Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 43633 

components, officers, employees, or 

members in pending or potential 

litigation to which the record is 

pertinent. 

D. In an appropriate proceeding 

before a court, grand jury, or 

administrative or adjudicative body or 

official, when the DoD or other Agency 

representing the DoD determines that 

the records are relevant and necessary to 

the proceeding; or in an appropriate 

proceeding before an administrative or 

adjudicative body when the adjudicator 

determines the records to be relevant to 

the proceeding. 

E. To the National Archives and 

Records Administration for the purpose 

of records management inspections 

conducted under the authority of 44 

U.S.C. 2904 and 2906. 

F. To a Member of Congress or staff 

acting upon the Member’s behalf when 

the Member or staff requests the 

information on behalf of, and at the 

request of, the individual who is the 

subject of the record. 

G. To appropriate agencies, entities, 

and persons when (1) the DoD suspects 

or confirms a breach of the system of 

records; (2) the DoD determines as a 

result of the suspected or confirmed 

breach there is a risk of harm to 

individuals, the DoD (including its 

information systems, programs, and 

operations), the Federal Government, or 

national security; and (3) the disclosure 

made to such agencies, entities, and 

persons is reasonably necessary to assist 

in connection with the DoD’s efforts to 

respond to the suspected or confirmed 

breach or to prevent, minimize, or 

remedy such harm. 

H. To another Federal agency or 

Federal entity, when the DoD 

determines that information from this 

system of records is reasonably 

necessary to assist the recipient agency 

or entity in (1) responding to a 

suspected or confirmed breach or (2) 

preventing, minimizing, or remedying 

the risk of harm to individuals, the 

recipient agency or entity (including its 

information systems, programs and 

operations), the Federal Government, or 

national security, resulting from a 

suspected or confirmed breach. 

I. To such recipients and under such 

circumstances and procedures as are 

mandated by Federal statute or treaty. 

J. To the United States Coast Guard 

(USCG) to share DoD information to 

ensure it maintains a state of readiness 

to function as a specialized military 

Service in the Department of Navy in a 

time of war or national emergency. 

K. To DoD-approved Coalition 

Partners for the purposes of routine 

mission supporting activities. In return, 

the Coalition partner may disclose 

system of records information to DoD or 

a DoD component. 

L. To partner Five Eyes (FVEY) 

Nations to provide information pursuant 

to existing bilateral agreement(s) in 

order to populate the information into 

the FVEY national directory. 

POLICIES AND PRACTICES FOR STORAGE OF

RECORDS: 

Records may be stored electronically 

in secure facilities behind a locked door. 

The records may be stored on magnetic 

disc, tape, or digital media; in agencyowned cloud environments; or in 

vendor Cloud Service Offerings certified 

under the Federal Risk and 

Authorization Management Program 

(FedRAMP). 

POLICIES AND PRACTICES FOR RETRIEVAL OF

RECORDS: 

These records are retrieved by 

individual name and DoD ID Number. 

POLICIES AND PRACTICES FOR RETENTION AND

DISPOSAL OF RECORDS: 

System’s sole function is to receive 

and integrate data from two or more 

other systems and export the resultant 

product to yet another independent 

system. These records are maintained as 

temporary which may be destroyed 

upon verification of successful creation 

of the final document or file, or when 

no longer needed for business use, 

whichever is later. 

ADMINISTRATIVE, TECHNICAL, AND PHYSICAL

SAFEGUARDS: 

Access to the type and amount of data 

is governed by privilege management 

software and policies developed and 

enforced by Federal government 

personnel. Data is protected by 

repository and interfaces, including, but 

not limited to multi-layered firewalls, 

Secure Sockets Layer/Transport Layer 

Security (SSL/TLS) connections, access 

control lists, file system permissions, 

intrusion detection and prevention 

systems and log monitoring. Complete 

access to all records is restricted to and 

controlled by certified system 

management personnel, who are 

responsible for maintaining the EASF 

directory integrity and the data 

confidentiality. Access to computerized 

data is restricted by CAC. 

RECORD ACCESS PROCEDURES: 

Individuals seeking access to their 

records should follow the procedures in 

32 CFR part 310. Individuals should 

address written inquiries to the Defense 

Information Systems Agency (DISA), 

FOIA Service Center, Defense 

Information Systems Agency, ATTN: 

Headquarters FOIA Requester Service 

Center, P.O. Box 549, Ft Meade, MD 

20755–0549. Signed, written requests 

should include the individual’s full 

name, current address, telephone 

number, and the name and number of 

this system of records notice. 

