adjusted total volume, rounded to the 
nearest 0.1 cubic foot, will serve as the basis for calculation of 
maximum allowed energy use for the tested basic model.
* * * * *
    (c) Miscellaneous refrigeration products--
    (1) Verification of total refrigerated volume. For all 
miscellaneous refrigeration products except ice makers, the total 
refrigerated volume of the basic model will be measured pursuant to the 
test requirements of part 430 of this chapter for each unit tested. The 
results of the measurement(s) will be averaged and compared to the 
value of total refrigerated volume certified by the manufacturer. The 
certified total refrigerated volume will be considered valid only if
    (i) The measurement is within two percent, or 0.5 cubic feet (0.2 
cubic feet for products with total refrigerated volume less than 7.75 
cubic feet (220 liters)), whichever is greater, of the certified total 
refrigerated volume, or
    (ii) The measurement is greater than the certified total 
refrigerated volume.
    (A) If the certified total refrigerated volume is found to be 
valid, the certified adjusted total volume will be used as the basis 
for calculating the maximum allowed energy use for the tested basic 
model.
    (B) If the certified total refrigerated volume is found to be 
invalid, the average measured adjusted total volume, rounded to the 
nearest 0.1 cubic foot, will serve as the basis for calculating the 
maximum allowed energy use for the tested basic model.
    (2) For all miscellaneous refrigeration products except ice makers, 
test for models with two compartments, each having its own user-
operable temperature control. The test described in section 3.3 of the 
applicable test procedure in appendix A to subpart B part 430 of this 
chapter shall be used for all units of a tested basic model before DOE 
makes a determination of noncompliance with respect to the basic model.

PART 430--ENERGY CONSERVATION PROGRAM FOR CONSUMER PRODUCTS

0
6. The authority citation for part 430 continues to read as follows:

    Authority:  42 U.S.C. 6291-6309; 28 U.S.C. 2461 note.

0
7. Amend Sec.  430.2 by:
0
a. Adding, in alphabetical order, definitions for ``all-refrigerator,'' 
``batch-type ice maker,'' ``consumer refrigeration product,'' 
``continuous-type ice maker,'' ``cooled cabinet,'' ``cooled-storage ice 
maker,'' ``hybrid all-refrigerator,'' ``hybrid freezer,'' ``hybrid non-
compressor all-refrigerator,'' ``hybrid non-compressor refrigerator,'' 
``hybrid refrigerator,'' ``hybrid refrigerator-freezer,'' ``hybrid 
refrigeration product,'' ``ice maker,'' ``miscellaneous refrigeration 
product,'' ``non-compressor all-refrigerator,'' ``non-compressor cooled 
cabinet,'' ``non-compressor refrigerator,'' ``portable ice maker,'' and 
``uncooled-storage ice maker;''
0
b. Revising the definitions for ``freezer,'' ``refrigerator,'' and 
``refrigerator-freezer;'' and
0
c. Removing the definitions for ``electric refrigerator'' and 
``electric refrigerator-freezer.''
    The additions and revisions read as follows:


Sec.  430.2  Definitions.

* * * * *
    All-refrigerator means a refrigerator that does not include a 
compartment capable of maintaining compartment temperatures below 
32[emsp14][deg]F (0 [deg]C) as determined according to the provisions 
in Sec.  429.14(c)(2). It may include a compartment of 0.50 cubic-foot 
capacity (14.2 liters) or less for the freezing and storage of ice.
* * * * *
    Batch-type ice maker means an ice maker that has alternating 
freezing and harvesting periods.
* * * * *
    Consumer refrigeration product means a refrigerator, refrigerator-
freezer, freezer, or miscellaneous refrigeration product as defined in 
this section.
    Continuous-type ice maker means an ice maker that continually and 
simultaneously freezes and harvests ice.
* * * * *
    Cooled cabinet means a cabinet that has a source of refrigeration 
requiring electric energy input only and is capable of maintaining 
compartment temperatures either (a) no lower than 39[emsp14][deg]F (3.9 
[deg]C), or (b) in a range that extends no lower than 37[emsp14][deg]F 
(2.8 [deg]C) but at least as high as 60[emsp14][deg]F (15.6 [deg]C) as 
determined according to the provisions in Sec.  429.61(c)(2).
    Cooled-storage ice maker means an ice maker that maintains ice 
storage bin temperatures below 32[emsp14][deg]F (0 [deg]C).
* * * * *
    Freezer means a cabinet that has a source of refrigeration that 
requires single phase alternating current electric energy input only 
and is capable of maintaining compartment temperatures of 
0[emsp14][deg]F (-17.8 [deg]C) or below as determined according to the 
provisions in Sec.  429.14(c)(2). It does not include any refrigerated 
cabinet that consists solely of an automatic ice maker and an ice 
storage bin arranged so that operation of the automatic icemaker fills 
the bin to its capacity. A freezer may include one or more cellar 
compartments, as defined in Appendix B of subpart B of this part, whose 
combined refrigerated volume is less than half the total refrigerated 
volume of the product. However, the term does not include any product:
    (1) With one or more permanently open compartments;
    (2) Which does not include a compressor and condenser unit as an 
integral part of the cabinet assembly; or
    (3) That is certified under one or more of the following commercial 
standards:
    (i) ANSI/NSF 7-2009 International Standard for Food Equipment--
Commercial Refrigerators and Freezers; or
    (ii) ANSI/UL 471-2006 UL Standard for Commercial Refrigerators and 
Freezers.
* * * * *
    Hybrid all-refrigerator means a hybrid refrigerator that does not 
include a compartment capable of maintaining compartment temperatures 
below 32[emsp14][deg]F (0 [deg]C) as determined according to the 
provisions in Sec.  429.61(c)(2). It may include a compartment of 0.50 
cubic-foot capacity (14.2 liters) or less for the freezing and storage 
of ice.
    Hybrid freezer means a cabinet that has a source of refrigeration 
that includes a compressor and condenser unit and requires electric 
energy input only, and consists of two or more compartments where:
    (1) At least half but not all of its refrigerated volume is 
comprised of one or more cellar compartments, as defined in Appendix A 
of subpart B of this part, and
    (2) The remaining compartment(s) are capable of maintaining 
compartment temperatures at 0[emsp14][deg]F (-17.8 [deg]C) or

[[Page 74934]]

below as determined according to the provisions in Sec.  429.61(c)(2).
    Hybrid non-compressor all-refrigerator means a hybrid non-
compressor refrigerator that does not include a compartment capable of 
maintaining compartment temperatures below 32[emsp14][deg]F (0 [deg]C) 
as determined according to the provisions in Sec.  429.61(c)(2). It may 
include a compartment of 0.50 cubic-foot capacity (14.2 liters) or less 
for the freezing and storage of ice.
    Hybrid non-compressor refrigerator means a non-compressor 
refrigerator with at least half of its refrigerated volume composed of 
one or more cellar compartments, as defined in Appendix A of subpart B 
of this part.
    Hybrid refrigerator means a cabinet that has a source of 
refrigeration that includes a compressor and condenser unit and 
requires electric energy input only, and consists of two or more 
compartments where:
    (1) At least half but not all of its refrigerated volume is 
comprised of one or more cellar compartments, as defined in Appendix A 
of subpart B of this part,
    (2) At least one of the remaining compartments is capable of 
maintaining compartment temperatures above 32[emsp14][deg]F (0 [deg]C) 
and below 39[emsp14][deg]F (3.9 [deg]C) as determined according to 
Sec.  429.61(c)(2),
    (3) The cabinet may also include a compartment capable of 
maintaining compartment temperatures below 32[emsp14][deg]F (0 [deg]C) 
as determined according to Sec.  429.61(c)(2), but
    (4) It does not provide a separate low temperature compartment 
capable of maintaining compartment temperatures below 8[emsp14][deg]F 
(-13.3 [deg]C) as determined according to Sec.  429.61(c)(2).
    Hybrid refrigerator-freezer means a cabinet that has a source of 
refrigeration that includes a compressor and condenser unit and 
requires electric energy input only, and consists of three or more 
compartments where:
    (1) At least half but not all of its refrigerated volume is 
comprised of one or more cellar compartments, as defined in Appendix A 
of subpart B of this part,
    (2) At least one of the remaining compartments is capable of 
maintaining compartment temperatures above 32[emsp14][deg]F (0 [deg]C) 
and below 39[emsp14][deg]F (3.9 [deg]C) as determined according Sec.  
429.61(c)(2), and
    (3) At least one other compartment is capable of maintaining 
compartment temperatures below 8[emsp14][deg]F (-13.3 [deg]C) and may 
be adjusted by the user to a temperature of 0[emsp14][deg]F (-17.8 
[deg]C) or below as determined according to Sec.  429.61(c)(2).
    Hybrid refrigeration product means a hybrid refrigerator, hybrid 
refrigerator-freezer, hybrid freezer, or hybrid non-compressor 
refrigerator as defined in this section.
    Ice maker means a consumer product other than a refrigerator, 
refrigerator-freezer, freezer, hybrid refrigeration product, non-
compressor refrigerator, or cooled cabinet designed to automatically 
produce and harvest ice, but excluding any basic model that is 
certified under NSF/ANSI 12-2012 Automatic Ice Making Equipment. Such a 
product may also include a means for storing ice, dispensing ice, or 
storing and dispensing ice.
* * * * *
    Miscellaneous refrigeration product means a consumer refrigeration 
product other than a refrigerator, refrigerator-freezer, or freezer, 
which includes hybrid refrigeration products, cooled cabinets, non-
compressor refrigerators, and ice makers.
* * * * *
    Non-compressor all-refrigerator means a non-compressor refrigerator 
that is not a hybrid non-compressor refrigerator and that does not 
include a compartment capable of maintaining compartment temperatures 
below 32[emsp14][deg]F (0 [deg]C) as determined according to Sec.  
429.61(c)(2). It may include a compartment of 0.50 cubic-foot capacity 
(14.2 liters) or less for the freezing and storage of ice.
    Non-compressor cooled cabinet means a cooled cabinet that has a 
source of refrigeration that does not include a compressor and 
condenser unit.
    Non-compressor refrigerator means a cabinet that has a source of 
refrigeration that does not include a compressor and condenser unit, 
requires electric energy input only, and is capable of maintaining 
compartment temperatures above 32[emsp14][deg]F (0 [deg]C) and below 
39[emsp14][deg]F (3.9 [deg]C) as determined according to Sec.  
429.61(c)(2). A non-compressor refrigerator may include a compartment 
capable of maintaining compartment temperatures below 32[emsp14][deg]F 
(0 [deg]C) as determined according to Sec.  429.61(c)(2). A non-
compressor refrigerator also may include one or more cellar 
compartments, as defined in Appendix A of subpart B of this part, if 
the combined refrigerated volume of these compartments is less than 
half the total refrigerated volume of the product.
* * * * *
    Portable ice maker means an ice maker that does not require 
connection to a household water supply for operation and is operable 
using one or more on-board reservoirs that must be manually supplied 
with water.
* * * * *
    Refrigerator means a cabinet that has a source of refrigeration 
that requires single phase alternating current electric energy input 
only and is capable of maintaining compartment temperatures above 
32[emsp14][deg]F (0 [deg]C) and below 39[emsp14][deg]F (3.9 [deg]C) as 
determined according to Sec.  429.14(c)(2). A refrigerator may include 
a compartment capable of maintaining compartment temperatures below 
32[emsp14][deg]F (0 [deg]C), but does not provide a separate low 
temperature compartment capable of maintaining compartment temperatures 
below 8[emsp14][deg]F (-13.3 [deg]C) as determined according to Sec.  
429.14(c)(2). A refrigerator also may include one or more cellar 
compartments, as defined in Appendix A of subpart B of this part, if 
the combined refrigerated volume of the cellar compartment(s) is less 
than half the total refrigerated volume of the product. However, the 
term does not include any product:
    (1) With one or more permanently open compartments;
    (2) Which does not include a compressor and condenser unit as an 
integral part of the cabinet assembly; or
    (3) That is certified under one or more of the following commercial 
standards:
    (i) ANSI/NSF 7-2009 International Standard for Food Equipment--
Commercial Refrigerators and Freezers; or
    (ii) ANSI/UL 471-2006 UL Standard for Commercial Refrigerators and 
Freezers.
    Refrigerator-freezer means a cabinet that has a source of 
refrigeration that requires single phase alternating current electric 
energy input only and consists of two or more compartments where at 
least one of the compartments is capable of maintaining compartment 
temperatures above 32[emsp14][deg]F (0 [deg]C) and below 
39[emsp14][deg]F (3.9 [deg]C) as determined according to Sec.  
429.14(c)(2), and at least one other compartment is capable of 
maintaining compartment temperatures below 8[emsp14][deg]F (-13.3 
[deg]C) and may be adjusted by the user to a temperature of 
0[emsp14][deg]F (-17.8 [deg]C) or below as determined according to 
Sec.  429.14(c)(2). A refrigerator-freezer may include one or more 
cellar compartments, as defined in Appendix A of subpart B of this 
part, if the total refrigerated volume of the cellar compartment(s) is 
less than half the total refrigerated volume of the product. However, 
the term does not include any cabinet:
    (1) With one or more permanently open compartments;
    (2) Which does not include a compressor and condenser unit as an 
integral part of the cabinet assembly; or
    (3) That is certified under one or more of the following commercial 
standards:

[[Page 74935]]

    (i) ANSI/NSF 7-2009 International Standard for Food Equipment-
Commercial Refrigerators and Freezers; or
    (ii) ANSI/UL 471-2006 UL Standard for Commercial Refrigerators and 
Freezers.
* * * * *
    Uncooled-storage ice maker means an ice maker that does not 
maintain ice storage bin temperatures below 32[emsp14][deg]F.
0
8. Amend Sec.  430.3 by:
0
a. Revising introductory paragraph (f) and paragraph (h)(6);
0
b. Removing paragraph (f)(1);
0
c. Redesignating paragraph (f)(2) as (f)(1);
0
d. Adding paragraph (f)(2); and
0
e. Removing and reserving paragraph (h)(5).
    The revisions and additions read as follows:


Sec.  430.3  Materials incorporated by reference.

* * * * *
    (f) ASHRAE. American Society of Heating, Refrigerating and Air-
Conditioning Engineers, Inc., 1791 Tullie Circle NE., Atlanta, GA 
30329, (404) 636-8400, <a href="/cdn-cgi/l/email-protection#0362706b7162664362706b7162662d6c7164"><span class="__cf_email__" data-cfemail="2243514a5043476243514a5043470c4d5045">[email protected]</span></a>, or http://www.ashrae.org.
* * * * *
    (2) ANSI/ASHRAE Standard 29-2009, Method of Testing Automatic Ice 
Makers, (including Errata Sheets issued April 8, 2010 and April 21, 
2010), approved January 28, 2009; IBR approved for appendix BB of 
subpart B.
* * * * *
    (h) * * *
    (6) AHAM HRF-1-2008, (``HRF-1-2008''), Association of Home 
Appliance Manufacturers, Energy and Internal Volume of Refrigerating 
Appliances (2008), including Errata to Energy and Internal Volume of 
Refrigerating Appliances, Correction Sheet issued November 17, 2009, 
IBR approved for appendices A, B, and BB to subpart B.
* * * * *
0
9. Amend Sec.  430.23 by:
0
a. Revising paragraphs (a) and (b); and
0
b. Adding paragraphs (dd) and (ee).
    The revisions and additions read as follows:


Sec.  430.23  Test procedures for the measurement of energy and water 
consumption.

