31444 Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 

DEPARTMENT OF ENERGY 

10 CFR Parts 429 and 430 

[Docket No. EERE–2010–BT–TP–0039] 

RIN 1904–AC01 

Energy Conservation Program: Test 

Procedures for Residential 

Dishwashers, Dehumidifiers, and 

Conventional Cooking Products 

(Standby Mode and Off Mode) 

AGENCY: Office of Energy Efficiency and 

Renewable Energy, Department of 

Energy. 

ACTION: Supplemental notice of 

proposed rulemaking (SNOPR). 

SUMMARY: The U.S. Department of 

Energy (DOE) proposes to amend its test 

procedures for residential dishwashers, 

dehumidifiers, and conventional 

cooking products (which includes 

cooktops, ovens, and ranges) to address 

the measurement of active mode fanonly energy use. This SNOPR also 

addresses energy and water use 

associated with dishwasher water 

softeners, the energy test cycle for 

dishwashers with a separate soil-sensing 

cycle, and the normal cycle definition, 

power supply and detergent dosing for 

dishwashers. The proposal would also 

update the industry test method 

specified in the dehumidifier test 

procedure, eliminate measurement of 

gas pilot light energy use in the cooking 

products test procedure, and remove an 

obsolete energy efficiency metric in the 

dishwasher test procedure. 

DATES: DOE will accept comments, data, 

and information regarding this SNOPR 

submitted no later than June 25, 2012. 

See section V, ‘‘Public Participation,’’ 

for details. 

ADDRESSES: Any comments submitted 

must identify the SNOPR for Test 

Procedures for Residential Dishwashers, 

Dehumidifiers, and Conventional 

Cooking Products, and provide docket 

number EERE–2010–BT–TP–0039 and/ 

or Regulatory Information Number (RIN) 

1904-AC01. 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: Res-DW–DehumidCookingProd-2010–TP– 

0039@ee.doe.gov. Include docket 

number EERE–2010–BT–TP–0039 and/ 

or RIN 1904–AC27 in the subject line of 

the message. 

3. Postal Mail: Ms. Brenda Edwards, 

U.S. Department of Energy, Building 

Technologies Program, Mailstop EE–2J, 

1000 Independence Avenue SW., 

Washington, DC, 20585–0121. If 

possible, please submit all items on a 

compact disc (CD), in which case 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, in which case 

it is not necessary to include printed 

copies. 

Written comments regarding the 

burden-hour estimates or other aspects 

of the collection-of-information 

requirements contained in this proposed 

rule may be submitted to Office of 

Energy Efficiency and Renewable 

Energy through the methods listed 

above and by email to 

cwhiteman@omb.eop.gov. 

No telefacsimilies (faxes) will be 

accepted. For detailed instructions on 

submitting comments and additional 

information on the rulemaking process, 

see section V of this document (Public 

Participation). 

Docket: The docket is available for 

review at www.regulations.gov, 

including Federal Register notices, 

public meeting attendee lists and 

transcripts, comments, and other 

supporting documents/materials. All 

documents in the docket are listed in 

the www.regulations.gov index. Not all 

documents listed in the index may be 

publicly available, such as information 

that is exempt from public disclosure. 

A link to the docket web page can be 

found at: www.regulations.gov/ 

#!docketDetail;rpp=10;po=0;D=EERE– 

2010–BT–TP–0039. This web page 

contains a link to the docket for this 

notice on the www.regulations.gov site. 

The www.regulations.gov web page 

contains instructions on how to access 

all documents, including public 

comments, in the docket. See section V 

for information on how to submit 

comments through 

www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: 

Mr. Wes Anderson, U.S. Department 

of Energy, Office of Energy Efficiency 

and Renewable Energy, Building 

Technologies Program, EE–2J, 1000 

Independence Avenue SW., 

Washington, DC 20585–0121. 

Telephone: (202) 586–7335. Email: 

Wes.Anderson@ee.doe.gov. 

Ms. Elizabeth Kohl, U.S. Department 

of Energy, Office of the General Counsel, 

GC–71, 1000 Independence Avenue 

SW., Washington, DC 20585–0121. 

Telephone: (202) 586–7796. Email: 

Elizabeth.Kohl@hq.doe.gov. 

For further information on how to 

submit or review public comments, 

contact Ms. Brenda Edwards, U.S. 

Department of Energy, Office of Energy 

Efficiency and Renewable Energy, 

Building Technologies Program, EE–2J, 

1000 Independence Avenue SW., 

Washington, DC 20585–0121. 

Telephone: (202) 586–2945. Email: 

Brenda.Edwards@ee.doe.gov. 

SUPPLEMENTARY INFORMATION: 

Table of Contents 

I. Authority and Background 

A. General Test Procedure Rulemaking 

Process 

1. Dishwashers 

2. Dehumidifiers 

3. Conventional Cooking Products 

B. Standby Mode and Off Mode 

C. The December 2010 NOPR 

D. The September 2011 SNOPR 

II. Summary of the Supplemental Notice of 

Proposed Rulemaking 

III. Discussion 

A. Fan-Only Mode 

1. Dishwashers 

2. Conventional Cooking Products 

B. Dishwasher Water Softener Regeneration 

C. Calculation of Energy Consumption in 

Active, Standby, and Off Modes 

D. Dishwasher Test Procedure 

Clarifications 

1. Normal Cycle Definition 

2. Power Supply Requirements 

3. Energy Test Cycle Selection 

4. Test Load Specifications and Soiling 

Requirements 

5. Detergent Dosing Specifications 

E. Incorporation by Reference of an 

Updated AHAM Dehumidifier Test 

Procedure 

1. Temperature Measurement Accuracy 

2. Weight Measurement Accuracy 

3. Barometric Pressure Measurement 

Accuracy 

4. Test Room Requirements 

5. Data Recording Intervals 

F. Technical Corrections 

G. Removal of Obsolete Measures of Gas 

Pilot Light Energy Consumption in the 

Conventional Cooking Products Test 

Procedure and of Energy Factor 

Calculations for Dishwashers 

H. Compliance with Other EPCA 

Requirements 

IV. Procedural Issues and Regulatory Review 

V. Public Participation 

A. Submission of Comments 

B. Issues on Which DOE Seeks Comment 

1. Fan-Only Mode 

2. Dishwasher Water Softener Regeneration 

3. Alternative Methodology for Calculating 

Annual Energy Use 

4. Dishwasher Test Procedure 

Clarifications 

5. Updated Dehumidifier Test Procedure 

6. Obsolete Measures of Gas Pilot Light 

Energy Use 

7. Test Burden 

8. Small Businesses 

VI. Approval of the Office of the Secretary 


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1For editorial reasons, upon codification in the 

U.S. Code, Part B was redesignated Part A. 

2All references to EPCA in this rulemaking refer 

to the statute as amended through the Energy 

Independence and Security Act of 2007, Public Law 

110–140. 

3The term ‘‘conventional cooking products,’’ as 

used in this notice, refers to residential electric and 

gas kitchen ovens, ranges, and cooktops (other than 

microwave ovens). 

4EISA 2007 directs DOE to also consider IEC 

Standard 62087 when amending its test procedures 

to include standby mode and off mode energy 

consumption. See 42 U.S.C. 6295(gg)(2)(A). IEC 

Standard 62087 addresses the methods of 

measuring the power consumption of audio, video, 

and related equipment and is therefore not 

applicable to the products at issue in this 

rulemaking. 

5For more information on the ENERGY STAR 

program, see: www.energystar.gov. 

I. Authority and Background 

Title III, Part B1 of the Energy Policy 

and Conservation Act of 1975 (EPCA or 

the Act), Public Law 94–163 (42 U.S.C. 

6291–6309, as codified) sets forth a 

variety of provisions designed to 

improve energy efficiency and 

established the Energy Conservation 

Program for Consumer Products Other 

Than Automobiles, a program covering 

most major household appliances.2

These include residential dishwashers, 

conventional cooking products,3 and 

dehumidifiers, the subject of today’s 

notice. (42 U.S.C. 6292(a)(6) and (10); 

6295(cc)) 

Under the Act, this program consists 

essentially of four parts: (1) Testing, (2) 

labeling, (3) establishing Federal energy 

conservation standards, and (4) 

certification and enforcement 

procedures. The testing requirements 

consist of test procedures that 

manufacturers of covered products must 

use: (1) as the basis for certifying to DOE 

that their products comply with 

applicable energy conservation 

standards adopted pursuant to EPCA, 

and (2) for making representations about 

the efficiency of those products. (42 

U.S.C. 6293(c); 6295(s)) Similarly, DOE 

must use these test procedures in any 

enforcement action to determine 

whether the products comply with these 

energy conservation standards. (42 

U.S.C. 6295(s)) 

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. 

EPCA provides in relevant part that any 

test procedures prescribed or amended 

under this section shall be reasonably 

designed to produce test results which 

measure energy efficiency, energy use or 

estimated annual operating cost of a 

covered product during a representative 

average use cycle or period of use, as 

determined by DOE, and shall not be 

unduly burdensome to conduct. (42 

U.S.C. 6293(b)(3)) In addition, if DOE 

determines that a test procedure 

amendment 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)) 

EPCA, in relevant part, require DOE to 

amend the test procedures for all 

residential covered products to include 

measures of standby mode and off mode 

energy consumption. Specifically, EPCA 

provides definitions of ‘‘standby mode’’ 

and ‘‘off mode’’ (42 U.S.C. 

6295(gg)(1)(A)) and permits DOE to 

amend these definitions in the context 

of a given product (42 U.S.C. 

6295(gg)(1)(B)). The statute requires 

integration of such energy consumption 

into the overall energy efficiency, 

energy consumption, or other energy 

descriptor for each covered product, 

unless the Secretary determines that— 

(i) the current test procedures for a 

covered product already fully account 

for and incorporate the standby mode 

and off mode energy consumption of the 

covered product; or 

(ii) such an integrated test procedure 

is technically infeasible for a particular 

covered product, in which case the 

Secretary shall prescribe a separate 

standby mode and off mode energy use 

test procedure for the covered product, 

if technically feasible. (42 U.S.C. 

6295(gg)(2)(A)). 

Any such amendment must consider 

the most current versions of IEC 

Standard 62301, ‘‘Household electrical 

appliances—Measurement of standby 

power,’’ and IEC Standard 62087, 

‘‘Methods of measurement for the power 

consumption of audio, video, and 

related equipment.’’4 Id. 

1. Dishwashers 

DOE’s test procedure for dishwashers 

is found in the Code of Federal 

Regulations (CFR) at 10 CFR part 430, 

subpart B, appendix C. DOE originally 

established its test procedure for 

dishwashers in 1977. 42 FR 39964 

(August 8, 1977). Since that time, the 

dishwasher test procedure has 

undergone a number of amendments, as 

discussed below. In 1983, DOE 

amended the test procedure to revise the 

representative average-use cycles to 

more accurately reflect consumer use 

and to address dishwashers that use 

120 °F inlet water. 48 FR 9202 (March 3, 

1983). DOE amended the test procedure 

again in 1984 to redefine the term 

‘‘water heating dishwasher.’’ 49 FR 

46533 (Nov. 27, 1984). In 1987, DOE 

amended the test procedure to address 

models that use 50 °F inlet water. 52 FR 

47549 (Dec. 15, 1987). In 2001, DOE 

revised the test procedure’s testing 

specifications to improve testing 

repeatability, changed the definitions of 

‘‘compact dishwasher’’ and ‘‘standard 

dishwasher,’’ and reduced the average 

number of use cycles per year from 322 

to 264. 66 FR 65091, 65095–97 (Dec. 18, 

2001). In 2003, DOE again revised the 

test procedure to more accurately 

measure dishwasher efficiency, energy 

use, and water use. The 2003 

dishwasher test procedure amendments 

included the following revisions: (1) 

The addition of a method to rate the 

efficiency of soil-sensing products; (2) 

the addition of a method to measure 

standby power; and (3) a reduction in 

the average-use cycles per year from 264 

to 215. 68 FR 51887, 51899–903 (August 

29, 2003). The current version of the test 

procedure includes provisions for 

determining estimated annual energy 

use (EAEU), estimated annual operating 

cost (EAOC), energy factor (EF) 

expressed in cycles per kilowatt-hour 

(kWh), and water consumption 

expressed in gallons per cycle. 10 CFR 

430.23(c). 

2. Dehumidifiers 

The DOE test procedure for 

dehumidifiers is found at 10 CFR part 

430, subpart B, appendix X. EPCA 

specifies that the U.S. Environmental 

Protection Agency’s (EPA) test criteria 

used under the ENERGY STAR 5

program must serve as the basis for the 

test procedure for dehumidifiers. (42 

U.S.C. 6293(b)(13)) The ENERGY STAR 

test criteria effective in January 2001 

require that American National 

Standards Institute (ANSI)/Association 

of Home Appliance Manufacturers 

(AHAM) Standard DH–1, 

‘‘Dehumidifiers,’’ be used to measure 

capacity and that the Canadian 

Standards Association (CAN/CSA) 

standard CAN/CSA–C749–1994 

(R2005), ‘‘Performance of 

Dehumidifiers,’’ be used to calculate EF. 

DOE adopted those test criteria, along 

with related definitions and tolerances, 

as its test procedure for dehumidifiers. 

71 FR 71340, 71347, 71366–68 (Dec. 8, 

2006). The DOE test procedure provides 

methods for determining the EF for 

dehumidifiers, which is expressed in 

liters (l) of water condensed per kWh. 

3. Conventional Cooking Products 

DOE’s test procedures for 

conventional ranges, cooktops, and 

ovens (including microwave ovens) are 


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31446 Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 

6For more information on the EnergyGuide 

labeling program, see: www.access.gpo.gov/nara/ 

cfr/waisidx_00/16cfr305_00.html. 

7EISA 2007 directs DOE to also consider IEC 

Standard 62087 when amending its test procedure 

to include standby mode and off mode energy 

consumption. See 42 U.S.C. 6295(gg)(2)(A). DOE 

considered IEC Standard 62087 and determined 

that the standard addresses the methods of 

measuring the power consumption of audio, video, 

and related equipment and is therefore not 

applicable to the products addressed in today’s 

proposal. 

found at 10 CFR part 430, subpart B, 

appendix I. DOE first established the 

test procedures included in appendix I 

in a final rule published in the Federal 

Register on May 10, 1978. 43 FR 20108, 

20120–28. DOE revised its test 

procedure for cooking products to more 

accurately measure their efficiency and 

energy use, and published the revisions 

as a final rule in 1997. 62 FR 51976 

(Oct. 3, 1997). These test procedure 

amendments included: (1) A reduction 

in the annual useful cooking energy; (2) 

a reduction in the number of selfcleaning oven cycles per year; and (3) 

incorporation of portions of IEC 

Standard 705–1988, ‘‘Methods for 

measuring the performance of 

microwave ovens for household and 

similar purposes,’’ and Amendment 2– 

1993 for the testing of microwave ovens. 

Id. The test procedure for conventional 

cooking products establishes provisions 

for determining EAOC, cooking 

efficiency (defined as the ratio of 

cooking energy output to cooking energy 

input), and EF (defined as the ratio of 

annual useful cooking energy output to 

total annual energy input). 10 CFR 

430.23(i); 10 CFR part 430 subpart B, 

appendix I. There is currently no 

EnergyGuide 6 labeling program for 

cooking products. 

In today’s SNOPR, DOE proposes 

amendments to its cooking products test 

procedure for only conventional 

cooking products. DOE has initiated a 

separate test procedure rulemaking to 

address standby mode and off mode 

power consumption for microwave 

ovens. The microwaves rulemaking was 

initiated in response to comments from 

interested parties on the advance notice 

of proposed rulemaking (ANOPR) for an 

earlier rulemaking concerning energy 

conservation standards for residential 

dishwashers, dehumidifiers, cooking 

products, and commercial clothes 

washers published on November 15, 

2007 (hereafter referred to as the 

November 2007 ANOPR) (72 FR 64432). 

As discussed in the subsequent notice of 

proposed rulemaking (NOPR) for that 

standards rulemaking, interested parties 

stated generally that DOE should amend 

the test procedures for all types of 

cooking products to allow for 

measurement of standby mode energy 

use in order to implement a standby 

power energy conservation standard. 73 

FR 62034, 62043–44 (Oct. 17, 2008). 

DOE published a NOPR proposing 

amendments to the microwave oven test 

procedure for standby mode and off 

mode in the Federal Register on 

October 17, 2008. 73 FR 62134. DOE 

subsequently published a supplemental 

notice of proposed rulemaking (SNOPR) 

in the Federal Register on this topic on 

July 22, 2010 (75 FR 42612), and an 

interim final rule on March 9, 2011 

(hereafter referred to as the March 2011 

Interim Final Rule) (76 FR 12825). DOE 

sought comment on a newly issued 

version of IEC Standard 62301 (which is 

discussed in more detail in the 

following section) for measuring 

standby mode and off mode energy use, 

the previous version of which was 

incorporated by reference in the 

microwave oven test procedure. In 

response to comments received on the 

interim final rule, DOE proposed to 

incorporate by reference the newly 

issued version of IEC Standard 62301 in 

an SNOPR published in the Federal 

Register on November 23, 2011. 76 FR 

72332. 

B. Standby Mode and Off Mode 

EPCA requires DOE to amend the test 

procedures for covered products to 

address standby mode and off mode 

energy consumption. Specifically, the 

amendments require DOE to integrate 

standby mode and off mode energy 

consumption into the overall energy 

efficiency, energy consumption, or other 

energy descriptor for that product 

unless the current test procedures 

already fully account for such 

consumption. If integration is 

technically infeasible, DOE must 

prescribe a separate standby mode and 

off mode energy use test procedure, if 

technically feasible. (42 U.S.C. 

6295(gg)(2)(A)) Any such amendment 

must consider the most current versions 

of IEC Standard 62301, ‘‘Household 

electrical appliances—Measurement of 

standby power,’’ and IEC Standard 

62087, ‘‘Methods of measurement for 

the power consumption of audio, video, 

and related equipment.’’ Id. 

C. The December 2010 NOPR 

On December 2, 2010, DOE published 

a NOPR (hereafter called the December 

2010 NOPR) in which it proposed to 

incorporate by reference into the test 

procedures for dishwashers, 

dehumidifiers, and conventional 

cooking products specific provisions 

from IEC Standard 62301 ‘‘Household 

electrical appliances—Measurement of 

standby power,’’ First Edition 2005–06 

(IEC Standard 62301 (First Edition) or 

‘‘First Edition’’) regarding test 

conditions and test procedures for 

measuring standby mode and off mode 

power consumption. 75 FR 75290, 

75295–97. DOE also proposed to 

incorporate into each test procedure 

definitions of ‘‘active mode,’’ ‘‘standby 

mode,’’ and ‘‘off mode’’ based on the 

definitions for those terms provided in 

the most current draft of an updated 

version of IEC Standard 62301. Id. at 

75297–300. Further, DOE proposed to 

include in each test procedure 

additional language that would clarify 

the application of clauses from IEC 

Standard 62301 (First Edition) for 

measuring standby mode and off mode 

power consumption.7 Id. at 75300–04. 

DOE held a public meeting on December 

17, 2010, to receive comments on the 

December 2010 NOPR, and accepted 

written comments, data, and 

information until February 15, 2011. 

Commenters to the December 2010 

NOPR suggested that the draft updated 

version of IEC Standard 62301 would 

provide practical improvement to the 

mode definitions and testing 

methodology for the test procedures that 

are the subject of this rulemaking. 

D. The September 2011 SNOPR 

Based upon the public comment 

received on the December 2010 NOPR, 

DOE further analyzed the draft materials 

associated with IEC Standard 62301 

(Second Edition), which were in an 

advanced stage of development. Shortly 

thereafter, the IEC adopted and 

published IEC Standard 62301, 

‘‘Household electrical appliances— 

Measurement of standby power,’’ 

Edition 2.0 2011–01 (IEC Standard 

62301 (Second Edition) or ‘‘Second 

Edition’’) on January 27, 2011. 

Consistent with its statutory mandate, 

DOE reviewed this latest version of the 

IEC standard and agreed that it 

improves some measurements of 

standby mode and off mode energy use. 

Accordingly, DOE proposed in an 

SNOPR published in the Federal 

Register on September 20, 2011 (76 FR 

58346) (hereafter called the September 

2011 SNOPR), to incorporate certain 

provisions of the IEC Standard 62301 

(Second Edition), along with clarifying 

language, into the DOE test procedures 

for residential dishwashers, 

dehumidifiers, and conventional 

cooking products. Other than the 

specific amendments newly proposed in 

the September 2011 SNOPR, DOE 

continued to propose the test procedure 

amendments originally included in the 

December 2010 NOPR. 


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8A notation in the form ‘‘ASAP, Public Meeting 

Transcript, No. 10 at pp. 60–61’’ identifies an oral 

comment that DOE received during the December 

17, 2010, NOPR public meeting, was recorded in 

the public meeting transcript in the docket for the 

residential dishwasher, dehumidifier, and 

conventional cooking products test procedures 

rulemaking (Docket No. EERE–2010–BT–TP–0039), 

and is available for review at www.regulations.gov. 

This particular notation refers to a comment (1) 

Made by the Appliance Standards Awareness 

Project during the public meeting; (2) recorded in 

document number 10, which is the public meeting 

transcript that is filed in the docket of the 

residential dishwasher, dehumidifier, and 

conventional cooking products test procedures 

rulemaking; and (3) which appears on pages 60–61 

of document number 10. 

9A notation in the form ‘‘PG&E, No. 17 at p. 2’’ 

identifies a written comment: (1) Made by Pacific 

Gas & Electric; (2) recorded in document number 17 

that is filed in the docket of the residential 

dishwasher, dehumidifier, and conventional 

cooking products test procedures rulemaking 

(Docket No. EERE–2010–BT–TP–0039) and 

available for review at www.regulations.gov; and (3) 

which appears on page 2 of document number 17. 

II. Summary of the Supplemental 

Notice of Proposed Rulemaking 

Upon further review of the public 

comment received on its proposals, DOE 

decided to further analyze the energy 

use of an air-circulating fan during a 

portion of cycle finished mode for 

dishwashers and conventional cooking 

products. DOE’s analysis suggests that 

measurement of the energy use during 

this ‘‘fan-only’’ mode (considered part 

of the active mode) could improve the 

measurement of dishwasher and 

conventional cooking product energy 

use. Accordingly, DOE proposes in 

today’s SNOPR to amend the DOE test 

procedures for residential dishwashers 

and conventional cooking products to 

incorporate the measurement of energy 

use in fan-only mode in the energy 

efficiency metrics. 

DOE also proposes amendments to the 

dishwasher test procedure to measure 

the annual energy and water use 

associated with periodic water softener 

system regeneration for those 

dishwashers equipped with such 

systems. DOE’s proposal in today’s 

SNOPR considers: (1) the data on this 

subject accompanying petitions for 

waiver from the dishwasher test 

procedure for water-softening 

dishwashers, submitted by 

manufacturers; the methodology for 

addressing water softener system 

regeneration that was provided in 

waivers that were subsequently granted 

to manufacturers; and additional 

research and analysis that DOE 

conducted for today’s SNOPR. 

DOE also proposes in today’s SNOPR 

to clarify in the dishwasher test 

procedure: (1) The normal cycle 

definition; (2) power supply 

requirements during testing; (3) energy 

test cycle requirements for dishwashers 

with a separate soil-sensing cycle; (4) 

test load specifications and soiling 

requirements; and (5) detergent dosing 

specifications. 

The proposal would also update the 

industry test method specified in the 

dehumidifier test procedure. As noted 

above, EPCA specifies that the EPA’s 

test criteria used under the ENERGY 

STAR program must serve as the basis 

for the test procedure for dehumidifiers. 

(42 U.S.C. 6293(b)(13)) The ENERGY 

STAR test criteria effective in January 

2001 require that ANSI/AHAM 

Standard DH–1, ‘‘Dehumidifiers,’’ be 

used to measure energy use. Because the 

version of the DH–1 standard was not 

specified in the ENERGY STAR test 

criteria, DOE proposes to incorporate 

the most current version of the DH–1 

standard (2008) into the test procedure 

for dehumidifiers. 

Today’s proposal would also 

eliminate measures of pilot light energy 

consumption from the cooking products 

test procedure. In a final rule published 

April 8, 2009, DOE established 

standards that prohibit constant burning 

pilot lights in gas cooking products 

manufactured on or after April 9, 2012. 

74 FR 16040. DOE also proposes in 

today’s SNOPR to remove the 

calculation of an obsolete energy 

efficiency metric, EF, from the 

dishwasher test procedure because the 

current dishwasher energy conservation 

standards no longer require it for 

compliance or representations. 

Other than the specific amendments 

newly proposed in today’s SNOPR, DOE 

continues to propose the test procedure 

amendments originally included in the 

December 2010 NOPR and the 

September 2011 SNOPR. For the 

reader’s convenience, DOE has 

reproduced in this SNOPR the entire 

body of proposed regulatory text from 

the December 2010 NOPR and 

September 2011 SNOPR, further 

amended as appropriate according to 

today’s proposals. DOE’s supporting 

analysis and discussion for the portions 

of the proposed regulatory text not 

affected by this SNOPR may be found in 

the December 2010 NOPR (75 FR 75290 

(Dec. 2, 2010)) and the September 2011 

SNOPR (76 FR 58346 (Sept. 20, 2011)). 

III. Discussion 

A. Fan-Only Mode 

In the December 2010 NOPR, DOE 

proposed to include the measurement of 

energy use in ‘‘cycle finished’’ mode for 

dishwashers and conventional cooking 

products, defined as ‘‘a mode that 

provides continuous status display 

following operation in active mode.’’ 75 

FR 75290, 75298–99 (Dec. 2, 2010). DOE 

maintained this proposed definition in 

the September 2011 SNOPR. 76 FR 

58346 (Sept. 20, 2011). 

DOE received comments on the 

December 2010 NOPR and September 

2011 SNOPR which noted that certain 

components in addition to a continuous 

status display could be energized for at 

least a portion of cycle finished mode in 

these products. Appliance Standards 

Awareness Project (ASAP) asked 

whether DOE had identified other 

energy-consuming sources not covered 

in by the definition of cycle finished 

mode, such as fans used in conventional 

ovens. Southern California Edison 

(SCE), Southern California Gas 

Company (SCG), and San Diego Gas and 

Electric Company (SDG&E), jointly 

(hereafter referred to as ‘‘California 

Utilities’’); ASAP, American Council for 

Energy Efficient Economy (ACEEE), 

National Consumer Law Center (NCLC), 

and Natural Resources Defense Council 

(NRDC), jointly (hereafter referred to as 

the ‘‘NOPR Joint Comment’’); and 

Pacific Gas and Electric (PG&E) 

commented that some models of 

dishwashers and conventional cooking 

products currently on the market 

contain fans or other components that 

continue to run after the active cycles 

are finished and that may consume 

significantly more power than a 

continuous display. ASAP, ACEEE, and 

NCLC, jointly (hereafter referred to as 

the ‘‘SNOPR Joint Comment’’), ASAP 

individually, the California Utilities, the 

NOPR Joint Comment, and PG&E stated 

that DOE should expand the definition 

of cycle finished mode for dishwashers 

and conventional cooking products to 

include any energy-consuming features 

following operation in active mode. 

(ASAP, Public Meeting Transcript, No. 

10 at pp. 60–61; 8 California Utilities, 

No. 16 at p. 2; NOPR Joint Comment, 

No. 13 at pp. 1–2; PG&E, No. 17 at p. 

2 9; SNOPR Joint Comment, No. 22 at p. 

1) Northwest Energy Efficiency Alliance 

(NEEA) stated that many electronically 

controlled conventional cooking 

products have a fan-powered cooling 

function built into the active cooking 

mode (to protect the electronic controls 

from excessive heating) that persists 

beyond the functions listed in DOE’s 

proposed definition of active mode. 

According to NEEA, because the period 

in which the fan operates occurs after 

the active mode functions end, and the 

duration of fan operation depends on 

the temperature at which the main 

cooking function(s) were conducted, 

fan-only mode would not meet DOE’s 

proposed definition of inactive 

(standby) mode. NEEA commented that 

the inactive mode for a cooking product 


sroberts on DSK5SPTVN1PROD with PROPOSALS
31448 Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 

10Residential Energy Consumption Survey, 2009 

Survey Data. Available online at: http:// 

38.96.246.204/consumption/residential/data/2009/. 