In addition, the requester must 

provide a notarized statement or an 

unsworn declaration made in 

accordance with 28 U.S.C. 1746, in the 

following format: 

If executed outside the United States: 

‘‘I declare (or certify, verify, or state) 

under penalty of perjury under the laws 

of the United States of America that the 

foregoing is true and correct. Executed 

on (date). (Signature).’’ 

If executed within the United States, 

its territories, possessions, or 

commonwealths: ‘‘I declare (or certify, 

verify, or state) under penalty of perjury 

that the foregoing is true and correct. 

Executed on (date). (Signature).’’ 

CONTESTING RECORD PROCEDURES: 

The DoD rules for accessing records, 

contesting contents, and appealing 

initial Component determinations are 

contained in 32 CFR part 310, or may 

be obtained from the system manager. 

NOTIFICATION PROCEDURES: 

Individuals seeking to determine 

whether information about themselves 

is contained in this system of records 

should follow the instructions for 

Record Access Procedures above. 

EXEMPTIONS PROMULGATED FOR THE SYSTEM: 

None. 

HISTORY: 

December 8, 2010, 75 FR 76426; June 

16, 2014, 79 FR 34299 

[FR Doc. 2021–17000 Filed 8–9–21; 8:45 am] 

BILLING CODE 5001–06–P 

DEPARTMENT OF ENERGY 

[Case Number 2021–006; EERE–2021–BT– 

WAV–0014] 

Energy Conservation Program: 

Notification of Petition for Waiver of 

RefPlus Inc. From the Department of 

Energy Walk-In Coolers and Walk-In 

Freezers Test Procedure and 

Notification of Grant of Interim Waiver 

AGENCY: Office of Energy Efficiency and 

Renewable Energy, Department of 

Energy. 

ACTION: Notification of petition for 

waiver and grant of an interim waiver; 

request for comments. 

SUMMARY: This notification announces 

receipt of and publishes a petition for 

waiver and interim waiver from RefPlus, 

Inc. (‘‘RefPlus’’), which seeks a waiver 


jbell on DSKJLSW7X2PROD with NOTICES
43634 Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 

1The petition did not identify any of the 

information contained therein as confidential 

business information. 

for specified carbon dioxide (‘‘CO2’’) 

direct expansion unit cooler basic 

models from the U.S. Department of 

Energy (‘‘DOE’’) test procedure used for 

determining the efficiency of walk-in 

cooler and walk-in freezer refrigeration 

systems. DOE also gives notification of 

an Interim Waiver Order that requires 

RefPlus to test and rate the specified 

CO2 direct expansion unit cooler basic 

models in accordance with the alternate 

test procedure set forth in the Interim 

Waiver Order. DOE solicits comments, 

data, and information concerning 

RefPlus’s petition and its suggested 

alternate test procedure so as to inform 

DOE’s final decision on RefPlus’s 

waiver request. 

DATES: Written comments and 

information are requested and will be 

accepted on or before September 9, 

2021. 

ADDRESSES: Interested persons are 

encouraged to submit comments using 

the Federal eRulemaking Portal at 

www.regulations.gov. Alternatively, 

interested persons may submit 

comments, identified by docket number 

EERE–2021–BT–WAV–0014, by any of 

the following methods: 

1. Federal eRulemaking Portal: 

www.regulations.gov. Follow the 

instructions for submitting comments. 

2. Email: to REFPLUS2021WAV0014@

ee.doe.gov. Include docket number 

EERE–2021–BT–WAV–0014 in the 

subject line of the message. 

No telefacsimiles (‘‘faxes’’) will be 

accepted. For detailed instructions on 

submitting comments and additional 

information on this process, see the 

SUPPLEMENTARY INFORMATION section of 

this document. 

Although DOE has routinely accepted 

public comment submissions through a 

variety of mechanisms, including postal 

mail and hand delivery/courier, the 

Department has found it necessary to 

make temporary modifications to the 

comment submission process in light of 

the ongoing Covid–19 pandemic. DOE is 

currently suspending receipt of public 

comments via postal mail and hand 

delivery/courier. If a commenter finds 

that this change poses an undue 

hardship, please contact Appliance 

Standards Program staff at (202) 586– 

1445 to discuss the need for alternative 

arrangements. Once the Covid–19 

pandemic health emergency is resolved, 

DOE anticipates resuming all of its 

regular options for public comment 

submission, including postal mail and 

hand delivery/courier. 