    (a) Refrigerators and refrigerator-freezers. (1) The estimated 
annual operating cost for models without an anti-sweat heater switch 
shall be the product of the following three factors, the resulting 
product then being rounded off to the nearest dollar per year:
    (i) The representative average-use cycle of 365 cycles per year;
    (ii) The average per-cycle energy consumption for the standard 
cycle in kilowatt-hours per cycle, determined according to section 6.2 
of appendix A of this subpart; and
    (iii) The representative average unit cost of electricity in 
dollars per kilowatt-hour as provided by the Secretary.
    (2) The estimated annual operating cost for models with an anti-
sweat heater switch shall be the product of the following three 
factors, the resulting product then being rounded off to the nearest 
dollar per year:
    (i) The representative average-use cycle of 365 cycles per year;
    (ii) Half the sum of the average per-cycle energy consumption for 
the standard cycle and the average per-cycle energy consumption for a 
test cycle type with the anti-sweat heater switch in the position set 
at the factory just before shipping, each in kilowatt-hours per cycle, 
determined according to section 6.2 of appendix A of this subpart; and
    (iii) The representative average unit cost of electricity in 
dollars per kilowatt-hour as provided by the Secretary.
    (3) The estimated annual operating cost for any other specified 
cycle type shall be the product of the following three factors, the 
resulting product then being rounded off to the nearest dollar per 
year:
    (i) The representative average-use cycle of 365 cycles per year;
    (ii) The average per-cycle energy consumption for the specified 
cycle type, determined according to section 6.2 of appendix A of this 
subpart; and
    (iii) The representative average unit cost of electricity in 
dollars per kilowatt-hour as provided by the Secretary.
    (4) The energy factor, expressed in cubic feet per kilowatt-hour 
per cycle, shall be:
    (i) For models without an anti-sweat heater switch, the quotient 
of:
    (A) The adjusted total volume in cubic feet, determined according 
to section 6.1 of appendix A of this subpart, divided by--
    (B) The average per-cycle energy consumption for the standard cycle 
in kilowatt-hours per cycle, determined according to section 6.2 of 
appendix A of this subpart, the resulting quotient then being rounded 
off to the second decimal place; and
    (ii) For models having an anti-sweat heater switch, the quotient 
of:
    (A) The adjusted total volume in cubic feet, determined according 
to section 6.1 of appendix A of this subpart, divided by--
    (B) Half the sum of the average per-cycle energy consumption for 
the standard cycle and the average per-cycle energy consumption for a 
test cycle type with the anti-sweat heater switch in the position set 
at the factory just before shipping, each in kilowatt-hours per cycle, 
determined according to section 6.2 of appendix A of this subpart, the 
resulting quotient then being rounded off to the second decimal place.
    (5) The annual energy use, expressed in kilowatt-hours per year, 
shall be the following, rounded to the nearest kilowatt-hour per year:
    (i) For models without an anti-sweat heater switch, the 
representative average use cycle of 365 cycles per year multiplied by 
the average per-cycle energy consumption for the standard cycle in 
kilowatt-hours per cycle, determined according to section 6.2 of 
appendix A of this subpart, and
    (ii) For models having an anti-sweat heater switch, the 
representative average use cycle of 365 cycles per year multiplied by 
half the sum of the average per-cycle energy consumption for the 
standard cycle and the average per-cycle energy consumption for a test 
cycle type with the anti-sweat heater switch in the position set at the 
factory just before shipping, each in kilowatt-hours per cycle, 
determined according to section 6.2 of appendix A of this subpart.
    (6) Other useful measures of energy consumption shall be those 
measures of energy consumption that the Secretary determines are likely 
to assist consumers in making purchasing decisions which are derived 
from the application of appendix A of this subpart.
    (7) The following principles of interpretation shall be applied to 
the test procedure. The intent of the energy test procedure is to 
simulate typical room conditions (72[emsp14][deg]F (22.2 [deg]C)) with 
door openings, by testing at 90[emsp14][deg]F (32.2 [deg]C) without 
door openings. Except for operating characteristics that are affected 
by ambient temperature (for example, compressor percent run time), the 
unit, when tested under this test procedure, shall operate in a manner 
equivalent to the unit's operation while in typical room conditions.
    (i) The energy used by the unit shall be calculated when a 
calculation is provided by the test procedure. Energy consuming 
components that operate in typical room conditions (including as a 
result of door openings, or a function of humidity), and that are not 
exempted by this test procedure, shall operate in an equivalent manner 
during energy testing under this test procedure, or be accounted for by 
all calculations as provided for in the test procedure.
    Examples:

[[Page 74936]]

    (A) Energy saving features that are designed to operate when there 
are no door openings for long periods of time shall not be functional 
during the energy test.
    (B) The defrost heater shall neither function nor turn off 
differently during the energy test than it would when in typical room 
conditions. Also, the product shall not recover differently during the 
defrost recovery period than it would in typical room conditions.
    (C) Electric heaters that would normally operate at typical room 
conditions with door openings shall also operate during the energy 
test.
    (D) Energy used during adaptive defrost shall continue to be 
measured and adjusted per the calculation provided for in this test 
procedure.
    (ii) DOE recognizes that there may be situations that the test 
procedures do not completely address. In such cases, a manufacturer 
must obtain a waiver in accordance with the relevant provisions of 10 
CFR part 430 if:
    (A) A product contains energy consuming components that operate 
differently during the prescribed testing than they would during 
representative average consumer use; and
    (B) Applying the prescribed test to that product would evaluate it 
in a manner that is unrepresentative of its true energy consumption 
(thereby providing materially inaccurate comparative data).
    (b) Freezers. (1) The estimated annual operating cost for freezers 
without an anti-sweat heater switch shall be the product of the 
following three factors, the resulting product then being rounded off 
to the nearest dollar per year:
    (i) The representative average-use cycle of 365 cycles per year;
    (ii) The average per-cycle energy consumption for the standard 
cycle in kilowatt-hours per cycle, determined according to section 6.2 
of appendix B of this subpart; and
    (iii) The representative average unit cost of electricity in 
dollars per kilowatt-hour as provided by the Secretary.
    (2) The estimated annual operating cost for freezers with an anti-
sweat heater switch shall be the product of the following three 
factors, the resulting product then being rounded off to the nearest 
dollar per year:
    (i) The representative average-use cycle of 365 cycles per year;
    (ii) Half the sum of the average per-cycle energy consumption for 
the standard cycle and the average per-cycle energy consumption for a 
test cycle type with the anti-sweat heater switch in the position set 
at the factory just before shipping, each in kilowatt-hours per cycle, 
determined according to section 6.2 of appendix B of this subpart; and
    (iii) The representative average unit cost of electricity in 
dollars per kilowatt-hour as provided by the Secretary.
    (3) The estimated annual operating cost for any other specified 
cycle type for freezers shall be the product of the following three 
factors, the resulting product then being rounded off to the nearest 
dollar per year:
    (i) The representative average-use cycle of 365 cycles per year;
    (ii) The average per-cycle energy consumption for the specified 
cycle type, determined according to section 6.2 of appendix B of this 
subpart; and
    (iii) The representative average unit cost of electricity in 
dollars per kilowatt-hour as provided by the Secretary.
    (4) The energy factor for freezers, expressed in cubic feet per 
kilowatt-hour per cycle, shall be:
    (i) For freezers not having an anti-sweat heater switch, the 
quotient of:
    (A) The adjusted net refrigerated volume in cubic feet, determined 
according to section 6.1 of appendix B of this subpart, divided by--
    (B) The average per-cycle energy consumption for the standard cycle 
in kilowatt-hours per cycle, determined according to 6.2 of appendix B 
of this subpart, the resulting quotient then being rounded off to the 
second decimal place; and
    (ii) For freezers having an anti-sweat heater switch, the quotient 
of:
    (A) The adjusted net refrigerated volume in cubic feet, determined 
according to 6.1 of appendix B of this subpart, divided by--
    (B) Half the sum of the average per-cycle energy consumption for 
the standard cycle and the average per-cycle energy consumption for a 
test cycle type with the anti-sweat heater switch in the position set 
at the factory just before shipping, each in kilowatt-hours per cycle, 
determined according to section 6.2 of appendix B of this subpart, the 
resulting quotient then being rounded off to the second decimal place.
    (5) The annual energy use of all freezers, expressed in kilowatt-
hours per year, shall be the following, rounded to the nearest 
kilowatt-hour per year:
    (i) For freezers not having an anti-sweat heater switch, the 
representative average use cycle of 365 cycles per year multiplied by 
the average per-cycle energy consumption for the standard cycle in 
kilowatt-hours per cycle, determined according to section 6.2 of 
appendix B of this subpart, and
    (ii) For freezers having an anti-sweat heater switch, the 
representative average use cycle of 365 cycles per year multiplied by 
half the sum of the average per-cycle energy consumption for the 
standard cycle and the average per-cycle energy consumption for a test 
cycle type with the anti-sweat heater switch in the position set at the 
factory just before shipping, each in kilowatt-hours per cycle, 
determined according to section 6.2 of appendix B of this subpart.
    (6) Other useful measures of energy consumption for freezers shall 
be those measures the Secretary determines are likely to assist 
consumers in making purchasing decisions and are derived from the 
application of appendix B of this subpart.
    (7) The following principles of interpretation should be applied to 
the test procedure. The intent of the energy test procedure is to 
simulate typical room conditions (72[emsp14][deg]F (22.2 [deg]C)) with 
door openings by testing at 90[emsp14][deg]F (32.2 [deg]C) without door 
openings. Except for operating characteristics that are affected by 
ambient temperature (for example, compressor percent run time), the 
unit, when tested under this test procedure, shall operate in a manner 
equivalent to the unit's operation while in typical room conditions.
    (i) The energy used by the unit shall be calculated when a 
calculation is provided by the test procedure. Energy consuming 
components that operate in typical room conditions (including as a 
result of door openings, or a function of humidity), and that are not 
exempted by this test procedure, shall operate in an equivalent manner 
during energy testing under this test procedure, or be accounted for by 
all calculations as provided for in the test procedure. Examples:
    (A) Energy saving features that are designed to operate when there 
are no door openings for long periods of time shall not be functional 
during the energy test.
    (B) The defrost heater shall neither function nor turn off 
differently during the energy test than it would when in typical room 
conditions. Also, the product shall not recover differently during the 
defrost recovery period than it would in typical room conditions.
    (C) Electric heaters that would normally operate at typical room 
conditions with door openings shall also operate during the energy 
test.
    (D) Energy used during adaptive defrost shall continue to be 
measured and adjusted per the calculation provided for in this test 
procedure.
    (ii) DOE recognizes that there may be situations that the test 
procedures do

[[Page 74937]]

not completely address. In such cases, a manufacturer must obtain a 
waiver in accordance with the relevant provisions of 10 CFR part 430 
if:
    (A) A product contains energy consuming components that operate 
differently during the prescribed testing than they would during 
representative average consumer use and
    (B) Applying the prescribed test to that product would evaluate it 
in a manner that is unrepresentative of its true energy consumption 
(thereby providing materially inaccurate comparative data).
* * * * *
    (dd) Cooled cabinets, non-compressor refrigerators, and hybrid 
refrigeration products.
    (1) The estimated annual operating cost for models without an anti-
sweat heater switch shall be the product of the following three 
factors, the resulting product then being rounded off to the nearest 
dollar per year:
    (i) The representative average-use cycle of 365 cycles per year;
    (ii) The average per-cycle energy consumption for the standard 
cycle in kilowatt-hours per cycle, determined according to section 6.2 
of appendix A of this subpart; and
    (iii) The representative average unit cost of electricity in 
dollars per kilowatt-hour as provided by the Secretary.
    (2) The estimated annual operating cost for models with an anti-
sweat heater switch shall be the product of the following three 
factors, the resulting product then being rounded off to the nearest 
dollar per year:
    (i) The representative average-use cycle of 365 cycles per year;
    (ii) Half the sum of the average per-cycle energy consumption for 
the standard cycle and the average per-cycle energy consumption for a 
test cycle type with the anti-sweat heater switch in the position set 
at the factory just before shipping, each in kilowatt-hours per cycle, 
determined according to section 6.2 of appendix A of this subpart; and
    (iii) The representative average unit cost of electricity in 
dollars per kilowatt-hour as provided by the Secretary.
    (3) The estimated annual operating cost for any other specified 
cycle type shall be the product of the following three factors, the 
resulting product then being rounded off to the nearest dollar per 
year:
    (i) The representative average-use cycle of 365 cycles per year;
    (ii) The average per-cycle energy consumption for the specified 
cycle type, determined according to section 6.2 of appendix A to this 
subpart; and
    (iii) The representative average unit cost of electricity in 
dollars per kilowatt-hour as provided by the Secretary.
    (4) The energy factor, expressed in cubic feet per kilowatt-hour 
per cycle, shall be:
    (i) For models without an anti-sweat heater switch, the quotient 
of:
    (A) The adjusted total volume in cubic feet, determined according 
to section 6.1 of appendix A of this subpart, divided by--
    (B) The average per-cycle energy consumption for the standard cycle 
in kilowatt-hours per cycle, determined according to section 6.2 of 
appendix A of this subpart, the resulting quotient then being rounded 
off to the second decimal place; and
    (ii) For models having an anti-sweat heater switch, the quotient 
of:
    (A) The adjusted total volume in cubic feet, determined according 
to section 6.1 of appendix A of this subpart, divided by --
    (B) Half the sum of the average per-cycle energy consumption for 
the standard cycle and the average per-cycle energy consumption for a 
test cycle type with the anti-sweat heater switch in the position set 
at the factory just before shipping, each in kilowatt-hours per cycle, 
determined according to section 6.2 of appendix A of this subpart, the 
resulting quotient then being rounded off to the second decimal place.
    (5) The annual energy use, expressed in kilowatt-hours per year, 
shall be the following, rounded to the nearest kilowatt-hour per year:
    (i) For models without an anti-sweat heater switch, the 
representative average use cycle of 365 cycles per year multiplied by 
the average per-cycle energy consumption for the standard cycle in 
kilowatt-hours per cycle, determined according to 6.2 of appendix A of 
this subpart, and
    (ii) For models having an anti-sweat heater switch, the 
representative average use cycle of 365 cycles per year multiplied by 
half the sum of the average per-cycle energy consumption for the 
standard cycle and the average per-cycle energy consumption for a test 
cycle type with the anti-sweat heater switch in the position set at the 
factory just before shipping, each in kilowatt-hours per cycle, 
determined according to section 6.2 of appendix A of this subpart.
    (6) Other useful measures of energy consumption shall be those 
measures of energy consumption that the Secretary determines are likely 
to assist consumers in making purchasing decisions which are derived 
from the application of appendix A of this subpart.
    (7) The following principles of interpretation shall be applied to 
the test procedure. The intent of the energy test procedure is to 
simulate operation in typical room conditions (72[emsp14][deg]F (22.2 
[deg]C)) with door openings. For all products that are tested with 
90[emsp14][deg]F (32.2 [deg]C) ambient temperature without door 
openings, the higher ambient temperature is intended to represent the 
heat load associated with door openings. For all products that are 
tested with 72[emsp14][deg]F (22.2 [deg]C) ambient temperature without 
door openings, an adjustment factor is applied to the test results to 
account for the heat load associated with door openings. Except for 
operating characteristics that are affected by ambient temperature (for 
example, compressor percent run time), the unit, when tested under this 
test procedure, shall operate in a manner equivalent to the unit's 
operation while in typical room conditions.
    (i) The energy used by the unit shall be calculated when a 
calculation is provided by the test procedure. Energy consuming 
components that operate in typical room conditions (including as a 
result of door openings, or a function of humidity), and that are not 
exempted by this test procedure, shall operate in an equivalent manner 
during energy testing under this test procedure, or be accounted for by 
all calculations as provided for in the test procedure.
    Examples:
    (A) Energy saving features that are designed to operate when there 
are no door openings for long periods of time shall not be functional 
during the energy test.
    (B) The defrost heater shall neither function nor turn off 
differently during the energy test than it would when in typical room 
conditions. Also, the product shall not recover differently during the 
defrost recovery period than it would in typical room conditions.
    (C) Electric heaters that would normally operate at typical room 
conditions with door openings shall also operate during the energy 
test.
    (D) Energy used during adaptive defrost shall continue to be 
measured and adjusted per the calculation provided for in this test 
procedure.
    (ii) DOE recognizes that there may be situations that the test 
procedures do not completely address. In such cases, a manufacturer 
must obtain a waiver in accordance with the relevant provisions of 10 
CFR part 430 if:
    (A) A product contains energy consuming components that operate 
differently during the prescribed testing

[[Page 74938]]

than they would during representative average consumer use; and
    (B) Applying the prescribed test to that product would evaluate it 
in a manner that is unrepresentative of its true energy consumption 
(thereby providing materially inaccurate comparative data).
    (8) For non-compressor models, ``compressor'' and ``compressor 
cycles'' as used in appendix A of this subpart shall be interpreted to 
mean ``refrigeration system'' and ``refrigeration system cycles,'' 
respectively.
    (ee) Ice makers. (1) The annual energy use of ice makers, expressed 
in kilowatt-hours per year, shall be the product of the following two 
factors, rounded to the nearest kilowatt-hour per year:
    (i) 365 days per year; and
    (ii) The daily energy consumption in kilowatt-hours per day, 
determined according to section 6.3 of appendix BB of this subpart.