11This active mode energy use, derived from the 

Technical Support Document: Energy Efficiency 

Program for Consumer Products and Commercial 

and Industrial Equipment: Residential Dishwashers, 

Dehumidifiers, and Cooking Products and 

begins after the cooling fan stops, and 

therefore the cooling function is part of 

active mode. For dishwashers, NEEA 

requested clarification as to whether 

such functions as a fan operating during 

the drying cycle are part of the active 

washing and drying cycle, or are part of 

cycle finished mode. NEEA commented 

that this cooling function in 

dishwashers should be considered as 

part of active mode. (NEEA, No. 11 at 

pp. 2–4) The NOPR Joint Comment 

stated that DOE should measure the 

duration of cycle finished mode in the 

absence of user interaction and estimate 

typical consumer use. According to the 

NOPR Joint Comment, the current 

proposal of 1.1 hours per cycle may be 

low, given that several dishwashers 

have cooling fans that continue to run 

for several hours following completion 

of the active cycle. The NOPR Joint 

Comment also noted that certain ovens 

and ranges include a cooling fan that 

can run up to 2 hours after the end of 

the active cycle. The NOPR Joint 

Comment suggested, therefore, that 

cycle finished mode likely continues on 

average for much longer than the 

proposed 5 minutes. The NOPR Joint 

Comment expressed concern about 

DOE’s use of the use of European data 

for estimating the duration of cycle 

finished mode, and suggested that DOE 

make its own measurements or obtain 

data from manufacturers. (NOPR Joint 

Comment, No. 13 at pp. 4–5) 

In considering these comments, DOE 

researched the functions, average power 

consumption, and duration of operation 

of air circulation fans in both 

dishwashers and conventional cooking 

products at the completion of the active 

cycle. The following sections discuss 

the results of these analyses separately 

for the two product types. 

1. Dishwashers 

Certain dishwashers incorporate an 

air circulation fan to transfer moisture 

from the dishware and out of the unit 

through an open vent more effectively 

than natural convection through the 

vent, The air circulation fan may remain 

energized for a period after the drying 

portion of an active cycle is complete, 

during which time the continuous status 

display indicates to the consumer that 

the cycle has finished. DOE research 

suggests that such fans typically require 

approximately 12 to 20 watts (W) of 

additional input power, and run 10 

minutes to 4 hours after completion of 

the active cycle, depending on the type 

of drying cycle setting selected by the 

user. Based on this information, DOE 

calculated the range of annual energy 

consumption associated with an air 

circulation fan operating after the end of 

the active cycle as (12 to 20 W) × (10 

minutes to 4 hours) × (215 estimated 

number of dishwashing cycles 

according to the DOE test procedure) = 

0.4 to 17 kWh. The higher end of the 

range is greater than 5 percent of the 

maximum allowable annual energy 

consumption for a standard dishwasher 

(355 kWh). DOE proposes to measure 

the energy consumption associated with 

an air circulation fan operating at the 

end of the active cycle as described in 

section III.C. 

In the December 2010 NOPR, DOE 

proposed to define ‘‘standby mode’’ as 

any mode where the product is 

connected to a mains power source and 

offers one or more of the following useroriented or protective functions which 

may persist for an indefinite time: (a) to 

facilitate the activation of other modes 

(including activation or deactivation of 

active mode) by remote switch 

(including remote control), internal 

sensor, or timer; or (b) continuous 

functions, including information or 

status displays (including clocks) or 

sensor-based functions. As noted 

previously, cycle finished mode was 

proposed in the December 2010 NOPR 

as a mode that provides continuous 

status display following operation in 

active mode, which would classify cycle 

finished mode as a standby mode. 75 FR 

75290, 75298–99 (Dec. 2, 2010). DOE 

maintained these proposed definitions 

in the September 2011 SNOPR. 76 FR 

58346, 58349–50 (Sept. 20, 2011). DOE 

recognizes that the operation of an air 

circulation fan for a limited duration 

following the active cycle would 

preclude such a ‘‘fan-only’’ mode from 

consideration as cycle finished mode 

and, more generally, a standby mode 

under the proposed definitions. 

Therefore, DOE considers fan-only 

mode to be an active mode uniquely 

associated with the active cycle. DOE 

proposes in today’s SNOPR to define 

fan-only mode as ‘‘an active mode in 

which a fan circulates air for a finite 

period of time after the end of the cycle, 

as indicated to the consumer.’’ 

2. Conventional Cooking Products 

Conventional ovens operate at cavity 

temperatures typically greater than 300 

degrees Fahrenheit (°F) during an active 

cooking cycle. To maintain safe 

temperatures of the surrounding 

surfaces during the active cycle and to 

cool internal oven components after 

completion of the cycle, conventional 

ovens and ranges often incorporate an 

air circulation fan. DOE research 

indicates that the air circulation fan may 

be activated at the end of the active 

cooking cycle based on some 

combination of the oven cavity internal 

temperature and cooking function (e.g., 

‘‘bake’’, ‘‘broil’’), or may be programmed 

to run for a fixed time. For conventional 

ovens and ranges which operate the air 

circulation fan according to the oven 

cavity temperature, DOE observed in the 

sample that it reviewed that the 

threshold temperature at which the fan 

would be activated ranged from 100°F to 

360°F. For those conventional ovens 

and ranges with time-controlled fan 

operation, the duration of the ‘‘fanonly’’ mode in the sample that DOE 

identified ranged from 10 minutes to 3.5 

hours after completion of the active 

mode cycle. DOE found no conventional 

cooktops with air circulation fans. 

DOE research suggests that the air 

circulation fans in conventional ovens 

and ranges typically require 

approximately 16 to 50 W of input 

power. To estimate the number of 

annual cooking cycles for each 

conventional oven and range, DOE 

reviewed available consumer usage 

data. DOE’s Energy Information Agency 

(EIA) conducts a Residential Energy 

Consumption Survey (RECS) that 

collects energy-related data for occupied 

primary housing units in the United 

States. The 2009 RECS collected data 

from 12,083 housing units representing 

over 113 million households.10 The 

RECS indicates which households in the 

survey use electric and gas ranges and 

ovens. With regard to electric cooking 

products, 2332 household records have 

standard ovens and 5258 household 

records have self-cleaning ovens. With 

regard to gas cooking products, 2075 

household records have standard ovens, 

and 2315 household records have selfcleaning ovens. The above totals 

represent ovens in households as either 

a stand-alone unit or as part of a range. 

Table III.1 presents the weightedaverage cooking frequency values of 

each product class. DOE calculated the 

range of annual energy consumption 

associated with an air circulation fan 

operating after the end of the active 

cooking cycle as (16 to 50 W) × (10 

minutes to 3.5 hours) × (weighted 

average cooking frequency per day) × 

(365 days per year). Table III.1 also 

shows this range of calculated annual 

energy consumption associated with air 

circulation fans for each product class, 

along with the annual energy 

consumption in other active modes of a 

baseline product.11 The higher end of 


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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 31449 

Commercial Clothes Washers, March 2009, includes 

clock power. The technical support document is 

available online at: http://www1.eere.energy.gov/ buildings/appliance_standards/residential/ 

cooking_products_final_rule_tsd.html. 

the range for each class is greater than 

11 percent of the baseline annual energy 

use. DOE proposes to measure the 

energy consumption associated with an 

air circulation fan operating at the end 

of the active cycle as described in 

section III.C. 

TABLE III.1—DOE ESTIMATE OF ANNUAL ENERGY USE FOR CONVENTIONAL OVEN AND RANGE FAN-ONLY MODE

Weightedaverage 

cooking 

frequency 

(cycles per 

day) 

Annual active mode energy consumption 

Annual fan-only 

mode energy 

consumption 

Standard Electric Ovens .......................................... 0.60 166.5 kWh ............................................................... 0.6 to 38.3 kWh. 

Self-Cleaning Electric Ovens ................................... 0.56 171.0 kWh ............................................................... 0.5 to 35.8 kWh. 

Standard Gas Ovens ............................................... 0.50 0.92 MMBtu (269 kWh) ........................................... 0.5 to 31.9 kWh. 

Self-Cleaning Gas Ovens ........................................ 0.54 1.04 MMBtu (305 kWh) ........................................... 0.5 to 34.5 kWh. 

As with dishwashers, DOE also 

tentatively concludes that operation of 

the fan after the end of the active cycle, 

i.e., in fan-only mode, would classify 

this mode as part of active mode rather 

than cycle finished mode or, more 

generally, standby mode. DOE proposes 

for conventional cooking products to 

define fan-only mode as ‘‘an active 

mode in which a fan circulates air 

internally or externally to the cooking 

product for a finite period of time after 

the end of the heating function, as 

indicated to the consumer.’’ 

B. Dishwasher Water Softener 

Regeneration 

The current dishwasher test 

procedure does not account specifically 

for the regeneration operation of the 

water softener in its measurement of 

energy and water use. Manufacturers 

have filed petitions for waiver from the 

test procedure applicable to 

dishwashers for units that contain a 

built-in water softener regeneration 

system, asserting that: (1) The amount of 

water consumed by the regeneration 

operation of a water softener in a 

dishwasher is very small, but varies 

significantly depending on the 

adjustment of the softener; (2) the 

regeneration operation takes place 

infrequently and is related to the level 

of water hardness; and (3) including this 

water use in the measurement of water 

consumption during an individual 

energy test cycle could overstate water 

and energy use. 

These manufacturers estimated 

through in-house measurements that the 

water softener regeneration occurs once 

every six active mode cycles, and that 

the system consumes approximately 23 

gallons of water and 4 kWh of electricity 

per year, assuming an average U.S. 

water hardness of 217 milligrams per 

liter (mg/L). One manufacturer also 

estimated that the system consumes 

4.97 L of water per regeneration cycle, 

and that approximately 50 percent of 

U.S. households that have hard water 

have their entire water supply softened. 

The manufacturers requested approval 

to measure the water consumption of 

dishwashers having water softeners 

without including the water consumed 

by the dishwasher during softener 

regeneration, as outlined in European 

Standard EN 50242, ‘‘Electric 

Dishwashers for Household Use— 

Methods for Measuring the 

Performance.’’ 

DOE granted waivers to these 

manufacturers that provided an 

alternate means to account for the water 

and energy used during water softener 

regeneration. The waivers permitted 

these manufacturers to measure water 

and energy consumption of the 

specified dishwasher models that have 

water softener regeneration systems 

according to the following methodology: 

(a) The DOE test is initiated on a cycle 

immediately following a regeneration 

cycle. 

(b) Water and energy consumption 

shall be measured according to the DOE 

test procedure in 10 CFR part 430, 

subpart B, appendix C, ensuring that 

regeneration does not take place during 

the test. 

(c) Constant values of 23 gallons/year 

of water and 4 kWh/year of energy, 

representing the water and energy 

consumption associated with water 

softener regeneration, shall be added to 

the estimated annual energy and water 

use. 

(d) Should regeneration happen 

during the DOE test, the water 

consumed during water softener 

regeneration can be disregarded for the 

per cycle water and energy consumption 

measurement, provided constant values 

are added to the estimated annual 

energy and water use. The constant 

values in the waivers were specified as 

23 gallons/year of water and 4 kWh/year 

of energy and 47.6 gallons/year of water 

and 8 kWh/year of energy, respectively. 

(DOE did not find evidence that 50 

percent of U.S. households with hard 

water have their entire water supply 

softened.) 

(e) Representations about the energy 

use of water-softening dishwashers that 

are the subject of such waivers for 

compliance, marketing, or other 

purposes may be made only to the 

extent that such products have been 

testing according to this methodology. 

In response to the December 2010 

NOPR and September 2011 SNOPR, 

DOE received comments regarding the 

measurement of energy and water use 

for dishwasher water softener 

regeneration. BSH Home Appliances 

Corporation (BSH) and Earthjustice 

noted the waiver granted to Whirlpool 

Corporation (Whirlpool), and BSH 

suggested that DOE consider for this 

rulemaking the same approach of 

adding the incremental energy use 

associated with the regeneration 

process. Earthjustice requested that DOE 

inform the public of its plans to amend 

the dishwasher test procedure 

accordingly. (BSH, Public Meeting 

Transcript, No. 10 at p. 37; Earthjustice, 

No. 15 at p. 1) BSH commented that 

recent interpretations have considered 

water softener regeneration to be part of 

active mode, and that DOE treats it 

differently than the IEC does. According 

to BSH, the IEC does not consider 

regeneration as active mode, but as a 

secondary process separate from 

washing the dishware. BSH further 

commented that there are limited data 

in the United States regarding how 

many dishwashers have the 

regeneration function, and how often 

this function is activated. BSH stated 


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that water softening systems are 

typically on very high-end products, 

and that it believes that homes in which 

these dishwashers are installed typically 

have home water softening systems, so 

that the frequency of use could be very 

low. (BSH, Public Meeting Transcript, 

No. 10 at pp. 37–39). 

In response to these comments, DOE 

conducted analysis for today’s SNOPR 

in support of potential dishwasher test 

procedure amendments to address water 

softener regeneration. 

Based on review of the data submitted 

by manufacturers in their petitions for 

waiver, product database research, and 

manufacturer interviews, DOE observed 

that some areas in the United States 

have hard municipal or locally supplied 

water, defined as having calcium ion 

concentrations higher than 180 parts per 

million (ppm). Hard water prevents 

soaps and detergents from properly 

sudsing, resulting in unsatisfactory 

cleaning performance. To address this 

issue, some residential dishwashers 

have a built-in water softening system to 

minimize excess use of detergent and recleaning of the dishware due to 

unsatisfactory washing. The water 

softener system may consist of a resin 

bed which provides an ion exchange to 

remove calcium and magnesium ions 

from the water, by swapping sodium 

ions bonded to the resin with the 

calcium and magnesium ions. Over 

time, the calcium and magnesium 

replace all the sodium in the resin bed, 

which therefore must be periodically 

recharged with sodium by flushing a 

saline solution over it, a process which 

is referred to as regeneration. During a 

cycle which includes a regeneration 

process, additional water is mixed with 

sodium chloride (salt) supplied by the 

consumer in a compartment separate 

from the detergent compartment to 

create the saline solution, and this 

incremental water consumption requires 

energy to heat it to the same 

temperature as is used for the active 

cycle. 

The frequency of the water softener 

regeneration is dependent on the 

following: 

(a) Amount of water consumed in a 

normal cycle; 

(b) Hardness of the water at the inlet 

to the dishwasher; and 

(c) Hardness level set by the user on 

the unit as per manufacturer’s 

instructions. Typically, the user is asked 

to determine the hardness of the water 

(in ppm) and to set the level in the 

dishwasher accordingly. If the hardness 

level in the unit is set to 0, the water 

softening system will not be used and 

thus a regeneration process will take 

place infrequently or never. 

As noted previously, according to 

manufacturer data, the average water 

hardness in U.S. households is 217 ppm 

(12.6 grains per gallon), and that at this 

level, the regeneration process will take 

place in their dishwashers equipped 

with built-in water softening systems 

approximately once every six active 

cycles, or 36 times per year. DOE does 

not have additional information 

regarding whether this frequency is 

representative of other dishwashers 

with built-in water softening systems, 

the prevalence of home water softening 

systems, and consumer usage habits. 

Therefore, DOE is proposing to retain 

the value of 36 regeneration events per 

year, but seeks comment and 

information on a representative 

frequency. 

DOE then examined the electrical and 

water heating energy consumption, 

along with water consumption, to 

determine appropriate test procedure 

amendments for representative 

dishwashers with built-in water 

softening systems. Machine electrical 

energy consumption associated with the 

regeneration process primarily consists 

of the energy consumed to activate a 

dedicated solenoid valve to the water 

softening system and additional 

activation of the drain pump to circulate 

and flush the saline solution, as well as 

any electrical energy needed to heat the 

water internally. Because the 

regeneration process takes place over 

approximately 20 seconds, and because 

the electrical power associated with the 

water handling components is estimated 

by DOE based on its research to be less 

than 100 W, the maximum electrical 

energy use per regeneration process for 

the water handling components is 

0.0005 kWh. Assuming 36 regeneration 

events occur per year, the annual 

electrical energy use associated with 

water softener regeneration would be 

only 0.02 kWh, or less than 0.01 percent 

of the maximum allowable annual 

energy use in active mode and standby 

mode for standard dishwashers. (DOE is 

not aware of any compact dishwashers 

with built-in water softening systems.) 

Therefore, the primary machine 

electrical energy use during water 

softener regeneration is associated with 

internal water heating. 

According to the data submitted by 

manufacturers in their petitions for 

waiver, the volume of water consumed 

for a water softener regeneration process 

ranges between 2.4 and 5 L (0.63 to 1.32 

gallons) per active cycle that includes 

regeneration. Since regeneration is 

estimated to occur once every six active 

cycles, this would correspond to an 

average allocation of 0.1 to 0.2 gallons 

per active cycle for the regeneration 

process. These average water 

consumption values should be adjusted 

to account for the percentage of homes 

with hard water that use home water 

softening systems instead of the 

dishwasher built-in system, but DOE 

lacks data to assign a value to this 

percentage, and for the purposes of 

today’s SNOPR is proposing to assume 

that all dishwashers with built-in water 

softeners perform the periodic 

regeneration. The current residential 

dishwasher energy conservation 

standards allow for a maximum water 

consumption of 6.5 gallons per cycle for 

standard dishwashers, so that water 

softener water consumption would 

represent at least 2 percent of the 

allowable water consumption. DOE 

proposes to measure the water 

consumption associated with 

regeneration for dishwashers with builtin water softening systems. DOE 

requests data and information on this 

percentage, as well as the incremental 

water consumption associated with 

built-in water softener regeneration. 

Similarly, DOE examined the waterheating energy consumption for water 

softener regeneration, based on the 

allocation of 0.1 to 0.2 gallons of 

additional water consumption per active 

cycle. The water-heating energy use was 

calculated as (0.1 to 0.2 gallons per 

active cycle) × (the nominal temperature 

rise of 90 °F from the nominal cold 

water temperature of 50 °F to the 

nominal hot water temperature in the 

dishwasher of 140 °F) × (specific heat of 

water, 0.0024 kWh per gallon per °F) × 

(1¥percentage of households with 

home water softening systems) × (215 

active cycles per year). This would be 

calculated as 4.6 to 9.2 kWh per year if 

all households with hard water were 

assumed to require the use of the 

dishwasher water softening system, 

which represents at least 1 percent of 

the maximum allowable annual energy 

use of 355 kWh for standard 

dishwashers. Because the water heating 

may take place internally in the 

dishwasher or externally in the home 

water heater, DOE proposes to measure 

the machine electrical energy 

consumption as well as the water 

consumption associated with water 

softener regeneration. As discussed 

previously, DOE does not have 

information regarding the percentage of 

households with hard water that use 

home water softening systems and is 

therefore proposing in today’s SNOPR to 

assign a value of zero to this percentage. 

DOE seeks comment on this percentage 

and the inclusion of water-heating 

energy use associated with water 

softener regeneration in the proposed 


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12Active washing mode for dishwashers includes 

washing, rinsing, and drying, and active cooking 

mode for conventional cooking products includes 

oven self-clean functions. DOE also proposed that 

delay start mode for both dishwashers and 

conventional cooking products are part of active 

mode, along with cycle finished mode for 

conventional cooking products. Cycle finished 

mode for cooking products would be considered a 

part of active mode because it would not persist 

indefinitely after a cooking cycle. Cycle finished 

mode for dishwashers was proposed as a standby 

mode because it could persist indefinitely after an 

active washing cycle. 

amendments to the dishwasher test 

procedure. 

C. Calculation of Energy Consumption 

in Active, Standby, and Off Modes 

In the December 2010 NOPR, DOE 

proposed two possible approaches for 

measuring energy consumption in 

modes other than active washing mode 

for dishwashers and active cooking 

mode for conventional cooking 

products; i.e., inactive (standby) mode 

and off mode, as well as delay start 

mode and cycle finished mode.12 These 

modes are collectively referred to as 

low-power modes in this proposal. For 

the first approach, DOE proposed 

allocating specific annual hours to each 

of the active, standby, and off mode 

hours. Using this approach, the annual 

energy use associated with inactive, off, 

delay start, and cycle finished modes 

would be calculated by (1) Calculating 

the product of wattage and allocated 

hours for all possible inactive, off, delay 

start and cycle finished modes; (2) 

summing the results; and (3) dividing 

the sum by 1,000 to convert from Wh to 

kWh. For the per-cycle energy use 

metrics, this value would be divided by 

the proposed annual active use cycles 

per year. 

As an alternate approach, DOE 

proposed measuring power 

consumption for only off and inactive 

modes for the purpose of calculating the 

total energy consumed in all low-power 

modes. Using this approach, energy use 

in delay start and cycle finished mode 

would be accounted for by allocating all 

the hours not associated with active 

washing or cooking mode to the inactive 

(standby) and off modes and then 

measuring standby or off mode power. 

DOE retained these proposals in the 

September 2011 SNOPR. 

DOE received multiple comments in 

response to the December 2010 NOPR 

regarding the proposed approaches for 

measuring energy use in low-power 

modes as well as the allocation of hours 

associated with each low-power mode. 

ASAP and the NOPR Joint Comment 

stated that, although currently the 

annual energy consumption in certain 

non-active modes may represent a small 

fraction of total annual energy 

consumption, DOE should establish test 

procedures that include measurements 

of energy consumption in each nonactive mode to incentivize 

manufacturers to reduce power 

consumption in these modes. ASAP 

commented that DOE should consider 

not just those products that are 

currently on the market, but those that 

may be introduced in the next 5 or 7 

years as well. ASAP and the NOPR Joint 

Comment stated that if the test 

procedures do not measure power 

consumption in each non-active mode, 

the energy consumption of any new 

features in these modes that are 

introduced to products will not be 

captured. (ASAP, Public Meeting 

Transcript, No. 10 at pp. 87–88, 109; 

NOPR Joint Comment, No. 13 at pp. 5– 

6) The SNOPR Joint Comment 

supported the approach of measuring 

delay start and all non-active modes 

separately. (SNOPR Joint Comment, No. 

22 at pp. 1–2) NEEA commented that if 

DOE defines cycle finished mode as an 

inactive mode, then the energy 

consumption in all standby and off 

modes must be measured as part of the 

test procedure, and the hours spent in 

each component of the inactive mode 

must be based on at least some data 

from the testing of actual products in 

the field. (NEEA, No. 11 at p. 5). 

Whirlpool supports using the 

proposed alternate approach, which 

would specify hours for the off and 

inactive modes when calculating energy 

use. According to Whirlpool, delay start 

and cycle finished modes should not be 

separately measured because they 

represent a de minimus amount of 

annual energy use. (Whirlpool, No. 12 at 

p. 5). Whirlpool commented that under 

the original proposal, testing burden is 

increased by adding requirements to 

measure cycle finished mode, inactive 

mode, and off mode. Whirlpool 

estimated the time required for the 

measurement of standby mode and off 

mode power under the alternate 

approach as 10 minutes per product, as 

compared to 45 minutes if each standby 

mode and off mode were measured 

separately. According to Whirlpool, 

multiplying the added 35 minutes by 

the 100 tests it conducts each year 

results in an increase in test burden of 

7–8 man-days per year, which is a 3- 

percent productivity loss for the 

company. Whirlpool stated that the cost 

and complexity of measuring cycle 

finished and off/inactive modes 

individually greatly exceeds the value of 

such an approach. (Whirlpool, No. 21 at 

pp. 2–3) AHAM stated that, although it 

objected to the annual hours allocated to 

the various modes, it believes that the 

alternative approach is preferable to the 

measurement of power consumption in 

each mode for dishwashers and 

conventional cooking products. (AHAM, 

No. 14 at pp. 9, 12). 

Today’s SNOPR does not propose to 

include provisions to measure delay 

start mode or cycle finished mode 

separately from the active washing or 

cooking mode. Instead, today’s SNOPR 

proposes the alternate approach, in 

which all low-power modes are 

allocated to the inactive and off modes, 

depending on which of these modes is 

present. DOE believes that its 

assumption set forth in the December 

2010 NOPR that the power consumption 

in each of these low-power modes is 

similar remains valid, and that in such 

a case, measuring power consumption 

of each mode separately would 

introduce significant test burden 

without a corresponding improvement 

in a representative measure of annual 

energy use. 

DOE is, however, proposing to require 

separate measurement of fan-only mode. 

The power consumption and duration of 

this mode may vary significantly from 

product to product, and the energy use 

associated with this mode may in some 

cases represent a larger percentage of 

annual energy consumption than the 

energy use in the low-power modes. For 

the dishwasher test procedure, DOE is 

proposing to require the measurement of 

the energy consumption and duration of 

fan-only mode for each cycle run as part 

of the test procedure, averaging these 

values when multiple cycles are 

required (i.e., for soil-sensing 

dishwashers). This energy consumption 

would be required to be included in the 

annual energy consumption metric 

upon the compliance date of any 

updated dishwasher energy 

conservation standards addressing 

standby mode and off mode energy use. 

For conventional ovens, DOE is 

proposing to require measuring the 

energy consumption and duration of 

fan-only mode at the end of the active 

mode heating cycle. This energy 

consumption would be included in the 

integrated energy factor and integrated 

annual energy consumption metrics. 

DOE is also proposing provisions in 

the amended dishwasher test procedure 

that would include the machine energy 

consumption, water consumption, and 

water-heating energy consumption 

associated with the active mode 

function of water softener regeneration. 

DOE analysis suggests that the water 

consumption for an active cycle 

including water softener regeneration is 

typically more than 10 percent higher 

than the water consumption for an 


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31452 Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 

active cycle without regeneration. 

Therefore, for machines with built-in 

water softening systems, one of the 

proposed methods to measure this 

additional energy and water 

consumption would require that two 

normal cycles be run with no dishware 

load and with the water softening 

system set to the setting corresponding 

to a water hardness of 217 mg/L and 

with salt provided to the system per the 

manufacturer’s instructions. The 

resulting water consumption for the two 

cycles would then be compared. If the 

water consumption for either cycle is 

greater than the other by more than 10 

percent, then the cycle with the higher 

water consumption would be deemed to 

have a regeneration process, and the 

difference in water consumption 

between the two cycles would be 

determined to be the incremental water 

consumption associated with 

regeneration, and the incremental 

machine energy consumption for 

regeneration would be the difference in 

machine energy consumption for the 

two cycles. If neither cycle consumed an 

amount of water that is 10 percent 

higher than for the other cycle, 

additional cycles would be run until the 

water consumption for a cycle is 10 

percent higher than the average of the 

water use for the previous cycles, with 

the incremental regeneration water 

consumption determined to be the 

highest water consumption minus the 

average water consumption from the 

previous cycles. The incremental 

machine energy consumption would be 

the machine energy consumption for 

cycle with the highest water 

consumption minus the average 

machine consumption from the 

previous cycles. The incremental 

regeneration machine and water 

consumption would be apportioned to 

each active mode cycle, to be 

considered as part of the energy 

conservation standard metrics, by 

multiplying by the number of annual 

regeneration processes (36) and dividing 

by the annual use cycles (215). These 

products should also be multiplied by 

(1—percentage of households with 

home water softening systems), but as 

noted in section III.B, DOE does not 

have information on such a percentage 

and thus is not including this factor in 

the calculations proposed in today’s 

SNOPR. If a total of 10 cycles are run 

without meeting the threshold criterion, 

the dishwasher would be deemed not to 

be a water-softening dishwasher for the 

purposes of the dishwasher test 

procedure. In either case, the DOE test 

procedure would be conducted 

immediately following this portion of 

the test, with the water softener system 

set to its lowest water hardness setting. 

The water-heating energy associated 

with water-softening dishwashers that 

operate at a nominal 120 °F or 140 °F 

inlet temperature would be calculated 

as (regeneration water consumption per 

active cycle) × (the temperature rise 

from the nominal cold water 

temperature of 50 °F to the nominal 

inlet water temperature) × (specific heat 

of water, 0.0024 kWh per gallon per °F) 

for electric water heaters. For gas-heated 

or oil-heated water, the water-heating 

energy would be calculated as 

(regeneration water consumption per 

active cycle) × (the temperature rise 

from the nominal cold water 

temperature of 50 °F to the nominal 

inlet water temperature) × (specific heat 

of water, 8.2 Btus per gallon per °F)/(the 

nominal heat recovery efficiency of a 

gas or oil water heater, 0.75). 

DOE also proposes an alternate 

method to account for the machine 

energy consumption, water 

consumption, and water heating 

consumption associated with water 

softener regeneration. Under the 

alternate approach, for those units with 

built-in water softening systems, 

manufacturers would add constant 

values for these amounts. Based on 

manufacturer data, these amounts can 

range from 23 gallons/year—47.6 

gallons/year and 4 kWh/year—8 kWh/ 

year. DOE seeks comments and data on 

appropriate constant values, as well as 

whether the constant values should vary 

based on certain criteria. 

D. Dishwasher Test Procedure 

Clarifications 

During recent implementation of the 

dishwasher test procedure in third-party 

labs, interested parties raised questions 

regarding the appropriate interpretation 

of certain provisions. DOE is proposing 

clarifications to these provisions in 

order to ensure that the procedure is 

uniformly applied during testing. The 

proposed amendments discussed in this 

section would apply to all dishwasher 

testing upon the effective date of the 

amended test procedure (i.e., 30 days 

after the date of publication of the test 

procedure final rule in the Federal 

Register). 