Docket: The docket, which includes 

Federal Register notices, comments, 

and other supporting documents/ 

materials, is available for review at 

www.regulations.gov. All documents in 

the docket are listed in the 

www.regulations.gov index. However, 

some documents listed in the index, 

such as those containing information 

that is exempt from public disclosure, 

may not be publicly available. 

The docket web page can be found at 

https://www.regulations.gov/ 

docket?D=EERE-2021-BT-WAV-0014. 

The docket web page contains 

instruction on how to access all 

documents, including public comments, 

in the docket. See the SUPPLEMENTARY

INFORMATION section for information on 

how to submit comments through 

www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: Ms. 

Lucy deButts, U.S. Department of 

Energy, Office of Energy Efficiency and 

Renewable Energy, Building 

Technologies Office, Mailstop EE–5B, 

1000 Independence Avenue SW, 

Washington, DC 20585–0121. Email: 

AS_Waiver_Request@ee.doe.gov. 

Mr. Michael Kido, U.S. Department of 

Energy, Office of the General Counsel, 

Mail Stop GC–33, Forrestal Building, 

1000 Independence Avenue SW, 

Washington, DC 20585–0103. 

Telephone: (202) 586–8145. Email: 

Michael.Kido@hq.doe.gov. 

SUPPLEMENTARY INFORMATION: In this 

notice, DOE is publishing RefPlus’s 

petition for waiver in its entirety, 

pursuant to 10 CFR 431.401(b)(1)(iv)).1

DOE is also publishing the Interim 

Waiver Order granted to RefPlus, which 

serves as notification of DOE’s 

determination regarding RefPlus’s 

petition for an interim waiver, pursuant 

to 10 CFR 431.401(e)(1)(ii). DOE invites 

all interested parties to submit in 

writing by September 9, 2021, 

comments and information on all 

aspects of the petition, including the 

alternate test procedure. Pursuant to 10 

CFR 431.401(d), any person submitting 

written comments to DOE must also 

send a copy of such comments to the 

petitioner. The contact information for 

the petitioner is Michel Lecompte, 

mlecompte@refplus.com, 2777, GrandeAlle ́e St-Hubert, Quebec Canada, J4T 

2R4. 

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. If 

this instruction is followed, 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 

website 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. 

Comments and documents submitted 

via email 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. Faxes 

will not be accepted. 


jbell on DSKJLSW7X2PROD with NOTICES
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 43635 

2All references to EPCA in this document refer 

to the statute as amended through the Energy Act 

of 2020, Public Law 116–260 (Dec. 27, 2020). 

3For editorial reasons, upon codification in the 

U.S. Code, Part C was redesignated as Part A–1. 

4 In proposing an amendment to 10 CFR 

431.401(i), DOE stated that—‘‘The 180 day duration 

was proposed because that time frame is consistent 

with the EPCA provision that provides 

manufacturers 180 days from issuance of a new or 

amended test procedure to begin using that test 

procedure for representation of energy efficiency.’’ 

Continued 

Comments, data, and other 

information submitted to DOE 

electronically should be provided in 

PDF (preferred), Microsoft Word or 

Excel, WordPerfect, or text (ASCII) file 

format. Provide documents that are not 

secured, written in English and free of 

any defects or viruses. Documents 

should not contain special characters or 

any form of encryption and, if possible, 

they should carry the electronic 

signature of the author. 

Campaign form letters. Please submit 

campaign form letters by the originating 

organization in batches of between 50 to 

500 form letters per PDF or as one form 

letter with a list of supporters’ names 

compiled into one or more PDFs. This 

reduces comment processing and 

posting time. 

Confidential Business Information. 

According to 10 CFR 1004.11, any 

person submitting information that he 

or she believes to be confidential and 

exempt by law from public disclosure 

should submit via email two wellmarked 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. DOE will make its 

own determination about the 

confidential status of the information 

and treat it according to its 

determination. 

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). 

Case Number 2021–006 

Interim Waiver Order 

I. Background and Authority 

The Energy Policy and Conservation 

Act, as amended (‘‘EPCA’’),2 authorizes 

the U.S. Department of Energy (‘‘DOE’’) 

to regulate the energy efficiency of a 

number of consumer products and 

certain industrial equipment. (42 U.S.C. 

6291–6317). Title III, Part C 3 of EPCA, 

Public Law 94–163 (42 U.S.C. 6291– 

6309, as codified), added by the 

National Energy Conservation Policy 

Act, Public Law 95–619, sec. 441 (Nov. 