Appendix A--[Amended]

0
10. Amend appendix A to subpart B by:
0
a. Revising the heading and removing the introductory note; and
0
b. Revising sections 1. Definitions, 2. Test Conditions, 3. Test 
Control Settings, 5. Test Measurements, 6. Calculation of Derived 
Results from Test Measurements and 7. Test Procedure Waivers.
    The revisions read as follows:

Appendix A to Subpart B of Part 430--Uniform Test Method for Measuring 
the Energy Consumption of Refrigerators, Refrigerator-Freezers, and 
Miscellaneous Refrigeration Products Other Than Ice Makers

1. Definitions

    Section 3, Definitions, of HRF-1-2008 (incorporated by 
reference; see Sec.  430.3) applies to this test procedure, except 
that the term ``wine chiller'' means ``cooled cabinet'' as defined 
in Sec.  430.2 and the term ``wine chiller compartment'' means 
``cellar compartment'' as defined in this appendix.
    Anti-sweat heater means a device incorporated into the design of 
a product to prevent the accumulation of moisture on the exterior or 
interior surfaces of the cabinet.
    Anti-sweat heater switch means a user-controllable switch or 
user interface which modifies the activation or control of anti-
sweat heaters.
    AS/NZS 4474.1:2007 means Australian/New Zealand Standard 
4474.1:2007, Performance of household electrical appliances--
Refrigerating appliances, Part 1: Energy consumption and 
performance. Only sections of AS/NZS 4474.1:2007 (incorporated by 
reference; see Sec.  430.3) specifically referenced in this test 
procedure are part of this test procedure. In cases where there is a 
conflict, the language of the test procedure in this appendix takes 
precedence over AS/NZS 4474.1:2007.
    Automatic defrost means a system in which the defrost cycle is 
automatically initiated and terminated, with resumption of normal 
refrigeration at the conclusion of the defrost operation. The system 
automatically prevents the permanent formation of frost on all 
refrigerated surfaces.
    Automatic icemaker means a device that can be supplied with 
water without user intervention, either from a pressurized water 
supply system or by transfer from a water reservoir located inside 
the cabinet, that automatically produces, harvests, and stores ice 
in a storage bin and with means to automatically interrupt the 
harvesting operation when the ice storage bin is filled to a pre-
determined level.
    Cellar compartment means a refrigerated compartment within a 
consumer refrigeration product that is capable of maintaining 
compartment temperatures either (a) no lower than 39[emsp14][deg]F 
(3.9 [deg]C), or (b) in a range that extends no lower than 
37[emsp14][deg]F (2.8 [deg]C) but at least as high as 
60[emsp14][deg]F (15.6 [deg]C) as determined according to Sec.  
429.14(c)(2) or Sec.  429.61(c)(2).
    Compartment means either:
    (a) A space within a refrigeration product cabinet that is 
enclosed when all product doors are closed and that has no 
subdividing barriers that divide the space. A subdividing barrier is 
a solid (non-perforated) barrier that may contain thermal insulation 
and is sealed around all of its edges or has edge gaps insufficient 
to allow thermal convection transfer from one side to the other 
sufficient to equilibrate temperatures on the two sides; or
    (b) All of the enclosed spaces within a refrigeration product 
cabinet that provide the same type of storage, for instance fresh 
food, freezer, or cellar.
    Complete temperature cycle means a time period defined based 
upon the cycling of compartment temperature that starts when the 
compartment temperature is at a maximum and ends when the 
compartment temperature returns to an equivalent maximum (within 
0.5[emsp14][deg]F of the starting temperature), having in the 
interim fallen to a minimum and subsequently risen again to reach 
the second maximum. Alternatively, a complete temperature cycle can 
be defined to start when the compartment temperature is at a minimum 
and ends when the compartment temperature returns to an equivalent 
minimum (within 0.5[emsp14][deg]F of the starting temperature), 
having in the interim risen to a maximum and subsequently fallen 
again to reach the second minimum.
    Cycle means a 24-hour period for which the energy use of a 
product is calculated based on the consumer-activated compartment 
temperature controls being set to maintain the standardized 
temperatures (see section 3.2 of this appendix).
    Cycle type means the set of test conditions having the 
calculated effect of operating a product for a period of 24 hours, 
with the consumer-activated controls, other than those that control 
compartment temperatures, set to establish various operating 
characteristics.
    Defrost cycle type means a distinct sequence of control whose 
function is to remove frost and/or ice from a refrigerated surface. 
There may be variations in the defrost control sequence, such as the 
number of defrost heaters energized. Each such variation establishes 
a separate, distinct defrost cycle type. However, defrost achieved 
regularly during the compressor off-cycles by warming of the 
evaporator without active heat addition, although a form of 
automatic defrost, does not constitute a unique defrost cycle type 
for the purposes of identifying the test period in accordance with 
section 4 of this appendix.
    HRF-1-2008 means AHAM Standard HRF-1-2008, Association of Home 
Appliance Manufacturers, Energy and Internal Volume of Refrigerating 
Appliances (2008), including Errata to Energy and Internal Volume of 
Refrigerating Appliances, Correction Sheet issued November 17, 2009. 
Only sections of HRF-1-2008 (incorporated by reference; see Sec.  
430.3) specifically referenced in this test procedure are part of 
this test procedure. In cases where there is a conflict, the 
language of the test procedure in this appendix takes precedence 
over HRF-1-2008.
    Ice storage bin means a container in which ice can be stored.
    Long-time automatic defrost means an automatic defrost system 
whose successive defrost cycles are separated by 14 hours or more of 
compressor operating time.
    Multiple compressor product means a consumer refrigeration 
product with more than one compressor.
    Multiple refrigeration system product means a multiple 
compressor product or a miscellaneous refrigeration product with 
more than one refrigeration system for which the operation of the 
systems is not coordinated. For non-compressor multiple 
refrigeration system products, ``multiple compressor product'' as 
used in this appendix shall be interpreted to mean ``multiple 
refrigeration system product.''
    Precooling means operating a refrigeration system before 
initiation of a defrost cycle to reduce one or more compartment 
temperatures significantly (more than 0.5[emsp14][deg]F) below its 
minimum during stable operation between defrosts.
    Recovery means operating a refrigeration system after the 
conclusion of a defrost cycle to reduce the temperature of one or 
more compartments to the temperature range that the compartment(s) 
exhibited during stable operation between defrosts.
    Separate auxiliary compartment means a separate freezer, fresh 
food, or cellar compartment that is not the primary freezer, primary 
fresh food, or primary cellar compartment. Separate auxiliary 
compartments may also be convertible (e.g., from fresh food to 
freezer). Separate auxiliary compartments may not be larger than the 
primary compartment of their type, but such size restrictions do not 
apply to separate auxiliary convertible compartments.
    Special compartment means any compartment other than a butter 
conditioner, without doors directly accessible from the exterior, 
and with a separate temperature control (such as crispers 
convertible to meat keepers) that is not convertible from the fresh 
food temperature range to the freezer or cellar temperature ranges.

[[Page 74939]]

    Stable operation means operation after steady-state conditions 
have been achieved but excluding any events associated with defrost 
cycles. During stable operation the average rate of change of 
compartment temperatures must not exceed 0.042[emsp14][deg]F (0.023 
[deg]C) per hour for all compartment temperatures. Such a 
calculation performed for compartment temperatures at any two times, 
or for any two periods of time comprising complete cycles, during 
stable operation must meet this requirement.
    (a) If compartment temperatures do not cycle, the relevant 
calculation shall be the difference between the temperatures at two 
points in time divided by the difference, in hours, between those 
points in time.
    (b) If compartment temperatures cycle as a result of compressor 
cycling or other cycling operation of any system component (e.g., a 
damper, fan, heater, etc.), the relevant calculation shall be the 
difference between compartment temperature averages evaluated for 
the whole compressor cycles or complete temperature cycles divided 
by the difference, in hours, between either the starts, ends, or 
mid-times of the two cycles.
    Stabilization period means the total period of time during which 
steady-state conditions are being attained or evaluated.
    Standard cycle means the cycle type in which the anti-sweat 
heater control, when provided, is set in the highest energy-
consuming position.
    Through-the-door ice/water dispenser means a device incorporated 
within the cabinet, but outside the boundary of the refrigerated 
space, that delivers to the user on demand ice and may also deliver 
water from within the refrigerated space without opening an exterior 
door. This definition includes dispensers that are capable of 
dispensing ice and water or ice only.
    Variable anti-sweat heater control means an anti-sweat heater 
control that varies the average power input of the anti-sweat 
heater(s) based on operating condition variable(s) and/or ambient 
condition variable(s).
    Variable defrost control means an automatic defrost system in 
which successive defrost cycles are determined by an operating 
condition variable or variables other than solely compressor 
operating time. This includes any electrical or mechanical device 
performing this function. A control scheme that changes the defrost 
interval from a fixed length to an extended length (without any 
intermediate steps) is not considered a variable defrost control. A 
variable defrost control feature predicts the accumulation of frost 
on the evaporator and react accordingly. Therefore, the times 
between defrost must vary with different usage patterns and include 
a continuum of periods between defrosts as inputs vary.

2. Test Conditions

    2.1 Ambient Temperature Measurement. Temperature measuring 
devices shall be shielded so that indicated temperatures are not 
affected by the operation of the condensing unit or adjacent units.
    2.1.1 Ambient Temperature. Measure and record the ambient 
temperature at points located 3 feet (91.5 cm) above the floor and 
10 inches (25.4 cm) from the center of the two sides of the unit 
under test. For products other than non-compressor cooled cabinets, 
the ambient temperature shall be 90.0<plus-minus>1[emsp14][deg]F 
(32.2<plus-minus>0.6 [deg]C) during the stabilization period and the 
test period. For non-compressor cooled cabinets, the ambient 
temperature shall be 72.0<plus-minus>1.0[emsp14][deg]F (22.2<plus-
minus>0.6 [deg]C) during the stabilization period and the test 
period.
    2.1.2 Ambient Temperature Gradient. The test room vertical 
ambient temperature gradient in any foot of vertical distance from 2 
inches (5.1 cm) above the floor or supporting platform to a height 
of 1 foot (30.5 cm) above the top of the unit under test is not to 
exceed 0.5[emsp14][deg]F per foot (0.9 [deg]C per meter). The 
vertical ambient temperature gradient at locations 10 inches (25.4 
cm) out from the centers of the two sides of the unit being tested 
is to be maintained during the test. To demonstrate that this 
requirement has been met, test data must include measurements taken 
using temperature sensors at locations 10 inches (25.4 cm) from the 
center of the two sides of the unit under test at heights of 2 
inches (5.1 cm) and 36 inches (91.4 cm) above the floor or 
supporting platform and at a height of 1 foot (30.5 cm) above the 
unit under test.
    2.1.3 Platform. A platform must be used if the floor temperature 
is not within 3[emsp14][deg]F (1.7 [deg]C) of the measured ambient 
temperature. If a platform is used, it is to have a solid top with 
all sides open for air circulation underneath, and its top shall 
extend at least 1 foot (30.5 cm) beyond each side and front of the 
unit under test and extend to the wall in the rear.
    2.2 Operational Conditions. The unit under test shall be 
installed and its operating conditions maintained in accordance with 
HRF-1-2008, (incorporated by reference; see Sec.  430.3), sections 
5.3.2 through 5.5.5.5. Exceptions and clarifications to the cited 
sections of HRF-1-2008 are noted in sections 2.3 through 2.8, and 
5.1 of this appendix.
    2.2 Operational Conditions. The unit under test shall be 
installed and its operating conditions maintained in accordance with 
HRF-1-2008 (incorporated by reference; see Sec.  430.3), sections 
5.3.2 through section 5.5.5.5 (excluding section 5.5.5.4). 
Exceptions and clarifications to the cited sections of HRF-1-2008 
are noted in sections 2.3 through 2.8, and 5.1 of this appendix.
    2.3 Anti-Sweat Heaters. The anti-sweat heater switch is to be on 
during one test and off during a second test. In the case of a unit 
equipped with variable anti-sweat heater control, the standard cycle 
energy use shall be the result of the calculation described in 
section 6.2.5 of this appendix.
    2.4 Conditions for Automatic Defrost Refrigerator-Freezers, 
Hybrid Refrigerator-Freezers and Hybrid Freezers. For these 
products, the freezer compartments shall not be loaded with any 
frozen food packages during testing. Cylindrical metallic masses of 
dimensions 1.12<plus-minus>0.25 inches (2.9<plus-minus>0.6 cm) in 
diameter and height shall be attached in good thermal contact with 
each temperature sensor within the refrigerated compartments. All 
temperature measuring sensor masses shall be supported by low-
thermal-conductivity supports in such a manner to ensure that there 
will be at least 1 inch (2.5 cm) of air space separating the thermal 
mass from contact with any interior surface or hardware inside the 
cabinet. In case of interference with hardware at the sensor 
locations specified in section 5.1 of this appendix, the sensors 
shall be placed at the nearest adjacent location such that there 
will be a 1-inch air space separating the sensor mass from the 
hardware.
    2.5 Conditions for All-Refrigerators, Hybrid All-Refrigerators, 
Non-compressor All-Refrigerators, and Hybrid Non-compressor All-
Refrigerators. There shall be no load in the freezer compartment 
during the test.
    2.6 The cabinet and its refrigerating mechanism shall be 
assembled and set up in accordance with the printed consumer 
instructions supplied with the cabinet. Set-up of the test unit 
shall not deviate from these instructions, unless explicitly 
required or allowed by this test procedure. Specific required or 
allowed deviations from such set-up include the following:
    (a) Connection of water lines and installation of water filters 
are not required;
    (b) Clearance requirements from surfaces of the product shall be 
as described in section 2.8 of this appendix;
    (c) The electric power supply shall be as described in HRF-1-
2008 (incorporated by reference; see Sec.  430.3), section 5.5.1;
    (d) Temperature control settings for testing shall be as 
described in section 3 below. Settings for convertible compartments 
and other temperature-controllable or special compartments shall be 
as described in section 2.7 of this appendix;
    (e) The product does not need to be anchored or otherwise 
secured to prevent tipping during energy testing;
    (f) All the product's chutes and throats required for the 
delivery of ice shall be free of packing, covers, or other blockages 
that may be fitted for shipping or when the icemaker is not in use; 
and
    (g) Ice storage bins shall be emptied of ice.
    For cases in which set-up is not clearly defined by this test 
procedure, manufacturers must submit a petition for a waiver (see 
section 7 of this appendix).
    2.7 Compartments that are convertible (e.g., from fresh food to 
freezer or cellar) shall be operated in the highest energy use 
position. A compartment may be considered to be convertible to a 
cellar compartment if it is capable of maintaining compartment 
temperatures at least as high as 55[emsp14][deg]F (12.8 [deg]C) and 
also capable of operating at storage temperatures less than 
37[emsp14][deg]F. For the special case of convertible separate 
auxiliary compartments, this means that the compartment shall be 
treated as a freezer compartment, a fresh food compartment, or a 
cellar compartment, depending on which of these represents the 
highest energy use.
    Special compartments shall be tested with controls set to 
provide the coldest temperature. However, for special compartments 
in which temperature control is achieved using the addition of heat 
(including resistive electric heating, refrigeration system waste 
heat, or heat from any other source, but excluding the transfer of 
air from another part of the interior of the product) for any part 
of the controllable

[[Page 74940]]

temperature range of that compartment, the product energy use shall 
be determined by averaging two sets of tests. The first set of tests 
shall be conducted with such special compartments at their coldest 
settings, and the second set of tests shall be conducted with such 
special compartments at their warmest settings. The requirements for 
the warmest or coldest temperature settings of this section do not 
apply to features or functions associated with temperature controls 
(such as fast chill compartments) that are initiated manually and 
terminated automatically within 168 hours.
    Cellar compartments with their own temperature control that are 
a part of refrigerators, refrigerator-freezers, or non-compressor 
refrigerators shall be tested according to the requirements for 
special compartments as described in this section.
    Moveable subdividing barriers (see compartment definition (a) in 
section 1 of this appendix) that separate compartments of different 
types (e.g., fresh food on one side and cellar on the other side) 
shall be placed in the median position. If such a subdividing 
barrier has an even number of positions, the near-median position 
representing the smallest volume of the warmer compartment(s) shall 
be used.
    2.8 Rear Clearance.
    (a) General. The space between the lowest edge of the rear plane 
of the cabinet and a vertical surface (the test room wall or 
simulated wall) shall be the minimum distance in accordance with the 
manufacturer's instructions, unless other provisions of this section 
apply. The rear plane shall be considered to be the largest flat 
surface at the rear of the cabinet, excluding features that protrude 
beyond this surface, such as brackets or compressors.
    (b) Maximum clearance. The clearance shall not be greater than 2 
inches (51 mm) from the lowest edge of the rear plane to the 
vertical surface, unless the provisions of paragraph (c) of this 
section apply.
    (c) If permanent rear spacers or other components that protrude 
beyond the rear plane extend further than the 2 inch (51 mm) 
distance, or if the highest edge of the rear plane is in contact 
with the vertical surface when the unit is positioned with the 
lowest edge of the rear plane at or further than the 2 inch (51 mm) 
distance from the vertical surface, the appliance shall be located 
with the spacers or other components protruding beyond the rear 
plane, or the highest edge of the rear plane, in contact with the 
vertical surface.
    (d) Rear-mounted condensers. If the product has a flat rear-
wall-mounted condenser (i.e., a rear-wall-mounted condenser with all 
refrigerant tube centerlines within 0.25 inches (6.4 mm) of the 
condenser plane), and the area of the condenser plane represents at 
least 25% of the total area of the rear wall of the cabinet, then 
the spacing to the vertical surface may be measured from the lowest 
edge of the condenser plane.
    2.9 Steady-State Condition. Steady-state conditions exist if the 
temperature measurements in all measured compartments taken at 4-
minute intervals or less during a stabilization period are not 
changing at a rate greater than 0.042[emsp14][deg]F (0.023 [deg]C) 
per hour as determined by the applicable condition of paragraphs (a) 
or (b), of this section.
    (a) The average of the measurements during a 2-hour period if no 
cycling occurs or during a number of complete repetitive compressor 
cycles occurring through a period of no less than 2 hours is 
compared to the average over an equivalent time period with 3 hours 
elapsing between the two measurement periods.
    (b) If paragraph (a) of this section cannot be used, the average 
of the measurements during a number of complete repetitive 
compressor cycles occurring through a period of no less than 2 hours 
and including the last complete cycle before a defrost period (or if 
no cycling occurs, the average of the measurements during the last 2 
hours before a defrost period) are compared to the same averaging 
period before the following defrost period.
    2.10 Products with Demand-Response Capability. Products that 
have a communication module for demand-response functions that is 
located within the cabinet shall be tested with the communication 
module in the configuration set at the factory just before shipping.