1. Normal Cycle Definition 

The DOE dishwasher current defines 

the normal cycle as ‘‘the cycle type 

recommended by the manufacturer for 

completely washing a full load of 

normally soiled dishes including the 

power-dry feature.’’ (Section 1.6 of 10 

CFR part 430, subpart B, appendix C) 

DOE is aware that certain dishwashers 

have multiple wash and/or drying 

temperature options for the cycle setting 

required under the normal cycle 

definition. For these dishwashers, DOE 

clarifies in the definition that the 

normal cycle shall include the wash and 

drying temperature options 

recommended by the manufacturer for 

completely washing a full load of 

normally soiled dishes including the 

power-dry feature. DOE seeks comment 

on the wash and drying temperature 

options to be selected in the case that 

the cycle setting required under the 

normal cycle definition has multiple 

wash and/or drying temperature options 

but the manufacturer does not provide 

such a recommendation. 

2. Power Supply Requirements 

The current DOE dishwasher test 

procedure defines a soil-sensing 

dishwasher as ‘‘a dishwasher that has 

the ability to adjust any energy 

consuming aspect of a wash cycle based 

on the soil load of the dishes.’’ (Section 

1.12 of appendix C) For certain soilsensing dishwashers, DOE is aware that 

the turbidity sensor may lose its 

calibration during a power supply 

interruption. DOE observed, for 

example, during its energy testing of a 

limited sample of soil-sensing 

dishwashers that the first cycle after a 

power supply interruption consumed as 

much as 30-percent higher energy and 

50-percent higher water than 

subsequent cycles. As a result, removing 

the power supply to these units in 

between energy test cycles may lead to 

unrepresentative results. DOE also 

recognizes that, for soil-sensing units, 

any turbidity sensor calibration must be 

completed prior to conducting the water 

softening regeneration test and active 

mode cycle according to newly 

proposed sections 4.1 and 4.2 of 

appendix C, respectively. Therefore, 

DOE proposes that, for soil-sensing 

dishwashers: (1) the cycle setting for the 

active mode cycle (in which the soil 

sensor is active) be selected for the 

preconditioning cycle described in 

newly proposed section 2.9 of appendix 

C, and (2) the power supply to the unit 

be continuously maintained throughout 

testing, including after the 

preconditioning cycle and in between 

all energy test cycles. 

3. Energy Test Cycle Selection 

DOE is aware of certain soil-sensing 

dishwasher models that contain a soilsensing cycle selection separate from a 

non-soil-sensing normal cycle. Such a 

cycle, if selected as the test cycle, may 

lead to lower water and energy use, as 

the unit would be unable to differentiate 

between the loads for sensor heavy, 

sensor medium, and sensor light 


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response as specified in current sections 

1.9, 1.10, and 1.11 of appendix C. As a 

result, testing such units using an 

energy test cycle without soil-sensing 

may lead to unrepresentative results. 

Therefore, DOE proposes that soilsensing dishwashers be tested on the 

normal cycle under section 2.6.3 of 

appendix C if soil-sensing is available as 

an option in the normal cycle. If soilsensing is not available for the normal 

cycle, DOE proposes that the 

dishwasher be tested by selecting the 

cycle type that uses the soil-sensing 

system, and contains all the elements of 

a normal cycle including the power-dry 

feature (if such a feature is provided). 

4. Test Load Specifications and Soiling 

Requirements 

For soil-sensing dishwashers, the 

current dishwasher test procedure 

provides instructions in section 2.6.3 of 

appendix C on the preparation of the 

test loads for the sensor heavy, sensor 

medium, and sensor light response. In 

each case, the test load is defined as a 

number of place settings plus serving 

pieces, as specified in section 2.7 of 

appendix C, and a subset of those place 

settings must be soiled according to 

ANSI/AHAM DW–1–1992, ‘‘Household 

Electric Dishwashers’’ (DW–1–1992), 

while the remaining place settings, 

serving pieces, and all flatware are not 

soiled. DOE recognizes that while 

individual dishware, glassware, and 

flatware items are specified in section 

2.7 of appendix C, the test procedure 

does not define which items a ‘‘place 

setting’’ comprises. Although not 

referenced specifically in appendix C, 

DW–1–1992 defines a place setting as 

the dishware, glasses, and flatware 

associated with a table serving for one 

person, which consists of one cup, one 

saucer, one dinner plate, one bread and 

butter plate, one fruit bowl, one glass, 

one dinner fork, one salad fork, one 

knife, and two teaspoons. DW–1–1992 

also defines ‘‘serving pieces’’ as the 

dishware and flatware used on the table, 

which include one platter, two serving 

bowls, two serving spoons, and one 

serving fork. Because DW–1–1992 

includes flatware items in a place 

setting, DOE believes that the 

instructions in section 2.6.3 of appendix 

C to soil a certain number of place 

settings may be interpreted to conflict 

with the additional requirement that all 

flatware items remain unsoiled. 

Therefore, DOE proposes to amend 

section 2.7 of appendix C to specify the 

individual items in a place setting and 

identify the serving pieces, as well as to 

clarify in section 2.6.3 of appendix C 

that the flatware that is part of a soiled 

place setting is to remain unsoiled. 

DOE notes that certain items specified 

for the test load in section 2.7 of 

appendix C may be obsolete and, thus, 

may not be obtained for use in the 

dishwasher test procedure. In particular, 

DOE believes that the cup and saucer, 

salad fork, serving fork and serving 

spoon are no longer available as 

currently specified. AHAM submitted 

information to DOE regarding 

alternative specifications for all flatware 

and serving pieces, which AHAM 

considers acceptable for use in its 

current dishwasher test method, DW–1– 

2009. AHAM provides specific pattern 

names and product numbers for each of 

the flatware and serving piece items. 

(AHAM, No. 24 at pp. 1–2) DOE 

believes that AHAM’s specifications 

represent the most reasonable 

alternative for the obsolete test load 

flatware and serving pieces, and 

proposes in today’s SNOPR to amend 

the test load specifications in section 2.7 

of appendix C accordingly. DOE also 

seeks comment on alternative 

specifications for other test load items 

which may be obsolete, including the 

cup and saucer, and will consider 

additional amendments to the test load 

specifications in appendix C if it 

receives such information. 

5. Detergent Dosing Specifications 

The current DOE dishwasher test 

procedure requires the use of half the 

quantity of detergent specified by DW– 

1–1992. Section 4.1 of ANSI/AHAM 

DW–1–1992 requires the use of 0.5- 

percent concentration by weight of 

Cascade powder national formula 

dishwasher detergent in the prewash 

and main wash cup. Thus, appendix C 

requires 0.25-percent detergent 

concentration by weight in the prewash 

and main wash cup, but it does not 

specify what water usage should be 

used as the basis for calculating the 

concentrations and how the actual 

detergent weights would be determined. 

Therefore, DOE proposes to calculate 

the required detergent amounts by 

measuring the volume of water (in 

gallons) used during the prewash and 

the main wash portions of the cycle 

when running the preconditioning cycle 

as specified in appendix C. To ensure 

representative water volumes, DOE 

proposes requiring that the 

preconditioning cycle be run using the 

cycle setting for the active mode cycle. 

The amount of detergent in grams (g) 

required for the prewash would then be 

calculated as (volume of water used 

during the prewash portion) × (water 

density in pounds (lb)/gallon, which is 

a function of the nominal inlet water 

temperature) × (453.6 g/lb, the 

conversion factor from lb to g) × (0.0025, 

the conversion factor to obtain 0.25- 

percent mass concentration). The 

amount of detergent in grams required 

for the main wash would be calculated 

as (volume of water used during the 

main wash portion) × (water density in 

lb/gallon, which is a function of the 

inlet water temperature) × (453.6 g/lb, 

which is the conversion factor from lb 

to g) × (0.0025, the conversion factor to 

obtain 0.25-percent mass concentration). 

DOE is also aware that the detergent 

specified in section 4.1 of ANSI/AHAM 

DW–1–1992, ‘‘Cascade powder national 

formula,’’ is not a currently-marketed 

formulation. Thus, DOE proposes 

amending the dishwasher test procedure 

to specify the use of ‘‘Cascade with the 

Grease Fighting Power of Dawn’’ 

powder detergent, which it believes to 

be the most representative Cascade 

power national formulation available at 

this time on the market. 

E. Incorporation by Reference of an 

Updated AHAM Dehumidifier Test 

Procedure 

On July 22, 2011, DOE received a 

request for guidance from AHAM on 

interpreting the appropriate version of 

AHAM’s dehumidifier test method, DH– 

1, ‘‘Dehumidifiers’’ (DH–1), to be used 

in the DOE dehumidifier test procedure 

found at 10 CFR part 430, subpart B, 

appendix X (appendix X). According to 

AHAM, it is ambiguous as to whether 

the appropriate version of DH–1 is the 

one that was in effect at the time that 

the current DOE test procedure was 

published (AHAM DH–1–1992 (DH–1– 

1992)) or the current version that was 

issued in 2008 (ANSI/AHAM DH–1– 

2008 (DH–1–2008)). AHAM 

recommended that the DOE test 

procedure be interpreted to require the 

use of DH–1–2008 because it contains 

technical improvements and 

clarifications as compared to the earlier 

version. (AHAM, No. 23 at pp. 1–2). 

Currently, section 4 of appendix X 

requires that dehumidifier capacity and 

EF be evaluated by means of the 

ENERGY STAR qualification criteria 

that were in effect as of January 1, 2001. 

Those criteria (denoted as version 1.0) 

in turn require that capacity be 

measured according to DH–1, with no 

version specified, and EF be measured 

according to CAN/CSA–C749–1994 

(R2005), ‘‘Performance of 

Dehumidifiers’’ (CAN/CSA–C749). DOE 

agrees that the required test method for 

capacity measurement could be 

interpreted as either the version of DH– 

1 that was in effect as of January 1, 2001 

(DH–1–1992), or the version that is 

currently effective (DH–1–2008). 

DOE, therefore, evaluated both the 

1992 and 2008 editions of DH–1 to 


sroberts on DSK5SPTVN1PROD with PROPOSALS
31454 Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 

13 DOE’s Compliance Certification Database is 

available online at: www.regulations.doe.gov/ 

certification-data/Category.html. 

compare results from the 2008 version 

with results from the 1992 version. A 

review of each edition reveals that the 

updated provisions that could affect the 

capacity measurement refer to 

measurement equipment accuracy, test 

room specifications, and data recording 

frequency. Other changes, including the 

addition of EF measurement 

methodology equivalent to that in CAN/ 

CSA–C749, do not impact the capacity 

measurement. Each of the substantive 

changes is detailed in the following 

sections. 

1. Temperature Measurement Accuracy 

DH–1–1992 requires thermometers 

measuring wet-bulb and dry-bulb 

temperatures to be accurate to 0.1 °F, 

with graduated intervals of no more 

than 0.2 °F. DH–1–2008 maintains those 

accuracies for analog temperature 

measurement devices, but requires a 

precision of 0.05 °F for digital 

equipment. DOE believes that many test 

labs are already using thermocouples 

and data acquisition systems, and thus 

achieving the more accurate 

temperature measurements. In any 

event, this requirement would maintain 

or improve the determination of 

ambient conditions, leading to 

maintaining or improving test 

repeatability and reproducibility. 

2. Weight Measurement Accuracy 

DH–1–2008 allows the use of less 

accurate weight measurement 

equipment for measuring the amount of 

condensate that is collected during the 

test. This newer version requires a 

maximum of 0.5 percent variation 

among individual readings, rather than 

the 0.2 percent specified in DH–1–1992. 

Because this allowable variation directly 

translates to a 0.5-percent uncertainty in 

the capacity rating, the effect of this 

change would be to allow the capacity 

ratings to range from 15 ± .08 pints/day 

for the smallest unit in DOE’s 

compliance certification database 13 to 

150 ± .75 pints/day for the largest unit. 

While a 0.2-percent uncertainty allows 

enough variation to produce a change in 

the significant digits of the metric used 

for capacity classification, i.e., two 

digits after the decimal point, this 

greater allowable uncertainty could 

result in any dehumidifiers being rated 

at a lower capacity than they would by 

using DH–1–1992. 

3. Barometric Pressure Measurement 

Accuracy 

DH–1–2008 adds a new requirement 

that the barometric pressure measuring 

instrument must be accurate to 0.3 

percent. DOE is not aware of the type of 

pressure instruments that have been or 

are currently being used by test labs, so 

it is not known whether this new 

requirement would have any impact on 

nominal performance measurements. 

DOE believes in general, however, that 

providing such a specification would 

help ensure test repeatability and 

reproducibility by aiding in maintaining 

ambient conditions closely. 

4. Test Room Requirements 

In DH–1–2008, AHAM increased the 

minimum distance between any room 

surface and the discharge side of the 

dehumidifier from 3 feet to 6 feet. This 

version of DH–1 also adds a requirement 

that the test room conditioning 

equipment handle air at a rate of not 

less than two times the dehumidifier air 

flow, and that the air flow approaching 

the dehumidifier be uniform in velocity. 

Further, DH–1–2008 newly specifies the 

orientation of the dehumidifier with 

respect to the air flow within the test 

room and the position of an air 

sampling tree in relation to the inlet face 

of the test unit. DOE interprets that the 

purpose of these new requirements is to 

ensure that testing conditions are as 

stable and uniform as possible, and does 

not believe that the different 

requirements would measurably affect 

the nominal performance of a test unit. 

5. Data Recording Intervals 

Measurements of the energy use, 

supply power, and wet- and dry-bulb 

temperatures are required to be recorded 

at 30-minute intervals in DH–1–1992. 

The intervals were shortened to 10 

minutes in the 2008 version. This 

change would not cause a change in the 

nominal capacity measurement because 

the final condensate measurement 

would remain the same. The greater 

recording frequency helps to ensure that 

proper test conditions are maintained 

throughout the test. There is, however, 

an accompanying increase in test 

burden, as the new test procedure 

requires recording 36 events over the 6- 

hour test period instead of the original 

12, but DOE concludes that the 

incremental burden is small if the data 

are recorded automatically in a data 

acquisition system, as is likely for many 

test labs. 

In sum, upon review of the two 

versions of DH–1, DOE recognizes that 

there could be minor impacts to the 

nominal capacity measurement 

associated with the changes made from 

DH–1–1992 to DH–1–2008. However, 

DOE tentatively concludes that, on 

balance, the use of either version would 

produce comparable results for its 

dehumidifier test procedure. Further, 

DOE believes that the additional clarity 

and specificity provided by the 2008 

version would improve test accuracy, 

repeatability, and reproducibility. 

DOE further proposes that the 

dehumidifier test procedure directly 

reference DH–1–2008 for both the 

capacity and EF measurements given 

that the EF methodology has been added 

to DH–1–2008. The proposed test 

method is based on the ENERGY STAR 

criteria (as required by EPCA) and CAN/ 

CSA–C794–1994. DOE proposes the 

direct reference to DH–1–2008 given the 

improvements in that version as 

compared to the test method set forth in 

DH–1–1992 and referenced in the 

ENERGY STAR criteria. Therefore, DOE 

proposes in today’s SNOPR to update 

the reference in its dehumidifier test 

procedure to DH–1–2008 for both 

capacity and EF measurements, and 

eliminate the reference to the ENERGY 

STAR qualification criteria. 

F. Technical Corrections 

In sections 5.4.1 and 5.4.2 of the 

current dishwasher test procedure, 

water energy consumption is calculated 

as specified for both non-soil-sensing 

and soil-sensing dishwashers using 

electrically heated water ‘‘[f]or the 

normal and truncated normal test 

cycle.’’ Because the normal and 

truncated normal test cycles do not 

apply to soil-sensing dishwashers, DOE 

proposes to remove this qualification in 

newly designated sections 5.5.1.1 and 

5.5.2.1. Similarly, in sections 5.5.1 and 

5.5.2 of the current dishwasher test 

procedure, water energy consumption is 

calculated as specified for both non-soilsensing and soil-sensing dishwashers 

using gas-heated or oil-heater water 

‘‘[f]or each test cycle.’’ Because for soilsensing dishwashers the calculation is 

applied to a single weighted-average 

water consumption measured over the 

sensor heavy response, sensor medium 

response, and sensor light response 

cycles, DOE believes that this 

qualification may cause confusion. 

Therefore, DOE proposes to remove this 

qualification in newly designated 

sections 5.6.1.1 and 5.6.2.1. DOE also 

proposes to correct references to the 

water consumption values used in the 

calculation of water energy 

consumption in these sections of the 

dishwasher test procedure, so that 

separate references are provided for 

non-soil-sensing and soil-sensing 

dishwashers. 


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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 31455 

Due to a transcription error in 

publication, the September 2011 SNOPR 

erroneously specified in the regulatory 

text for the proposed dishwasher test 

procedure amendments the calculation 

of estimated annual operating cost for 

dishwashers having a truncated normal 

cycle which operate at 50 °F inlet water 

temperature. Specifically, the 

calculation proposed in 10 CFR 

430.23(c)(1)(i)(B) contained extraneous 

variables ‘‘B’’ and ‘‘V.’’ DOE proposes in 

today’s SNOPR to remove these 

extraneous variables to correct the 

calculation. 

G. Removal of Obsolete Measures of Gas 

Pilot Light Energy Consumption in the 

Conventional Cooking Products Test 

Procedure and of Energy Factor 

Calculations for Dishwashers 

The energy conservation standards for 

cooking products require that gas 

cooking products manufactured on or 

after April 9, 2012, shall not be 

equipped with a constant burning pilot 

light. 10 CFR 430.32(j). Therefore, the 

provisions in the cooking products test 

procedure that measure the energy use 

of gas pilot lights shall be obsolete at the 

time any final test procedure 

amendments become effective. For this 

reason, DOE proposes to delete existing 

sections 2.9.2.2 (‘‘Flow meter’’), 3.1.1.2 

(‘‘Continuously burning pilot lights of a 

conventional gas oven’’), 3.1.2.1 

(‘‘Continuously burning pilot lights of a 

conventional gas cooking top’’), 3.2.1.3 

(‘‘Gas consumption of continuously 

burning pilot lights’’ [for conventional 

gas ovens]), 3.2.2.1 (‘‘Gas consumption 

of continuously burning pilot lights’’ 

[for conventional gas cooking tops]), 

3.3.7 (recording the gas flow rate or gas 

consumption and elapsed time for a 

continuously burning pilot light of a 

conventional gas oven), 3.3.10 

(recording the gas flow rate or gas 

consumption and elapsed time for a 

continuously burning pilot light of a 

conventional gas cooking top), 4.1.2.2 

(‘‘Annual energy consumption of any 

continuously burning pilot lights’’ [for 

conventional gas ovens]), and 4.2.2.2.2 

(‘‘Annual energy consumption of any 

continuously burning gas pilots’’ [for 

conventional gas cooking tops]) in 10 

CFR part 430 subpart B appendix I. DOE 

also proposes to modify (and renumber 

where appropriate) existing sections 1.7 

(‘‘Normal nonoperating temperature’’), 

1.14 (‘‘Symbol usage’’), 2.9.2.1 

(‘‘Positive displacement meters’’), 3.1.1 

‘‘Conventional oven’’), 3.1.1.1 (‘‘Selfcleaning operation of a conventional 

oven’’), 3.1.2 (‘‘Conventional cooking 

top’’), 4.1.2.5.2 (‘‘Conventional gas oven 

energy consumption’’), 4.1.2.6.2 

(‘‘Conventional gas oven energy 

consumption’’ [for multiple 

conventional gas ovens’’]), 4.2.1.2 (‘‘Gas 

surface unit cooking efficiency’’), and 

4.2.2.2.3 (‘‘Total annual energy 

consumption of a conventional gas 

cooking top’’) to eliminate the measures 

of energy use relating to gas pilot lights. 

DOE also proposes to eliminate the 

calculation of energy factor for 

dishwashers in 10 CFR 430.23 because 

this metric is no longer used in DOE’s 

energy conservation standards for 

dishwashers or to make representations 

of energy efficiency. 

H. Compliance With Other EPCA 

Requirements 

EPCA requires that ‘‘[a]ny test 

procedures prescribed or amended 

under this section shall be reasonably 

designed to produce test results which 

measure 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)). 

For the reasons stated in the 

December 2010 NOPR and September 

2011 SNOPR, DOE tentatively 

concluded that the amended test 

procedures would produce test results 

that measure the standby mode and off 

mode power consumption during 

representative use, and that the test 

procedures would not be unduly 

burdensome to conduct. DOE continues 

to make these assertions for today’s 

SNOPR, as explained below. 

Regarding the proposal in today’s 

SNOPR to measure energy use in fanonly mode, DOE recognizes that the 

current specifications for the watt-hour 

meter to be used for measuring energy 

consumption in the dishwasher active 

washing cycle and conventional cooking 

products cooking cycle may not be 

sufficient. Therefore, DOE is proposing 

more stringent specifications for these 

watt-hour meters. The watt-hour meter 

in the dishwasher and conventional 

cooking products test procedures would 

be required to have a resolution of 0.1 

watt-hour or less and a maximum error 

of no more than 1 percent of the 

measured value for any demand greater 

than 5 watts. Today’s proposal would 

allow the measurement of fan-only 

mode energy consumption as a 

continuation of the active mode cycle, 

rather than necessitating a separate 

cycle to be run to measure the energy 

use in fan-only mode using the more 

accurate watt-meter. The proposed 

approach would minimize test burden 

associated with the measurement of fanonly mode. 

For the proposed amendments to 

incorporate the energy and water use 

associated with dishwasher water 

softener regeneration, manufacturers 

would need to run up to an additional 

ten cycles to ensure that a regeneration 

process is captured. DOE based this 

proposal on the information supplied by 

manufacturers that, on average, watersoftening dishwashers regenerate 

approximately once every six cycles. To 

minimize test burden, particularly for 

soil-sensing dishwashers, DOE proposes 

that these cycles would be run with no 

test load, since DOE believes that a 

substantial part of the burden for the 

existing test procedure is incurred by 

the preparation and application of soils 

to the dishware. DOE welcomes 

comment on this approach, as well as 

the alternative approach to add constant 

values for this energy and water use, 

which could reduce the test burden on 

manufacturers. DOE also seeks comment 

on any other alternative methods to 

initiate, identify, and measure the water 

softener regeneration process. 

The proposed clarifications for 

dishwasher test load and soiling 

specifications would not impact test 

burden because the test conduct would 

remain the same. The proposed 

clarification of the energy test cycle 

selection for certain soil-sensing 

dishwashers could change the test 

duration if the cycle time for the nonsoil-sensing normal cycle and required 

soil-sensing cycles are different, but the 

time could be shorter or longer 

depending on the specific model. For 

the proposed detergent dosing 

clarifications, test burden may be 

reduced, as the amendments would 

provide clear instructions on the 

appropriate method by which to 

determine the dosing amounts. DOE 

welcomes comment on the impacts of 

these proposed clarifications. 

As discussed in section III.E, today’s 

proposal to reference AHAM DH–1– 

2008 in the dehumidifier test procedure 

would newly specify the precision of 

digital temperature measurement 

devices for measuring wet-bulb and drybulb temperatures and the accuracy of 

the barometric pressure measurement 

instrument. DOE estimates the retail 

cost of such equipment as 

approximately $500. The proposed 

dehumidifier amendments would also 

allow the use of less accurate weight 

measurement equipment, which 

imposes no burden on manufacturers. 

The proposed test room requirements, 

however, could require the use of a 

larger test chamber than is specified 

under the current test procedure, and 

could also require different air handling 

equipment. Many test laboratories may 


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14Annual revenue estimates based on financial 

reports obtained from Hoover’s Inc., available 

online at www.hoovers.com. 

already be using AHAM DH–1–2008 

and thus may meet these requirements. 

In addition, for those laboratories that 

are recording data manually, the 

proposed shortened data recording 

intervals could result in three times the 

data recording events than are currently 

required. Because only four parameters 

are recorded for each event, however, 

the total increase in operator time is 

estimated to be less than 1 hour. DOE 

welcomes comment on the potential 

burden of the test room and data 

recording requirements for today’s 

proposal, including the prevalence of 

automatic data recording. 

IV. Procedural Issues and Regulatory 

Review 

DOE has concluded that the 

determinations made pursuant to the 

various procedural requirements 

applicable to the December 2010 NOPR 

and September 2011 SNOPR remain 

unchanged for this SNOPR. These 

determinations are set forth in the 

December 2010 NOPR (75 FR 75290, 

75317–19 (Dec. 2, 2010)) and the 

September 2011 SNOPR (76 FR 58346, 

58355 (Sept. 20, 2011)). An update to 

the Regulatory Flexibility Act 

certification is set forth below. 

The Regulatory Flexibility Act (5 

U.S.C. 601 et seq.) requires preparation 

of a regulatory flexibility analysis 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: 

www.gc.doe.gov. 

DOE reviewed today’s supplemental 

proposed rule under the provisions of 

the Regulatory Flexibility Act and the 

procedures and policies published on 

February 19, 2003. DOE tentatively 

concluded that the December 2010 

NOPR and September 2011 SNOPR 

would not have a significant impact on 

a substantial number of small entities, 

and today’s SNOPR contains no 

revisions to that proposal that would 

result in a significant impact on a 

substantial number of small entities. 

The updates to the factual basis for this 

certification are as follows: 

The Small Business Administration 

(SBA) considers a business entity to be 

small business, if, together with its 

affiliates, it employs less than a 

threshold number of workers specified 

in 13 CFR part 121. These size standards 

and codes are established by the North 

American Industry Classification 

System (NAICS). The threshold number 

for NAICS classification code 335228, 

titled ‘‘Other Major Household 

Appliance Manufacturing,’’ is 500 

employees; this classification 

specifically includes residential 

dishwasher manufacturers. 

Additionally, the threshold number for 

NAICS classification code 335221, titled 

‘‘Household Cooking Appliance 

Manufacturing,’’ is 750 employees; this 

classification specifically includes 

manufacturers of residential 

conventional cooking products. The 

threshold number for NAICS 

classification code 335211, titled 

‘‘Electric Housewares and Household 

Fan Manufacturing,’’ is 750 employees; 

this classification specifically includes 

manufacturers of dehumidifiers. 

Most of the manufacturers supplying 

residential dishwashers, dehumidifiers 

and/or conventional cooking products 

are large multinational corporations. 

DOE surveyed the AHAM member 

directory to identify manufacturers of 

residential dishwashers, dehumidifiers, 

and conventional cooking products. 

DOE then consulted publicly-available 

data, purchased company reports from 

vendors such as Dun and Bradstreet, 

and contacted manufacturers, where 

needed, to determine if they meet the 

SBA’s definition of a ‘‘small business 

manufacturing facility’’ and have their 

manufacturing facilities located within 

the United States. Based on this 

analysis, DOE estimates that there are 

two small businesses that manufacture 

conventional cooking products, four 

small businesses that manufacture 

dehumidifiers, and no small businesses 

that manufacture dishwashers. 

The proposed rule would amend 

DOE’s test procedures for dishwashers, 

dehumidifiers and cooking products. 

Because DOE is unaware of any small 

businesses that manufacture 

dishwashers, there would be no impact 

on such manufacturers due to the 

proposed amendments to DOE’s 

dishwasher test procedure. The 

proposed rule would amend DOE’s test 

procedures for dehumidifiers and 

conventional cooking products by 

incorporating testing provisions to 

address standby mode and off mode 

energy use in these products, as well as 

cooking products fan-only mode energy 

consumption. The test procedure 

amendments involve measuring power 

input when the product is in standby 

mode or off mode, as well as fan-only 

mode for a conventional cooking 

product. These tests would be 

conducted in the same facilities used for 

the current energy testing of these 

products, so there would be no 

additional facilities costs required by 

the proposed rule. In addition, while the 

watt-hour meter required for these tests 

might require greater accuracy than the 

watt-hour meter used for current energy 

testing, the investment required for a 

possible instrumentation upgrade would 

likely be relatively modest. It is possible 

that the manufacturers, or their testing 

facilities, already have equipment that 

meets the proposed meter requirements, 

but an Internet search of equipment that 

specifically meets the proposed 

requirements reveals a cost of 

approximately $2,000. The amendments 

proposed in today’s SNOPR would also 

update the industry test method for 

dehumidifiers. As discussed in section 

III.H, this update could impose on 

manufacturers a cost for new 

measurement equipment of 

approximately $500, as well as 

potentially increasing operator time by 

less than 1 hour over the course of a 24- 

hour test. These costs are small 

compared to the overall financial 

investment needed to undertake the 

business enterprise of testing consumer 

products which involves facilities, 

qualified staff, and specialized 

equipment. Based on its review of 

industry data,14 DOE estimates that the 

small dehumidifier and cooking product 

businesses have annual revenues of $10 

million to $60 million. 

DOE recognizes that the proposed 

updated reference to the industry 

dehumidifier test method could 

potentially require manufacturers to 

install a larger test chamber and 

different air handling equipment. 

However, DOE believes that 

manufacturers may already be using 

AHAM DH–1–2008 in certifying their 

products. DOE notes that one of the 

small businesses has products listed in 

AHAM’s current dehumidifier 

certification database, indicating that 

those tests were conducted according to 

DH–1–2008. In addition, AHAM 

selected an independent test laboratory 

to conduct dehumidifier testing and 

verification using DH–1–2008. DOE 

believes that testing that this laboratory 

performs for manufacturers to determine 

compliance with energy conservation 

standards would be conducted in the 

same facility. Therefore, DOE tentatively 


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concludes that small businesses would 

not be likely to require investments in 

facility upgrades if DOE amends the 

dehumidifier test procedure to reference 

DH–1–2008. 

Furthermore, the duration of the fanonly mode testing for conventional 

ovens and conventional ranges is 

generally not expected to exceed the 

time required to conduct current energy 

testing. DOE’s research indicates that 

the duration of fan-only mode for these 

products ranges from 10 minutes to 3.5 

hours. DOE estimates that the total time 

currently required for conventional 

oven testing (or for testing the 

conventional oven portion of a range) to 

be approximately 4 hours for products 

which are not equipped with the 

capability for forced convection or selfcleaning, with an additional 3 hours 

required for testing forced convection 

and an additional 4 hours required for 

testing self-clean operation. DOE’s 

research did not identify any 

conventional ovens or conventional 

ranges manufactured by either of the 

two small cooking products 

manufacturers that are equipped with 

either forced convection or self-clean 

capability. DOE estimates that fan-only 

mode testing in the absence of such 

features could increase testing time by 

3–88 percent. However, DOE’s research 

also suggests that none of the 

conventional ovens and conventional 

ranges manufactured by the two small 

cooking products businesses are capable 

of operation in fan-only mode, and 

therefore DOE believes it is unlikely that 

these manufacturers would be impacted 

by the proposed fan-only mode testing 

provisions. 

For these reasons, DOE continues to 

certify that the proposed rule would not 

have a significant economic impact on 

a substantial number of small entities. 

Accordingly, DOE has not prepared a 

regulatory flexibility analysis for this 

rulemaking. DOE will transmit the 

certification and supporting statement 

of factual basis to the Chief Counsel for 

Advocacy of the SBA for review under 

5 U.S.C. 605(b). DOE seeks comment on 

the updated certification set forth above. 

V. Public Participation 

A. Submission of Comments 

DOE will accept comments, data, and 

information regarding this SNOPR no 

later than the date provided in the DATES

section at the beginning of this notice. 

Interested parties may submit comments 

using any of the methods described in 

the ADDRESSES section at the beginning 

of this notice. 

Submitting comments via 

www.regulations.gov. The 

www.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 www.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 

www.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 www.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 www.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 

www.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. Email 

submissions are preferred. If you submit 

via mail or hand delivery, please 

provide all items on a CD, if feasible, in 

which case 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 are 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. 

Pursuant 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 


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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). 

B. Issues on Which DOE Seeks Comment 

Although comments are welcome on 

all aspects of this rulemaking, DOE is 

particularly interested in receiving 

comments and views of interested 

parties on the following issues: 

1. Fan-Only Mode 

DOE seeks comment on the proposal 

to measure energy use in fan-only mode. 

DOE also seeks comment on its analysis 

of fan-only mode for dishwashers and 

conventional cooking products. In 

particular, DOE welcomes input on its 

definition of fan-only mode, its 

determination of fan-only mode as an 

active mode, its proposed test procedure 

amendments to measure fan-only mode 

energy use for dishwashers and 

conventional ovens, and the inclusion 

of fan-only mode energy use in the 

efficiency metrics for these products. 

(See section III.A). 

2. Dishwasher Water Softener 

Regeneration 

DOE seeks comment on the proposal 

to measure water softener regeneration 

energy and water consumption for 

residential dishwashers. DOE also 

requests data on the number of times 

per year on average that the water 

softening regeneration process occurs, 

the percentage of households with 

water-softening dishwashers that use 

home water softening systems, and the 

average per-cycle and annual water and 

energy use associated with water 

softener regeneration. DOE also 

welcomes input on the methodologies 

proposed in today’s SNOPR to measure 

the water and energy use during 

regeneration, including the method of 

adding constant values for this water 

and energy use, and what those constant 

values should be. (See section III.B). 

3. Alternative Methodology for 

Calculating Annual Energy Use 

DOE invites comment on the 

proposed use of the alternative 

methodology for allocation of annual 

hours for each product. (See section 

III.C). 

4. Dishwasher Test Procedure 

Clarifications 

DOE invites comment on the 

approach to ensure the turbidity sensor 

in soil-sensing dishwashers remains 

calibrated; the method to select the 

energy test cycle to be used for soilsensing dishwasher testing; the clarified 

definition of normal cycle; the 

specifications for the test load, 

including alternatives for obsolete items 

including flatware, serving pieces, and 

possibly other items such as the cup and 

saucer; the method and calculations for 

preconditioning and determining the 

quantity of detergent to be added to the 

prewash and main wash portions of the 

test cycle; and the proposed detergent 

formulation. (See section III.C). 

5. Updated Dehumidifier Test Procedure 

DOE seeks comment on the proposed 

incorporation by reference of ANSI/ 

AHAM DH–1–2008 for the measurement 

of capacity and energy factor, and the 

calculation of integrated energy factor in 

DOE’s dehumidifier test procedure. (See 

section III.E). 

6. Obsolete Measures of Gas Pilot Light 

Energy Use 

DOE welcomes comment on its 

proposal to remove the provisions in the 

cooking products test procedure that 

measure gas pilot light energy 

consumption. (See section III.G). 

7. Test Burden 

DOE seeks comment on its analysis of 

the test burden associated with 

dishwasher and conventional cooking 

products fan-only mode testing and 

dishwasher water softener regeneration 

testing as proposed in today’s SNOPR, 

as well as its proposals related to the 

power supply and preconditioning 

requirements, the energy test cycle for 

dishwashers with a soil-sensing cycle 

selection separate from a non-soilsensing normal cycle, the test load and 

soiling requirements, and the detergent 

dosage for dishwashers. DOE also seeks 

comment on the burden associated with 

updating the industry test method for 

dehumidifiers. (See sections III.A and 

III.B). 

8. Small Businesses 

DOE seeks comment on its tentative 

conclusion and certification that the 

December 2010 NOPR, as modified by 

the September 2011 SNOPR and today’s 

SNOPR, would not have a significant 

economic 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 supplemental notice 

of proposed rulemaking. 

List of Subjects 

10 CFR Part 429 

Administrative practice and 

procedure, Confidential business 

information, Energy conservation, 

Household appliances, Incorporated by 

reference, and 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 April 25, 

2012. 

Kathleen B. Hogan, 

Deputy Assistant Secretary for Energy 

Efficiency, Energy Efficiency and Renewable 

Energy. 

For the reasons stated in the 

preamble, DOE proposes to amend parts 

429 and 430 of title 10 of the Code of 

Federal Regulations, as set forth below: 

PART 429—CERTIFICATION, 

COMPLIANCE, AND ENFORCEMENT 

FOR CONSUMER PRODUCTS AND 

COMMERCIAL AND INDUSTRIAL 

EQUIPMENT 

1. The authority citation for part 429 

continues to read as follows: 

Authority: 42 U.S.C. 6291–6317. 

2. Section 429.23 is amended by 

revising paragraph (a)(2)(ii) introductory 

text to read as follows: 

§ 429.23 Conventional cooking tops, 

conventional ovens, microwave ovens. 

(a) * * * 

(2) * * * 

(ii) Any represented value of the 

energy factor, integrated 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: 

* * * * * 

3. Section 429.36 is amended by 

revising paragraph (a)(2)(ii) introductory 

text to read as follows: 

§ 429.36 Dehumidifiers. 

(a) * * * 

(2) * * * 

(ii) Any represented value of the 

energy factor, integrated 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: 

* * * * * 


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PART 430—ENERGY CONSERVATION 

PROGRAM FOR CONSUMER 

PRODUCTS 

1. The authority citation for part 430 

continues to read as follows: 

Authority: 42 U.S.C. 6291–6309; 28 U.S.C. 

2461 note. 

2. Section 430.3 is amended: 

a. By redesignating paragraphs (h)(1) 

through (h)(5) as (h)(2) through (h)(6); 

b. By adding paragraph (h)(1); and 

c. By revising paragraph (m)(2). 

The additions and revisions read as 

follows: 

§ 430.3 Materials incorporated by 

reference. 

* * * * * 

(h) * * * 

(1) ANSI/AHAM DH–1–2008 (‘‘DH–1– 

2008’’), Dehumidifiers, (2008, ANSI 

approved May 9, 2008), IBR approved 

for appendix X to subpart B. 

* * * * * 

(m) * * * 

(2) IEC Standard 62301 (‘‘IEC 62301’’), 

Household electrical appliances— 

Measurement of standby power (Edition 

2.0, 2011–01), IBR approved for 

appendix C, appendix I, appendix J2, 

and appendix X to subpart B. 

* * * * * 

3. Section 430.23 is amended by 

revising paragraphs (c), (i), and (z) to 

read as follows: 

§ 430.23 Test procedures for the 

measurement of energy and water 

consumption. 

* * * * * 

(c) Dishwashers. (1) The Estimated 

Annual Operating Cost (EAOC) for 

dishwashers must be rounded to the 

nearest dollar per year and is defined as 

follows: 

(i) When cold water (50 °F) is used, 

(A) For dishwashers having a 

truncated normal cycle as defined in 

section 1.23 of appendix C to this 

subpart, EAOC = (De×S) + 

(De×N×(M¥(ED/2))) may be used for 

units manufactured until (date 180 days 

after date of publication of test 

procedure final rule in the Federal 

Register); 

(B) For dishwashers having a 

truncated normal cycle as defined in 

section 1.23 of appendix C to this 

subpart, EAOC = (De×ETLP) + (De×N×(M+ 

MWS+EF¥(ED/2))) must be used for 

units manufactured on or after (date 180 

days after date of publication of test 

procedure final rule in the Federal 

Register); 

(C) For dishwashers not having a 

truncated normal cycle, EAOC = (De×S) 

+ (De×N×M) may be used for units 

manufactured until (date 180 days after 

date of publication of test procedure 

final rule in the Federal Register); 

(D) For dishwashers not having a 

truncated normal cycle, EAOC = 

(De×ETLP) + (De×N×(M+ MWS+EF)) must 

be used for units manufactured on or 

after (date 180 days after date of 

publication of test procedure final rule 

in the Federal Register). 

Where, 

De = the representative average unit cost of 

electrical energy, in dollars per kilowatthour, as provided by the Secretary, 

S = the annual simplified standby energy 

consumption in kilowatt-hours per year 

and determined according to section 5.7 

of appendix C to this subpart, 

ETLP = the annual combined low-power mode 

energy consumption in kilowatt-hours 

per year and determined according to 

section 5.8 of appendix C to this subpart, 

N = the representative average dishwasher 

use of 215 cycles per year, 

M = the machine energy consumption per 

cycle for the normal cycle as defined in 

section 1.12 of appendix C to this 

subpart, in kilowatt-hours and 

determined according to section 5.1.1 of 

appendix C to this subpart for non-soilsensing dishwashers and section 5.1.2 of 

appendix C to this subpart for soilsensing dishwashers, 

MWS = the machine energy consumption per 

cycle for water softener regeneration, in 

kilowatt-hours and determined 

according to section 5.1.3 of appendix C 

to this subpart, 

EF = the fan-only mode energy consumption 

per cycle, in kilowatt-hours and 

determined according to section 5.2 of 

appendix C to this subpart, and 

ED = the drying energy consumption defined 

as energy consumed using the power-dry 

feature after the termination of the last 

rinse option of the normal cycle and 

determined according to section 5.3 of 

appendix C to this subpart. 

(E) Manufacturers calculating EAOC 

pursuant to paragraph (c)(1)(i)(A) of this 

section should calculate EAEU pursuant 

to paragraph (c)(2)(i)(A) of this section. 

Manufacturers calculating EAOC 

pursuant to paragraph (c)(1)(i)(B) of this 

section should calculate EAEU pursuant 

to paragraph (c)(2)(i)(B) of this section. 

Manufacturers calculating EAOC 

pursuant to paragraph (c)(1)(i)(C) of this 

section should calculate EAEU pursuant 

to paragraph (c)(2)(ii)(A) of this section. 

Manufacturers calculating EAOC 

pursuant to paragraph (c)(1)(i)(D) of this 

section should calculate EAEU pursuant 

to paragraph (c)(2)(ii)(B) of this section. 

(ii) When electrically-heated water 

(120 °F or 140 °F) is used, 

(A) For dishwashers having a 

truncated normal cycle as defined in 

section 1.23 of appendix C to this 

subpart, EAOC = (De×S) + 

(De×N×(M¥(ED/2))) + (De×N×W) may be 

used for units manufactured until (date 

180 days after date of publication of test 

procedure final rule in the Federal 

Register); 

(B) For dishwashers having a 

truncated normal cycle as defined in 

section 1.23 of appendix C to this 

subpart, EAOC = (De×ETLP) + 

(De×N×(M+MWS+EF¥(ED/2))) + 

(De×N×(W+WWS)) must be used for units 

manufactured on or after (date 180 days 

after date of publication of test 

procedure final rule in the Federal 

Register); 

(C) For dishwashers not having a 

truncated normal cycle, EAOC = (De×S) 

+ (De×N×M) + (De×N×W) may be used 

for units manufactured until (date 180 

days after date of publication of test 

procedure final rule in the Federal 

Register); 

(D) For dishwashers not having a 

truncated normal cycle, EAOC = 

(De×ETLP) + (De×N×(M+MWS+EF)) + 

(De×N×(W+WWS)) must be used for units 

manufactured on or after (date 180 days 

after date of publication of test 

procedure final rule in the Federal 

Register). 

Where, 

De, S, ETLP, N, M, MWS, EF, and ED, are 

defined in paragraph (c)(1)(i) of this 

section, 

W = the water energy consumption per cycle 

for the normal cycle as defined in section 

1.12 of appendix C to this subpart, in 

kilowatt-hours per cycle and determined 

according to section 5.5 of appendix C to 

this subpart, and 

WWS = the water softener regeneration water 

energy consumption per cycle in 

kilowatt-hours per cycle and determined 

according to section 5.5 of appendix C to 

this subpart. 

(E) Manufacturers calculating EAOC 

pursuant to paragraph (c)(1)(ii)(A) of 

this section should calculate EAEU 

pursuant to paragraph (c)(2)(i)(A) of this 

section. Manufacturers calculating 

EAOC pursuant to paragraphs 

(c)(1)(ii)(B) of this section should 

calculate EAEU pursuant to paragraph 

(c)(2)(i)(B) of this section. Manufacturers 

calculating EAOC pursuant to paragraph 

(c)(1)(ii)(C) of this section should 

calculate EAEU pursuant to paragraph 

(c)(2)(ii)(A) of this section. 

Manufacturers calculating EAOC 

pursuant to paragraph (c)(1)(ii)(D) of 

this section should calculate EAEU 

pursuant to paragraph (c)(2)(ii)(B) of this 

section. 

(iii) When gas-heated or oil-heated 

water is used, 

(A) For dishwashers having a 

truncated normal cycle as defined in 

section 1.23 of appendix C to this 

subpart, 

EAOCg = (De×S) + (De×N×(M¥(ED/2))) 

+ (Dg×N×Wg) may be used for units 


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manufactured until (date 180 days after 

date of publication of test procedure 

final rule in the Federal Register); 

(B) For dishwashers having a 

truncated normal cycle as defined in 

section 1.23 of appendix C to this 

subpart, EAOCg = (De×ETLP) + 

(De×N×(M+MWS+EF¥(ED/2))) + 

(Dg×N×(Wg+WWSg)) must be used for 

units manufactured on or after (date 180 

days after date of publication of test 

procedure final rule in the Federal 

Register); 

(C) For dishwashers not having a 

truncated normal cycle, EAOCg = (De×S) 

+ (De×N×M) + (Dg×N×Wg) may be used 

for units manufactured until (date 180 

days after date of publication of test 

procedure final rule in the Federal 

Register); 

(D) For dishwashers not having a 

truncated normal cycle, EAOCg = 

(De×ETLP) + (De×N×(M+MWS+EF)) + 

(Dg×N×(Wg+WWSg)) must be used for 

units manufactured on or after (date 180 

days after date of publication of test 

procedure final rule in the Federal 

Register). 

Where, 

De, S, ETLP, N, M, MWS, EF, and ED are 

defined in paragraph (c)(1)(i) of this 

section, 

Dg = the representative average unit cost of 

gas or oil, as appropriate, in dollars per 

Btu, as provided by the Secretary, 

Wg = the water energy consumption per cycle 

for the normal cycle as defined in section 

1.12 of appendix C to this subpart, in 

Btus per cycle and determined according 

to section 5.6 of appendix C to this 

subpart, and 

WWSg = the water softener regeneration 

energy consumption per cycle in Btu per 

cycle and determined according to 

section 5.6 of appendix C to this subpart. 

(E) Manufacturers calculating EAOC 

pursuant to paragraph (c)(1)(iii)(A) of 

this section should calculate EAEU 

pursuant to paragraph (c)(2)(i)(A) of this 

section. Manufacturers calculating 

EAOC pursuant to paragraphs 

(c)(1)(iii)(B) of this section should 

calculate EAEU pursuant to paragraph 

(c)(2)(i)(B) of this section. Manufacturers 

calculating EAOC pursuant to paragraph 

(c)(1)(iii)(C) of this section should 

calculate EAEU pursuant to paragraph 

(c)(2)(ii)(A) of this section. 

Manufacturers calculating EAOC 

pursuant to paragraph (c)(1)(iii)(D) of 

this section should calculate EAEU 

pursuant to paragraph (c)(2)(ii)(B) of this 

section. 

(2) The estimated annual energy use, 

EAEU, expressed in kilowatt-hours per 

year must be rounded to the nearest 

kilowatt-hour per year and is defined as 

follows: 

(i) For dishwashers having a truncated 

normal cycle as defined in section 1.23 

of appendix C to this subpart, 

(A) EAEU = (M¥(ED/2)+W)×N+S may 

be used for units manufactured: 

(i) Before (date 180 days after date of 

publication of test procedure final rule 

in the Federal Register) to make 

representations of energy efficiency; and 

(ii) Before the compliance date of any 

amended standards to demonstrate 

compliance. 

(B) EAEU = (M+MWS+EF¥(ED/ 

2)+W+WWS)×N+(ETLP) must be used for 

units manufactured: 

(i) On or after (date 180 days after 

date of publication of test procedure 

final rule in the Federal Register) to 

make representations of energy 

efficiency; and 

(ii) On or after the compliance date of 

any amended standards to demonstrate 

compliance. 

Where, 

M, MWS, S, ED, N, EF, and ETLP are defined 

in paragraph (c)(1)(i) of this section, and 

W and WWS, are defined in paragraph 

(c)(1)(ii) of this section. 

(C) Manufacturers calculating EAEU 

pursuant to paragraph (c)(2)(i)(A) of this 

section should calculate EAOC pursuant 

to paragraph (c)(1)(i)(A), (c)(1)(ii)A, or 

(c)(1)(iii)(A) of this section, as 

appropriate. Manufacturers calculating 

EAEU pursuant to paragraph (c)(2)(i)(B) 

of this section should calculate EAOC 

pursuant to paragraph (c)(1)(i)(B), 

(c)(1)(ii)(B), or (c)(1)(ii)(B) of this 

section, as appropriate. 

(ii) For dishwashers not having a 

truncated normal cycle: 

(A) EAEU = (M+W)×N+S may be used 

for units manufactured: 

(i) Before (date 180 days after date of 

publication of test procedure final rule 

in the Federal Register) to make 

representations of energy efficiency; and 

(ii) Before the compliance date of any 

amended standards to demonstrate 

compliance. 

(B) EAEU = 

(M+MWS+EF+W+WWS)×N+ETLP must be 

used for units manufactured: 

(i) On or after (date 180 days after 

date of publication of test procedure 

final rule in the Federal Register) to 

make representations of energy 

efficiency; and 

(ii) On or after the compliance date of 

any amended standards to demonstrate 

compliance. 

Where, 

M, MWS, S, N, EF, and ETLP are defined in 

paragraph (c)(1)(i) of this section, and W 

and WWS are defined in paragraph 

(c)(1)(ii) of this section. 

(C) Manufacturers calculating EAEU 

pursuant to paragraph (c)(2)(ii)(A) of 

this section should calculate EAOC 

pursuant to paragraph (c)(1)(i)(C), 

(c)(1)(ii)(C), or (c)(1)(iii)(C) of this 

section, as appropriate. Manufacturers 

calculating EAEU pursuant to paragraph 

(c)(2)(ii)(B) of this section should 

calculate EAOC pursuant to paragraph 

(c)(1)(i)(D), (c)(1)(ii)(D), or (c)(1)(iii)(D) 

of this section, as appropriate. 

(3) The water consumption, V, and 

the sum of the water consumption, V, 

and the water consumption during 

water softener regeneration, VWS, 

expressed in gallons per cycle and 

defined in section 5.4 of appendix C to 

this subpart, must be rounded to one 

decimal place. 

(i) Water consumption, V, may be 

measured for units manufactured: 

(A) Before (date 180 days after date of 

publication of test procedure final rule 

in the Federal Register) to make 

representations of energy efficiency; and 

(B) Before the compliance date of any 

amended standards to demonstrate 

compliance. 

(ii) Manufacturers calculating water 

consumption pursuant to paragraph 

(c)(3)(i) of this section should calculate 

EAOC as described in paragraph 

(c)(1)(i)(A), (c)(1)(i)(C), (c)(1)(ii)(A), 

(c)(1)(ii)(C), (c)(1)(iii)(A), or (c)(1)(iii)(C) 

of this section, as appropriate. 

Manufacturers calculating water 

consumption pursuant to paragraph 

(c)(3)(i) of this section should calculate 

EAUE as described in paragraph 

(c)(2)(i)(A) or (c)(2)(ii)(A) of this section, 

as appropriate. 

(iii) The sum of the water 

consumption, V, and the water 

consumption during water softener 

regeneration, VWS, must be measured for 

units manufactured: 

(A) On or after (date 180 days after 

date of publication of test procedure 

final rule in the Federal Register) to 

make representations of energy 

efficiency; and 

(B) On or after the compliance date of 

any amended standards to demonstrate 

compliance. 

(C) Manufacturers calculating water 

consumption pursuant to paragraph 

(c)(3)(iii) of this section should calculate 

EAOC as described in paragraph 

(c)(1)(i)(B), (c)(1)(i)(D), (c)(1)(ii)(B), 

(c)(1)(ii)(D), (c)(1)(iii)(B), or (c)(1)(iii)(D) 

of this section, as appropriate. 

Manufacturers calculating water 

consumption pursuant to paragraph 

(c)(3)(i) of this section should calculate 

EAUE as described in paragraph 

(c)(2)(i)(B) or (c)(2)(ii)(B) of this section, 

as appropriate. 

(4) Other useful measures of energy 

consumption for dishwashers are those 

which the Secretary determines are 

likely to assist consumers in making 


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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 31461 

purchasing decisions and which are 

derived from the application of 

appendix C to this subpart. 

* * * * * 

(i) Kitchen ranges and ovens. (1) The 

estimated annual operating cost for 

conventional ranges, conventional 

cooking tops, and conventional ovens 

shall be the sum of the following 

products: 

(i) The total integrated annual 

electrical energy consumption for any 

electrical energy usage, in kilowatthours (kWhs) per year, times the 

representative average unit cost for 

electricity, in dollars per kWh, as 

provided pursuant to section 323(b)(2) 

of the Act; plus 

(ii) The total annual gas energy 

consumption for any natural gas usage, 

in British thermal units (Btus) per year, 

times the representative average unit 

cost for natural gas, in dollars per Btu, 

as provided pursuant to section 

323(b)(2) of the Act; plus 

(iii) The total annual gas energy 

consumption for any propane usage, in 

Btus per year, times the representative 

average unit cost for propane, in dollars 

per Btu, as provided pursuant to section 

323(b)(2) of the Act. The total annual 

energy consumption for conventional 

ranges, conventional cooking tops, and 

conventional ovens shall be as 

determined according to sections 4.3, 

4.2.2, and 4.1.2, respectively, of 

appendix I to this subpart. For 

conventional gas cooking tops, total 

integrated annual electrical energy 

consumption shall be equal to ECTSO, 

defined in section 4.2.2.2.4 of appendix 

I to this subpart. The estimated annual 

operating cost shall be rounded off to 

the nearest dollar per year. 

(2) The cooking efficiency for 

conventional cooking tops and 

conventional ovens shall be the ratio of 

the cooking energy output for the test to 

the cooking energy input for the test, as 

determined according to sections 4.2.1 

and 4.1.3, respectively, of appendix I to 

this subpart. The final cooking 

efficiency values shall be rounded off to 

three significant digits. 

(3) [Reserved] 

(4) The energy factor for conventional 

ranges, conventional cooking tops, and 

conventional ovens shall be the ratio of 

the annual useful cooking energy output 

to the total annual energy input, as 

determined according to sections 4.3, 

4.2.3.1, and 4.1.4.1, respectively, of 

appendix I to this subpart. The final 

energy factor values shall be rounded off 

to three significant digits. 

(5) The integrated energy factor for 

conventional ranges, conventional 

cooking tops, and conventional ovens 

shall be the ratio of the annual useful 

cooking energy output to the total 

integrated annual energy input, as 

determined according to sections 4.3, 

4.2.3.2, and 4.1.4.2, respectively, of 

appendix I to this subpart. The final 

integrated energy factor values shall be 

rounded off to three significant digits. 

(6) There shall be two estimated 

annual operating costs, two cooking 

efficiencies, and two energy factors for 

convertible cooking appliances— 

(i) An estimated annual operating 

cost, a cooking efficiency, and an energy 

factor which represent values for those 

three measures of energy consumption 

for the operation of the appliance with 

natural gas; and 

(ii) An estimated annual operating 

cost, a cooking efficiency, and an energy 

factor which represent values for those 

three measures of energy consumption 

for the operation of the appliance with 

LP-gas. 

(7) There shall be two integrated 

energy factors for convertible cooking 

appliances— 

(i) An integrated energy factor which 

represents the value for this measure of 

energy consumption for the operation of 

the appliance with natural gas; and 

(ii) An integrated energy factor which 

represents the value for this measure of 

energy consumption for the operation of 

the appliance with LP-gas. 

(8) The estimated annual operating 

cost for convertible cooking appliances 

which represents natural gas usage, as 

described in paragraph (i)(6)(i) of this 

section, shall be determined according 

to paragraph (i)(1) of this section using 

the total annual gas energy consumption 

for natural gas times the representative 

average unit cost for natural gas. 

(9) The estimated annual operating 

cost for convertible cooking appliances 

which represents LP-gas usage, as 

described in paragraph (i)(6)(ii) of this 

section, shall be determined according 

to paragraph (i)(1) of this section using 

the representative average unit cost for 

propane times the total annual energy 

consumption of the test gas, either 

propane or natural gas. 

(10) The cooking efficiency for 

convertible cooking appliances which 

represents natural gas usage, as 

described in paragraph (i)(6)(i) of this 

section, shall be determined according 

to paragraph (i)(2) of this section when 

the appliance is tested with natural gas. 

(11) The cooking efficiency for 

convertible cooking appliances which 

represents LP-gas usage, as described in 

paragraph (i)(6)(ii) of this section, shall 

be determined according to paragraph 

(i)(2) of this section, when the appliance 

is tested with either natural gas or 

propane. 

(12) The energy factor for convertible 

cooking appliances which represents 

natural gas usage, as described in 

paragraph (i)(6)(i) of this section, shall 

be determined according to paragraph 

(i)(4) of this section when the appliance 

is tested with natural gas. 

(13) The integrated energy factor for 

convertible cooking appliances which 

represents natural gas usage, as 

described in paragraph (i)(7)(i) of this 

section, shall be determined according 

to paragraph (i)(5) of this section when 

the appliance is tested with natural gas. 

(14) The energy factor for convertible 

cooking appliances which represents 

LP-gas usage, as described in paragraph 

(i)(6)(ii) of this section, shall be 

determined according to paragraph (i)(4) 

of this section when the appliance is 

tested with either natural gas or 

propane. 

(15) The integrated energy factor for 

convertible cooking appliances which 

represents LP-gas usage, as described in 

paragraph (i)(7)(ii) of this section, shall 

be determined according to paragraph 

(i)(5) of this section when the appliance 

is tested with natural gas or propane. 