3. Test Control Settings

    3.1 Model with No User Operable Temperature Control. A test 
shall be performed to measure the compartment temperatures and 
energy use. A second test shall be performed with the temperature 
control electrically short circuited to cause the compressor to run 
continuously (or to cause the non-compressor refrigeration system to 
run continuously at maximum capacity).
    3.2 Models with User Operable Temperature Control. Testing shall 
be performed in accordance with the procedure in this section using 
the following standardized temperatures:
    All-refrigerator or non-compressor all-refrigerator: 
39[emsp14][deg]F (3.9 [deg]C) fresh food compartment temperature;
    Hybrid all-refrigerator, or hybrid non-compressor all-
refrigerator: 39[emsp14][deg]F (3.9 [deg]C) fresh food compartment 
temperature, and 55[emsp14][deg]F (12.8 [deg]C) cellar compartment 
temperature;
    Refrigerator or non-compressor refrigerator: 15[emsp14][deg]F (-
9.4 [deg]C) freezer compartment temperature and 39[emsp14][deg]F 
(3.9 [deg]C) fresh food compartment temperature;
    Hybrid refrigerator or hybrid non-compressor refrigerator: 
15[emsp14][deg]F (-9.4 [deg]C) freezer compartment temperature, 
39[emsp14][deg]F (3.9 [deg]C) fresh food compartment temperature, 
and 55[emsp14][deg]F (12.8 [deg]C) cellar compartment temperature;
    Refrigerator-freezer: 0[emsp14][deg]F (-17.8 [deg]C) freezer 
compartment temperature and 39[emsp14][deg]F (3.9 [deg]C) fresh food 
compartment temperature;
    Hybrid refrigerator-freezer: 0[emsp14][deg]F (-17.8 [deg]C) 
freezer compartment temperature, 39[emsp14][deg]F (3.9 [deg]C) fresh 
food compartment temperature, and 55[emsp14][deg]F (12.8 [deg]C) 
cellar compartment temperature;
    Hybrid freezer: 0[emsp14][deg]F (-17.8 [deg]C) freezer 
compartment temperature and 55[emsp14][deg]F (12.8 [deg]C) cellar 
compartment temperature;
    Cooled cabinet, including non-compressor models: 
55[emsp14][deg]F (12.8 [deg]C) cellar compartment temperature.
    For the purposes of comparing compartment temperatures with 
standardized temperatures, as described in sections 3.2.1 and 3.2.2 
of this appendix, the freezer compartment temperature shall be as 
specified in section 5.1.4 of this appendix, the fresh food 
compartment temperature shall be as specified in section 5.1.3 of 
this appendix, and the cellar compartment temperature shall be as 
specified in section 5.1.5 of this appendix.
    3.2.1 Temperature Control Settings and Tests to Use for Energy 
Use Calculations.
    3.2.1.1 Setting Temperature Controls. For mechanical control 
systems, (a) knob detents shall be mechanically defeated if 
necessary to attain a median setting, and (b) the warmest and 
coldest settings shall correspond to the positions in which the 
indicator is aligned with control symbols indicating the warmest and 
coldest settings. For electronic control systems, the test shall be 
performed with all compartment temperature controls set at the 
average of the coldest and warmest settings; if there is no setting 
equal to this average, the setting closest to the average shall be 
used. If there are two such settings equally close to the average, 
the higher of these temperature control settings shall be used.
    3.2.1.2 Test Sequence. A first test shall be performed with all 
compartment temperature controls set at their median position midway 
between their warmest and coldest settings. A second test shall be 
performed with all controls set at their warmest setting or all 
controls set at their coldest setting (not electrically or 
mechanically bypassed). For units with a single standardized 
temperature (e.g., all-refrigerator or cooled cabinet), this setting 
shall be the appropriate setting that attempts to achieve 
compartment temperatures measured during the two tests that bound 
(i.e., one is above and one is below) the standardized temperature. 
For other units, the second test shall be conducted with all 
controls at their coldest setting, unless all compartment 
temperatures measured during the first test are lower than the 
standardized temperatures, in which case the second test shall be 
conducted with all controls at their warmest setting.
    3.2.1.3 Tests to Use for Energy Use Calculations. For non-
compressor refrigerators, if any compartment is warmer than its 
standardized temperature for a test with all controls at their 
coldest position, the energy calculation shall be based on the cold 
setting and the average compartment temperature of the cold setting 
shall be recorded. For all other products covered by this appendix, 
if any compartment is warmer than its standardized temperature for a 
test with all controls at their coldest position, the energy use 
shall be calculated based on tests conducted with the temperature 
controls in the cold setting for the first test and in the warm 
setting for the second test, subject to the restriction that, (a) 
the compartment temperatures must be warmer for the test conducted 
with the controls set in the warm position than their measurements 
with the controls set in the cold position, and (b) the measured 
energy use for the warm position

[[Page 74941]]

must be lower than the measured energy for the cold position. If 
condition (a) or (b) is not met, the manufacturer must submit a 
petition for a waiver (see section 7 of this appendix).
    3.2.1.4 Temperature Setting Tables. Refer to Table 1 of this 
section for products that have only a single refrigerated 
compartment (e.g., all-refrigerators) or Table 2 of this section for 
products that have fresh food and freezer compartments (e.g., 
refrigerators with freezer compartments or refrigerator-freezers) to 
determine which test results to use in the energy consumption 
calculation. See Table 3 of this section for a general description 
of which settings to use and which test results to use in the energy 
consumption calculation for products with one, two, or three 
standardized temperatures.

                          Table 1--Temperature Settings for Single-Compartment Products
                                            [E.g., all-refrigerators]
----------------------------------------------------------------------------------------------------------------
                    First test                                   Second test
-----------------------------------------------------------------------------------------   Energy calculation
            Settings                  Results            Settings           Results              based on:
----------------------------------------------------------------------------------------------------------------
Mid............................  Low..............  Warm.............  Low..............  Second Test Only.
                                                                       High.............  First and Second
                                                                                           Tests.
                                 High.............  Cold.............  Low..............  First and Second
                                                                       High.............   Tests.
                                                                                          Cold- and Warm-Setting
                                                                                           Tests.* **
----------------------------------------------------------------------------------------------------------------
* If compartment temperature is warmer and energy use is lower for the warm-setting test.
** Except for non-compressor all-refrigerators, for which the energy calculation shall be based on the second
  test only.


 Table 2--Temperature Settings for Refrigeration Products With Freezer Compartments and Fresh Food Compartments
----------------------------------------------------------------------------------------------------------------
                    First test                                   Second test
-----------------------------------------------------------------------------------------   Energy calculation
            Settings                  Results            Settings           Results              based on:
----------------------------------------------------------------------------------------------------------------
Fzr Mid........................  Fzr Low..........  Fzr Warm.........  Fzr Low..........  Second Test Only.
FF Mid.........................  FF Low...........  FF Warm..........  FF Low...........
                                                                       Fzr Low..........  First and Second
                                                                       FF High..........   Tests.
                                                                       Fzr High.........  First and Second Test.
                                                                       FF Low...........
                                                                       Fzr High.........  First and Second Test.
                                                                       FF High..........
                                 Fzr Low..........  Fzr Cold.........  Fzr Low..........  Cold- and Warm-Setting
                                 FF High..........  FF Cold..........  FF High..........   Tests.* **
                                                                       Fzr Low..........  First and Second
                                                                       FF Low...........   Tests.
                                 Fzr High.........  Fzr Cold.........  Fzr High.........  Cold- and Warm-Setting
                                 FF Low...........  FF Cold..........  FF Low...........   Tests.* **
                                 .................  .................  Fzr Low..........  First and Second
                                                                       FF Low...........   Tests.
                                 Fzr High.........  Fzr Cold.........  Fzr Low..........  First and Second
                                 FF High..........  FF Cold..........  FF Low...........   Tests.
                                                                       Fzr Low..........  Cold- and Warm-Setting
                                                                       FF High..........   Tests.* **
                                                                       Fzr High.........  Cold- and Warm-Setting
                                                                       FF Low...........   Tests.* **
                                                                       Fzr High.........  Cold- and Warm-Setting
                                                                       FF High..........   Tests.* **
----------------------------------------------------------------------------------------------------------------
Notes: Fzr = Freezer Compartment, FF = Fresh Food Compartment.
* If compartment temperature is warmer and energy use is lower for the warm-setting test.
** Except for non-compressor refrigerators, for which the energy calculation shall be based on the second test
  only.


                          Table 3--Temperature Settings: General Chart for All Products
----------------------------------------------------------------------------------------------------------------
                    First test                                   Second test
-----------------------------------------------------------------------------------------   Energy calculation
            Setting                   Results            Setting            Results              based on:
----------------------------------------------------------------------------------------------------------------
Mid for all compartments.......  All compartments   Warm for all       All compartments   Second Test Only.
                                  low.               compartments.      low.              First and Second Test.
                                                                       One or more
                                                                        compartments
                                                                        high.
                                 One or more        Cold for all       All compartments   First and Second Test.
                                  compartments       compartments.      low.              Cold- and Warm-Setting
                                  high.                                One or more         Tests.* **
                                                                        compartments
                                                                        high.
----------------------------------------------------------------------------------------------------------------
* If compartment temperature is warmer and energy use is lower for the warm-setting test.
** Except for non-compressor refrigerators, for which the energy calculation shall be based on the second test
  only.


[[Page 74942]]

    3.2.2 Alternatively, a first test may be performed with all 
temperature controls set at their warmest setting. If all 
compartment temperatures are below the appropriate standardized 
temperatures, then the result of this test alone will be used to 
determine energy consumption. If this condition is not met, then the 
unit shall be tested in accordance with 3.2.1 of this appendix.
    3.2.3 Temperature Settings for Separate Auxiliary Convertible 
Compartments. For separate auxiliary convertible compartments tested 
as freezer compartments, the median setting shall be within 
2[emsp14][deg]F (1.1 [deg]C) of the standardized freezer compartment 
temperature, and the warmest setting shall be at least 
5[emsp14][deg]F (2.8 [deg]C) warmer than the standardized 
temperature. For separate auxiliary convertible compartments tested 
as fresh food compartments, the median setting shall be within 
2[emsp14][deg]F (1.1 [deg]C) of 39[emsp14][deg]F (3.9 [deg]C), the 
coldest setting shall be below 34[emsp14][deg]F (1.1 [deg]C), and 
the warmest setting shall be above 43[emsp14][deg]F (6.1 [deg]C). 
For separate auxiliary convertible compartments tested as cellar 
compartments, the median setting shall be within 2[emsp14][deg]F 
(1.1 [deg]C) of 55[emsp14][deg]F (12.8 [deg]C), and the coldest 
setting shall be below 50[emsp14][deg]F (10.0 [deg]C). For 
compartments where control settings are not expressed as particular 
temperatures, the measured temperature of the convertible 
compartment rather than the settings shall meet the specified 
criteria.
    3.3 Optional Test for Models with Two Compartments and User 
Operable Controls. As an alternative to section 3.2 of this 
appendix, perform three tests such that the set of tests meets the 
``minimum requirements for interpolation'' of AS/NZS 4474.1:2007 
(incorporated by reference; see Sec.  430.3) appendix M, section M3, 
paragraphs (a) through (c) and as illustrated in Figure M1. The 
target temperatures t<INF>xA</INF> and t<INF>xB</INF> defined in 
section M4(a)(i) of AS/NZ 4474.1:2007 shall be the standardized 
temperatures defined in section 3.2 of this appendix.
* * * * *

5. Test Measurements

    5.1 Temperature Measurements. (a) Temperature measurements shall 
be made at the locations prescribed in HRF-1-2008 (incorporated by 
reference; see Sec.  430.3) Figure 5.1 for cellar and fresh food 
compartments and Figure 2 for freezer compartments and shall be 
accurate to within <plus-minus>0.5[emsp14][deg]F (0.3 [deg]C). No 
freezer temperature measurements need be taken in an all-
refrigerator, hybrid all-refrigerator, non-compressor all-
refrigerator, or hybrid non-compressor all-refrigerator. No cellar 
compartment temperature measurements need be taken in a 
refrigerator, refrigerator-freezer, or non-compressor refrigerator.
    (b) If the interior arrangements of the unit under test do not 
conform with those shown in Figures 5.1 or 5.2 of HRF-1-2008, as 
appropriate, the unit must be tested by relocating the temperature 
sensors from the locations specified in the figures to avoid 
interference with hardware or components within the unit, in which 
case the specific locations used for the temperature sensors shall 
be noted in the test data records maintained by the manufacturer in 
accordance with 10 CFR 429.71, and the certification report shall 
indicate that non-standard sensor locations were used. If any 
temperature sensor is relocated by any amount from the location 
prescribed in Figure 5.1 or 5.2 of HRF-1-2008 in order to maintain a 
minimum 1-inch air space from adjustable shelves or other components 
that could be relocated by the consumer, except in cases in which 
the Figures prescribe a temperature sensor location within 1 inch of 
a shelf or similar feature (e.g., sensor T<INF>3</INF> in Figure 5-
1), this constitutes a relocation of temperature sensors that must 
be recorded in the test data and reported in the certification 
report as described above.
    5.1.1 Measured Temperature. The measured temperature of a 
compartment is the average of all sensor temperature readings taken 
in that compartment at a particular point in time. Measurements 
shall be taken at regular intervals not to exceed 4 minutes. 
Measurements for multiple refrigeration system products shall be 
taken at regular intervals not to exceed one minute.
    5.1.2 Compartment Temperature. The compartment temperature for 
each test period shall be an average of the measured temperatures 
taken in a compartment during the test period as defined in section 
4 of this appendix. For long-time automatic defrost models, 
compartment temperatures shall be those measured in the first part 
of the test period specified in section 4.2.1 of this appendix. For 
models with variable defrost controls, compartment temperatures 
shall be those measured in the first part of the test period 
specified in section 4.2.2 of this appendix. For models with 
automatic defrost that is neither long-time nor variable defrost, 
the compartment temperature shall be an average of the measured 
temperatures taken in a compartment during a stable period of 
compressor operation that
    (a) Includes no defrost cycles or events associated with a 
defrost cycle, such as precooling or recovery,
    (b) Is no less than three hours in duration, and
    (c) Includes two or more whole compressor cycles. If the 
compressor does not cycle, the stable period used for the 
temperature average shall be three hours in duration.
    5.1.3 Fresh Food Compartment Temperature. The fresh food 
compartment temperature shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.009

Where:

R is the total number of applicable fresh food compartments, 
including the primary fresh food compartment and any separate 
auxiliary fresh food compartments (including separate auxiliary 
convertible compartments tested as fresh food compartments in 
accordance with section 2.7 of this appendix), but excluding any 
cellar compartments;
TR<INF>i</INF> is the compartment temperature of fresh food 
compartment ``i'' determined in accordance with section 5.1.2 of 
this appendix; and
VR<INF>i</INF> is the volume of fresh food compartment ``i.''

    5.1.4 Freezer Compartment Temperature. The freezer compartment 
temperature shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.010

Where:

F is the total number of applicable freezer compartments, which 
include the first freezer compartment and any number of separate 
auxiliary freezer compartments (including separate auxiliary 
convertible compartments tested as freezer compartments in 
accordance with section 2.7 of this appendix);
TF<INF>i</INF> is the compartment temperature of freezer compartment 
``i'' determined in accordance with section 5.1.2 of this appendix; 
and
VF<INF>i</INF> is the volume of freezer compartment ``i''.

    5.1.5 Cellar Compartment Temperature. The cellar compartment 
temperature shall be calculated with the following equation provided 
that the model is a hybrid refrigeration product or cooled cabinet:
[GRAPHIC] [TIFF OMITTED] TP16DE14.011

Where:

C is the total number of applicable cellar compartments, which 
include all cellar compartments that are not considered to be part 
of the fresh food compartment (including separate auxiliary 
convertible compartments tested as cellar compartments in accordance 
with section 2.7 of this appendix);
TC<INF>i</INF> is the compartment temperature of cellar compartment 
``i'' determined in accordance with section 5.1.2 of this appendix; 
and
VC<INF>i</INF> is the volume of cellar compartment ``i.''

    5.2 Energy Measurements
    5.2.1 Per-Day Energy Consumption. The energy consumption in 
kilowatt-hours per day, ET, for each test period shall be the energy 
expended during the test period as specified in section 4 of this 
appendix adjusted to a 24-hour period. The adjustment shall be 
determined as follows.
    5.2.1.1 Non-Automatic Defrost and Automatic Defrost. The energy 
consumption in kilowatt-hours per day shall be calculated equivalent 
to:

ET = (EP x 1440 x K)/T

Where:

ET = test cycle energy expended in kilowatt-hours per day;
EP = energy expended in kilowatt-hours during the test period;
T = length of time of the test period in minutes; and
1440 = conversion factor to adjust to a 24-hour period in minutes 
per day.
K = dimensionless correction factor of 1.0 for refrigerators, 
refrigerator-freezers, and non-compressor refrigerators; 0.55 for 
cooled cabinets with a compressor and condenser unit as an integral 
part of the cabinet assembly; 1.20 for non-compressor cooled 
cabinets; and 0.85 for

[[Page 74943]]

hybrid refrigeration products to adjust for average household usage.

    5.2.1.2 Long-time Automatic Defrost. If the two-part test method 
is used, the energy consumption in kilowatt-hours per day shall be 
calculated equivalent to:

ET = (1440 x K x EP1/T1) + (EP2 - (EP1 x T2/T1)) x K x (12/CT)

Where:

ET, 1440, and K are defined in section 5.2.1.1 of this appendix;
EP1 = energy expended in kilowatt-hours during the first part of the 
test;
EP2 = energy expended in kilowatt-hours during the second part of 
the test;
T1 and T2 = length of time in minutes of the first and second test 
parts respectively;
CT = defrost timer run time or compressor run time between defrosts 
in hours required to cause it to go through a complete cycle, 
rounded to the nearest tenth of an hour; and
12 = factor to adjust for a 50-percent run time of the compressor in 
hours per day.

5.2.1.3 Variable Defrost Control. The energy consumption in 
kilowatt-hours per day shall be calculated equivalent to:

ET = (1440 x K x EP1/T1) + (EP2 - (EP1 x T2/T1)) x K x (12/CT),

Where:

1440 and K are defined in section 5.2.1.1 of this appendix and EP1, 
EP2, T1, T2, and 12 are defined in section 5.2.1.2 of this appendix;
CT = (CT<INF>L</INF> x CT<INF>M</INF>)/(F x (CT<INF>M</INF> - 
CT<INF>L</INF>) + CT<INF>L</INF>);
CT<INF>L</INF> = the shortest compressor run time between defrosts 
used in the variable defrost control algorithm (greater than or 
equal to 6 but less than or equal to 12 hours), or the shortest 
compressor run time between defrosts observed for the test (if it is 
shorter than the shortest run time used in the control algorithm and 
is greater than 6 hours), or 6 hours (if the shortest observed run 
time is less than 6 hours), in hours rounded to the nearest tenth of 
an hour;
CT<INF>M</INF> = maximum compressor run time between defrosts in 
hours rounded to the nearest tenth of an hour (greater than 
CT<INF>L</INF> but not more than 96 hours);
F = ratio of per day energy consumption in excess of the least 
energy and the maximum difference in per-day energy consumption and 
is equal to 0.20.

    For variable defrost models with no values for CT<INF>L</INF> 
and CT<INF>M</INF> in the algorithm, the default values of 6 and 96 
shall be used, respectively.
    5.2.1.4 Multiple Compressor Products with Automatic Defrost. For 
multiple compressor products, the two-part test method in section 
4.2.3.4 of this appendix must be used. The energy consumption in 
kilowatt-hours per day shall be calculated equivalent to:
[GRAPHIC] [TIFF OMITTED] TP16DE14.012

Where:

1440 and K are defined in section 5.2.1.1 of this appendix and EP1, 
T1, and 12 are defined in section 5.2.1.2 of this appendix;
i = a variable that can equal 1, 2, or more that identifies each 
individual compressor system that has automatic defrost;
D = the total number of compressor systems with automatic defrost.
EP2<INF>i</INF> = energy expended in kilowatt-hours during the 
second part of the test for compressor system i;
T2<INF>i</INF> = length of time in minutes of the second part of the 
test for compressor system i;
CT<INF>i</INF> = the compressor run time between defrosts for 
compressor system i in hours rounded to the nearest tenth of an 
hour, for long-time automatic defrost control equal to a fixed time 
in hours, and for variable defrost control equal to

(CT<INF>Li</INF>x CT<INF>Mi</INF>)/(F x (CT<INF>Mi</INF>- 
CT<INF>Li</INF>) + CT<INF>Li</INF>);

Where:

CT<INF>Li</INF> = for compressor system i, the shortest compressor 
run time between defrosts used in the variable defrost control 
algorithm (greater than or equal to 6 but less than or equal to 12 
hours), or the shortest compressor run time between defrosts 
observed for the test (if it is shorter than the shortest run time 
used in the control algorithm and is greater than 6 hours), or 6 
hours (if the shortest observed run time is less than 6 hours), in 
hours rounded to the nearest tenth of an hour;
CT<INF>Mi</INF> = for compressor system i, the maximum compressor 
run time between defrosts in hours rounded to the nearest tenth of 
an hour (greater than CT<INF>Li</INF> but not more than 96 hours);
F = default defrost energy consumption factor, equal to 0.20.
    For variable defrost models with no values for CT<INF>Li</INF> 
and CT<INF>Mi</INF> in the algorithm, the default values of 6 and 96 
shall be used, respectively.

    5.2.1.5 Long-time or Variable Defrost Control for Systems with 
Multiple Defrost Cycle Types. The energy consumption in kilowatt-
hours per day shall be calculated equivalent to:
[GRAPHIC] [TIFF OMITTED] TP16DE14.013

Where:

1440 and K are defined in section 5.2.1.1 of this appendix and EP1, 
T1, and 12 are defined in section 5.2.1.2 of this appendix;
i is a variable that can equal 1, 2, or more that identifies the 
distinct defrost cycle types applicable for the product;
EP2<INF>i</INF> = energy expended in kilowatt-hours during the 
second part of the test for defrost cycle type i;
T2<INF>i</INF> = length of time in minutes of the second part of the 
test for defrost cycle type i;
CT<INF>i</INF> is the compressor run time between instances of 
defrost cycle type i, for long-time automatic defrost control equal 
to a fixed time in hours rounded to the nearest tenth of an hour, 
and for variable defrost control equal to

(CT<INF>Li</INF> x CT<INF>Mi</INF>)/(F x (CT<INF>Mi</INF> - 
CT<INF>Li</INF>) + CT<INF>Li</INF>);

CT<INF>Li</INF> = least or shortest compressor run time between 
instances of defrost cycle type i in hours rounded to the nearest 
tenth of an hour (CT<INF>L</INF> for the defrost cycle type with the 
longest compressor run time between defrosts must be greater than or 
equal to 6 but less than or equal to 12 hours);
CT<INF>Mi</INF> = maximum compressor run time between instances of 
defrost cycle type i in hours rounded to the nearest tenth of an 
hour (greater than CT<INF>Li</INF> but not more than 96 hours);

    For cases in which there are more than one fixed CT value (for 
long-time defrost models) or more than one CT<INF>M</INF> and/or 
CT<INF>L</INF> value (for variable defrost models) for a given 
defrost cycle type, an average fixed CT value or average 
CT<INF>M</INF> and CT<INF>L</INF> values shall be selected for this 
cycle type so that 12 divided by this value or values is the 
frequency of occurrence of the defrost cycle type in a 24 hour 
period, assuming 50% compressor run time.
    F = default defrost energy consumption factor, equal to 0.20.
    For variable defrost models with no values for CT<INF>Li</INF> 
and CT<INF>Mi</INF> in the algorithm, the default values of 6 and 96 
shall be used, respectively.
    D is the total number of distinct defrost cycle types.

[[Page 74944]]

    5.3 Volume Measurements. (a) The unit's total refrigerated 
volume, VT, shall be measured in accordance with HRF-1-2008, 
(incorporated by reference; see Sec.  430.3), section 3.30 and 
sections 4.2 through 4.3. The measured volume shall include all 
spaces within the insulated volume of each compartment except for 
the volumes that must be deducted in accordance with section 4.2.2 
of HRF-1-2008, as provided in paragraph (b) of this section, and be 
calculated equivalent to:

VT = VF + VFF + VC

Where:

VT = total refrigerated volume in cubic feet,
VF = freezer compartment volume in cubic feet,
VFF = fresh food compartment volume in cubic feet, and
VC = cellar compartment volume in cubic feet.

    (b) The following component volumes shall not be included in the 
compartment volume measurements: Icemaker compartment insulation 
(e.g., insulation isolating the icemaker compartment from the fresh 
food compartment of a product with a bottom-mounted freezer with 
through-the-door ice service), fountain recess, dispenser 
insulation, and ice chute (if there is a plug, cover, or cap over 
the chute per Figure 4-2 of HRF-1-2008). The following component 
volumes shall be included in the compartment volume measurements: 
icemaker auger motor (if housed inside the insulated space of the 
cabinet), icemaker kit, ice storage bin, and ice chute (up to the 
dispenser flap, if there is no plug, cover, or cap over the ice 
chute per Figure 4-3 of HRF-1-2008).
    (c) Total refrigerated volume is determined by physical 
measurement of the test unit. Measurements and calculations used to 
determine the total refrigerated volume shall be retained as part of 
the test records underlying the certification of the basic model in 
accordance with 10 CFR 429.71.
    (d) Compartment classification shall be based on subdivision of 
the refrigerated volume into zones separated from each other by 
subdividing barriers: No evaluated compartment shall be a zone of a 
larger compartment unless the zone is separated from the remainder 
of the larger compartment by subdividing barriers; if there are no 
such subdividing barriers within the larger compartment, the larger 
compartment must be evaluated as a single compartment rather than as 
multiple compartments. If the cabinet contains a moveable 
subdividing barrier, it must be placed as described in section 2.7 
of this appendix.
    (e) Freezer, fresh food, and cellar compartment volumes shall be 
calculated and recorded to the nearest 0.01 cubic feet. Total 
refrigerated volume shall be calculated and recorded to the nearest 
0.1 cubic feet.

6. Calculation of Derived Results From Test Measurements

    6.1 Adjusted Total Volume. The adjusted total volume of each 
tested unit must be determined based upon the volume measured in 
section 5.3 of this appendix using the following calculations. Where 
volume measurements for the freezer, fresh food, and cellar 
compartment are recorded in liters, the measured volume must be 
converted to cubic feet and rounded to the nearest 0.01 cubic foot 
prior to calculating the adjusted volume. Adjusted total volume 
shall be calculated and recorded to the nearest 0.1 cubic feet.
    6.1.1 Refrigerators, Hybrid Refrigerators, and Non-compressor 
Refrigerators. The adjusted total volume, AV, for refrigerators, 
hybrid refrigerators, or non-compressor refrigerators under test, 
shall be defined as:

AV = (VF x CR) + VFF + (VC x CC)

Where:

AV = adjusted total volume in cubic feet;
VF, VFF, and VC are defined in section 5.3 of this appendix;
CR = dimensionless adjustment factor for freezer compartments of 
1.00 for all-refrigerators, hybrid all-refrigerators, non-compressor 
all-refrigerators, and hybrid non-compressor all-refrigerators, or 
1.47 for other types of refrigerators, hybrid refrigerators, and 
non-compressor refrigerators; and
CC = dimensionless adjustment factor of 0.69 for cellar 
compartments.

    6.1.2 Refrigerator-Freezers, Hybrid Refrigerator-freezers, and 
Hybrid Freezers. The adjusted total volume, AV, for refrigerator-
freezers, hybrid refrigerator-freezers, and hybrid freezers under 
test shall be calculated as follows:

AV = (VF x CRF) + VFF + (VC x CC)

Where:

VF, VFF, and VC are defined in section 5.3 and AV is defined in 
section 6.1.1 of this appendix;
CRF = dimensionless adjustment factor for freezer compartments of 
1.76; and
CC = dimensionless adjustment factor for cellar compartments of 
0.69.

    6.1.3 Cooled Cabinets. The adjusted volume, AV, for cooled 
cabinets under test shall be equal to the cellar compartment volume, 
VC, which is defined in section 5.3 of this appendix.
    6.2 Average Per-Cycle Energy Consumption. The average per-cycle 
energy consumption for a cycle type, E, is expressed in kilowatt-
hours per cycle to the nearest one hundredth (0.01) kilowatt-hour 
and shall be calculated according to the sections below.
    6.2.1 All-Refrigerator and Non-compressor All-Refrigerator 
Models. The average per-cycle energy consumption shall depend upon 
the temperature attainable in the fresh food compartment as shown 
below.
    6.2.1.1 If the fresh food compartment temperature is always 
below 39.0[emsp14][deg]F (3.9 [deg]C), the average per-cycle energy 
consumption shall be equivalent to:

E = ET1

Where:

ET is defined in section 5.2.1 of this appendix; and
The number 1 indicates the test during which the highest fresh food 
compartment temperature is measured.

    6.2.1.2 If the product is a non-compressor all-refrigerator and 
the fresh food compartment temperature is above 39[emsp14][deg]F 
(3.9 [deg]C) for the test conducted using the cold temperature 
control setting, the average per-cycle energy consumption shall be 
equivalent to:

E = ET2

Where:

ET is defined in section 5.2.1 of this appendix; and
The number 2 indicates the test conducted for the cold temperature 
control setting.

    6.2.1.3 If the conditions of sections 6.2.1.1 and 6.2.1.2 of 
this appendix do not apply, the average per-cycle energy consumption 
shall be equivalent to:

E = ET1 + ((ET2 - ET1) x (39.0 - TR1)/(TR2 - TR1))

Where:

ET is defined in section 5.2.1 of this appendix;
TR = fresh food compartment temperature determined according to 
section 5.1.3 of this appendix in degrees F;
The numbers 1 and 2 indicate measurements taken during the two tests 
to be used to calculate energy consumption, as specified in section 
3 of this appendix; and
39.0 = standardized fresh food compartment temperature in degrees F.

    6.2.2 Cooled Cabinets. The average per-cycle energy consumption 
shall depend upon the temperature attainable in the cellar 
compartment as shown below.
    6.2.2.1 If the cellar compartment temperature is always below 
55.0 [deg]F (12.8 [deg]C), the average per-cycle energy consumption 
shall be equivalent to:

    E = ET1

Where:

ET is defined in section 5.2.1 of this appendix; and
The number 1 indicates the test during which the highest cellar 
compartment temperature is measured.

    6.2.2.2 If the cellar compartment temperature measured for at 
least one of the tests is greater than 55.0 [deg]F (12.8 [deg]C), 
the average per-cycle energy consumption shall be equivalent to:

E = ET1 + ((ET2 - ET1) x (55.0 - TC1)/(TC2 - TC1))

Where:

ET is defined in section 5.2.1 of this appendix;
TC = cellar compartment temperature determined according to section 
5.1.5 of this appendix in degrees F;
The numbers 1 and 2 indicate measurements taken during the two tests 
to be used to calculate energy consumption, as specified in section 
3 of this appendix; and
55.0 = standardized cellar compartment temperature in degrees F.

    6.2.3 Refrigerators, Refrigerator-Freezers, and Non-Compressor 
Refrigerators. The average per-cycle energy consumption shall be 
defined in one of the following ways as applicable.
    6.2.3.1 If the fresh food compartment temperature is always 
below 39[emsp14][deg]F (3.9 [deg]C) and the freezer compartment 
temperature is always below 15[emsp14][deg]F (-9.4 [deg]C) in both 
tests of a refrigerator or a non-compressor refrigerator or always 
below 0[emsp14][deg]F (-17.8[emsp14] [deg]C) in both tests

[[Page 74945]]

of a refrigerator-freezer, the average per-cycle energy consumption 
shall be:

E = ET1 + IET

Where:

ET is defined in section 5.2.1 of this appendix;
IET, expressed in kilowatt-hours per cycle, equals 0.23 for a 
product with an automatic icemaker and otherwise equals 0 (zero); 
and
The number 1 indicates the test during which the highest freezer 
compartment temperature was measured.
    6.2.3.2 If the product is a non-compressor refrigerator and the 
fresh food compartment temperature is above 39[emsp14][deg]F 
(3.9[emsp14][deg]C) or the freezer compartment temperature is above 
15[emsp14][deg]F (-9.4[emsp14][deg]C) for the test conducted using 
the cold temperature control setting, the average per-cycle energy 
consumption shall be equivalent to:

E = ET2

    Where:

ET is defined in section 5.2.1 of this appendix; and
The number 2 indicates the test conducted for the cold temperature 
control setting.

    6.2.3.3 If the conditions of sections 6.2.3.1 and 6.2.3.2 of 
this appendix do not apply, the average per-cycle energy consumption 
shall be defined by the higher of the two values calculated by the 
following two formulas:

E = ET1 + ((ET2 - ET1) x (39.0 - TR1)/(TR2 - TR1)) + IET

and

E = ET1 + ((ET2 - ET1) x (k - TF1)/(TF2 - TF1)) + IET

Where:

ET is defined in section 5.2.1 of this appendix;
IET is defined in section 6.2.3.1 of this appendix;
TR and the numbers 1 and 2 are defined in section 6.2.1.3 of this 
appendix;
TF = freezer compartment temperature determined according to section 
5.1.4 of this appendix in degrees F;
39.0 is a specified fresh food compartment temperature in degrees F; 
and
k is a constant 15.0 for refrigerators and non-compressor 
refrigerators or 0.0 for refrigerator-freezers, each being 
standardized freezer compartment temperatures in degrees F.

    6.2.4 Hybrid Refrigeration Products. The average per-cycle 
energy consumption shall be defined in one of the following ways as 
applicable.
    6.2.4.1 If the compartment temperatures are always below their 
compartments' standardized temperatures as defined in section 3.2 of 
this appendix (the fresh food compartment temperature is at or below 
39[emsp14][deg]F (3.9 [deg]C); the cellar compartment temperature is 
at or below 55[emsp14][deg]F (12.8 [deg]C); and the freezer 
compartment temperature is at or below 15[emsp14][deg]F (-
9.4[emsp14][deg]C) for a hybrid refrigerator or hybrid non-
compressor refrigerator, or the freezer compartment temperature is 
at or below 0[emsp14][deg]F (-17.8[emsp14][deg]C) for a hybrid 
refrigerator-freezer or hybrid freezer), the average per-cycle 
energy consumption shall be:

E = ET1 + IET

Where:

ET is defined in section 5.2.1 of this appendix;
IET is defined in section 6.2.3.1 of this appendix;
The number 1 indicates the test during which the highest freezer 
compartment temperature is measured. If the product has no freezer 
compartment, the number 1 indicates the test during which the 
highest fresh food compartment temperature is measured.

    6.2.4.2 If the product is a hybrid non-compressor refrigerator 
and the fresh food compartment temperature is above 39[emsp14][deg]F 
(3.9 [deg]C) or the freezer compartment temperature is above 
15[emsp14][deg]F (-9.4[emsp14] [deg]C) or the cellar compartment 
temperature is above 55[emsp14][deg]F (12.8 [deg]C) for the test 
conducted using the cold temperature control setting, the average 
per-cycle energy consumption shall be equivalent to:

E = ET2

Where:

ET is defined in section 5.2.1 of this appendix; and
The number 2 indicates the test conducted for the cold temperature 
control setting.