(16) Other useful measures of energy 

consumption for conventional ranges, 

conventional cooking tops, and 

conventional ovens shall be those 

measures of energy consumption which 

the Secretary determines are likely to 

assist consumers in making purchasing 

decisions and which are derived from 

the application of appendix I to this 

subpart. 

* * * * * 

(z) Dehumidifiers. (1) The energy 

factor for dehumidifiers, expressed in 

liters per kilowatt hour (L/kWh), shall 

be measured in accordance with section 

4.1 of appendix X of this subpart. 

(2) The integrated energy factor for 

dehumidifiers, expressed in L/kWh, 

shall be determined according to 

paragraph 5.2 of appendix X to this 

subpart. 

* * * * * 

Appendix C—[Amended] 

4. Appendix C to subpart B of part 

430 is amended: 

a. By revising the introductory text 

after the appendix heading; 

b. By revising section 1, Definitions; 

c. By revising section 2, Testing 

Conditions; 

d. In section 3. Instrumentation, by: 

1. Revising section 3.5; and 

2. Adding new section 3.8; 

e. By revising section 4, Test Cycle 

and Measurements: and 

f. By revising section 5, Calculation of 

Derived Results From Test 

Measurements. 


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The additions and revisions read as 

follows: 

Appendix C to Subpart B of Part 430— 

Uniform Test Method for Measuring the 

Energy Consumption of Dishwashers 

Note: The procedures and calculations that 

refer to the combined low-power mode, fanonly mode, and water softener energy 

consumption (i.e., sections 2.6.1.1, 2.6.2.1, 

2.6.3.1, 4.1, 4.1.1, 4.1.2, 4.2.2, 4.4, 4.4.1, 

4.4.2, 5.1.3, 5.2, 5.2.1, 5.2.2, 5.4.3, 5.5.1.2, 

5.5.2.2, 5.6.1.2, 5.6.2.2, and 5.8 of this 

appendix) need not be performed to 

determine compliance with energy 

conservation standards for dishwashers at 

this time. However, any representation 

related to standby mode and off mode energy 

consumption of these products made after 

(date 180 days after date of publication of the 

test procedure final rule in the Federal 

Register) must be based upon results 

generated under this test procedure using 

sections 4.4, 4.4.1, 4.4.2, and 5.8 of this 

appendix and disregarding sections 4.3 and 

5.7 of this appendix, consistent with the 

requirements of 42 U.S.C. 6293(c)(2). Upon 

the compliance date for any amended energy 

conservation standards that incorporate 

standby mode and off mode energy 

consumption, compliance with the 

applicable provisions of this test procedure 

will also be required. 

1. Definitions 

1.1 Active mode means a mode in which 

the dishwasher is connected to a mains 

power source, has been activated, and is 

performing one of the main functions of 

washing, rinsing, or drying (when a drying 

process is included) dishware, glassware, 

eating utensils, and most cooking utensils by 

chemical, mechanical, and/or electrical 

means, or is involved in functions necessary 

for these main functions, such as admitting 

water into the dishwasher, pumping water 

out of the dishwasher, circulating air, or 

regenerating an internal water softener. 

1.2 AHAM means the Association of 

Home Appliance Manufacturers. 

1.3 Compact dishwasher means a 

dishwasher that has a capacity of less than 

eight place settings plus six serving pieces as 

specified in ANSI/AHAM DW–1 

(incorporated by reference; see § 430.3), using 

the test load specified in section 2.7 of this 

appendix. 

1.4 Combined low-power mode means the 

aggregate of available modes other than 

active mode. 

1.5 Cycle means a sequence of operations 

of a dishwasher which performs a complete 

dishwashing function, and may include 

variations or combinations of washing, 

rinsing, and drying. 

1.6 Cycle finished mode means a standby 

mode which provides continuous status 

display following operation in active mode. 

1.7 Cycle type means any complete 

sequence of operations capable of being 

preset on the dishwasher prior to the 

initiation of machine operation. 

1.8 Fan-only mode means an active mode 

in which a fan circulates air for a finite 

period of time after the end of the cycle, as 

indicated to the consumer. 

1.9 IEC 62301 means the standard 

published by the International 

Electrotechnical Commission, titled 

‘‘Household electrical appliances— 

Measurement of standby power,’’ Publication 

62301 (Edition 2.0, 2011–01) (incorporated 

by reference; see § 430.3). 

1.10 Inactive mode means a standby 

mode that facilitates the activation of active 

mode by remote switch (including remote 

control), internal sensor, or timer, or that 

provides continuous status display. 

1.11 Non-soil-sensing dishwasher means 

a dishwasher that does not have the ability 

to adjust automatically any energy 

consuming aspect of a wash cycle based on 

the soil load of the dishes. 

1.12 Normal cycle means the cycle type, 

including wash and drying temperature 

options, recommended by the manufacturer 

for completely washing a full load of 

normally soiled dishes including the powerdry feature. 

1.13 Off mode means a mode in which 

the dishwasher is connected to a mains 

power source and is not providing any active 

mode or standby mode function, and where 

the mode may persist for an indefinite time. 

An indicator that only shows the user that 

the product is in the off position is included 

within the classification of an off mode. 

1.14 Power-dry feature means the 

introduction of electrically-generated heat 

into the washing chamber for the purpose of 

improving the drying performance of the 

dishwasher. 

1.15 Preconditioning cycle means a cycle 

that includes a fill, circulation, and drain to 

ensure that the water lines and sump area of 

the pump are primed. 

1.16 Sensor heavy response means, for 

standard dishwashers, the set of operations 

in a soil-sensing dishwasher for completely 

washing a load of dishes, four place settings 

of which are soiled according to ANSI/ 

AHAM DW–1 (incorporated by reference; see 

§ 430.3). For compact dishwashers, this 

definition is the same, except that two soiled 

place settings are used instead of four. 

1.17 Sensor light response means, for 

both standard and compact dishwashers, the 

set of operations in a soil-sensing dishwasher 

for completely washing a load of dishes, one 

place setting of which is soiled with half of 

the gram weight of soils for each item 

specified in a single place setting according 

to ANSI/AHAM DW–1 (incorporated by 

reference; see § 430.3). 

1.18 Sensor medium response means, for 

standard dishwashers, the set of operations 

in a soil-sensing dishwasher for completely 

washing a load of dishes, two place settings 

of which are soiled according to ANSI/ 

AHAM DW–1 (incorporated by reference; see 

§ 430.3). For compact dishwashers, this 

definition is the same, except that one soiled 

place setting is used instead of two. 

1.19 Simplified standby mode means the 

lowest power consumption mode which 

cannot be switched off or influenced by the 

user and that may persist for an indefinite 

time when the dishwasher is connected to 

the main electricity supply and used in 

accordance with the manufacturer’s 

instructions. 

1.20 Soil-sensing dishwasher means a 

dishwasher that has the ability to adjust any 

energy-consuming aspect of a wash cycle 

based on the soil load of the dishes. 

1.21 Standard dishwasher means a 

dishwasher that has a capacity equal to or 

greater than eight place settings plus six 

serving pieces as specified in ANSI/AHAM 

DW–1 (incorporated by reference; see 

§ 430.3), using the test load specified in 

section 2.7 of this appendix. 

1.22 Standby mode means a mode in 

which the dishwasher is connected to a 

mains power source and offers one or more 

of the following user-oriented or protective 

functions which may persist for an indefinite 

time: (a) to facilitate the activation of other 

modes (including activation or deactivation 

of active mode) by remote switch (including 

remote control), internal sensor, or timer; (b) 

continuous functions, including information 

or status displays (including clocks) or 

sensor-based functions. A timer is a 

continuous clock function (which may or 

may not be associated with a display) that 

provides regular scheduled tasks (e.g., 

switching) and that operates on a continuous 

basis. 

1.23 Truncated normal cycle means the 

normal cycle interrupted to eliminate the 

power-dry feature after the termination of the 

last rinse operation. 

1.24 Truncated sensor heavy response 

means the sensor heavy response interrupted 

to eliminate the power-dry feature after the 

termination of the last rinse operation. 

1.25 Truncated sensor light response 

means the sensor light response interrupted 

to eliminate the power-dry feature after the 

termination of the last rinse operation. 

1.26 Truncated sensor medium response 

means the sensor medium response 

interrupted to eliminate the power-dry 

feature after the termination of the last rinse 

operation. 

1.27 Water-heating dishwasher means a 

dishwasher which, as recommended by the 

manufacturer, is designed for heating cold 

inlet water (nominal 50 °F) or designed for 

heating water with a nominal inlet 

temperature of 120 °F. Any dishwasher 

designated as water-heating (50 °F or 120 °F 

inlet water) must provide internal water 

heating to above 120 °F in a least one wash 

phase of the normal cycle. 

1.28 Water-softening dishwasher means a 

dishwasher which incorporates a water 

softening system that periodically consumes 

additional water and energy during the cycle 

to regenerate. 

2. Testing Conditions 

2.1 Installation requirements. Install the 

dishwasher according to the manufacturer’s 

instructions. A standard or compact undercounter or under-sink dishwasher must be 

tested in a rectangular enclosure constructed 

of nominal 0.374 inch (9.5 mm) plywood 

painted black. The enclosure must consist of 

a top, a bottom, a back, and two sides. If the 

dishwasher includes a counter top as part of 

the appliance, omit the top of the enclosure. 

Bring the enclosure into the closest contact 

with the appliance that the configuration of 

the dishwasher will allow. For standby mode 

and off mode testing, these products shall 

also be installed in accordance with section 

5.2 of IEC 62301 (incorporated by reference; 


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see § 430.3), disregarding the provisions 

regarding batteries and the determination, 

classification, and testing of relevant modes. 

2.2 Electrical energy supply. 

2.2.1 Dishwashers that operate with an 

electrical supply of 115 volts. Maintain the 

electrical supply to the dishwasher at 115 

volts ±2 percent and within 1 percent of the 

nameplate frequency as specified by the 

manufacturer. Maintain a continuous 

electrical supply to the unit throughout 

testing, including the preconditioning cycle, 

specified in section 2.9 of this appendix, and 

in between all test cycles. 

2.2.2 Dishwashers that operate with an 

electrical supply of 240 volts. Maintain the 

electrical supply to the dishwasher at 240 

volts ± 2 percent and within 1 percent of the 

nameplate frequency as specified by the 

manufacturer. Maintain a continuous 

electrical supply to the unit throughout 

testing, including the preconditioning cycle, 

specified in section 2.9 of this appendix, and 

in between all test cycles. 

2.2.3 Supply voltage waveform. For the 

standby mode and off mode testing, maintain 

the electrical supply voltage waveform 

indicated in section 4.3.2 of IEC 62301 

(incorporated by reference; see § 430.3). 

2.3 Water temperature. Measure the 

temperature of the water supplied to the 

dishwasher using a temperature measuring 

device as specified in section 3.1 of this 

appendix. 

2.3.1 Dishwashers to be tested at a 

nominal 140 °F inlet water temperature. 

Maintain the water supply temperature at 

140° ± 2 °F. 

2.3.2 Dishwashers to be tested at a 

nominal 120 °F inlet water temperature. 

Maintain the water supply temperature at 

120° ± 2 °F. 

2.3.3 Dishwashers to be tested at a 

nominal 50 °F inlet water temperature. 

Maintain the water supply temperature at 50° 

± 2 °F. 

2.4 Water pressure. Using a water 

pressure gauge as specified in section 3.4 of 

this appendix, maintain the pressure of the 

water supply at 35 ± 2.5 pounds per square 

inch gauge (psig) when the water is flowing. 

2.5 Ambient temperature. 

2.5.1 Active mode ambient and machine 

temperature. Using a temperature measuring 

device as specified in section 3.1 of this 

appendix, maintain the room ambient air 

temperature at 75° ± 5 °F and ensure that the 

dishwasher and the test load are at room 

ambient temperature at the start of each test 

cycle. 

2.5.2 Standby mode and off mode 

ambient temperature. For standby mode and 

off mode testing, maintain room ambient air 

temperature conditions as specified in 

section 4.2 of IEC 62301 (incorporated by 

reference; see § 430.3). 

2.6 Test cycle and load. 

2.6.1 Non-soil-sensing dishwashers to be 

tested at a nominal inlet temperature of 

140 °F. 

2.6.1.1 If the unit is a water-softening 

dishwasher, it must be tested first on the 

normal cycle without a test load for water 

softener regeneration, as specified in section 

4.1 of this appendix. The water softener 

setting shall be selected according to 

manufacturer instructions for a water 

hardness of 217 mg/L (217 ppm or 12.6 

grains per gallon). Ensure that dishwasher 

salt is supplied to the water softener system 

according to the manufacturer’s instructions. 

2.6.1.2 All non-soil-sensing dishwashers 

to be tested according to section 4.2 of this 

appendix at a nominal inlet temperature of 

140 °F must then be tested on the normal 

cycle and truncated normal cycle without a 

test load if the dishwasher does not heat 

water in the normal cycle. Water-softening 

dishwashers shall be tested using the lowest 

water hardness water softener setting. 

2.6.2 Non-soil-sensing dishwashers to be 

tested at a nominal inlet temperature of 

50 °F or 120 °F. 

2.6.2.1 If the unit is a water-softening 

dishwasher, it must be tested first without a 

test load on the normal cycle for water 

softener regeneration, as specified in section 

4.1 of this appendix. The water softener 

setting shall be selected according to 

manufacturer instructions for a water 

hardness of 217 mg/L (217 ppm or 12.6 

grains per gallon). Ensure that dishwasher 

salt is supplied to the water softener system 

according to the manufacturer’s instructions. 

2.6.2.2 All non-soil-sensing dishwashers 

to be tested at a nominal inlet temperature of 

50 °F or 120 °F must then be tested according 

to section 4.2 of this appendix on the normal 

cycle with a clean load of eight place settings 

plus six serving pieces, as specified in 

section 2.7 of this appendix. If the capacity 

of the dishwasher, as stated by the 

manufacturer, is less than eight place 

settings, then the test load must be the stated 

capacity. Water-softening dishwashers shall 

be tested using the lowest water hardness 

water softener setting. 

2.6.3 Soil-sensing dishwashers to be 

tested at a nominal inlet temperature of 

50 °F, 120 °F, or 140 °F. 

2.6.3.1 Water-softening dishwashers must 

be tested first without a test load on the 

normal cycle for water softener regeneration, 

as specified in section 4.1 of this appendix. 

The water softener setting shall be selected 

according to manufacturer instructions for a 

water hardness of 217 mg/L (217 ppm or 12.6 

grains per gallon). Ensure that dishwasher 

salt is supplied to the water softener system 

according to the manufacturer’s instructions. 

2.6.3.2 All soil-sensing dishwashers shall 

then be tested according to section 4.2 of this 

appendix. If soil-sensing is available as an 

option in the normal cycle, the normal cycle 

shall be selected, with the soil-sensing option 

if necessary. If soil-sensing is not available 

for the normal cycle, the cycle type that uses 

the soil-sensing system, and contains all the 

elements of a normal cycle including the 

power-dry feature (if such a feature is 

provided) shall be selected. The dishwasher 

shall be tested first for the sensor heavy 

response, then tested for the sensor medium 

response, and finally for the sensor light 

response with the following combinations of 

soiled and clean test loads. Water-softening 

dishwashers shall be tested using the lowest 

water hardness water softener setting. 

2.6.3.2.1 For tests of the sensor heavy 

response, as defined in section 1.16 of this 

appendix: 

(A) For standard dishwashers, the test unit 

is to be loaded with a total of eight place 

settings plus six serving pieces as specified 

in section 2.7 of this appendix. Four of the 

eight place settings, except for the flatware, 

must be soiled according to ANSI/AHAM 

DW–1 (incorporated by reference, see 

§ 430.3) while the remaining place settings, 

serving pieces, and all flatware are not soiled. 

(B) For compact dishwashers, the test unit 

is to be loaded with four place settings plus 

six serving pieces as specified in section 2.7 

of this appendix. Two of the four place 

settings, except for the flatware, must be 

soiled according to ANSI/AHAM DW–1 

while the remaining place settings, serving 

pieces, and all flatware are not soiled. 

2.6.3.2.2 For tests of the sensor medium 

response, as defined in section 1.18 of this 

appendix: 

(A) For standard dishwashers, the test unit 

is to be loaded with a total of eight place 

settings plus six serving pieces as specified 

in section 2.7 of this appendix. Two of the 

eight place settings, except for the flatware 

must be soiled according to ANSI/AHAM 

DW–1 (incorporated by reference, see 

§ 430.3) while the remaining place settings, 

serving pieces, and all flatware are not soiled. 

(B) For compact dishwashers, the test unit 

is to be loaded with four place settings plus 

six serving pieces as specified in section 2.7 

of this appendix. One of the four place 

settings, except for the flatware, must be 

soiled according to ANSI/AHAM DW–1 

while the remaining place settings, serving 

pieces, and all flatware are not soiled. 

2.6.3.2.3 For tests of the sensor light 

response, as defined in section 1.17 of this 

appendix: 

(A) For standard dishwashers, the test unit 

is to be loaded with a total of eight place 

settings plus six serving pieces as specified 

in section 2.7 of this appendix. One of the 

eight place settings, except for the flatware, 

must be soiled with half of the soil load 

specified for a single place setting according 

to ANSI/AHAM DW–1 (incorporated by 

reference, see § 430.3) while the remaining 

place settings, serving pieces, and all flatware 

are not soiled. 

(B) For compact dishwashers, the test unit 

is to be loaded with four place settings plus 

six serving pieces as specified in section 2.7 

of this appendix. One of the four place 

settings, except for the flatware, must be 

soiled with half of the soil load specified for 

a single place setting according to the ANSI/ 

AHAM DW–1 while the remaining place 

settings, serving pieces, and all flatware are 

not soiled. 

2.7 Test load. 

2.7.1 Test load items. 


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Dishware/glassware/flatware item Primary source Description Primary No. Alternate source Alternate 

source No. 

Dinner Plate ...................... Corning Comcor®/ 

Corelle®.

10 inch Dinner Plate ....... 6003893 .......................................... ..........................

Bread and Butter Plate ..... Corning Comcor®/ 

Corelle®.

6.75 inch Bread & Butter 6003887 Arzberg ............................ 8500217100 

Fruit Bowl ......................... Corning Comcor®/ 

Corelle®.

10 oz. Dessert Bowl ........ 6003899 Arzberg ............................ 3820513100 

Cup ................................... Corning Comcor®/ 

Corelle®.

8 oz. Ceramic Cup .......... 6014162 Arzberg ............................ 3824732100 

Saucer .............................. Corning Comcor®/ 

Corelle®.

6 inch Saucer .................. 6010972 Arzberg ............................ 3824731100 

Serving Bowl .................... Corning Comcor®/ 

Corelle®.

1 qt. Serving Bowl ........... 6003911 .......................................... ..........................

Platter ............................... Corning Comcor®/ 

Corelle®.

9.5 inch Oval Platter ....... 6011655 .......................................... ..........................

Glass—Iced Tea ............... Libbey .............................. .......................................... 551 HT .......................................... ..........................

Flatware—Knife ................ Oneida®—Accent ............ .......................................... 2619KPVF WMF—Gastro 0800 ........ 12.0803.6047 

Flatware—Dinner Fork ..... Oneida®—Accent ............ .......................................... 2619FRSF WMF—Signum 1900 ....... 12.1905.6040 

Flatware—Salad Fork ....... Oneida®—Accent ............ .......................................... 2619FSLF WMF—Signum 1900 ....... 12.1964.6040 

Flatware—Teaspoon ........ Oneida®—Accent ............ .......................................... 2619STSF WMF—Signum 1900 ....... 12.1910.6040 

Flatware—Serving Fork .... Oneida®—Flight .............. .......................................... 2865FCM WMF—Signum 1900 ....... 12.1902.6040 

Flatware—Serving Spoon Oneida®—Accent ............ .......................................... 2619STBF WMF—Signum 1900 ....... 12.1904.6040 

2.7.2 Place setting. A place setting shall 

consist of one cup, one saucer, one dinner 

plate, one bread and butter plate, one fruit 

bowl, one iced tea glass, one dinner fork, one 

salad fork, one knife, and two teaspoons. 

2.7.3 Serving pieces. Serving pieces shall 

consist of two serving bowls, one platter, one 

serving fork, and two serving spoons. 

2.8 Testing requirements. Provisions in 

this appendix pertaining to dishwashers that 

operate with a nominal inlet temperature of 

50 °F or 120 °F apply only to water-heating 

dishwashers as defined in section 1.27 of this 

appendix. 

2.9 Preconditioning requirements. 

Precondition the dishwasher by establishing 

the testing conditions set forth in sections 2.1 

through 2.5 of this appendix. Set the 

dishwasher to the preconditioning cycle as 

defined in section 1.15 of this appendix, 

using the cycle setting for the test cycle 

according to section 2.6.1.2, 2.6.2.2, or 2.6.3.2 

of this appendix and without using a test 

load, and initiate the cycle. Measure the 

prewash fill water volume, Vpw, if any, and 

the main wash fill water volume, Vmw. 

2.10 Detergent. Use half the quantity of 

detergent specified according to ANSI/ 

AHAM DW–1 (incorporated by reference, see 

§ 430.3), using Cascade with the Grease 

Fighting Power of Dawn powder as the 

detergent formulation. Determine the amount 

of detergent (in grams) to be added to the 

prewash compartment (if provided) or 

elsewhere in the dishwasher (if 

recommended by the manufacturer) and the 

main wash compartment according to 

sections 2.10.1 and 2.10.2 of this appendix. 

2.10.1 Prewash Detergent Dosing. If the 

cycle setting for the test cycle includes 

prewash, determine the quantity of dry 

prewash detergent, Dpw, in grams (g) that 

results in 0.25 percent concentration by mass 

in the prewash fill water as: 

Dpw = Vpw×r×k×0.25/100 

Where, 

Vpw = the prewash fill volume of water in 

gallons, 

r = water density = 8.343 pounds (lb)/gallon 

for dishwashers to be tested at a nominal 

inlet water temperature of 50 °F (10 °C), 

8.250 lb/gallon for dishwashers to be 

tested at a nominal inlet water 

temperature of 120 °F (49 °C), and 8.205 

lb/gallon for dishwashers to be tested at 

a nominal inlet water temperature of 

140 °F (60 °C), and 

k = conversion factor from lb to g = 453.6 

g/lb. 

2.10.2 Main Wash Detergent Dosing. 

Determine the quantity of dry main wash 

detergent, Dmw, in grams (g) that results in 

0.25 percent concentration by mass in the 

main wash fill water as: 

Dmw = Vmw×r×k×0.25/100 

Where, 

Vmw = the main wash fill volume of water in 

gallons, and r, and k are defined in 

section 2.10.1 of this appendix. 

3. Instrumentation 

* * * * * 

3.5 Watt-hour meter. The watt-hour meter 

must have a resolution of .1 watt-hour or less 

and a maximum error of no more than 1 

percent of the measured value for any 

demand greater than 5 watts. 

* * * * * 

3.8 Standby mode and off mode watt 

meter. The watt meter used to measure 

standby mode and off mode power 

consumption shall meet the requirements 

specified in section 4.4 of IEC 62301 

(incorporated by reference, see § 430.3). 

4. Test Cycle and Measurements 

4.1 Water softener regeneration for watersoftening dishwashers. Perform a test cycle 

by establishing the testing conditions set 

forth in section 2 of this appendix, setting the 

dishwasher to the cycle type to be tested 

according to section 2.6.1.1, 2.6.2.1, or 2.6.3.1 

of this appendix, initiating the cycle, and 

allowing the cycle to proceed to completion. 

4.1.1 Measure the water consumption, 

VWS,i, expressed as the number of gallons of 

water delivered to the machine during the 

entire test cycle, using a water meter as 

specified in section 3.3 of this appendix, 

where i is the number of times the cycle has 

been conducted. Measure the machine 

electrical energy consumption, MWS,i, 

expressed as the number of kilowatt-hours of 

electricity consumed by the machine during 

the entire test cycle, using a watt-hour meter 

as specified in section 3.5 of this appendix. 

4.1.2 Repeat the cycle as specified in 

section 4.1.1 of this appendix. If: 

Then VWSmax is defined as the larger of 

VWS,1 and VWS,2, and VWSavg is defined as the 

smaller of VWS,1 and VWS,2; and MWSmax is 

defined as the machine electrical energy 

consumption for the cycle associated with 

VWSmax, and MWSavg is defined as the machine 

electrical energy consumption for the cycle 

associated with VWSavg; 

Otherwise, repeat the cycle as specified in 

section 4.1.1 of this appendix until: 

Then, 

VWSmax = VWS,i

MWSmax = MWS,i

and 


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Otherwise, if a maximum total of 10 cycles 

have been conducted and no cycle is 

determined to have water consumption that 

is 10 percent higher than the average water 

consumption of the other cycles, then the 

unit shall be deemed not a water-softening 

dishwasher. 

4.2 Active mode cycle. Perform a test 

cycle by establishing the testing conditions 

set forth in section 2 of this appendix, setting 

the dishwasher to the cycle type to be tested 

according to section 2.6.1.2, 2.6.2.2, or 2.6.3.2 

of this appendix, initiating the cycle, and 

allowing the cycle to proceed to completion. 

4.2.1 Machine electrical energy 

consumption. Measure the machine electrical 

energy consumption, M, expressed as the 

number of kilowatt-hours of electricity 

consumed by the machine during the entire 

test cycle, using a water supply temperature 

as set forth in section 2.3 of this appendix 

and using a watt-hour meter as specified in 

section 3.5 of this appendix. 

4.2.2 Fan electrical energy consumption. 

If the dishwasher is capable of operation in 

fan-only mode, measure the fan electrical 

energy consumption, MF, expressed as the 

number of kilowatt-hours of electricity 

consumed by the machine for the duration of 

the fan-only mode after the completion of 

each test cycle, using a watt-hour meter as 

specified in section 3.5 of this appendix. 

Record the time in minutes that the machine 

remains in fan-only mode, LF. 

4.2.3 Water consumption. Measure the 

water consumption, V, expressed as the 

number of gallons of water delivered to the 

machine during the entire test cycle, using a 

water meter specified in section 3.3 of this 

appendix. 

4.3 Simplified standby mode power. 

Connect the dishwasher to a standby 

wattmeter or a standby watt-hour meter as 

specified in sections 3.6 and 3.7, 

respectively, of this appendix. Select the 

conditions necessary to achieve operation in 

the simplified standby mode as defined in 

section 1.19 of this appendix. Monitor the 

power consumption but allow the 

dishwasher to stabilize for at least 5 minutes. 

Then monitor the power consumption for at 

least an additional 5 minutes. If the power 

level does not change by more than 5 percent 

from the maximum observed value during 

the later 5 minutes and if there is no cyclic 

or pulsing behavior of the load, the load can 

be considered stable. For stable operation, 

simplified standby mode power, Sm, can be 

recorded directly from the standby watt 

meter in watts or accumulated using the 

standby watt-hour meter over a period of at 

least 5 minutes. For unstable operation, the 

energy must be accumulated using the 

standby watt-hour meter over a period of at 

least 5 minutes and must capture the energy 

use over one or more complete cycles. 

Calculate the average simplified standby 

mode power, Sm, expressed in watts by 

dividing the accumulated energy 

consumption by the duration of the 

measurement period. 

4.4 Standby mode and off mode power. 

Connect the dishwasher to a standby mode 

and off mode watt meter as specified in 

section 3.8 of this appendix. Establish the 

testing conditions set forth in sections 2.1, 

2.2, and 2.5.2 of this appendix. For 

dishwashers that take some time to enter a 

stable state from a higher power state as 

discussed in section 5.1, note 1 of IEC 62301 

(incorporated by reference; see § 430.3), 

allow sufficient time for the dishwasher to 

reach the lower power state before 

proceeding with the test measurement. 

Follow the test procedure specified in section 

5.3.2 of IEC 62301 for testing in each possible 

mode as described in sections 4.4.1 and 4.4.2 

of this appendix. 

4.4.1 If the dishwasher has an inactive 

mode, as defined in section 1.10 of this 

appendix, measure and record the average 

inactive mode power of the dishwasher, PIA, 

in watts. 

4.4.2 If the dishwasher has an off mode, 

as defined in section 1.11 of this appendix, 

measure and record the average off mode 

power, POM, in watts. 

5. Calculation of Derived Results From Test 

Measurements 

5.1 Machine energy consumption. 

5.1.1 Machine energy consumption for 

non-soil-sensing electric dishwashers. Take 

the value recorded in section 4.2.1 of this 

appendix as the per-cycle machine electrical 

energy consumption. Express the value, M, in 

kilowatt-hours per cycle. 

5.1.2 Machine energy consumption for 

soil-sensing electric dishwashers. The 

machine energy consumption for the sensor 

normal cycle, M, is defined as: 

M = (Mhr×Fhr) + (Mmr×Fmr) + (Mlr×Flr) 

Where, 

Mhr = the value recorded in section 4.2.1 of 

this appendix for the test of the sensor 

heavy response, expressed in kilowatthours per cycle, 

Mmr = the value recorded in section 4.2.1 of 

this appendix for the test of the sensor 

medium response, expressed in kilowatthours per cycle, 

Mlr = the value recorded in section 4.2.1 of 

this appendix for the test of the sensor 

light response, expressed in kilowatthours per cycle, 

Fhr = the weighting factor based on consumer 

use of heavy response = 0.05, 

Fmr = the weighting factor based on consumer 

use of medium response = 0.33, and 

Flr = the weighting factor based on consumer 

use of light response = 0.62. 

5.1.3 Machine energy consumption 

during water softener regeneration for watersoftening dishwashers. The machine energy 

consumption for water softener regeneration, 

MWS, is defined as: 

MWS = (MWSmax ¥ MWSavg) × NWS/N 

Where, 

MWSmax = the value of the machine electrical 

energy consumption during a cycle 

including water softener regeneration 

recorded in section 4.1 of this appendix, 

expressed in kilowatt-hours, 

MWSavg = the value of the average machine 

electrical energy consumption during 

cycles not including water softener 

regeneration recorded in section 4.1 of 

this appendix, expressed in kilowatthours, 

NWS = the representative average number of 

water softener regeneration cycles per 

year = 36 cycles per year, and 

N = the representative average dishwasher 

use of 215 cycles per year. 

5.2 Fan-only mode energy consumption. 

5.2.1 Electrical energy consumption for 

fan-only mode for non-soil-sensing electric 

dishwashers. Take the value recorded in 

section 4.2.2 of this appendix as the per-cycle 

electrical energy consumption for fan-only 

mode. Express the value, EF, in kilowatthours per cycle. If the dishwasher is not 

capable of operation in fan-only mode, EF = 

0. 

5.2.2 Electrical energy consumption for 

fan-only mode for soil-sensing electric 

dishwashers. The fan-only mode electrical 

energy consumption, EF, for the sensor 

normal cycle is defined as: 

EF = (EFhr + EFmr + EFlr)/3 

Where, 

EFhr = the value recorded in section 4.2.2 of 

this appendix for the test of the sensor 

heavy response, expressed in kilowatthours per cycle, 

EFmr = the value recorded in section 4.2.2 of 

this appendix for the test of the sensor 

medium response, expressed in kilowatthours per cycle, 

EFlr = the value recorded in section 4.2.2 of 

this appendix for the test of the sensor 

light response, expressed in kilowatthours per cycle, 

If the dishwasher is not capable of 

operation in fan-only mode, EF = 0. 

5.3 Drying energy. 

5.3.1 Drying energy consumption for nonsoil-sensing electric dishwashers. Calculate 

the amount of energy consumed using the 

power-dry feature after the termination of the 

last rinse option of the normal cycle. Express 

the value, ED, in kilowatt-hours per cycle. 

5.3.2 Drying energy consumption for soilsensing electric dishwashers. The drying 

energy consumption, ED, for the sensor 

normal cycle is defined as: 

ED = (EDhr + EDmr + EDlr)/3 

Where, 

EDhr = energy consumed using the power-dry 

feature after the termination of the last 

rinse option of the sensor heavy 

response, expressed in kilowatt-hours 

per cycle, 

EDmr = energy consumed using the power-dry 

feature after the termination of the last 

rinse option of the sensor medium 

response, expressed in kilowatt-hours 

per cycle, 

EDlr = energy consumed using the power-dry 

feature after the termination of the last 

rinse option of the sensor light response, 

expressed in kilowatt-hours per cycle, 

5.4 Water consumption. 

5.4.1 Water consumption for non-soilsensing electric dishwashers using 

electrically heated, gas-heated, or oil-heated 

water. Take the value recorded in section 

4.2.3 of this appendix as the per-cycle water 


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consumption. Express the value, V, in gallons 

per cycle. 

5.4.2 Water consumption for soil-sensing 

electric dishwashers using electrically 

heated, gas-heated, or oil-heated water. The 

water consumption for the sensor normal 

cycle, V, is defined as: 

V = (Vhr × Fhr) + (Vmr × Fmr) + (Vlr × Flr) 

Where, 

Vhr = the value recorded in section 4.2.3 of 

this appendix for the test of the sensor 

heavy response, expressed in gallons per 

cycle, 

Vmr = the value recorded in section 4.2.3 of 

this appendix for the test of the sensor 

medium response, expressed in gallons 

per cycle, 

Vlr = the value recorded in section 4.2.3 of 

this appendix for the test of the sensor 

light response, expressed in gallons per 

cycle, 

Fhr = the weighting factor based on consumer 

use of heavy response = 0.05, 

Fmr = the weighting factor based on consumer 

use of medium response = 0.33, and 

Flr = the weighting factor based on consumer 

use of light response = 0.62. 

5.4.3 Water consumption during water 

softener regeneration for water-softening 

dishwashers using electrically heated, gasheated, or oil-heated water. The water 

consumption for water softener regeneration, 

VWS, is defined as: 

VWS = (VWSmax¥VWSavg) × NWS/N 

Where, 

VWSmax = the value of the total water 

consumption during a cycle including 

water softener regeneration recorded in 

section 4.1 of this appendix, expressed 

in gallons per cycle, 

VWSavg = the value of the average total water 

consumption during cycles not including 

water softener regeneration recorded in 

section 4.1 of this appendix, expressed 

in gallons per cycle, 

NWS = the representative average number of 

water softener regeneration cycles per 

year = 36 cycles per year, and 

N = the representative average dishwasher 

use of 215 cycles per year. 

5.5 Water energy consumption for nonsoil-sensing or soil-sensing dishwashers using 

electrically heated water. 

5.5.1 Dishwashers that operate with a 

nominal 140 °F inlet water temperature, only. 

5.5.1.1 Calculate the water energy 

consumption, W, expressed in kilowatt-hours 

per cycle and defined as: 

W = V × T × K 

Where, 

V = water consumption in gallons per 

cycle, as determined in section 5.4.1 of this 

appendix for non-soil-sensing dishwashers 

and section 5.4.2 of this appendix for soilsensing dishwashers, 

T = nominal water heater temperature rise 

= 90 °F, and 

K = specific heat of water in kilowatt-hours 

per gallon per degree Fahrenheit = 0.0024. 

5.5.1.2 For water-softening dishwashers, 

calculate the water softener regeneration 

water energy consumption, WWS, expressed 

in kilowatt-hours per cycle and defined as: 

WWS = VWS × T × K 

Where, 

VWS = water consumption during water 

softener regeneration in gallons per cycle 

which includes regeneration, as 

determined in section 5.4.3 of this 

appendix, 

T = nominal water heater temperature rise = 

90 °F, and 

K = specific heat of water in kilowatt-hours 

per gallon per degree Fahrenheit = 

0.0024. 

5.5.2 Dishwashers that operate with a 

nominal inlet water temperature of 120 °F. 

5.5.2.1 kilowatt-hours per cycle and 

defined as: 

W = V × T × K 

Where, 

V = water consumption in gallons per 

cycle, as determined in section 5.4.1 of this 

appendix for non-soil-sensing dishwashers 

and section 5.4.2 of this appendix for soilsensing dishwashers, 

T = nominal water heater temperature rise 

= 70 °F, and 

K = specific heat of water in kilowatt-hours 

per gallon per degree Fahrenheit = 0.0024, 

5.5.2.2 For water-softening dishwashers, 

calculate the water softener regeneration 

water energy consumption, WWS, expressed 

in kilowatt-hours per cycle and defined as: 

WWS = VWS × T × K 

Where, 

VWS = water consumption during water 

softener regeneration in gallons per cycle 

which includes regeneration, as 

determined in section 5.4.3 of this 

appendix, 

T = nominal water heater temperature rise = 

70 °F, and 

K = specific heat of water in kilowatt-hours 

per gallon per degree Fahrenheit = 

0.0024. 

5.6 Water energy consumption per cycle 

using gas-heated or oil-heated water. 

5.6.1 Dishwashers that operate with a 

nominal 140 °F inlet water temperature, only. 

5.6.1.1 Calculate the water energy 

consumption using gas-heated or oil-heated 

water, Wg, expressed in Btu’s per cycle and 

defined as: 

Wg = V × T × C/e 

Where, 

V = water consumption in gallons per cycle, 

as determined in section 5.4.1 of this 

appendix for non-soil-sensing 

dishwashers and section 5.4.2 of this 

appendix for soil-sensing dishwashers, 

T = nominal water heater temperature rise = 

90 °F, 

C = specific heat of water in Btu’s per gallon 

per degree Fahrenheit = 8.2, and 

e = nominal gas or oil water heater recovery 

efficiency = 0.75, 

5.6.1.2 For water-softening dishwashers, 

calculate the water softener regeneration 

water energy consumption, WWSg, expressed 

in kilowatt-hours per cycle and defined as: 

WWSg = VWS × T × C/e 

Where, 

VWS = water consumption during water 

softener regeneration in gallons per cycle 

which includes regeneration, as 

determined in section 5.4.3 of this 

appendix, 

T = nominal water heater temperature rise = 

90 °F, 

C = specific heat of water in Btu’s per gallon 

per degree Fahrenheit = 8.2, and 

e = nominal gas or oil water heater recovery 

efficiency = 0.75. 

5.6.2 Dishwashers that operate with a 

nominal 120 °F inlet water temperature, only. 

5.6.2.1 Calculate the water energy 

consumption using gas-heated or oil-heated 

water, Wg, expressed in Btu’s per cycle and 

defined as: 

Wg = V × T × C/e 

Where, 

V = water consumption in gallons per cycle, 

as determined in section 5.4.1 of this 

appendix for non-soil-sensing 

dishwashers and section 5.4.2 of this 

appendix for soil-sensing dishwashers, 

T = nominal water heater temperature rise = 

70 °F, 

C = specific heat of water in Btu’s per gallon 

per degree Fahrenheit = 8.2, and 

e = nominal gas or oil water heater recovery 

efficiency = 0.75. 

5.6.2.2 For water-softening dishwashers, 

calculate the water softener regeneration 

water energy consumption, WWSg, expressed 

in kilowatt-hours per cycle and defined as: 

WWSg = VWS × T × C/e 

Where, 

VWS = water consumption during water 

softener regeneration in gallons per cycle 

which includes regeneration, as 

determined in section 5.4.3 of this 

appendix, 

T = nominal water heater temperature rise = 

70 °F, 

C = specific heat of water in Btu’s per gallon 

per degree Fahrenheit = 8.2, and 

e = nominal gas or oil water heater recovery 

efficiency = 0.75. 

5.7 Annual simplified standby energy 

consumption. Calculate the estimated annual 

simplified standby energy consumption. First 

determine the number of standby hours per 

year, Hs, defined as: 

Hs = H—(N × L) 

Where, 

H = the total number of hours per year = 8766 

hours per year, 

N = the representative average dishwasher 

use of 215 cycles per year, and 

L = the average of the duration of the normal 

cycle and truncated normal cycle, for 

non-soil-sensing dishwashers with a 

truncated normal cycle; the duration of 

the normal cycle, for non-soil-sensing 

dishwashers without a truncated normal 

cycle; the average duration of the sensor 

light response, truncated sensor light 

response, sensor medium response, 

truncated sensor medium response, 

sensor heavy response, and truncated 

sensor heavy response, for soil-sensing 

dishwashers with a truncated cycle 

option; the average duration of the 

sensor light response, sensor medium 

response, and sensor heavy response, for 

soil-sensing dishwashers without a 

truncated cycle option. 


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Then calculate the estimated annual 

simplified standby power use, S, expressed 

in kilowatt-hours per year and defined as: 

S = Sm×((Hs)/1000) 

Where, 

Sm = the simplified standby mode power in 

watts as determined in section 4.3 of this 

appendix. 

5.8 Annual combined low-power mode 

energy consumption. Calculate the annual 

combined low-power mode energy 

consumption for dishwashers, ETLP, 

expressed in kilowatt-hours per year, 

according to the following: 

ETLP = [(PIA × SIA) + (POM × SOM)] × K 

Where: 

PIA = dishwasher inactive mode power, in 

watts, as measured in section 4.4.1 of 

this appendix for dishwashers capable of 

operating in inactive mode; otherwise, 

PIA=0, 

POM = dishwasher off mode power, in watts, 

as measured in section 4.4.2 of this 

appendix for dishwashers capable of 

operating in off mode; otherwise, POM=0, 

SIA = annual hours in inactive mode as 

defined as SLP if no off mode is possible, 

[SLP/2] if both inactive mode and off 

mode are possible, and 0 if no inactive 

mode is possible, 

SOM = annual hours in off mode as defined 

as SLP if no inactive mode is possible, 

[SLP/2] if both inactive mode and off 

mode are possible, and 0 if no off mode 

is possible, 

SLP = combined low-power annual hours for 

cycle finished, off, and inactive mode as 

defined as [H—(N×(L + LF))] for 

dishwashers capable of operating in fanonly mode; otherwise, SLP=8,465, 

H = the total number of hours per year = 8766 

hours per year, 

N = the representative average dishwasher 

use of 215 cycles per year, 

L = the average of the duration of the normal 

cycle and truncated normal cycle, for 

non-soil-sensing dishwashers with a 

truncated normal cycle; the duration of 

the normal cycle, for non-soil-sensing 

dishwashers without a truncated normal 

cycle; the average duration of the sensor 

light response, truncated sensor light 

response, sensor medium response, 

truncated sensor medium response, 

sensor heavy response, and truncated 

sensor heavy response, for soil-sensing 

dishwashers with a truncated cycle 

option; the average duration of the 

sensor light response, sensor medium 

response, and sensor heavy response, for 

soil-sensing dishwashers without a 

truncated cycle option, 

LF = the duration of the fan-only mode for the 

normal cycle for non-soil-sensing 

dishwashers; the average duration of the 

fan-only mode for sensor light response, 

sensor medium response, and sensor 

heavy response for soil-sensing 

dishwashers, and 

K = 0.001 kWh/Wh conversion factor for 

watt-hours to kilowatt-hours. 

Appendix I—[Amended] 

5. Appendix I to subpart B of part 430 

is amended: 

a. By revising the Note after the 

appendix heading; 

b. By revising section 1. Definitions; 

c. In section 2. Test Conditions, by: 

1. Revising sections 2.1, 2.1.1, 2.1.2, 

2.1.3, 2.2.1.2, 2.5.2, 2.6, 2.9.1.1, 2.9.1.3, 

and 2.9.2.1; 

2. Removing section 2.9.2.2; 

d. By revising section 3. Test Methods 

and Measurements: And 

e. By revising section 4. Calculation of 

Derived Results From Test 

Measurements 

The additions and revisions read as 

follows: 

Appendix I to Subpart B of Part 430— 

Uniform Test Method for Measuring the 

Energy Consumption of Conventional 

Ranges, Conventional Cooking Tops, 

Conventional Ovens, and Microwave 

Ovens 

Note: The procedures and calculations in 

this Appendix I need not be performed to 

determine compliance with energy 

conservation standards for conventional 

ranges, conventional cooking tops, 

conventional ovens, and microwave ovens at 

this time. However, any representation 

related to standby mode and off mode energy 

consumption of conventional ranges, 

conventional cooking tops, and conventional 

ovens made after (date 180 days after date of 

publication of the test procedure final rule in 

the Federal Register) and of microwave 

ovens made after September 6, 2011 must be 

based upon results generated under this test 

procedure, consistent with the requirements 

of 42 U.S.C. 6293(c)(2). Upon the compliance 

date of any energy conservation standard that 

incorporates standby mode and off mode 

energy consumption, compliance with the 

applicable provisions of this test procedure 

will also be required. Future revisions may 

add relevant provisions for measuring active 

mode in microwave ovens. 

1. Definitions 

1.1 Active mode means a mode in which 

the product is connected to a mains power 

source, has been activated, and is performing 

the main functions of producing heat by 

means of a gas flame, electric resistance 

heating, or microwave energy, or circulating 

air internally or externally to the cooking 

product. Delay start mode is a one-off, userinitiated, short-duration function that is 

associated with an active mode. 

1.2 Built-in means the product is 

supported by surrounding cabinetry, walls, 

or other similar structures. 

1.3 Combined low-power mode means the 

aggregate of available modes other than 

active mode. 

1.4 Cycle finished mode means a standby 

mode in which a conventional cooking top, 

conventional oven, or conventional range 

provides continuous status display following 

operation in active mode. 

1.5 Drop-in means the product is 

supported by horizontal surface cabinetry. 

1.6 Fan-only mode means an active mode 

in which a fan circulates air internally or 

externally to the cooking product for a finite 

period of time after the end of the heating 

function, as indicated to the consumer. 

1.7 Forced convection means a mode of 

conventional oven operation in which a fan 

is used to circulate the heated air within the 

oven compartment during cooking. 

1.8 Freestanding means the product is not 

supported by surrounding cabinetry, walls, 

or other similar structures. 

1.9 IEC 62301 First Edition means the test 

standard published by the International 

Electrotechnical Commission, titled 

‘‘Household electrical appliances— 

Measurement of standby power,’’ Publication 

62301 (First Edition 2005–06) (incorporated 

by reference; see § 430.3). 

1.10 IEC 62301 Second Edition means the 

test standard published by the International 

Electrotechnical Commission, titled 

‘‘Household electrical appliances— 

Measurement of standby power,’’ Publication 

62301 (Edition 2.0 2011–01) (incorporated by 

reference; see § 430.3). 

1.11 Inactive mode means a standby 

mode that facilitates the activation of active 

mode by remote switch (including remote 

control), internal sensor, or timer, or that 

provides continuous status display. 

1.12 Normal nonoperating temperature 

means the temperature of all areas of an 

appliance to be tested are within 5 °F (2.8 °C) 

of the temperature that the identical areas of 

the same basic model of the appliance would 

attain if it remained in the test room for 24 

hours while not operating with all oven 

doors closed. 

1.13 Off mode means a mode in which 

the product is connected to a mains power 

source and is not providing any active mode 

or standby mode function, and where the 

mode may persist for an indefinite time. An 

indicator that only shows the user that the 

product is in the off position is included 

within the classification of an off mode. 

1.14 Primary energy consumption means 

either the electrical energy consumption of a 

conventional electric oven or the gas energy 

consumption of a conventional gas oven. 

1.15 Secondary energy consumption 

means any electrical energy consumption of 

a conventional gas oven. 

1.16 Standard cubic foot (L) of gas means 

that quantity of gas that occupies 1 cubic foot 

(L) when saturated with water vapor at a 

temperature of 60 °F (15.6 °C) and a pressure 

of 30 inches of mercury (101.6 kPa) (density 

of mercury equals 13.595 grams per cubic 

centimeter). 

1.17 Standby mode means any modes 

where the product is connected to a mains 

power source and offers one or more of the 

following user-oriented or protective 

functions which may persist for an indefinite 

time: (a) To facilitate the activation of other 

modes (including activation or deactivation 

of active mode) by remote switch (including 

remote control), internal sensor, or timer; 

(b) continuous functions, including 

information or status displays (including 

clocks) or sensor-based functions. A timer is 

a continuous clock function (which may or 

may not be associated with a display) that 

provides regular scheduled tasks (e.g., 

switching) and that operates on a continuous 

basis. 


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1.18 Thermocouple means a device 

consisting of two dissimilar metals which are 

joined together and, with their associated 

wires, are used to measure temperature by 

means of electromotive force. 

1.19 Symbol usage. The following 

identity relationships are provided to help 

clarify the symbology used throughout this 

procedure. 

A—Number of Hours in a Year 

C—Specific Heat 

E—Energy Consumed 

Eff—Cooking Efficiency 

H—Heating Value of Gas 

K—Conversion for Watt-hours to Kilowatthours 

Ke—3.412 Btu/Wh, Conversion for Watthours to Btu’s 

M—Mass 

n—Number of Units 

O—Annual Useful Cooking Energy Output 

P—Power 

Q—Gas Flow Rate 

R—Energy Factor, Ratio of Useful Cooking 

Energy Output to Total Energy Input 

S—Number of Self-Cleaning Operations per 

Year 

T—Temperature 

t—Time 

V—Volume of Gas Consumed 

W—Weight of Test Block 

2. Test Conditions 

2.1 Installation. A free standing kitchen 

range shall be installed with the back directly 

against, or as near as possible to, a vertical 

wall which extends at least 1 foot above and 

on either side of the appliance. There shall 

be no side walls. A drop-in, built-in, or wallmounted appliance shall be installed in an 

enclosure in accordance with the 

manufacturer’s instructions. These 

appliances are to be completely assembled 

with all handles, knobs, guards, and the like 

mounted in place. Any electric resistance 

heaters, gas burners, baking racks, and baffles 

shall be in place in accordance with the 

manufacturer’s instructions; however, broiler 

pans are to be removed from the oven’s 

baking compartment. 

2.1.1 Conventional electric ranges, ovens, 

and cooking tops. These products shall be 

connected to an electrical supply circuit with 

voltage as specified in section 2.2.1 of this 

appendix with a watt-hour meter installed in 

the circuit. The watt-hour meter shall be as 

described in section 2.9.1.1 of this appendix. 

For standby mode and off mode testing, these 

products shall also be installed in accordance 

with section 5.2 of IEC 62301 (Second 

Edition) (incorporated by reference; see 

§ 430.3), disregarding the provisions 

regarding batteries and the determination, 

classification, and testing of relevant modes. 

2.1.2 Conventional gas ranges, ovens, and 

cooking tops. These products shall be 

connected to a gas supply line with a gas 

meter installed between the supply line and 

the appliance being tested, according to 

manufacturer’s specifications. The gas meter 

shall be as described in section 2.9.2 of this 

appendix. Conventional gas ranges, ovens, 

and cooking tops with electrical ignition 

devices or other electrical components shall 

be connected to an electrical supply circuit 

of nameplate voltage with a watt-hour meter 

installed in the circuit. The watt-hour meter 

shall be as described in section 2.9.1.1 of this 

appendix. For standby mode and off mode 

testing, these products shall also be installed 

in accordance with section 5.2 of IEC 62301 

(Second Edition) (incorporated by reference; 

see § 430.3), disregarding the provisions 

regarding batteries and the determination, 

classification, and testing of relevant modes. 

2.1.3 Microwave ovens. Install the 

microwave oven in accordance with the 

manufacturer’s instructions and connect to 

an electrical supply circuit with voltage as 

specified in section 2.2.1 of this appendix. 

The microwave oven shall also be installed 

in accordance with section 5.2 of IEC 62301 

(First Edition) (incorporated by reference; see 

§ 430.3). A watt meter shall be installed in 

the circuit and shall be as described in 

section 2.9.1.3 of this appendix. 

* * * * * 

2.2.1.2 Supply voltage waveform. For 

conventional range, conventional cooking 

top, and conventional oven standby mode 

and off mode testing, maintain the electrical 

supply voltage waveform indicated in section 

4.3.2 of IEC 62301 (Second Edition) 

(incorporated by reference; see § 430.3). For 

microwave oven standby mode and off mode 

testing, maintain the electrical supply voltage 

waveform indicated in section 4.4 of IEC 

62301 (First Edition) (incorporated by 

reference; see § 430.3). 

* * * * * 

2.5.2 Standby mode and off mode 

ambient temperature. For conventional 

range, conventional cooking top, and 

conventional oven standby mode and off 

mode testing, maintain room ambient air 

temperature conditions as specified in 

section 4.2 of IEC 62301 (Second Edition) 

(incorporated by reference; see § 430.3). For 

microwave oven standby mode and off mode 

testing, maintain room ambient air 

temperature conditions as specified in 

section 4.2 of IEC 62301 (First Edition) 

(incorporated by reference; see § 430.3). 

2.6 Normal nonoperating temperature. 

All areas of the appliance to be tested shall 

attain the normal nonoperating temperature, 

as defined in section 1.12 of this appendix, 

before any testing begins. The equipment for 

measuring the applicable normal 

nonoperating temperature shall be as 

described in sections 2.9.3.1, 2.9.3.2, 2.9.3.3, 

and 2.9.3.4 of this appendix, as applicable. 

* * * * * 

2.9.1.1 Watt-hour meter. The watt-hour 

meter for measuring the electrical energy 

consumption of conventional ovens and 

cooking tops shall have a resolution of 1 

watt-hour (3.6 kJ) or less and a maximum 

error no greater than 1.5 percent of the 

measured value for any demand greater than 

5 watts. The watt-hour meter for measuring 

the energy consumption of microwave ovens 

shall have resolution of 0.1 watt-hour (0.36 

kJ) or less and a maximum error no greater 

than 1.5 percent of the measured value. 

* * * * * 

2.9.1.3 Standby mode and off mode watt 

meter. The watt meter used to measure 

conventional range, conventional cooking 

top, and conventional oven standby mode 

and off mode power consumption shall have 

a resolution as specified in section 4.4 of IEC 

62301 (Second Edition) (incorporated by 

reference, see § 430.3). The watt meter used 

to measure microwave oven standby mode 

and off mode power consumption shall have 

a resolution as specified in section 4.5 of IEC 

62301 (First Edition) (incorporated by 

reference, see § 430.3), and shall also be able 

to record a ‘‘true’’ average power as specified 

in section 5.3.2(a) of IEC 62301 (First 

Edition). 

2.9.2 Gas Measurements. 

2.9.2.1 Positive displacement meters. The 

gas meter to be used for measuring the gas 

consumed by the gas burners of the oven or 

cooking top shall have a resolution of 0.01 

cubic foot (0.28 L) or less and a maximum 

error no greater than 1 percent of the 

measured valued for any demand greater 

than 2.2 cubic feet per hour (62.3 L/h). 

3. Test Methods and Measurements 

3.1 Test methods. 

3.1.1 Conventional oven. Perform a test 

by establishing the testing conditions set 

forth in section 2, Test Conditions, of this 

appendix and turn off the gas flow to the 

conventional cooking top, if so equipped. 

Before beginning the test, the conventional 

oven shall be at its normal nonoperating 

temperature as defined in section 1.12 of this 

appendix and described in section 2.6 of this 

appendix. Set the conventional oven test 

block W1 approximately in the center of the 

usable baking space. If there is a selector 

switch for selecting the mode of operation of 

the oven, set it for normal baking. If an oven 

permits baking by either forced convection 

by using a fan, or without forced convection, 

the oven is to be tested in each of those two 

modes. The oven shall remain on for one 

complete thermostat ‘‘cut-off/cut-on’’ of the 

electrical resistance heaters or gas burners 

after the test block temperature has increased 

234 °F (130 °C) above its initial temperature. 

3.1.1.1 Self-cleaning operation of a 

conventional oven. Establish the test 

conditions set forth in section 2, Test 

Conditions, of this appendix. Turn off the gas 

flow to the conventional cooking top. The 

temperature of the conventional oven shall 

be its normal nonoperating temperature as 

defined in section 1.12 of this appendix and 

described in section 2.6 of this appendix. 

Then set the conventional oven’s selfcleaning process in accordance with the 

manufacturer’s instructions. If the selfcleaning process is adjustable, use the 

average time recommended by the 

manufacturer for a moderately soiled oven. 

3.1.1.2 Conventional oven standby mode 

and off mode power. Establish the standby 

mode and off mode testing conditions set 

forth in section 2, Test Conditions, of this 

appendix. For conventional ovens that take 

some time to enter a stable state from a 

higher power state as discussed in section 

5.1, Note 1 of IEC 62301 (Second Edition) 

(incorporated by reference; see § 430.3), 

allow sufficient time for the conventional 

oven to reach the lower power state before 

proceeding with the test measurement. 

Follow the test procedure as specified in 

section 5.3.2 of IEC 62301 (Second Edition) 

for testing in each possible mode as 

described in sections 3.1.1.2.1 and 3.1.1.2.2 


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of this appendix. For units in which power 

varies as a function of displayed time in 

standby mode, either: (1) Set the clock time 

to 3:23 at the end of the stabilization period 

specified in section 5.3 of IEC 62301 (First 

Edition) (incorporated by reference; see 

§ 430.3), and use the average power approach 

described in section 5.3.2(a) of IEC 62301 

(First Edition), but with a single test period 

of 10 minutes +0/¥2 sec after an additional 

stabilization period until the clock time 

reaches 3:33; or (2) at any starting clock time, 

allow a stabilization period as described in 

section 5.3 of IEC 62301 (First Edition), and 

use the average power approach described in 

section 5.3.2(a) of IEC 62301 (First Edition), 

but with a single test period of 12 hours +0/ 

¥30 sec. Testing may be conducted using 

either a 12-hour test, a 10-minute test, or both 

tests; however, if a manufacturer elects to 

perform both tests on a unit, the 

manufacturer may only use the results from 

one of the test (i.e., the 12-hour test or the 

10-minute test) as the test results for that 

unit. Results of the 10-minute test that are 

within ±2 percent of the 12-hour test are 

deemed to be representative of average 

energy use. 