    6.2.4.3 If the conditions of sections 6.2.4.1 and 6.2.4.2 of 
this appendix do not apply, the average per-cycle energy consumption 
shall be defined by the highest of the two or three values 
calculated by the following three formulas:

E = (ET1 + ((ET2 - ET1) x (39.0 - TR1)/(TR2 - TR1)) + IET if the 
product has a fresh food compartment;
E = (ET1 + ((ET2 - ET1) x (k - TF1)/(TF2 - TF1)) + IET if the 
product has a freezer compartment; and
E = (ET1 + ((ET2 - ET1) x (55.0 - TC1)/(TC2 - TC1)) + IET

Where:

ET is defined in section 5.2.1 of this appendix;
IET is defined in section 6.2.3.1 of this appendix;
TR and the numbers 1 and 2 are defined in section 6.2.1.3 of this 
appendix;
TF is defined in section 6.2.3.2 of this appendix;
TC is defined in section 6.2.2.2 of this appendix;
39.0 is a specified fresh food compartment temperature in degrees F;
k is a constant 15.0 for hybrid refrigerators and hybrid non-
compressor refrigerators or 0.0 for hybrid refrigerator-freezers and 
hybrid freezers, each being standardized freezer compartment 
temperatures in degrees F; and
55.0 is a specified cellar compartment temperature in degrees F.

    6.2.5 Variable Anti-Sweat Heater Models. The standard cycle 
energy consumption of a model with a variable anti-sweat heater 
control (E<INF>std</INF>), expressed in kilowatt-hours per day, 
shall be calculated equivalent to:

E<INF>std</INF> = E + (Correction Factor) where E is determined by 
sections 6.2.1, 6.2.2, 6.2.3, or 6.2.4 of this appendix, whichever 
is appropriate, with the anti-sweat heater switch in the ``off'' 
position or, for a product without an anti-sweat heater switch, the 
anti-sweat heater in its lowest energy use state.

Correction Factor = (Anti-sweat Heater Power x System-loss Factor) x 
(24 hrs/1 day) x (1 kW/1000 W)

Where:

Anti-sweat Heater Power = 0.034 * (Heater Watts at 5%RH)
+0.211 * (Heater Watts at 15%RH)
+0.204 * (Heater Watts at 25%RH)
+0.166 * (Heater Watts at 35%RH)
+0.126 * (Heater Watts at 45%RH)
+0.119 * (Heater Watts at 55%RH)
+0.069 * (Heater Watts at 65%RH)
+0.047 * (Heater Watts at 75%RH)
+0.008 * (Heater Watts at 85%RH)
+0.015 * (Heater Watts at 95%RH)

    Heater Watts at a specific relative humidity = the nominal watts 
used by all heaters at that specific relative humidity, 
72[emsp14][deg]F (22.2 [deg]C) ambient, and DOE reference 
temperatures of fresh food (FF) average temperature of 
39[emsp14][deg]F (3.9 [deg]C) and freezer (FZ) average temperature 
of 0[emsp14][deg]F (-17.8 [deg]C).
System-loss Factor = 1.3.

7. Test Procedure Waivers

    To the extent that the procedures contained in this appendix do 
not provide a means for determining the energy consumption of a 
basic model, a manufacturer must obtain a waiver under 10 CFR 430.27 
to establish an acceptable test procedure for each such basic model. 
Such instances could, for example, include situations where the test 
set-up for a particular basic model is not clearly defined by the 
provisions of section 2 of this appendix. For details regarding the 
criteria and procedures for obtaining a waiver, please refer to 10 
CFR 430.27.

Appendix A1--[Removed]

0
11. Remove Appendix A1 to subpart B.

Appendix B--[Amended]

0
12. Amend Appendix B to subpart B of part 430 as follows:
0
a. Remove the introductory note.
0
b. Revise section 1. Definitions;
0
c. In section 2. Test Conditions, revise sections 2.3 and 2.5;
0
d. In section 3. Test Control Settings, revise section 3.2.1 and table 
1, and add sections 3.2.1.1, 3.2.1.2, and 3.2.1.3;
0
e. In section 5. Test Measurements, revise sections 5.1(b), 5.1.3, and 
5.3;
0
f. In section 6. Calculation of Derived Results From Test Measurements, 
revise sections 6.1, 6.2.1 and 6.2.2;
0
g. Revise section 7. Test Procedure Waivers.
    The revisions read as follows:

Appendix B to Subpart B of Part 430--Uniform Test Method for Measuring 
the Energy Consumption of Freezers

1. Definitions

    Section 3, Definitions, of HRF-1-2008 (incorporated by 
reference; see Sec.  430.3)

[[Page 74946]]

applies to this test procedure, except that the term ``wine chiller 
compartment'' means ``cellar compartment'' as defined in this 
appendix.
    Anti-sweat heater means a device incorporated into the design of 
a freezer to prevent the accumulation of moisture on the exterior or 
interior surfaces of the cabinet.
    Anti-sweat heater switch means a user-controllable switch or 
user interface which modifies the activation or control of anti-
sweat heaters.
    Automatic defrost means a system in which the defrost cycle is 
automatically initiated and terminated, with resumption of normal 
refrigeration at the conclusion of the defrost operation. The system 
automatically prevents the permanent formation of frost on all 
refrigerated surfaces.
    Automatic icemaker means a device that can be supplied with 
water without user intervention, either from a pressurized water 
supply system or by transfer from a water reservoir located inside 
the cabinet, that automatically produces, harvests, and stores ice 
in a storage bin, with means to automatically interrupt the 
harvesting operation when the ice storage bin is filled to a pre-
determined level.
    Cellar compartment means a refrigerated compartment within a 
consumer refrigeration product that is capable of maintaining 
compartment temperatures either (a) no lower than 39[emsp14][deg]F 
(3.9 [deg]C), or (b) in a range that extends no lower than 
37[emsp14][deg]F (2.8 [deg]C) but at least as high as 
60[emsp14][deg]F (15.6 [deg]C) as determined according to the 
provisions in Sec.  429.14(c)(2) or Sec.  429.61(c)(2).
    Compartment means either:
    (a) A space within a refrigeration product cabinet that is 
enclosed when all product doors are closed and that has no 
subdividing barriers that divide the space. A subdividing barrier is 
a solid (non-perforated) barrier that may contain thermal insulation 
and is sealed around all of its edges or has edge gaps insufficient 
to allow thermal convection transfer from one side to the other 
sufficient to equilibrate temperatures on the two sides; or
    (b) All of the enclosed spaces within a refrigeration product 
cabinet that provide the same type of storage, for instance fresh 
food, freezer, or cellar.
    Complete temperature cycle means a time period defined based 
upon the cycling of compartment temperature that starts when the 
compartment temperature is at a maximum and ends when the 
compartment temperature returns to an equivalent maximum (within 
0.5[emsp14][deg]F of the starting temperature), having in the 
interim fallen to a minimum and subsequently risen again to reach 
the second maximum. Alternatively, a complete temperature cycle can 
be defined to start when the compartment temperature is at a minimum 
and ends when the compartment temperature returns to an equivalent 
minimum (within 0.5[emsp14][deg]F of the starting temperature), 
having in the interim risen to a maximum and subsequently fallen 
again to reach the second minimum.
    Cycle means a 24-hour period for which the energy use of a 
freezer is calculated based on the consumer activated compartment 
temperature controls being set to maintain the standardized 
temperatures (see section 3.2).
    Cycle type means the set of test conditions having the 
calculated effect of operating a freezer for a period of 24 hours, 
with the consumer-activated controls, other than those that control 
compartment temperatures, set to establish various operating 
characteristics.
    HRF-1-2008 means AHAM Standard HRF-1-2008, Association of Home 
Appliance Manufacturers, Energy and Internal Volume of Refrigerating 
Appliances (2008), including Errata to Energy and Internal Volume of 
Refrigerating Appliances, Correction Sheet issued November 17, 2009. 
Only sections of HRF-1-2008 (incorporated by reference; see Sec.  
430.3) specifically referenced in this test procedure are part of 
this test procedure. In cases where there is a conflict, the 
language of the test procedure in this appendix takes precedence 
over HRF-1-2008.
    Ice storage bin means a container in which ice can be stored.
    Long-time automatic defrost means an automatic defrost system 
whose successive defrost cycles are separated by 14 hours or more of 
compressor operating time.
    Precooling means operating a refrigeration system before 
initiation of a defrost cycle to reduce one or more compartment 
temperatures significantly (more than 0.5[emsp14][deg]F) below its 
minimum during stable operation between defrosts.
    Recovery means operating a refrigeration system after the 
conclusion of a defrost cycle to reduce the temperature of one or 
more compartments to the temperature range that the compartment(s) 
exhibited during stable operation between defrosts.
    Separate auxiliary compartment means a separate freezer or 
cellar compartment that is not the primary freezer or primary cellar 
compartment. Access to a separate auxiliary compartment is through a 
separate exterior door or doors rather than through the door or 
doors of another compartment. Separate auxiliary freezer 
compartments may not be larger than the primary freezer compartment 
and separate auxiliary cellar compartments may not be larger than 
the primary cellar compartment.
    Special compartment means any compartment without doors directly 
accessible from the exterior, and with a separate temperature 
control that is not convertible from the fresh food temperature 
range to the freezer or cellar temperature ranges.
    Stable operation means operation after steady-state conditions 
have been achieved but excluding any events associated with defrost 
cycles. During stable operation the average rate of change of 
compartment temperatures must not exceed 0.042[emsp14][deg]F (0.023 
[deg]C) per hour for all compartment temperatures. Such a 
calculation performed for compartment temperatures at any two times, 
or for any two periods of time comprising complete cycles, during 
stable operation must meet this requirement.
    (a) If compartment temperatures do not cycle, the relevant 
calculation shall be the difference between the temperatures at two 
points in time divided by the difference, in hours, between those 
points in time.
    (b) If compartment temperatures cycle as a result of compressor 
cycling or other cycling operation of any system component (e.g., a 
damper, fan, heater, etc.), the relevant calculation shall be the 
difference between compartment temperature averages evaluated for 
the whole compressor cycles or complete temperature cycles divided 
by the difference, in hours, between either the starts, ends, or 
mid-times of the two cycles.
    Stabilization period means the total period of time during which 
steady-state conditions are being attained or evaluated.
    Standard cycle means the cycle type in which the anti-sweat 
heater switch, when provided, is set in the highest energy-consuming 
position.
    Through-the-door ice/water dispenser means a device incorporated 
within the cabinet, but outside the boundary of the refrigerated 
space, that delivers to the user on demand ice and may also deliver 
water from within the refrigerated space without opening an exterior 
door. This definition includes dispensers that are capable of 
dispensing ice and water or ice only.
    Variable defrost control means an automatic defrost system in 
which successive defrost cycles are determined by an operating 
condition variable or variables other than solely compressor 
operating time. This includes any electrical or mechanical device 
performing this function. A control scheme that changes the defrost 
interval from a fixed length to an extended length (without any 
intermediate steps) is not considered a variable defrost control. A 
variable defrost control feature predicts the accumulation of frost 
on the evaporator and react accordingly. Therefore, the times 
between defrost must vary with different usage patterns and include 
a continuum of periods between defrosts as inputs vary.

2. Test Conditions

* * * * *
    2.3 Anti-Sweat Heaters. The anti-sweat heater switch is to be on 
during one test and off during a second test. In the case of a 
freezer with variable anti-sweat heater control, the standard cycle 
energy use shall be the result of the calculation described in 6.2.2 
of this appendix.
* * * * *
    2.5 Special compartments shall be tested with controls set to 
provide the coldest temperature. However, for special compartments 
in which temperature control is achieved using the addition of heat 
(including resistive electric heating, refrigeration system waste 
heat, or heat from any other source, but excluding the transfer of 
air from another part of the interior of the product) for any part 
of the controllable temperature range of that compartment, the 
product energy use shall be determined by averaging two sets of 
tests. The first set of tests shall be conducted with such special 
compartments at their coldest settings, and the second set of tests 
at their warmest settings. The requirements for the warmest or 
coldest temperature settings of this section do not apply to 
features or functions associated with temperature control (such as 
quick freeze) that are initiated manually and terminated 
automatically within 168 hours.
    Cellar compartments with their own temperature control that are 
a part of freezers

[[Page 74947]]

shall be tested according to the requirements for special 
compartments as described in this section.
    Moveable subdividing barriers (see compartment definition (a) in 
section 1 of this appendix) that separate compartments of different 
types (e.g., freezer on one side and cellar on the other side) shall 
be placed in the median position. If such a subdividing barrier has 
an even number of positions, the near-median position representing 
the smallest volume of the warmer compartment(s) shall be used.
* * * * *

3. Test Control Settings

* * * * *
    3.2.1 Temperature Control Settings and Tests to Use for Energy 
Use Calculations.
    3.2.1.1 Setting Temperature Controls. For mechanical control 
systems, (a) knob detents shall be mechanically defeated if 
necessary to attain a median setting, and (b) the warmest and 
coldest settings shall correspond to the positions in which the 
indicator is aligned with control symbols indicating the warmest and 
coldest settings. For electronic control systems, the test shall be 
performed with all compartment temperature controls set at the 
average of the coldest and warmest settings; if there is no setting 
equal to this average, the setting closest to the average shall be 
used. If there are two such settings equally close to the average, 
the higher of these temperature control settings shall be used.
    3.2.1.2 Test Sequence. A first test shall be performed with all 
temperature controls set at their median position midway between 
their warmest and coldest settings. A second test shall be performed 
with all controls set at either their warmest or their coldest 
setting (not electrically or mechanically bypassed), whichever is 
appropriate, to attempt to achieve compartment temperatures measured 
during the two tests that bound (i.e., one is above and one is 
below) the standardized temperature.
    3.2.1.3 Tests to Use for Energy Use Calculations. If the 
compartment temperatures measured during these two tests bound the 
standardized temperature, then these test results shall be used to 
determine energy consumption. If the compartment temperature 
measured with all controls set at their coldest setting is above the 
standardized temperature, energy use shall be calculated based on 
tests conducted with the temperature controls in the cold setting 
for the first test and in the warm setting for the second test, 
subject to the restriction that (a) the compartment temperature must 
be warmer for the test conducted with the controls set in the warm 
position than its measurement with the controls set in the cold 
position, and (b) the measured energy use for the warm position must 
be lower than the measured energy for the cold position. If 
condition (a) or (b) are not met, the manufacturer must submit a 
petition for a waiver (see section 7 of this appendix). If the 
compartment temperature measured with all controls set at their 
warmest setting is below the standardized temperature, then the 
result of this test alone will be used to determine energy 
consumption. Also see Table 1 of this appendix, which summarizes 
these requirements.

                                   Table 1--Temperature Settings for Freezers
----------------------------------------------------------------------------------------------------------------
                    First test                                   Second test
-----------------------------------------------------------------------------------------   Energy calculation
            Settings                  Results            Settings           Results              based on:
----------------------------------------------------------------------------------------------------------------
Mid............................  Low..............  Warm.............  Low..............  Second Test Only.
                                                                       High.............  First and Second
                                                                                           Tests.
                                 High.............  Cold.............  Low..............  First and Second
                                                                                           Tests.
                                                                       High.............  Cold- and Warm-Setting
                                                                                           Tests*.
----------------------------------------------------------------------------------------------------------------
* If compartment temperature is warmer and energy use is lower for the warm-setting test.

* * * * *

5. Test Measurements

    5.1 Temperature Measurements.
* * * * *
    (b) If the interior arrangements of the unit under test do not 
conform with those shown in Figure 5.2 of HRF-1-2008, the unit must 
be tested by relocating the temperature sensors from the locations 
specified in the figures to avoid interference with hardware or 
components within the unit, in which case the specific locations 
used for the temperature sensors shall be noted in the test data 
records maintained by the manufacturer in accordance with 10 CFR 
429.71, and the certification report shall indicate that non-
standard sensor locations were used. If any temperature sensor is 
relocated by any amount from the location prescribed in Figure 5.2 
of HRF-1-2008 in order to maintain a minimum 1-inch air space from 
adjustable shelves or other components that could be relocated by 
the consumer, except in cases in which the Figures prescribe a 
temperature sensor location within 1 inch of a shelf or similar 
feature (e.g., sensor T<INF>3</INF> in Figure 5-1), this constitutes 
a relocation of temperature sensors that must be recorded in the 
test data and reported in the certification report as described 
above.
* * * * *
    5.1.3 Freezer Compartment Temperature. The freezer compartment 
temperature shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.014


Where:

F is the total number of applicable freezer compartments, which 
include the primary freezer compartment and any number of separate 
auxiliary freezer compartments;
TF<INF>i</INF> is the compartment temperature of freezer compartment 
``i'' determined in accordance with section 5.1.2 of this appendix; 
and
VF<INF>i</INF> is the volume of freezer compartment ``i''.
* * * * *
    5.3 Volume Measurements. (a) The unit's total refrigerated 
volume, VT, shall be measured in accordance with HRF-1-2008, 
(incorporated by reference; see Sec.  430.3), section 3.30 and 
sections 4.2 through 4.3. The measured volume shall include all 
spaces within the insulated volume of each compartment except for 
the volumes that must be deducted in accordance with section 4.2.2 
of HRF-1-2008, as provided in paragraph (b) of this section, and be 
calculated equivalent to:

VT = VF + VC

Where:

VT = total refrigerated volume in cubic feet;
VF = freezer compartment volume in cubic feet; and
VC = cellar compartment volume in cubic feet, for freezers with 
cellar compartments.