3.1.1.2.1 If the conventional oven has an 

inactive mode, as defined in section 1.11 of 

this appendix, measure and record the 

average inactive mode power of the 

conventional oven, PIA, in watts. 

3.1.1.2.2 If the conventional oven has an 

off mode, as defined in section 1.13 of this 

appendix, measure and record the average off 

mode power of the conventional oven, POM, 

in watts. 

3.1.2 Conventional cooking top. Establish 

the test conditions set forth in section 2, Test 

Conditions, of this appendix. Turn off the gas 

flow to the conventional oven(s), if so 

equipped. The temperature of the 

conventional cooking top shall be its normal 

nonoperating temperature as defined in 

section 1.12 of this appendix and described 

in section 2.6 of this appendix. Set the test 

block in the center of the surface unit under 

test. The small test block, W2, shall be used 

on electric surface units of 7 inches (178 mm) 

or less in diameter. The large test block, W3, 

shall be used on electric surface units over 

7 inches (178 mm) in diameter and on all gas 

surface units. Turn on the surface unit under 

test and set its energy input rate to the 

maximum setting. When the test block 

reaches 144 °F (80 °C) above its initial test 

block temperature, immediately reduce the 

energy input rate to 25±5 percent of the 

maximum energy input rate. After 15±0.1 

minutes at the reduced energy setting, turn 

off the surface unit under test. 

3.1.2.1 Conventional cooking top standby 

mode and off mode power. Establish the 

standby mode and off mode testing 

conditions set forth in section 2, Test 

Conditions, of this appendix. For 

conventional cooktops that take some time to 

enter a stable state from a higher power state 

as discussed in section 5.1, Note 1 of IEC 

62301 (Second Edition) (incorporated by 

reference; see § 430.3), allow sufficient time 

for the conventional cooking top to reach the 

lower power state before proceeding with the 

test measurement. Follow the test procedure 

as specified in section 5.3.2 of IEC 62301 

(Second Edition) for testing in each possible 

mode as described in sections 3.1.2.1.1 and 

3.1.2.1.2 of this appendix. For units in which 

power varies as a function of displayed time 

in standby mode, either: (1) set the clock time 

to 3:23 at the end of the stabilization period 

specified in section 5.3 of IEC 62301 (First 

Edition) (incorporated by reference; see 

§ 430.3), and use the average power approach 

described in section 5.3.2(a) of IEC 62301 

(First Edition), but with a single test period 

of 10 minutes +0/¥2 sec after an additional 

stabilization period until the clock time 

reaches 3:33; or (2) at any starting clock time, 

allow a stabilization period as described in 

section 5.3 of IEC 62301 (First Edition), and 

use the average power approach described in 

section 5.3.2(a) of IEC 62301 (First Edition), 

but with a single test period of 12 hours +0/ 

¥30 sec. Testing may be conducted using 

either a 12-hour test, a 10-minute test, or both 

tests; however, if a manufacturer elects to 

perform both tests on a unit, the 

manufacturer may only use the results from 

one of the tests (i.e., the 12-hour test or the 

10-minute test) as the test results for that 

unit. Results of the 10-minute test that are 

within ±2 percent of the 12-hour test are 

deemed to be representative of average 

energy use. 

3.1.2.1.1 If the conventional cooking top 

has an inactive mode, as defined in section 

1.11 of this appendix, measure and record 

the average inactive mode power of the 

conventional cooking top, PIA, in watts. 

3.1.2.1.2 If the conventional cooking top 

has an off mode, as defined in section 1.13 

of this appendix, measure and record the 

average off mode power of the conventional 

cooking top, POM, in watts. 

3.1.3 Conventional range standby mode 

and off mode power. Establish the standby 

mode and off mode testing conditions set 

forth in section 2, Test Conditions, of this 

appendix. For conventional ranges that take 

some time to enter a stable state from a 

higher power state as discussed in section 

5.1, Note 1 of IEC 62301 (Second Edition) 

(incorporated by reference; see § 430.3), 

allow sufficient time for the conventional 

range to reach the lower power state before 

proceeding with the test measurement. 

Follow the test procedure as specified in 

section 5.3.2 of IEC 62301 (Second Edition) 

for testing in each possible mode as 

described in sections 3.1.3.1 and 3.1.3.2 of 

this appendix. For units in which power 

varies as a function of displayed time in 

standby mode, either: (1) set the clock time 

to 3:23 at the end of the stabilization period 

specified in section 5.3 of IEC 62301 (First 

Edition) (incorporated by reference; see 

§ 430.3), and use the average power approach 

described in section 5.3.2(a) of IEC 62301 

(First Edition), but with a single test period 

of 10 minutes +0/-2 sec after an additional 

stabilization period until the clock time 

reaches 3:33; or (2) at any starting clock time, 

allow a stabilization period as described in 

section 5.3 of IEC 62301 (First Edition), and 

use the average power approach described in 

section 5.3.2(a) of IEC 62301 (First Edition), 

but with a single test period of 12 hours +0/ 

-30 sec. Testing may be conducted using 

either a 12-hour test, a 10-minute test, or both 

tests; however, if a manufacturer elects to 

perform both tests on a unit, the 

manufacturer may only use the results from 

one of the test (i.e., the 12-hour test or the 

10-minute test) as the test results for that 

unit. Results of the 10-minute test that are 

within ±2 percent of the 12-hour test are 

deemed to be representative of average 

energy use. 

3.1.3.1 If the conventional range has an 

inactive mode, as defined in section 1.11 of 

this appendix, measure and record the 

average inactive mode power of the 

conventional range, PIA, in watts. 

3.1.3.2 If the conventional range has an 

off mode, as defined in section 1.13 of this 

appendix, measure and record the average off 

mode power of the conventional range, POM, 

in watts. 

3.1.4 Microwave oven. 

3.1.4.1 Microwave oven test standby 

mode and off mode power. Establish the 

testing conditions set forth in section 2, Test 

Conditions, of this appendix. For microwave 

ovens that drop from a higher power state to 

a lower power state as discussed in section 

5.1, Note 1 of IEC 62301 (First Edition) 

(incorporated by reference; see § 430.3), 

allow sufficient time for the microwave oven 

to reach the lower power state before 

proceeding with the test measurement. 

Follow the test procedure as specified in 

section 5.3 of IEC 62301 (First Edition). For 

units in which power varies as a function of 

displayed time in standby mode, set the 

clock time to 3:23 and use the average power 

approach described in section 5.3.2(a) of IEC 

62301 (First Edition), but with a single test 

period of 10 minutes +0/-2 sec after an 

additional stabilization period until the clock 

time reaches 3:33. If a microwave oven is 

capable of operation in either standby mode 

or off mode, as defined in sections 1.17 or 

1.13 of this appendix, respectively, or both, 

test the microwave oven in each mode in 

which it can operate. 

3.2 Test measurements. 

3.2.1 Conventional oven test energy 

consumption. If the oven thermostat controls 

the oven temperature without cycling on and 

off, measure the energy consumed, EO, when 

the temperature of the block reaches TO (TO

is 234 °F (130 °C) above the initial block 

temperature, TI). If the oven thermostat 

operates by cycling on and off, make the 

following series of measurements: Measure 

the block temperature, TA, and the energy 

consumed, EA, or volume of gas consumed, 

VA, at the end of the last ‘‘ON’’ period of the 

conventional oven before the block reaches 

TO. Measure the block temperature, TB, and 

the energy consumed, EB, or volume of gas 

consumed, VB, at the beginning of the next 

‘‘ON’’ period. Measure the block temperature, 

TC, and the energy consumed, EC, or volume 

of gas consumed, VC, at the end of that ‘‘ON’’ 

period. Measure the block temperature, TD, 

and the energy consumed, ED, or volume of 

gas consumed, VD, at the beginning of the 

following ‘‘ON’’ period. Energy 

measurements for EO, EA, EB, EC, and ED

should be expressed in watt-hours (kJ) for 

conventional electric ovens, and volume 

measurements for VA, VB, VC, and VD should 

be expressed in standard cubic feet (L) of gas 

for conventional gas ovens. For a gas oven, 

measure in watt-hours (kJ) any electrical 


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energy, EIO, consumed by an ignition device 

or other electrical components required for 

the operation of a conventional gas oven 

while heating the test block to TO. 

3.2.1.1 Conventional oven average test 

energy consumption. If the conventional 

oven permits baking by either forced 

convection or without forced convection and 

the oven thermostat does not cycle on and 

off, measure the energy consumed with the 

forced convection mode, (EO)1, and without 

the forced convection mode, (EO)2, when the 

temperature of the block reaches TO (TO is 

234 °F (130 °C) above the initial block 

temperature, TI). If the conventional oven 

permits baking by either forced convection or 

without forced convection and the oven 

thermostat operates by cycling on and off, 

make the following series of measurements 

with and without the forced convection 

mode: Measure the block temperature, TA, 

and the energy consumed, EA, or volume of 

gas consumed, VA, at the end of the last 

‘‘ON’’ period of the conventional oven before 

the block reaches TO. Measure the block 

temperature, TB, and the energy consumed, 

EB, or volume of gas consumed, VB, at the 

beginning of the next ‘‘ON’’ period. Measure 

the block temperature, TC, and the energy 

consumed, EC, or volume of gas consumed, 

VC, at the end of that ‘‘ON’’ period. Measure 

the block temperature, TD, and the energy 

consumed, ED, or volume of gas consumed, 

VD, at the beginning of the following ‘‘ON’’ 

period. Energy measurements for EO, EA, EB, 

EC, and ED should be expressed in watt-hours 

(kJ) for conventional electric ovens, and 

volume measurements for VA, VB, VC, and VD

should be expressed in standard cubic feet 

(L) of gas for conventional gas ovens. For a 

gas oven that can be operated with or without 

forced convection, measure in watt-hours (kJ) 

any electrical energy consumed by an 

ignition device or other electrical 

components required for the operation of a 

conventional gas oven while heating the test 

block to TO using the forced convection 

mode, (EIO)1, and without using the forced 

convection mode, (EIO)2. 

3.2.1.2 Conventional oven fan-only mode 

energy consumption. If the conventional 

oven is capable of operation in fan-only 

mode, measure the fan-only mode energy 

consumption, EOF, expressed in watt-hours 

(kJ) of electricity consumed by the 

conventional oven for the duration of the fanonly mode immediately after the completion 

of the measurement of test energy 

consumption set forth in section 3.2.1 of this 

appendix, using a watt-hour meter as 

specified in section 2.9.1.1 of this appendix. 

Record the time in minutes that the 

conventional oven remains in fan-only mode, 

tOF

3.2.1.3 Energy consumption of selfcleaning operation. Measure the energy 

consumption, ES, in watt-hours (kJ) of 

electricity or the volume of gas consumption, 

VS, in standard cubic feet (L) during the selfcleaning test set forth in section 3.1.1.1 of 

this appendix. For a gas oven, also measure 

in watt-hours (kJ) any electrical energy, EIS, 

consumed by ignition devices or other 

electrical components required during the 

self-cleaning test. 

3.2.1.4 Standby mode and off mode 

energy consumption. Make measurements as 

specified in section 3.1.1.2 of this appendix. 

If the conventional oven is capable of 

operating in inactive mode, as defined in 

section 1.11 of this appendix, measure the 

average inactive mode power of the 

conventional oven, PIA, in watts as specified 

in section 3.1.1.2.1 of this appendix. If the 

conventional oven is capable of operating in 

off mode, as defined in section 1.13 of this 

appendix, measure the average off mode 

power of the conventional oven, POM, in 

watts as specified in section 3.1.1.2.2 of this 

appendix. 

3.2.2 Conventional surface unit test 

energy consumption. 

3.2.2.1 Conventional surface unit average 

test energy consumption. For the surface unit 

under test, measure the energy consumption, 

ECT, in watt-hours (kJ) of electricity or the 

volume of gas consumption, VCT, in standard 

cubic feet (L) of gas and the test block 

temperature, TCT, at the end of the 15 minute 

(reduced input setting) test interval for the 

test specified in section 3.1.2 of this 

appendix and the total time, tCT, in hours, 

that the unit is under test. Measure any 

electrical energy, EIC, consumed by an 

ignition device of a gas heating element or 

other electrical components required for the 

operation of the conventional gas cooking top 

in watt-hours (kJ). 

3.2.2.2 Conventional surface unit standby 

mode and off mode energy consumption. 

Make measurements as specified in section 

3.1.2.1 of this appendix. If the conventional 

surface unit is capable of operating in 

inactive mode, as defined in section 1.11 of 

this appendix, measure the average inactive 

mode power of the conventional surface unit, 

PIA, in watts as specified in section 3.1.2.1.1 

of this appendix. If the conventional surface 

unit is capable of operating in off mode, as 

defined in section 1.13 of this appendix, 

measure the average off mode power of the 

conventional surface unit, POM, in watts as 

specified in section 3.1.2.1.2 of this 

appendix. 

3.2.3 Conventional range standby mode 

and off mode energy consumption. Make 

measurements as specified in section 3.1.3 of 

this appendix. If the conventional range is 

capable of operating in inactive mode, as 

defined in section 1.11 of this appendix, 

measure the average inactive mode power of 

the conventional range, PIA, in watts as 

specified in section 3.1.3.1 of this appendix. 

If the conventional range is capable of 

operating in off mode, as defined in section 

1.13 of this appendix, measure the average 

off mode power of the conventional range, 

POM, in watts as specified in section 3.1.3.2 

of this appendix. 

3.2.4 Microwave oven test standby mode 

and off mode power. Make measurements as 

specified in section 5.3 of IEC 62301 (First 

Edition) (incorporated by reference; see 

§ 430.3). If the microwave oven is capable of 

operating in standby mode, as defined in 

section 1.17 of this appendix, measure the 

average standby mode power of the 

microwave oven, PSB, in watts as specified in 

section 3.1.4.1 of this appendix. If the 

microwave oven is capable of operating in off 

mode, as defined in section 1.13 of this 

appendix, measure the average off mode 

power of the microwave oven, POM, as 

specified in section 3.1.4.1 of this appendix. 

3.3 Recorded values. 

3.3.1 Record the test room temperature, 

TR, at the start and end of each range, oven, 

or cooking top test, as determined in section 

2.5 of this appendix. 

3.3.2 Record measured test block weights 

W1, W2, and W3 in pounds (kg). 

3.3.3 Record the initial temperature, T1, 

of the test block under test. 

3.3.4 For a conventional oven with a 

thermostat which operates by cycling on and 

off, record the conventional oven test 

measurements TA, EA, TB, EB, TC, EC, TD, ED

for conventional electric ovens, or TA, VA, 

TB, VB, TC, VC, TD, and VD for conventional 

gas ovens. If the thermostat controls the oven 

temperature without cycling on and off, 

record EO. For a gas oven which also uses 

electrical energy for the ignition or operation 

of the oven, also record EIO. 

3.3.5 For a conventional oven that can be 

operated with or without forced convection 

and the oven thermostat controls the oven 

temperature without cycling on and off, 

measure the energy consumed with the 

forced convection mode, (EO)1, and without 

the forced convection mode, (EO)2. If the 

conventional oven operates with or without 

forced convection and the thermostat 

controls the oven temperature by cycling on 

and off, record the conventional oven test 

measurements TA, EA, TB, EB, TC, EC, TD, ED

for conventional electric ovens, or TA, VA, 

TB, VB, TC, VC, TD, and VD for conventional 

gas ovens. For a gas oven that can be 

operated with or without forced convection, 

measure any electrical energy consumed by 

an ignition device or other electrical 

components used during the forced 

convection mode, (EIO)1, and without using 

the forced convection mode, (EIO)2. 

3.3.6 Record the measured energy 

consumption, ES, or gas consumption, VS, 

and for a gas oven, any electrical energy, EIS, 

for the test of the self-cleaning operation of 

a conventional oven. 

3.3.7 For conventional ovens, record the 

conventional oven standby mode and off 

mode test measurements PIA and POM, if 

applicable. For conventional cooktops, 

record the conventional cooking top standby 

mode and off mode test measurements PIA

and POM, if applicable. For conventional 

ranges, record the conventional range 

standby mode and off mode test 

measurements PIA and POM, if applicable. 

3.3.8 For the surface unit under test, 

record the electric energy consumption, ECT, 

or the gas volume consumption, VCT, the 

final test block temperature, TCT, and the 

total test time, tCT. For a gas cooking top 

which uses electrical energy for ignition of 

the burners, also record EIC. 

3.3.9 Record the heating value, Hn, as 

determined in section 2.2.2.2 of this 

appendix for the natural gas supply. 

3.3.10 Record the heating value, Hp, as 

determined in section 2.2.2.3 of this 

appendix for the propane supply. 

3.3.11 Record the average standby mode 

power, PSB, for the microwave oven standby 

mode, as determined in section 3.2.4 of this 

appendix for a microwave oven capable of 

operating in standby mode. Record the 

average off mode power, POM, for the 

microwave oven off mode power test, as 


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determined in section 3.2.4 of this appendix 

for a microwave oven capable of operating in 

off mode. 

4. Calculation of Derived Results From Test 

Measurements 

4.1 Conventional oven. 

4.1.1 Test energy consumption. For a 

conventional oven with a thermostat which 

operates by cycling on and off, calculate the 

test energy consumption, EO, expressed in 

watt-hours (kJ) for electric ovens and in Btus 

(kJ) for gas ovens, and defined as: 

for electric ovens, and, 

for gas ovens, 

Where: 

H = either Hn or Hp, the heating value of the 

gas used in the test as specified in 

sections 2.2.2.2 and 2.2.2.3 of this 

appendix, expressed in Btus per 

standard cubic foot (kJ/L). 

TO = 234 °F (130 °C) plus the initial test block 

temperature. 

and, 

Where: 

TA = block temperature in °F (°C) at the end 

of the last ‘‘ON’’ period of the 

conventional oven before the test block 

reaches TO. 

TB = block temperature in °F (°C) at the 

beginning of the ‘‘ON’’ period following 

the measurement of TA. 

TC = block temperature in °F (°C) at the end 

of the ‘‘ON’’ period which starts with TB. 

TD = block temperature in °F (°C) at the 

beginning of the ‘‘ON’’ period which 

follows the measurement of TC. 

EA = electric energy consumed in Wh (kJ) at 

the end of the last ‘‘ON’’ period before 

the test block reaches TO. 

EB = electric energy consumed in Wh (kJ) at 

the beginning of the ‘‘ON’’ period 

following the measurement of TA. 

EC = electric energy consumed in Wh (kJ) at 

the end of the ‘‘ON’’ period which starts 

with TB. 

ED = electric energy consumed in Wh (kJ) at 

the beginning of the ‘‘ON’’ period which 

follows the measurement of TC. 

VA = volume of gas consumed in standard 

cubic feet (L) at the end of the last ‘‘ON’’ 

period before the test block reaches TO. 

VB = volume of gas consumed in standard 

cubic feet (L) at the beginning of the 

‘‘ON’’ period following the measurement 

of TA. 

VC = volume of gas consumed in standard 

cubic feet (L) at the end of the ‘‘ON’’ 

period which starts with TB. 

VD = volume of gas consumed in standard 

cubic feet (L) at the beginning of the 

‘‘ON’’ period which follows the 

measurement of TC. 

4.1.1.1 Average test energy consumption. 

If the conventional oven can be operated 

with or without forced convection, determine 

the average test energy consumption, EO and 

EIO, in watt-hours (kJ) for electric ovens and 

Btus (kJ) for gas ovens using the following 

equations: 

Where: 

(EO)1 = test energy consumption using the 

forced convection mode in watt-hours 

(kJ) for electric ovens and in Btus (kJ) for 

gas ovens as measured in section 3.2.1.1 

of this appendix. 

(EO)2 = test energy consumption without 

using the forced convection mode in 

watt-hours (kJ) for electric ovens and in 

Btus (kJ) for gas ovens as measured in 

section 3.2.1.1 of this appendix. 

(EIO)1 = electrical energy consumption in 

watt-hours (kJ) of a gas oven in forced 


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31472 Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 

convection mode as measured in section 

3.2.1.1 of this appendix. 

(EIO)2 = electrical energy consumption in 

watt-hours (kJ) of a gas oven without 

using the forced convection mode as 

measured in section 3.2.1.1 of this 

appendix. 

4.1.2 Conventional oven annual energy 

consumption. 

4.1.2.1 Annual cooking energy 

consumption. 

4.1.2.1.1 Annual primary energy 

consumption. Calculate the annual primary 

energy consumption for cooking, ECO, 

expressed in kilowatt-hours (kJ) per year for 

electric ovens and in Btus (kJ) per year for 

gas ovens, and defined as: 

for electric ovens, 

Where: 

EO = test energy consumption as measured in 

section 3.2.1 of this appendix or as 

calculated in sections 4.1.1 or 4.1.1.1 of 

this appendix. 

Ke = 3.412 Btu/Wh (3.6 kJ/Wh,) conversion 

factor of watt-hours to Btus. 

OO = 29.3 kWh (105,480 kJ) per year, annual 

useful cooking energy output of 

conventional electric oven. 

W1 = measured weight of test block in 

pounds (kg). 

Cp = 0.23 Btu/lb-°F (0.96 kJ/kg ÷ °C), specific 

heat of test block. 

TS = 234 °F (130 °C), temperature rise of test 

block. 

for gas ovens, 

Where: 

EO = test energy consumption as measured in 

section 3.2.1 of this appendix or as 

calculated in sections 4.1.1 or 4.1.1.1 of 

this appendix. 

OO = 88.8 kBtu (93,684 kJ) per year, annual 

useful cooking energy output of 

conventional gas oven. 

W1, Cp and TS are the same as defined above. 

4.1.2.1.2 Annual secondary energy 

consumption for cooking of gas ovens. 

Calculate the annual secondary energy 

consumption for cooking, ESO, expressed 

in kilowatt-hours (kJ) per year and 

defined as: 

Where: 

EIO = electrical test energy consumption as 

measured in section 3.2.1 of this 

appendix or as calculated in section 

4.1.1.1 of this appendix. 

OO = 29.3 kWh (105,480 kJ) per year, annual 

useful cooking energy output. 

Ke, W1, Cp, and TS are as defined in section 

4.1.2.1.1 of this appendix. 

4.1.2.2 Annual conventional oven selfcleaning energy. 

4.1.2.2.1 Annual primary energy 

consumption. Calculate the annual primary 

energy consumption for conventional oven 

self-cleaning operations, ESC, expressed in 

kilowatt-hours (kJ) per year for electric ovens 

and in Btus (kJ) for gas ovens, and defined 

as: 

ESC = ES × Se × K, for electric ovens, 

Where: 

ES = energy consumption in watt-hours, as 

measured in section 3.2.1.3 of this 

appendix. 

Se = 4, average number of times a selfcleaning operation of a conventional 

electric oven is used per year. 

K = 0.001 kWh/Wh conversion factor for 

watt-hours to kilowatt-hours. 

or 

ESC = VS × H × Sg, for gas ovens, 

Where: 

VS = gas consumption in standard cubic feet 

(L), as measured in section 3.2.1.3 of this 

appendix. 

H = Hn or Hp, the heating value of the gas 

used in the test as specified in sections 

2.2.2.2 and 2.2.2.3 of this appendix in 

Btus per standard cubic foot (kJ/L). 

Sg = 4, average number of times a selfcleaning operation of a conventional gas 

oven is used per year. 

4.1.2.2.2 Annual secondary energy 

consumption for self-cleaning operation 

of gas ovens. Calculate the annual 

secondary energy consumption for selfcleaning operations of a gas oven, ESS, 

expressed in kilowatt-hours (kJ) per year 

and defined as: 

ESS = EIS × Sg × K, 

Where: 

EIS = electrical energy consumed during the 

self-cleaning operation of a conventional 

gas oven, as measured in section 3.2.1.3 

of this appendix. 

Sg = 4, average number of times a selfcleaning operation of a conventional gas 

oven is used per year. 

K = 0.001 kWh/Wh conversion factor for 

watt-hours to kilowatt-hours. 

4.1.2.3 Annual combined low-power 

mode energy consumption of a single 

conventional oven. Calculate the annual 

standby mode and off mode energy 

consumption for conventional ovens, EOTLP,

expressed in kilowatt-hours (kJ) per year and 

defined as: 

EOTLP = [(PIA × SIA) + (POM × SOM)] × K, 

Where: 

PIA = conventional oven inactive mode 

power, in watts, as measured in section 

3.2.1.4 of this appendix. 

POM = conventional oven off mode power, in 

watts, as measured in section 3.2.1.4 of 

this appendix. 

STOT equals the total number of inactive 

mode and off mode hours per year; 

If the conventional oven has fan-only mode, 

STOT equals (8,540.1 ¥ (tOF/60)) hours, 

where tOF is the conventional oven fanonly mode duration, in minutes, as 

measured in section 3.2.1.2 of this 

appendix, and 60 is the conversion factor 

for minutes to hours; otherwise, STOT is 

equal to 8,540.1 hours. 

If the conventional oven has both inactive 

mode and off mode, SIA and SOM both 

equal STOT/2; 

If the conventional oven has an inactive 

mode but no off mode, the inactive mode 

annual hours, SIA, is equal to STOT and 

the off mode annual hours, SOM, is equal 

to 0; 

If the conventional oven has an off mode but 

no inactive mode, SIA is equal to 0 and 

SOM is equal to STOT; 

K = 0.001 kWh/Wh conversion factor for 

watt-hours to kilowatt-hours. 

4.1.2.4 Total annual energy consumption 

of a single conventional oven. 

4.1.2.4.1 Conventional electric oven 

energy consumption. Calculate the total 

annual energy consumption of a 

conventional electric oven, EAO, expressed in 

kilowatt-hours (kJ) per year and defined as: 

EAO = ECO + ESC, 

Where: 

ECO = annual primary cooking energy 

consumption as determined in section 

4.1.2.1.1 of this appendix. 

ESC = annual primary self-cleaning energy 

consumption as determined in section 

4.1.2.2.1 of this appendix. 

4.1.2.4.2 Conventional electric oven 

integrated energy consumption. Calculate the 


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total integrated annual electrical energy 

consumption of a conventional electric oven, 

IEAO, expressed in kilowatt-hours (kJ) per 

year and defined as: 

IEAO = ECO + ESC + EOTLP, + (EOF × NOE), 

Where: 

ECO = annual primary cooking energy 

consumption as determined in section 

4.1.2.1.1 of this appendix. 

ESC = annual primary self-cleaning energy 

consumption as determined in section 

4.1.2.2.1 of this appendix. 

EOTLP = annual combined low-power mode 

energy consumption as determined in 

section 4.1.2.3 of this appendix. 

EOF = fan-only mode energy consumption as 

measured in section 3.2.1.2 of this 

appendix. 

NOE = representative number of annual 

conventional electric oven cooking 

cycles per year, which is equal to 219 

cycles for a conventional electric oven 

without self-clean capability and 204 

cycles for a conventional electric oven 

with self-clean capability. 

4.1.2.4.3 Conventional gas oven energy 

consumption. Calculate the total annual 

gas energy consumption of a 

conventional gas oven, EAOG, expressed 

in Btus (kJ) per year and defined as: 

EAOG = ECO + ESC, 

Where: 

ECO = annual primary cooking energy 

consumption as determined in section 

4.1.2.1.1 of this appendix. 

ESC = annual primary self-cleaning energy 

consumption as determined in section 

4.1.2.2.1 of this appendix. 

If the conventional gas oven uses electrical 

energy, calculate the total annual electrical 

energy consumption, EAOE, expressed in 

kilowatt-hours (kJ) per year and defined as: 

EAOE = ESO + ESS, 

Where: 

ESO = annual secondary cooking energy 

consumption as determined in section 

4.1.2.1.2 of this appendix. 

ESS = annual secondary self-cleaning energy 

consumption as determined in section 

4.1.2.2.2 of this appendix. 

If the conventional gas oven uses electrical 

energy, also calculate the total integrated 

annual electrical energy consumption, IEAOE, 

expressed in kilowatt-hours (kJ) per year and 

defined as: 

IEAOE = ESO + ESS+ EOTLP + (EOF × NOG), 

Where: 

ESO = annual secondary cooking energy 

consumption as determined in section 

4.1.2.1.2 of this appendix. 

ESS = annual secondary self-cleaning energy 

consumption as determined in section 

4.1.2.2.2 of this appendix. 

EOTLP = annual combined low-power mode 

energy consumption as determined in 

section 4.1.2.3 of this appendix. 

EOF = fan-only mode energy consumption as 

measured in section 3.2.1.2 of this 

appendix. 

NOG = representative number of annual 

conventional gas oven cooking cycles per 

year, which is equal to 183 cycles for a 

conventional gas oven without self-clean 

capability and 197 cycles for a 

conventional gas oven with self-clean 

capability. 