    (b) The following component volumes shall not be included in the 
compartment volume measurements: Icemaker compartment insulation 
(e.g., insulation isolating the icemaker compartment from the fresh 
food compartment of a product with a bottom-mounted freezer with 
through-the-door ice service), fountain recess, dispenser 
insulation, and ice chute (if there is a plug, cover, or cap over 
the chute per Figure 4-2 of HRF-1-2008). The following component 
volumes shall be included in the compartment volume measurements: 
Icemaker auger motor (if housed inside the insulated space of the 
cabinet), icemaker kit, ice storage bin, and ice chute (up to the 
dispenser flap, if there is no plug, cover, or cap over the ice 
chute per Figure 4-3 of HRF-1-2008).
    (c) Total refrigerated volume is determined by physical 
measurement of the test unit. Measurements and calculations used to 
determine the total refrigerated volume shall be retained as part of 
the test records underlying the certification of the basic model in 
accordance with 10 CFR 429.71.
    (d) Compartment classification shall be based on subdivision of 
the refrigerated volume into zones separated from each other by 
subdividing barriers: No evaluated compartment shall be a zone of a 
larger compartment unless the zone is separated

[[Page 74948]]

from the remainder of the larger compartment by subdividing 
barriers; if there are no such subdividing barriers within the 
larger compartment, the larger compartment must be evaluated as a 
single compartment rather than as multiple compartments. If the 
cabinet contains a moveable subdividing barrier, it must be placed 
as described in section 2.5 of this appendix.
    (e) Freezer and cellar compartment volumes shall be calculated 
and recorded to the nearest 0.01 cubic feet. Total refrigerated 
volume shall be calculated and recorded to the nearest 0.1 cubic 
feet.

6. Calculation of Derived Results From Test Measurements

    6.1 Adjusted Total Volume. The adjusted total volume of each 
tested unit must be determined based upon the volume measured in 
section 5.3 using the following calculations. Where volume 
measurements for the freezer and cellar compartment are recorded in 
liters, the measured volume must be converted to cubic feet and 
rounded to the nearest 0.01 cubic foot prior to calculating the 
adjusted volume. Adjusted total volume shall be calculated and 
recorded to the nearest 0.1 cubic feet. The adjusted total volume, 
AV, for freezers under test shall be defined as:

AV = (VF x CF) + (VC x CC)

Where:

AV = adjusted total volume in cubic feet;
VF and VC are defined in section 5.3 of this appendix;
CF = dimensionless correction factor of 1.76 for freezer 
compartments; and
CC = dimensional correction factor of 0.69 for cellar compartments.
* * * * *
    6.2.1 If the compartment temperature is always below 
0.0[emsp14][deg]F (-17.8 [deg]C), the average per-cycle energy 
consumption shall be equivalent to:

E = ET1 + IET

Where:

E = total per-cycle energy consumption in kilowatt-hours per day;
ET is defined in 5.2.1;
The number 1 indicates the test during which the highest compartment 
temperature is measured; and
IET, expressed in kilowatt-hours per cycle, equals 0.23 for a 
product with an automatic icemaker and otherwise equals 0 (zero).

    6.2.2 If one of the compartment temperatures measured for a test 
is greater than 0.0[emsp14][deg]F (17.8 [deg]C), the average per-
cycle energy consumption shall be equivalent to:

E = ET1 + ((ET2 - ET1) x (0.0 - TF1)/(TF2 - TF1)) + IET

Where:

E and IET are defined in 6.2.1 and ET is defined in 5.2.1;
TF = freezer compartment temperature determined according to section 
5.1.3 of this appendix in degrees F;
The numbers 1 and 2 indicate measurements taken during the two tests 
to be used to calculate energy consumption, as specified in section 
3 of this appendix; and
0.0 = standardized compartment temperature in degrees F.
* * * * *

7. Test Procedure Waivers

    To the extent that the procedures contained in this appendix do 
not provide a means for determining the energy consumption of a 
basic model, a manufacturer must obtain a waiver under 10 CFR 430.27 
to establish an acceptable test procedure for each such basic model. 
Such instances could, for example, include situations where the test 
set-up for a particular basic model is not clearly defined by the 
provisions of section 2. For details regarding the criteria and 
procedures for obtaining a waiver, please refer to 10 CFR 430.27.

Appendix B1--[Removed]

0
13. Remove appendix B1 to subpart B.
0
14. Add appendix BB to subpart B to read as follows:

Appendix BB to Subpart B of Part 430--Uniform Test Method for Measuring 
the Energy Consumption of Ice Makers

1. Definitions

    Harvest means the process of freeing or removing ice pieces from 
an ice maker icemaking mold or evaporator.
    Harvest rate means the amount of ice (at 32[emsp14][deg]F (0 
[deg]C)) in pounds produced per 24 hours.
    HRF-1-2008 means AHAM Standard HRF-1-2008, Association of Home 
Appliance Manufacturers, Energy and Internal Volume of Refrigerating 
Appliances (2008), including Errata to Energy and Internal Volume of 
Refrigerating Appliances, Correction Sheet issued November 17, 2009. 
Only sections of HRF-1-2008 (incorporated by reference; see Sec.  
430.3) specifically referenced in this test procedure are part of 
this test procedure. In cases where there is a conflict, the 
language of the test procedure in this appendix takes precedence 
over HRF-1-2008.
    Ice hardness factor means the latent heat capacity of harvested 
ice, in British thermal units per pound of ice (Btu/lb), divided by 
144 Btu/lb, expressed as a percentage.
    Ice storage bin means a container for ice storage that is part 
of an ice maker.
    Icemaking cycle, defined for batch-type ice makers, means the 
period of time required to produce and harvest one batch of ice. The 
start and end of consecutive icemaking cycles are defined to occur 
at the end of harvest, when ice is removed from the ice maker's 
evaporator or icemaking mold.
    Replacement cycle, defined for uncooled-storage ice makers, 
including portable ice makers, means one or more consecutive 
icemaking cycles for batch-type ice makers or a continuous period of 
icemaking for continuous-type ice makers, initiated automatically to 
refill the ice storage bin after a period of ice meltage and 
terminated automatically when the bin is full again.

2. Test Conditions and Set-Up.

    2.1 Ambient Temperature Measurement. Temperature measuring 
devices shall be shielded so that indicated temperatures are not 
affected by the operation of the condensing unit or adjacent units.
    2.1.1 Ambient Temperature.
    2.1.1.1 The ambient temperature shall be 72 <plus-minus> 
1[emsp14][deg]F (22.2 [deg]C) during the stabilization period (see 
section 2.9 of this appendix) and the test period.
    2.1.1.2 For ice makers that are not portable ice makers, the 
ambient temperature shall be recorded at points located 3 feet (91.5 
cm) above the floor and 10 inches (25.4 cm) from the center of the 
two sides of the unit under test.
    2.1.1.3 For portable ice makers, the ambient temperature shall 
be recorded at points located level with the top of the unit under 
test and 10 inches (25.4 cm) from the center of the two sides of the 
unit under test.
    2.1.2 Ambient Temperature Gradient. The test room vertical 
ambient temperature gradient in any foot of vertical distance from 2 
inches (5.1 cm) above the floor or supporting platform to a height 
of 7 feet (2.2 m) or to a height 1 foot (30.5 cm) above the top of 
the unit under test, whichever is greater, is not to exceed 
0.5[emsp14][deg]F per foot (0.9 [deg]C per meter). The vertical 
ambient temperature gradient at locations 10 inches (25.4 cm) out 
from the centers of the two sides of the unit being tested is to be 
maintained during the test. To demonstrate that this requirement has 
been met, test data must include measurements taken using 
temperature sensors at locations 2 inches (5.1 cm) and 36 inches 
(91.4 cm) above the floor or supporting platform and at a height of 
1 foot (30.5 cm) above the unit under test.
    2.2 Operational Conditions. The ice maker shall be installed and 
its operating conditions maintained in accordance with HRF-1-2008 
(incorporated by reference; see Sec.  430.3), section 5.3 through 
section 5.5.5.1 (excluding sections 5.5.2(a), (b), (c), (d), (g), 
(h), (j), (k), and (m), and section 5.5.3). Exceptions and 
clarifications to the cited sections of HRF-1-2008 are noted in 
sections 2.3 through 2.8 of this appendix.
    2.3 Set-up. The ice maker shall be assembled and set up in 
accordance with the printed consumer instructions supplied with the 
cabinet. Set-up of the ice maker shall not deviate from these 
instructions, unless explicitly required or allowed by this test 
procedure. Specific required or allowed deviations from such set-up 
include the following:
    (a) Clearance requirements from surfaces of the product shall be 
as described in section 2.4 of this appendix;
    (b) The electric power supply shall be as described in HRF-1-
2008 (incorporated by reference; see Sec.  430.3), section 5.5.1;
    (c) Temperature control settings for testing shall be as 
described in section 2.7 of this appendix.
    (d) The product does not need to be anchored or otherwise 
secured to prevent tipping during energy testing; and
    (e) If the product dispenses ice, all the product's chutes and 
throats required for the delivery of ice shall be free of packing, 
covers, or other blockages that may be fitted for shipping or when 
the ice maker is not in use.
    For cases in which set-up is not clearly defined by this test 
procedure, manufacturers

[[Page 74949]]

must submit a petition for a waiver (see section 7).
    2.4 Rear Clearance.
    (a) General. The space between the lowest edge of the rear plane 
of the cabinet and a vertical surface (the test room wall or 
simulated wall) shall be the minimum distance in accordance with the 
manufacturer's instructions, unless other provisions of this section 
apply. The rear plane shall be considered to be the largest flat 
surface at the rear of the cabinet, excluding features that protrude 
beyond this surface, such as brackets, the compressor, or 
compressors.
    (b) The clearance shall not be greater than 2 inches (51 mm) 
from the lowest edge of the rear plane to the vertical surface, 
unless the provisions of subsection (c) of this section apply.
    (c) If permanent rear spacers or other components that protrude 
beyond the rear plane extend further than the 2-inch (51 mm) 
distance, or if the highest edge of the rear plane is in contact 
with the vertical surface when the unit is positioned with the 
lowest edge of the rear plane at or further than the 2-inch (51 mm) 
distance from the vertical surface, the appliance shall be located 
with the spacers or other components protruding beyond the rear 
plane, or the highest edge of the rear plane in contact with the 
vertical surface.
    (d) Rear-mounted condensers. If the product has a flat rear-
wall-mounted condenser (i.e., a rear-wall-mounted condenser with all 
refrigerant tube centerlines within 0.25 inches (6.4 mm) of the 
condenser plane), and the area of the condenser plane represents at 
least 25% of the total area of the rear wall of the cabinet, then 
the spacing to the vertical surface may be measured from the lowest 
edge of the condenser plane.
    2.5 Inlet Water.
    2.5.1 For ice makers that are not portable ice makers, 
connection of water lines is required. If the product provides for 
installation of a water filter, a water filter shall be installed as 
recommended by the printed consumer instructions supplied with the 
cabinet. Inlet water temperature shall be 72 <plus-minus> 
2[emsp14][deg]F. The water supply system shall be designed to assure 
that inlet water temperature stays within this specified range at 
all times during the test. Inlet water pressure shall be 60 <plus-
minus> 15 psig while the water is flowing.
    2.5.2 For portable ice makers, the water reservoir shall be 
completely filled prior to the start of the test with water at a 
temperature of 55 <plus-minus> 2[emsp14][deg]F.
    2.6 Ice Piece Size Control. If the ice maker has a control for 
adjusting the size of ice pieces that is described in the printed 
consumer instructions supplied with the cabinet as being intended 
for user adjustment, set this control at the largest ice piece size 
setting.
    2.7 Temperature Control Settings. For products that have user-
operable temperature controls, set the temperature controls in the 
median position for all parts of the test. The ice maker internal 
temperature shall be measured with a weighted thermocouple as 
described in HRF-1-2008 (incorporated by reference; see Sec.  430.3) 
section 5.5.4, located such that the temperature sensor is 1 inch 
(2.5 cm) above the typical fill level of the ice bin as close to the 
center of the ice bin as possible without interfering with the 
falling of ice from the mold or evaporator into the bin.
    2.8 Drain Lines. For ice makers with drain outlets, install 
drain lines using pipe or tubing material as specified in the 
printed consumer instructions supplied with the product. Unless 
otherwise required by these consumer instructions, run drain lines 
downward from the drain outlet. Use of optional pumps for pumping 
drain water to higher elevations is not permitted. If the ice maker 
has integrated into its cabinet a pump whose purpose according to 
the printed consumer instructions supplied with the product is to 
pump water to higher elevations, and if the installation 
instructions indicate that this pump must always be connected during 
use, such a pump shall be utilized during the test. However, if 
installation instructions indicate that this pump can be switched 
off or disconnected during use, such a pump shall be switched off or 
disconnected for the test.
    2.9 Steady-State Condition. Steady-state conditions exist if the 
ice maker internal temperature measurements are not changing at a 
rate greater than 0.042[emsp14][deg]F per hour as determined by 
comparing the average of the measurements during a two-hour period 
if no compressor cycling occurs or during a number of complete 
repetitive compressor cycles occurring through a period of no less 
than 2 hours to the average over an equivalent time period with 3 
hours elapsing between the two measurement periods.
    2.10 Data Collection. Data collection frequency for 
temperatures, power, and energy shall be no less than once per 
minute.
    2.11 Icemaking Cycle Indication for Batch-Type Ice Makers. 
Icemaking cycles shall be determined from collected power input data 
by identifying the time when (a) the compressor power input level 
changes after completion of the harvest cycle, or (b) the electric 
harvest heater is de-energized at the end of the harvest cycle. If 
icemaking cycles cannot be identified by examining the electric 
input power data because either the compressor power input does not 
change sufficiently at the end of a harvest cycle or ice is made 
using a mold without a mold heater of 50W or greater power input, 
use one of the following measurement approaches to indicate the 
start and end of icemaker cycles at a data acquisition frequency 
interval no less than the data acquisition frequency used for the 
test. The method used must be recorded in the test data underlying 
the certification of the basic model that the manufacturer is 
required to retain in accordance with 10 CFR 429.71.
    2.11.1 Mold or Evaporator Temperature. Measure icemaker mold or 
evaporator temperature during the test with a temperature sensor 
adhered to the bottom of the icemaker mold or a location on the 
evaporator. Ensure that the temperature sensor is installed so that 
the icemaker operation, including operations such as twisting of the 
icemaker mold and ice dropping into the ice bin, will not be impeded 
by the temperature sensor and its connecting wire(s), and that 
neither the temperature sensor nor its connecting wire(s) will be 
dislodged or damaged by icemaker operation.
    2.11.2 Water Supply Temperature. Measure the temperature of the 
water at any location in the water supply line. If the temperature 
changes consistently and measurably (within the required tolerance 
of water supply temperature as specified in section 2.5.1 of this 
appendix) when the icemaker water supply valve opens, this change 
may be used to provide an indication of when a new icemaker cycle 
has started.
    2.11.3 Solenoid Valve Activation. Measure power input, voltage, 
or current supplied to the icemaker water supply solenoid valve to 
indicate when the valve is energized. Make this measurement at a 
frequency sufficient to ensure indication of valve activation, or 
use an event counter to track valve activation events.

3. Icemaking Test

    3.1 Special Apparatus.
    3.1.1 Perforated Container. The container used to collect the 
harvested ice shall be shaped and sized as necessary to collect all 
harvested ice produced by the unit under test between the time of 
the container's insertion into the ice bin and the termination of 
the icemaking test period. The container shall be perforated such 
that the ice produced by the unit under test cannot fall through the 
perforations and the water hold-up weight is no more than 1.0 
percent of the weight of the smallest amount of ice collected and 
weighed using the container. The water hold-up weight is the maximum 
weight of water that can be measured as follows: (i) Immerse the 
container in water oriented as it would be for catching ice, (ii) 
gently lift the container out of the water and allow to drain for 30 
seconds without shaking, (iii) weigh the container and the held-up 
water, and (iv) subtract the container's dry weight.
    3.1.2 Ice Mass Measurement Scale. Use a scale having accuracy 
and precision no greater than 1 percent of the measured quantity.
    3.2 Icemaking Test Procedure.
    3.2.1 Batch-Type Ice Makers.
    3.2.1.1 Stabilization and Start of Icemaking Test Period. Verify 
that the ice storage bin is empty and initiate icemaking. After a 
two-hour stabilization period, wait till the next batch of ice drops 
into the storage bin. The icemaking test period starts when this ice 
has dropped.
    3.2.1.2 Icemaking Test Period. Within one minute after the batch 
of ice signaling the end of the stabilization period drops, place a 
perforated container (as specified in section 3.1.1 of this 
appendix) in the ice storage bin, oriented so that it will catch all 
the harvested ice. Each door opening to place the perforated 
container in the unit or to retrieve it shall have a duration of no 
more than 15 seconds. The icemaking test period starts as described 
above and consists of a whole number of icemaking cycles lasting at 
least 6 hours or until the ice storage bin becomes full and ice 
production stops. Remove the container and measure the ice mass 
within two minutes after the last batch of ice

[[Page 74950]]

harvested during the test period drops into the ice storage bin. 
Determine the mass of ice produced, M<INF>ICE</INF>, expressed in 
pounds, by weighing the perforated container when it contains the 
ice made during the test and subtracting the weight of the empty 
perforated container.
    3.2.1.3 Ice Collection with Smaller Container. If a perforated 
container that can hold all of the ice produced during the specified 
icemaking test period cannot be placed into the ice storage bin, use 
a smaller container that can hold the ice produced by at least five 
icemaking cycles. Retrieve the ice multiple times during the test 
period, no more frequently than once every five icemaking cycles. 
During each time the ice is retrieved, weigh and record the weight 
of the ice and the container, transfer the ice to the ice storage 
bin, and replace the container in the bin, allowing the ice maker 
door to be open for a total of no more than 15 seconds for each 
retrieval and weighing of ice. Determine the mass of ice produced 
during each retrieval of ice, M<INF>ICE--i</INF>G1T1, expressed in 
pounds, by subtracting the weight of the empty perforated container 
from the individual measurement. Determine the mass of ice produced 
MG5T2ICEG1T1, expressed in pounds, by summing the individual 
calculations MG5T2ICE_i.
    3.2.2 Continuous-type Ice Makers.
    3.2.2.1 Stabilization and Start of Icemaking Test Period. Verify 
that the ice storage bin is empty and initiate icemaking. After a 
two-hour stabilization period, place a perforated container (as 
specified in section 3.1.1 of this appendix) in the ice storage bin, 
oriented so that it will catch all the harvested ice. Record the 
time of container insertion and correlate it with the collected 
power input data.
    3.2.2.2 Icemaking Test Period. The icemaking test period lasts 6 
hours or until the ice storage bin becomes full and ice production 
stops. Remove the container and measure the ice mass at the end of 
the test period or within two minutes after ice production stops. 
Determine the mass of ice produced, M<INF>ICE</INF>, expressed in 
pounds, by weighing the perforated container when it contains the 
ice made during the test and subtracting the weight of the empty 
perforated container.
    3.2.2.3 Ice Collection with Smaller Container. If a perforated 
container that can hold all of the ice produced during the specified 
icemaking test period cannot be placed into the ice storage bin, use 
a smaller container that can hold the ice produced in at least an 
hour of ice production. Retrieve the ice multiple times during the 
test period, no more frequently than once per hour. During each time 
the ice is retrieved, weigh and record the weight of the ice and the 
container, transfer the ice to the ice storage bin, and replace the 
container in the bin, allowing the ice maker door to be open for a 
total of no more than 15 seconds for each retrieval and weighing of 
ice. Determine the mass of ice produced during each retrieval of 
ice, M<INF>ICE--i</INF>G1T1, expressed in pounds, by subtracting the 
weight of the empty perforated container from the individual 
measurement. Determine the mass of ice produced MG5T2ICEG1T1, 
expressed in pounds, by summing the individual calculations 
MG5T2ICE_i.

4. Ice Storage Test

    4.1 Ice Storage Test for Cooled-Storage Ice Makers.
    4.1.1 Stabilization. After the icemaking test period ends and 
the mass of harvested ice has been determined, place the harvested 
ice back into the ice storage bin. Allow the ice maker to produce 
ice until the storage bin is full and ice production stops 
automatically. Wait until steady-state conditions have been 
confirmed, as defined in section 2.9 of this appendix. The ice 
storage bin shall not be emptied of ice.
    4.1.2 Ice Storage Test Period. The test period shall start when 
steady-state conditions have been achieved and shall be no less than 
3 hours in duration. During the test period, the compressor motor 
shall complete two or more whole compressor cycles. (A compressor 
cycle is a complete ``on'' and a complete ``off'' period of the 
motor.) If no ``off'' cycling will occur, the test period shall be 3 
hours.
    4.2 Ice Storage Test for Uncooled-Storage Ice Makers.
    4.2.1 After the icemaking test period ends and the mass of ice 
has been determined, place the ice back into the ice storage bin. 
Allow the ice maker to operate until the storage bin is full and ice 
production stops automatically.
    4.2.2 Ice Storage Test Period for Batch-type Uncooled-Storage 
Ice Makers. The ice storage test period shall start when ice 
production stops automatically after the measured ice has been 
placed back into the ice storage bin. If ice production is not 
occurring after replacement of the ice, the test period shall start 
at the end of the first replacement cycle. The ice storage bin shall 
not be emptied of ice. The test period shall be no less than 48 
hours in duration and shall end at the end of a replacement cycle.
    4.2.3 Ice Storage Test Period for Continuous-type Uncooled-
Storage Ice Makers. The ice storage test period shall start when ice 
production stops automatically after the measured ice has been 
placed back into the ice storage bin. If ice production is not 
occurring after replacement of the ice, the test period shall start 
at the end of the first replacement cycle. The ice storage bin shall 
not be emptied of ice. The test period shall be no less than 48 
hours in duration and shall end at the end of a period of ice 
production.

5. Ice Hardness (Continuous-Type Ice Makers Only).

    For continuous-type ice makers, the ice hardness factor, 
I<INF>H</INF>, shall be set equal to 0.85. Alternatively, the ice 
hardness factor may be measured according to the procedure in Annex 
A: Method of Calorimetry in AHSI/ASHRAE 29-2009 (incorporated by 
reference; see Sec.  430.3).

6. Calculations

    6.1 Energy Use per Ice Mass, EIM, expressed in kilowatt-hours 
per pound, shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.015

 Where:

EI is the energy in kWh measured for the icemaking test period as 
described in section 3.2.1 or 3.2.2. of this appendix;
M<INF>ICE</INF> is the ice mass in pounds, measured for the 
icemaking test period as described in section 3.2.1 or 3.2.2 of this 
appendix; and
I<INF>HAF</INF> is the ice hardness adjustment factor, a 
dimensionless value which shall be equal to 1.0 for batch-type ice 
makers and calculated for continuous-type ice makers as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.016

Where:

I<INF>H</INF> is the ice hardness factor, determined as specified in 
section 5 of this appendix.

    6.2 Harvest Rate. Harvest rate, H, expressed in pounds of ice 
per day, shall be calculated and rounded to the nearest 0.1 pound 
per day as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.017

Where:

M<INF>ICE</INF> is defined in section 6.1;
TI is the icemaking test period in minutes as described in section 
3.2.1 or 3.2.2 of this appendix; and
1,440 is the number of minutes in one day.

    6.3 Daily Energy Use.
    6.3.1 For ice makers with a harvest rate greater than 4 pounds 
of ice per day, daily energy use E<INF>T</INF>, expressed in 
kilowatt-hours per day, shall be calculated as:
[GRAPHIC] [TIFF OMITTED] TP16DE14.018

Where:

M<INF>ICE</INF> is defined in section 6.1 of this appendix;
EIM is calculated as described in section 6.1 of this appendix;
ES is the energy use in kWh for the ice storage test period as 
described in section 4.1.2, 4.2.2, or 4.2.3 of this appendix;

[[Page 74951]]

TS is the ice storage test period in minutes as described in section 
4.1.2, 4.2.2 or 4.2.3 of this appendix;
1,440 and TI are defined in section 6.2 of this appendix;
4 is the average daily ice consumption rate in pounds per day; and
K is a dimensionless correction factor equal to 0.5 for portable ice 
makers and 1.0 for non-portable ice makers to adjust for average 
household usage.

    6.3.2 For ice makers with a harvest rate less than or equal to 4 
pounds of ice per day, daily energy use E<INF>T</INF>, expressed in 
kilowatt-hours per day, shall be calculated as:

ET = 4 x EIM x K

Where:

4 is defined in section 6.3.1 of this appendix;
EIM is calculated as described in section 6.1 of this appendix; and
K is defined in section 6.3.1 of this appendix.

7. Test Procedure Waivers

    To the extent that the procedures contained in this appendix do 
not provide a means for determining the energy consumption of an ice 
maker, a manufacturer must obtain a waiver under 10 CFR 430.27 to 
establish an acceptable test procedure for each such product. Such 
instances could, for example, include situations where the test set-
up for a particular ice maker basic model is not clearly defined by 
the provisions of section 2. For details regarding the criteria and 
procedures for obtaining a waiver, please refer to 10 CFR 430.27.

0
15. Amend section 430.32 by revising paragraph (a) to read as follows:


Sec.  430.32  Energy and water conservation standards and their 
compliance dates.

    (a) Refrigerators/refrigerator-freezers/freezers. These standards 
do not apply to refrigerators and refrigerator-freezers with total 
refrigerated volume exceeding 39 cubic feet (1,104 liters) or freezers 
with total refrigerated volume exceeding 30 cubic feet (850 liters). 
The energy standards as determined by the equations of the following 
table(s) shall be rounded off to the nearest kWh per year. If the 
equation calculation is halfway between the nearest two kWh per year 
values, the standard shall be rounded up to the higher of these values.
    The following standards remain in effect from July 1, 2001 until 
September 15, 2014:

------------------------------------------------------------------------
                                         Energy standard equations for
            Product class                maximum  energy use  (kWh/yr)
------------------------------------------------------------------------
1. Refrigerators and refrigerator-     8.82AV + 248.4
 freezers with manual defrost.         0.31av + 248.4
2. Refrigerator-freezers_partial       8.82AV + 248.4
 automatic defrost.                    0.31av + 248.4
3. Refrigerator-freezers_automatic     9.80AV + 276.0
 defrost with top-mounted freezer      0.35av + 276.0
 without through-the-door ice service
 and all-refrigerator_automatic
 defrost.
4. Refrigerator-freezers_automatic     4.91AV + 507.5
 defrost with side-mounted freezer     0.17av + 507.5
 without through-the-door ice service.
5. Refrigerator-freezers_automatic     4.60AV + 459.0
 defrost with bottom-mounted freezer   0.16av + 459.0
 without through-the-door ice service.
6. Refrigerator-freezers_automatic     10.20AV + 356.0
 defrost with top-mounted freezer      0.36av + 356.0
 with through-the-door ice service.
7. Refrigerator-freezers_automatic     10.10AV + 406.0
 defrost with side-mounted freezer     0.36av + 406.0
 with through-the-door ice service.
8. Upright freezers with manual        7.55AV + 258.3
 defrost.                              0.27av + 258.3
9. Upright freezers with automatic     12.43AV + 326.1
 defrost.                              0.44av + 326.1
10. Chest freezers and all other       9.88AV + 143.7
 freezers except compact freezers.     0.35av + 143.7
11. Compact refrigerators and          10.70AV + 299.0
 refrigerator-freezers with manual     0.38av + 299.0
 defrost.
12. Compact refrigerator-              7.00AV + 398.0
 freezer_partial automatic defrost.    0.25av + 398.0
13. Compact refrigerator-              12.70AV + 355.0
 freezers_automatic defrost with top-  0.45av + 355.0
 mounted freezer and compact all-
 refrigerator_automatic defrost.
14. Compact refrigerator-              7.60AV + 501.0
 freezers_automatic defrost with side- 0.27av + 501.0
 mounted freezer.
15. Compact refrigerator-              13.10AV + 367.0
 freezers_automatic defrost with       0.46av + 367.0
 bottom-mounted freezer.
16. Compact upright freezers with      9.78AV + 250.8
 manual defrost.                       0.35av + 250.8
17. Compact upright freezers with      11.40AV + 391.0
 automatic defrost.                    0.40av + 391.0
18. Compact chest freezers...........  10.45AV + 152.0
                                       0.37av + 152.0
------------------------------------------------------------------------
AV: Adjusted Volume in ft\3\; av: Adjusted Volume in liters (L).

    The following standards apply to products manufactured starting on 
September 15, 2014:

[[Page 74952]]



----------------------------------------------------------------------------------------------------------------
                                                        Equations for maximum energy use  (kWh/yr)
             Product class              ------------------------------------------------------------------------
                                                 Based on AV  (ft\3\)                  Based on av  (L)
----------------------------------------------------------------------------------------------------------------
1. Refrigerator-freezers and             7.99AV + 225.0                       0.282av + 225.0
 refrigerators other than all-
 refrigerators with manual defrost.
1A. All-refrigerators_manual defrost...  6.79AV + 193.6                       0.240av + 193.6
2. Refrigerator-freezers_partial         7.99AV + 225.0                       0.282av + 225.0
 automatic defrost.
3. Refrigerator-freezers_automatic       8.07AV + 233.7                       0.285av + 233.7
 defrost with top-mounted freezer
 without an automatic icemaker.
3-BI. Built-in refrigerator-             9.15AV + 264.9                       0.323av + 264.9
 freezer_automatic defrost with top-
 mounted freezer without an automatic
 icemaker.
3I. Refrigerator-freezers_automatic      8.07AV + 317.7                       0.285av + 317.7
 defrost with top-mounted freezer with
 an automatic icemaker without through-
 the-door ice service.
3I-BI. Built-in refrigerator-            9.15AV + 348.9                       0.323av + 348.9
 freezers_automatic defrost with top-
 mounted freezer with an automatic
 icemaker without through-the-door ice
 service.
3A. All-refrigerators_automatic defrost  7.07AV + 201.6                       0.250av + 201.6
3A-BI. Built-in All-                     8.02AV + 228.5                       0.283av + 228.5
 refrigerators_automatic defrost.
4. Refrigerator-freezers_automatic       8.51AV + 297.8                       0.301av + 297.8
 defrost with side-mounted freezer
 without an automatic icemaker.
4-BI. Built-In Refrigerator-             10.22AV + 357.4                      0.361av + 357.4
 freezers_automatic defrost with side-
 mounted freezer without an automatic
 icemaker.
4I. Refrigerator-freezers_automatic      8.51AV + 381.8                       0.301av + 381.8
 defrost with side-mounted freezer with
 an automatic icemaker without through-
 the-door ice service.
4I-BI. Built-In Refrigerator-            10.22AV + 441.4                      0.361av + 441.4
 freezers_automatic defrost with side-
 mounted freezer with an automatic
 icemaker without through-the-door ice
 service.
5. Refrigerator-freezers_automatic       8.85AV + 317.0                       0.312av + 317.0
 defrost with bottom-mounted freezer
 without an automatic icemaker.
5-BI. Built-In Refrigerator-             9.40AV + 336.9                       0.332av + 336.9
 freezers_automatic defrost with bottom-
 mounted freezer without an automatic
 icemaker.
5I. Refrigerator-freezers_automatic      8.85AV + 401.0                       0.312av + 401.0
 defrost with bottom-mounted freezer
 with an automatic icemaker without
 through-the-door ice service.
5I-BI. Built-In Refrigerator-            9.40AV + 420.9                       0.332av + 420.9
 freezers_automatic defrost with bottom-
 mounted freezer with an automatic
 icemaker without through-the-door ice
 service.
5A. Refrigerator-freezer_automatic       9.25AV + 475.4                       0.327av + 475.4
 defrost with bottom-mounted freezer
 with through-the-door ice service.
5A-BI. Built-in refrigerator-            9.83AV + 499.9                       0.347av + 499.9
 freezer_automatic defrost with bottom-
 mounted freezer with through-the-door
 ice service.
6. Refrigerator-freezers_automatic       8.40AV + 385.4                       0.297av + 385.4
 defrost with top-mounted freezer with
 through-the-door ice service.
7. Refrigerator-freezers_automatic       8.54AV + 432.8                       0.302av + 432.8
 defrost with side-mounted freezer with
 through-the-door ice service.
7-BI. Built-In Refrigerator-             10.25AV + 502.6                      0.362av + 502.6
 freezers_automatic defrost with side-
 mounted freezer with through-the-door
 ice service.
8. Upright freezers with manual defrost  5.57AV + 193.7                       0.197av + 193.7
9. Upright freezers with automatic       8.62AV + 228.3                       0.305av + 228.3
 defrost without an automatic icemaker.
9I. Upright freezers with automatic      8.62AV + 312.3                       0.305av + 312.3
 defrost with an automatic icemaker.
9-BI. Built-In Upright freezers with     9.86AV + 260.9                       0.348av + 260.9
 automatic defrost without an automatic
 icemaker.
9I-BI. Built-in upright freezers with    9.86AV + 344.9                       0.348av + 344.9
 automatic defrost with an automatic
 icemaker.
10. Chest freezers and all other         7.29AV + 107.8                       0.257av + 107.8
 freezers except compact freezers.
10A. Chest freezers with automatic       10.24AV + 148.1                      0.362av + 148.1
 defrost.
11. Compact refrigerator-freezers and    9.03AV + 252.3                       0.319av + 252.3
 refrigerators other than all-
 refrigerators with manual defrost.
11A. Compact all-refrigerators_manual    7.84AV + 219.1                       0.277av + 219.1
 defrost.
12. Compact refrigerator-                5.91AV + 335.8                       0.209av + 335.8
 freezers_partial automatic defrost.
13. Compact refrigerator-                11.80AV + 339.2                      0.417av + 339.2
 freezers_automatic defrost with top-
 mounted freezer.
13I. Compact refrigerator-               11.80AV + 423.2                      0.417av + 423.2
 freezers_automatic defrost with top-
 mounted freezer with an automatic
 icemaker.
13A. Compact all-                        9.17AV + 259.3                       0.324av + 259.3
 refrigerators_automatic defrost.
14. Compact refrigerator-                6.82AV + 456.9                       0.241av + 456.9
 freezers_automatic defrost with side-
 mounted freezer.
14I. Compact refrigerator-               6.82AV + 540.9                       0.241av + 540.9
 freezers_automatic defrost with side-
 mounted freezer with an automatic
 icemaker.
15. Compact refrigerator-                11.80AV + 339.2                      0.417av + 339.2
 freezers_automatic defrost with bottom-
 mounted freezer.
15I. Compact refrigerator-               11.80AV + 423.2                      0.417av + 423.2
 freezers_automatic defrost with bottom-
 mounted freezer with an automatic
 icemaker.
16. Compact upright freezers with        8.65AV + 225.7                       0.306av + 225.7
 manual defrost.
17. Compact upright freezers with        10.17AV + 351.9                      0.359av + 351.9
 automatic defrost.
18. Compact chest freezers.............  9.25AV + 136.8                       0.327av + 136.8
----------------------------------------------------------------------------------------------------------------
AV = Total adjusted volume, expressed in ft\3\ and rounded to the nearest 0.1 ft\3\, as determined in appendices
  A and B of subpart B of this part.
av = Total adjusted volume, expressed in liters.

[FR Doc. 2014-28789 Filed 12-15-14; 8:45 am]
BILLING CODE 6450-01-P


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