4.1.2.5 Total annual energy consumption 

of multiple conventional ovens. If the 

cooking appliance includes more than one 

conventional oven, calculate the total annual 

energy consumption of the conventional 

ovens using the following equations: 

4.1.2.5.1 Conventional electric oven 

energy consumption. Calculate the total 

annual energy consumption, ETO, in kilowatthours (kJ) per year and defined as: 

ETO = EACO + EASC, 

Where: 

is the average annual primary energy 

consumption for cooking, and where: 

n = number of conventional ovens in the 

basic model. 

ECO = annual primary energy consumption 

for cooking as determined in section 

4.1.2.1.1 of this appendix. 

average annual self-cleaning energy 

consumption, 

Where: 

n = number of self-cleaning conventional 

ovens in the basic model. 

ESC = annual primary self-cleaning energy 

consumption as determined according to 

section 4.1.2.2.1 of this appendix. 

4.1.2.5.2 Conventional electric oven 

integrated energy consumption. Calculate the 

total integrated annual energy consumption, 

IETO, in kilowatt-hours (kJ) per year and 

defined as: 

IETO = EACO + EASC + EOTLP + (EOF × NOE), 

Where: 

is the average annual primary energy 

consumption for cooking, and where: 

n = number of conventional ovens in the 

basic model. 

ECO = annual primary energy consumption 

for cooking as determined in section 

4.1.2.1.1 of this appendix. 

average annual self-cleaning energy 

consumption, 

Where: 

n = number of self-cleaning conventional 

ovens in the basic model. 

ESC = annual primary self-cleaning energy 

consumption as determined according to 

section 4.1.2.2.1 of this appendix. 

EOTLP = annual combined low-power mode 

energy consumption for the cooking 

appliance as determined in section 

4.1.2.3 of this appendix. 

EOF = fan-only mode energy consumption as 

measured in section 3.2.1.2 of this 

appendix. 

NOE = representative number of annual 

conventional electric oven cooking 

cycles per year, which is equal to 219 

cycles for a conventional electric oven 

without self-clean capability and 204 

cycles for a conventional electric oven 

with self-clean capability. 

4.1.2.5.3 Conventional gas oven energy 

consumption. Calculate the total annual gas 

energy consumption, ETOG, in Btus (kJ) per 

year and defined as: 

ETOG = EACO + EASC, 

Where: 

EACO = average annual primary energy 

consumption for cooking in Btus (kJ) per 

year and is calculated as: 

Where: 

n = number of conventional ovens in the 

basic model. 

ECO = annual primary energy consumption 

for cooking as determined in section 

4.1.2.1.1 of this appendix. 

and, 

EASC = average annual self-cleaning energy 

consumption in Btus (kJ) per year and is 

calculated as: 

Where: 

n = number of self-cleaning conventional 

ovens in the basic model. 

ESC = annual primary self-cleaning energy 

consumption as determined according to 

section 4.1.2.2.1 of this appendix. 

If the oven also uses electrical energy, 

calculate the total annual electrical energy 

consumption, ETOE, in kilowatt-hours (kJ) per 

year and defined as: 

ETOE = EASO + EAAS, 

Where: 

is the average annual secondary energy 

consumption for cooking, 

Where: 

n = number of conventional ovens in the 

basic model. 

ESO = annual secondary energy consumption 

for cooking of gas ovens as determined 

in section 4.1.2.1.2 of this appendix. 


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31474 Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 

is the average annual secondary self-cleaning 

energy consumption, 

Where: 

n = number of self-cleaning ovens in the 

basic model. 

ESS = annual secondary self-cleaning energy 

consumption of gas ovens as determined 

in section 4.1.2.2.2 of this appendix. 

If the oven also uses electrical energy, also 

calculate the total integrated annual electrical 

energy consumption, IETOE, in kilowatt-hours 

(kJ) per year and defined as: 

IETOE = EASO + EAAS + EOTLP + (EOF × NOG), 

Where: 

is the average annual secondary energy 

consumption for cooking, 

Where: 

n = number of conventional ovens in the 

basic model. 

ESO = annual secondary energy consumption 

for cooking of gas ovens as determined 

in section 4.1.2.1.2 of this appendix. 

is the average annual secondary self-cleaning 

energy consumption, 

Where: 

n = number of self-cleaning ovens in the 

basic model. 

ESS = annual secondary self-cleaning energy 

consumption of gas ovens as determined 

in section 4.1.2.2.2 of this appendix. 

EOTLP = annual combined low-power mode 

energy consumption as determined in 

section 4.1.2.3 of this appendix. 

EOF = fan-only mode energy consumption as 

measured in section 3.2.1.2 of this 

appendix. 

NOG = representative number of annual 

conventional gas oven cooking cycles per 

year, which is equal to 183 cycles for a 

conventional gas oven without self-clean 

capability and 197 cycles for a 

conventional gas oven with self-clean 

capability. 

4.1.3 Conventional oven cooking 

efficiency. 

4.1.3.1 Single conventional oven. 

Calculate the conventional oven cooking 

efficiency, EffAO, using the following 

equations: 

For electric ovens: 

and, 

For gas ovens: 

Where: 

W1 = measured weight of test block in 

pounds (kg). 

Cp = 0.23 Btu/lb-°F (0.96 kJ/kg÷ °C), specific 

heat of test block. 

TS = 234 °F (130 °C), temperature rise of test 

block. 

EO = test energy consumption as measured in 

section 3.2.1 of this appendix or 

calculated in sections 4.1.1 or 4.1.1.1 of 

this appendix. 

Ke = 3.412 Btu/Wh (3.6 kJ/Wh), conversion 

factor for watt-hours to Btus. 

EIO = electrical test energy consumption 

according to section 3.2.1 of this 

appendix or as calculated in section 

4.1.1.1 of this appendix. 

4.1.3.2 Multiple conventional ovens. If 

the cooking appliance includes more than 

one conventional oven, calculate the cooking 

efficiency for all of the conventional ovens in 

the appliance, EffTO, using the following 

equation: 

Where: 

n = number of conventional ovens in the 

cooking appliance. 

EffAO = cooking efficiency of each oven 

determined according to section 4.1.3.1 

of this appendix. 

4.1.4 Conventional oven energy factor 

and integrated energy factor. 

4.1.4.1 Conventional oven energy factor. 

Calculate the energy factor, or the ratio of 

useful cooking energy output to the total 

energy input, RO, using the following 

equations: 

For electric ovens, 

Where: 

OO = 29.3 kWh (105,480 kJ) per year, annual 

useful cooking energy output. 

EAO = total annual energy consumption for 

electric ovens as determined in section 

4.1.2.4.1 of this appendix. 

For gas ovens: 

Where: 

OO = 88.8 kBtu (93,684 kJ) per year, annual 

useful cooking energy output. 

EAOG = total annual gas energy consumption 

for conventional gas ovens as determined 

in section 4.1.2.4.3 of this appendix. 

EAOE = total annual electrical energy 

consumption for conventional gas ovens 

as determined in section 4.1.2.4.3 of this 

appendix. 

Ke = 3,412 Btu/kWh (3,600 kJ/kWh), 

conversion factor for kilowatt-hours to 

Btus. 

4.1.4.2 Conventional oven integrated 

energy factor. Calculate the integrated energy 

factor, or the ratio of useful cooking energy 

output to the total integrated energy input, 

IRO, using the following equations: 

For electric ovens, 

Where: 

OO = 29.3 kWh (105,480 kJ) per year, annual 

useful cooking energy output. 

IEAO = total integrated annual energy 

consumption for electric ovens as 

determined in section 4.1.2.4.2 of this 

appendix. 

For gas ovens: 

Where: 

OO = 88.8 kBtu (93,684 kJ) per year, annual 

useful cooking energy output. 

EAOG = total annual gas energy consumption 

for conventional gas ovens as determined 

in section 4.1.2.4.3 of this appendix. 

IEAOE = total integrated annual electrical 

energy consumption for conventional gas 

ovens as determined in section 4.1.2.4.3 

of this appendix. 

Ke = 3,412 Btu/kWh (3,600 kJ/kWh), 

conversion factor for kilowatt-hours to 

Btus. 

4.2 Conventional cooking top. 

4.2.1 Conventional cooking top cooking 

efficiency. 

4.2.1.1 Electric surface unit cooking 

efficiency. Calculate the cooking efficiency, 

EffSU, of the electric surface unit under test, 

defined as: 

Where: 

W = measured weight of test block, W2 or W3, 

expressed in pounds (kg). 

Cp = 0.23 Btu/lb-°F (0.96 kJ/kg ÷ °C), specific 

heat of test block. 

TSU = temperature rise of the test block: final 

test block temperature, TCT, as 

determined in section 3.2.2 of this 

appendix, minus the initial test block 

temperature, TI, expressed in °F (°C) as 

determined in section 2.7.5 of this 

appendix. 

Ke = 3.412 Btu/Wh (3.6 kJ/Wh), conversion 

factor of watt-hours to Btus. 

ECT = measured energy consumption, as 

determined according to section 3.2.2.1 

of this appendix, expressed in watthours (kJ). 

4.2.1.2 Gas surface unit cooking 

efficiency. Calculate the cooking efficiency, 


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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 31475 

EffSU, of the gas surface unit under test, 

defined as: 

Where: 

W3 = measured weight of test block as 

measured in section 3.3.2 of this 

appendix, expressed in pounds (kg). 

Cp and TSU are the same as defined in section 

4.2.1.1 of this appendix. 

and, 

E = VCT + (EIC × Ke), 

Where: 

VCT = total gas consumption in standard 

cubic feet (L) for the gas surface unit test 

as measured in section 3.2.2.1 of this 

appendix. 

EIC = electrical energy consumed in watthours (kJ) by an ignition device of a gas 

surface unit as measured in section 

3.2.2.1 of this appendix. 

Ke = 3.412 Btu/Wh (3.6 kJ/Wh), conversion 

factor of watt-hours to Btus. 

4.2.1.3 Conventional cooking top cooking 

efficiency. Calculate the conventional 

cooking top cooking efficiency, EffCT, using 

the following equation: 

Where: 

n = number of surface units in the cooking 

top. 

EffSU = the efficiency of each of the surface 

units, as determined according to 

sections 4.2.1.1 or 4.2.1.2 of this 

appendix. 

4.2.2 Conventional cooking top annual 

energy consumption. 

4.2.2.1 Conventional electric cooking top. 

4.2.2.1.1 Annual energy consumption of a 

conventional electric cooking top. Calculate 

the annual electrical energy consumption of 

an electric cooking top, ECA, in kilowatthours (kJ) per year, defined as: 

Where: 

OCT = 173.1 kWh (623,160 kJ) per year, 

annual useful cooking energy output. 

EffCT = conventional cooking top cooking 

efficiency as defined in section 4.2.1.3 of 

this appendix. 

4.2.2.1.2 Integrated annual energy 

consumption of a conventional electric 

cooking top. Calculate the total integrated 

annual electrical energy consumption of an 

electric cooking top, IECA, in kilowatt-hours 

(kJ) per year, defined as: 

Where: 

OCT = 173.1 kWh (623,160 kJ) per year, 

annual useful cooking energy output. 

EffCT = conventional cooking top cooking 

efficiency as defined in section 4.2.1.3 of 

this appendix. 

ECTLP = conventional cooking top combined 

low-power mode energy consumption = 

[(PIA × SIA) + (POM × SOM)] × K, 

Where: 

PIA = conventional cooking top inactive 

mode power, in watts, as measured in 

section 3.1.2.1.1 of this appendix. 

POM = conventional cooking top off mode 

power, in watts, as measured in section 

3.1.2.1.2 of this appendix. 

If the conventional cooking top has both 

inactive mode and off mode annual 

hours, SIA and SOM both equal 4273.4; 

If the conventional cooking top has an 

inactive mode but no off mode, the 

inactive mode annual hours, SIA, is equal 

to 8546.9, and the off mode annual 

hours, SOM, is equal to 0; 

If the conventional cooking top has an off 

mode but no inactive mode, SIA is equal 

to 0, and SOM is equal to 8546.9; 

K = 0.001 kWh/Wh conversion factor for 

watt-hours to kilowatt-hours. 

4.2.2.2.2 Total integrated annual energy 

consumption of a conventional gas cooking 

top. Calculate the total integrated annual 

energy consumption of a conventional gas 

cooking top, IECA, in Btus (kJ) per year, 

defined as: 

IECA = ECC + ECTSO, 

Where: 

ECC = energy consumption for cooking as 

determined in section 4.2.2.2.1 of this 

appendix. 

ECTSO = conventional cooking top combined 

low-power mode energy consumption = 

[(PIA × SIA) + (POM × SOM)] × K, 

Where: 

PIA = conventional cooking top inactive 

mode power, in watts, as measured in 

section 3.1.2.1.1 of this appendix. 

POM = conventional cooking top off mode 

power, in watts, as measured in section 

3.1.2.1.2 of this appendix. 

If the conventional cooking top has both 

inactive mode and off mode annual 

hours, SIA and SOM both equal 4273.4; 

If the conventional cooking top has an 

inactive mode but no off mode, the 

inactive mode annual hours, SIA, is equal 

to 8546.9, and the off mode annual 

hours, SOM, is equal to 0; 

If the conventional cooking top has an off 

mode but no inactive mode, SIA is equal 

to 0, and SOM is equal to 8546.9; 

K = 0.001 kWh/Wh conversion factor for 

watt-hours to kilowatt-hours. 

4.2.3 Conventional cooking top energy 

factor and integrated energy factor. 

4.2.3.1 Conventional cooking top energy 

factor. Calculate the energy factor or ratio of 

useful cooking energy output for cooking to 

the total energy input, RCT, as follows: 

For an electric cooking top, the energy 

factor is the same as the cooking efficiency 

as determined according to section 4.2.1.3 of 

this appendix. 

For gas cooking tops, 

Where: 

OCT = 527.6 kBtu (556,618 kJ) per year, 

annual useful cooking energy output of 

cooking top. 

ECC = energy consumption for cooking as 

determined in section 4.2.2.2.1 of this 

appendix. 

4.2.3.2 Conventional cooking top 

integrated energy factor. Calculate the 

integrated energy factor or ratio of useful 

cooking energy output for cooking to the total 

integrated energy input, IRCT, as follows: 

For electric cooking tops, 

Where: 

OCT = 527.6 kBtu (556,618 kJ) per year, 

annual useful cooking energy output of 

cooking top. 

IECA = total annual integrated energy 

consumption of cooking top determined 

according to section 4.2.2.1.2 of this 

appendix. 

For gas cooking tops, 

Where: 

OCT = 527.6 kBtu (556,618 kJ) per year, 

annual useful cooking energy output of 

cooking top. 

IECA = total integrated annual energy 

consumption of cooking top determined 

according to section 4.2.2.2.2 of this 

appendix. 

4.3 Combined components. The annual 

energy consumption of a kitchen range (e.g., 

a cooking top and oven combined) shall be 

the sum of the annual energy consumption of 

each of its components. The integrated 

annual energy consumption of a kitchen 

range shall be the sum of the annual energy 

consumption of each of its components plus 

the total annual fan-only mode energy 

consumption for the oven component, ETOF, 

defined as: 

ETOF = EOF × NR, 

Where, 

NR = representative number of annual 

conventional oven cooking cycles per 

year, which is equal to 219 cycles for a 

conventional electric oven without selfclean capability, 204 cycles for a 

conventional electric oven with selfclean capability, 183 cycles for a 

conventional gas oven without self-clean 

capability, and 197 cycles for a 

conventional gas oven with self-clean 

capability, 

plus the conventional range integrated 

annual combined low-power mode energy 

consumption, 

ERTLP, defined as: 


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31476 Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 

ERTLP = [(PIA × SIA) + (POM × SOM)] × K 

Where: 

PIA = conventional range inactive mode 

power, in watts, as measured in section 

3.1.3.1 of this appendix. 

POM = conventional range off mode power, in 

watts, as measured in section 3.1.3.2 of 

this appendix. 

STOT equals the total number of inactive 

mode and off mode hours per year; 

If the conventional oven component of the 

conventional range has fan-only mode, 

STOT equals (8,329.2¥(tOF/60)) hours, 

where tOF is the conventional oven fanonly mode duration, in minutes, as 

measured in section 3.2.1.2 of this 

appendix, and 60 is the conversion factor 

for minutes to hours; otherwise, STOT is 

equal to 8,329.2 hours. 

If the conventional range has both inactive 

mode and off mode, SIA and SOM both 

equal STOT/2; 

If the conventional range has an inactive 

mode but no off mode, the inactive mode 

annual hours, SIA, is equal to STOT, and 

the off mode annual hours, SOM, is equal 

to 0; 

If the conventional range has an off mode but 

no inactive mode, SIA is equal to 0, and 

SOM is equal to STOT; 

K = 0.001 kWh/Wh conversion factor for 

watt-hours to kilowatt-hours. 

The annual energy consumption for other 

combinations of ovens and cooktops will also 

be treated as the sum of the annual energy 

consumption of each of its components. The 

energy factor of a combined component is the 

sum of the annual useful cooking energy 

output of each component divided by the 

sum of the total annual energy consumption 

of each component. The integrated energy 

factor of other combinations of ovens and 

cooktops is the sum of the annual useful 

cooking energy output of each component 

divided by the sum of the total integrated 

annual energy consumption of each 

component. 

6. Appendix X to subpart B of part 

430 is revised to read as follows: 

Appendix X to Subpart B of Part 430— 

Uniform Test Method for Measuring the 

Energy Consumption of Dehumidifiers 

Note: The procedures and calculations that 

refer to standby mode and off mode energy 

consumption (i.e., sections 3.2, 3.2.1 through 

3.2.4, 4.2, 4.2.1 through 4.2.4, 5.1, and 5.2 of 

this appendix) need not be performed to 

determine compliance with energy 

conservation standards for dehumidifiers at 

this time. However, any representation 

related to standby mode and off mode energy 

consumption of these products made after 

(date 180 days after date of publication of the 

test procedure final rule in the Federal 

Register) must be based upon results 

generated under this test procedure, 

consistent with the requirements of 42 U.S.C. 

6293(c)(2). Upon the compliance date for any 

energy conservation standards that 

incorporate standby mode and off mode 

energy consumption, compliance with the 

applicable provisions of this test procedure 

will be required. 

1. Scope 

This appendix covers the test requirements 

used to measure the energy performance of 

dehumidifiers. 

2. Definitions 

a. ANSI/AHAM DH–1 means the test 

standard published by the American National 

Standards Institute and the Association of 

Home Appliance Manufacturers, titled 

‘‘Dehumidifiers,’’ ANSI/AHAM DH–1–2008, 

(incorporated by reference; see § 430.3). 

b. Active mode means a mode in which a 

dehumidifier is connected to a mains power 

source, has been activated, and is performing 

the main functions of removing moisture 

from air by drawing moist air over a 

refrigerated coil using a fan, or circulating air 

through activation of the fan without 

activation of the refrigeration system. 

c. Bucket full/removed mode means a 

standby mode in which the dehumidifier has 

automatically powered off its main function 

by detecting when the water bucket is full or 

has been removed. 

d. Energy factor for dehumidifiers means a 

measure of energy efficiency of a 

dehumidifier calculated by dividing the 

water removed from the air by the energy 

consumed, measured in liters per kilowatthour (L/kWh). 

e. IEC 62301 means the test standard 

published by the International 

Electrotechnical Commission, titled 

‘‘Household electrical appliances— 

Measurement of standby power,’’ Publication 

62301 (Edition 2.0 2011–01) (incorporated by 

reference; see § 430.3). 

f. Inactive mode means a standby mode 

that facilitates the activation of active mode 

by remote switch (including remote control), 

internal sensor, or timer, or that provides 

continuous status display. 

g. Off mode means a mode in which the 

dehumidifier is connected to a mains power 

source and is not providing any active mode 

or standby mode function, and where the 

mode may persist for an indefinite time. An 

indicator that only shows the user that the 

dehumidifier is in the off position is 

included within the classification of an off 

mode. 

h. Off-cycle mode means a standby mode 

in which the dehumidifier: 

(1) Has cycled off its main function by 

humidistat or humidity sensor; 

(2) Does not have its fan or blower 

operating; and 

(3) Will reactivate the main function 

according to the humidistat or humidity 

sensor signal. 

i. Product capacity for dehumidifiers 

means a measure of the ability of the 

dehumidifier to remove moisture from its 

surrounding atmosphere, measured in pints 

collected per 24 hours of continuous 

operation. 

j. Standby mode means any modes where 

the dehumidifier is connected to a mains 

power source and offers one or more of the 

following user-oriented or protective 

functions which may persist for an indefinite 

time: 

(1) To facilitate the activation of other 

modes (including activation or deactivation 

of active mode) by remote switch (including 

remote control), internal sensor, or timer; 

(2) Continuous functions, including 

information or status displays (including 

clocks) or sensor-based functions. A timer is 

a continuous clock function (which may or 

may not be associated with a display) that 

provides regular scheduled tasks (e.g., 

switching) and that operates on a continuous 

basis. 

3. Test Apparatus and General Instructions 

3.1 Active mode. The test apparatus and 

instructions for testing dehumidifiers shall 

conform to the requirements specified in 

section 3, ‘‘Definitions,’’ section 4, 

‘‘Instrumentation,’’ and section 5, ‘‘Test 

Procedure,’’ of ANSI/AHAM DH–1 

(incorporated by reference, see § 430.3). 

Record measurements at the resolution of the 

test instrumentation. Round off calculations 

to the same number of significant digits as 

the previous step. Round the final minimum 

energy factor value to two decimal places as 

follows: 

(i) A fractional number at or above the 

midpoint between two consecutive decimal 

places shall be rounded up to the higher of 

the two decimal places; or 

(ii) A fractional number below the 

midpoint between two consecutive decimal 

places shall be rounded down to the lower 

of the two decimal places. 

3.2 Standby mode and off mode. 

3.2.1 Installation requirements. For the 

standby mode and off mode testing, the 

dehumidifier shall be installed in accordance 

with section 5.2 of IEC 62301 (incorporated 

by reference, see § 430.3), disregarding the 

provisions regarding batteries and the 

determination, classification, and testing of 

relevant modes. 

3.2.2 Electrical energy supply. 

3.2.2.1 Electrical supply. For the standby 

mode and off mode testing, maintain the 

electrical supply voltage and frequency 

indicated in section 7.1.3, ‘‘Standard Test 

Voltage,’’ of ANSI/AHAM DH–1, 

(incorporated by reference, see § 430.3). The 

electrical supply frequency shall be 

maintained ±1 percent. 

3.2.2.2 Supply voltage waveform. For the 

standby mode and off mode testing, maintain 

the electrical supply voltage waveform 

indicated in section 4, paragraph 4.3.2 of IEC 

62301, (incorporated by reference; see 

§ 430.3). 

3.2.3 Standby mode and off mode watt 

meter. The watt meter used to measure 

standby mode and off mode power 

consumption shall meet the requirements 

specified in section 4.4 of IEC 62301 

(incorporated by reference, see § 430.3). 

3.2.4 Standby mode and off mode 

ambient temperature. For standby mode and 

off mode testing, maintain room ambient air 

temperature conditions as specified in 

section 4.2 of IEC 62301 (incorporated by 

reference; see § 430.3). 

4. Test Measurement 

4.1 Active mode. Measure the energy 

factor for dehumidifiers, expressed in liters 

per kilowatt hour (L/kWh) and product 

capacity in pints per day (pints/day), in 

accordance with the test requirements 

specified in section 7, ‘‘Capacity Test and 

Energy Consumption Test,’’ of ANSI/AHAM 


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Federal Register / Vol. 77, No. 102 / Friday, May 25, 2012 / Proposed Rules 31477 

DH–1 (incorporated by reference, see 

§ 430.3). 

4.2 Standby mode and off mode. 

Establish the testing conditions set forth in 

section 3.2 of this appendix. For 

dehumidifiers that take some time to enter a 

stable state from a higher power state as 

discussed in section 5.1, Note 1 of IEC 62301, 

(incorporated by reference; see § 430.3), 

allow sufficient time for the dehumidifier to 

reach the lower power state before 

proceeding with the test measurement. 

Follow the test procedure specified in section 

5.3.2 of IEC 62301 for testing in each possible 

mode as described in sections 4.2.1 through 

4.2.4 of this appendix. 

4.2.1 If the dehumidifier has an inactive 

mode, as defined in section 2(f) of this 

appendix, measure and record the average 

inactive mode power of the dehumidifier, 

PIA, in watts. 

4.2.2 If the dehumidifier has an off-cycle 

mode, as defined in section 2(h) of this 

appendix, measure and record the average 

off-cycle mode power of the dehumidifier, 

POC, in watts. 

4.2.3 If the dehumidifier has a bucket 

full/removed mode, as defined in section 2(c) 

of this appendix, measure and record the 

average bucket full/removed mode power of 

the dehumidifier, PBFR, in watts. 

4.2.4 If the dehumidifier has an off mode, 

as defined in section 2(g) of this appendix, 

measure and record the average off mode 

power, POM, in watts. 

5. Calculation of Derived Results From Test 

Measurements 

5.1 Standby mode and off mode annual 

energy consumption. Calculate the standby 

mode and off mode annual energy 

consumption for dehumidifiers, ETSO,

expressed in kilowatt-hours per year, 

according to the following: 

ETSO = [(PIA × SIA) + (POC × SOC) + (PBFR × 

SBFR) + (POM × SOM)] × K 

Where: 

PIA = dehumidifier inactive mode power, in 

watts, as measured in section 4.2.1 of 

this appendix. 

POC = dehumidifier off-cycle mode power, in 

watts, as measured in section 4.2.2 of 

this appendix. 

PBFR = dehumidifier bucket full/removed 

mode power, in watts, as measured in 

section 4.2.3 of this appendix. 

POM = dehumidifier off mode power, in 

watts, as measured in section 4.2.4 of 

this appendix. 

If the dehumidifier has an inactive mode and 

off-cycle mode but no off mode, the 

inactive mode annual hours, SIA, is equal 

to STOT/2; the off-cycle mode annual 

hours, SOC, is equal to STOT/2; and the off 

mode annual hours, SOM, is equal to 0; 

STOT equals the total number of inactive 

mode, off-cycle mode, and off mode 

hours per year, defined as: 

If the dehumidifier has bucket full/removed 

mode, STOT equals 3,024 hours; 

If the dehumidifier does not have bucket full/ 

removed mode, STOT equals 3,681 hours; 

If the dehumidifier has an inactive mode and 

off mode but no off-cycle mode, the 

inactive mode annual hours, SIA, is equal 

to STOT/2; the off mode annual hours, 

SOM, is equal to STOT/2; and the off-cycle 

mode annual hours, SOC, is equal to 0; 

If the dehumidifier has an inactive mode but 

no off-cycle mode or off mode, the 

inactive mode annual hours, SIA, is equal 

to STOT, and the off-cycle mode annual 

hours, SOC, and the off mode annual 

hours, SOM, are each equal to 0; 

If the dehumidifier has an off-cycle mode and 

off mode but no inactive mode, the offcycle mode annual hours, SOC, is equal 

to STOT/2; the off mode annual hours, 

SOM, is equal to STOT/2; and the inactive 

mode annual hours, SIA, is equal to 0; 

If the dehumidifier has an off-cycle mode but 

no off mode or inactive mode, the offcycle mode annual hours, SOC, is equal 

to STOT, and the off mode annual hours, 

SOM, and the inactive mode annual 

hours, SIA, are each equal to 0; 

If the dehumidifier has an off mode but no 

inactive mode or off-cycle mode, the off 

mode annual hours, SOM, is equal to 

STOT, and the inactive mode annual 

hours, SIA, and the off-cycle mode 

annual hours, SOC, are both equal to 0; 

If the dehumidifier has an inactive mode, offcycle mode, and off mode, the inactive 

mode annual hours, SIA, is equal to STOT/ 

3; the off-cycle mode annual hours, SOC, 

is equal to STOT/3; and the off mode 

annual hours, SOM, is equal to STOT/3; 

SBFR = 657, dehumidifier bucket full/ 

removed mode annual hours; 

K = 0.001 kWh/Wh conversion factor for 

watt-hours to kilowatt-hours. 

5.2 Integrated energy factor. Calculate the 

integrated energy factor, IEF, expressed in 

liters per kilowatt-hour, rounded to two 

decimal places, according to the following: 

IEF = LW/(Eactive + ((ETSO × 24)/Sactive)) 

Where: 

LW = water removed from the air during 

dehumidifier energy factor test, in liters, 

as measured in section 4.1 of this 

appendix. 

Eactive = dehumidifier energy factor test 

energy consumption, in kilowatt-hours, 

as measured in section 4.1 of this 

appendix. 

ETSO = standby mode and off mode annual 

energy consumption, in kilowatt-hours 

per year, as calculated in section 5.1 of 

this appendix. 

24 = hours per day. 

Sactive = 1,095, dehumidifier active mode 

annual hours. 

[FR Doc. 2012–11155 Filed 5–24–12; 8:45 am] 

BILLING CODE 6450–01–P 


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