9, 1978), established the Energy 

Conservation Program for Certain 

Industrial Equipment, which sets forth a 

variety of provisions designed to 

improve energy efficiency for certain 

types of industrial equipment. Through 

amendments brought about by the 

Energy Independence and Security Act 

of 2007, Public Law 110–140, sec. 312 

(Dec. 19, 2007), this equipment includes 

walk-in coolers and walk-in freezers 

(collectively ‘‘walk-ins’’), the subject of 

this Interim Waiver Order. (42 U.S.C. 

6311(1)(G)). 

The energy conservation program 

under EPCA consists essentially of four 

parts: (1) Testing, (2) labeling, (3) 

Federal energy conservation standards, 

and (4) certification and enforcement 

procedures. Relevant provisions of 

EPCA include definitions (42 U.S.C. 

6311), energy conservation standards 

(42 U.S.C. 6313), test procedures (42 

U.S.C. 6314), labeling provisions (42 

U.S.C. 6315), and the authority to 

require information and reports from 

manufacturers (42 U.S.C. 6316). 

The Federal testing requirements 

consist of test procedures that 

manufacturers of covered equipment 

must use as the basis for: (1) Certifying 

to DOE that their equipment complies 

with the applicable energy conservation 

standards adopted pursuant to EPCA (42 

U.S.C. 6316(a); 42 U.S.C. 6295(s)), and 

(2) making representations about the 

efficiency of that equipment (42 U.S.C. 

6314(d)). Similarly, DOE must use these 

test procedures to determine whether 

the covered equipment complies with 

relevant standards promulgated under 

EPCA. (42 U.S.C. 6316(a); 42 U.S.C. 

6295(s)). 

Under 42 U.S.C. 6314, EPCA sets forth 

the criteria and procedures DOE is 

required to follow when prescribing or 

amending test procedures for covered 

equipment. EPCA requires that any test 

procedures prescribed or amended 

under this section must be reasonably 

designed to produce test results which 

reflect the energy efficiency, energy use 

or estimated annual operating cost of 

covered equipment during a 

representative average use cycle and 

requires that test procedures not be 

unduly burdensome to conduct. (42 

U.S.C.6314(a)(2)) The test procedure for 

walk-in refrigeration systems is 

contained in the Code of Federal 

Regulations (‘‘CFR’’) at 10 CFR part 431, 

subpart R, appendix C, Uniform Test 

Method for the Measurement of Net 

Capacity and AWEF of Walk-In Cooler 

and Walk-In Freezer Refrigeration 

Systems (‘‘Appendix C’’). 

Under 10 CFR 431.401, any interested 

person may submit a petition for waiver 

from DOE’s test procedure 

requirements. DOE will grant a waiver 

from the test procedure requirements if 

DOE determines either that the basic 

model for which the waiver was 

requested contains a design 

characteristic that prevents testing of the 

basic model according to the prescribed 

test procedures, or that the prescribed 

test procedures evaluate the basic model 

in a manner so unrepresentative of its 

true energy consumption characteristics 

as to provide materially inaccurate 

comparative data. 10 CFR 431.401(f)(2). 

A petitioner must include in its petition 

any alternate test procedures known to 

the petitioner to evaluate the 

performance of the product type in a 

manner representative of the energy 

consumption characteristics of the basic 

model. 10 CFR 431.401(b)(1)(iii). DOE 

may grant the waiver subject to 

conditions, including adherence to 

alternate test procedures. 10 CFR 

431.401(f)(2). 

As soon as practicable after the 

granting of any waiver, DOE will 

publish in the Federal Register a notice 

of proposed rulemaking to amend its 

regulations so as to eliminate any need 

for the continuation of such waiver. 10 

CFR 431.401(l). As soon thereafter as 

practicable, DOE will publish in the 

Federal Register a final rule to that 

effect. Id. 

The waiver process also provides that 

DOE may grant an interim waiver if it 

appears likely that the underlying 

petition for waiver will be granted and/ 

or if DOE determines that it would be 

desirable for public policy reasons to 

grant immediate relief pending a 

determination on the underlying 

petition for waiver. 10 CFR 

431.401(e)(2). Within one year of 

issuance of an interim waiver, DOE will 

either: (i) Publish in the Federal 

Register a determination on the petition 

for waiver; or (ii) publish in the Federal 

Register a new or amended test 

procedure that addresses the issues 

presented in the waiver. 10 CFR 

431.401(h)(1). 

If DOE ultimately denies the petition 

for waiver, or if the alternate test 

procedure specified in the interim 

waiver differs from the alternate test 

procedure specified by DOE in a 

subsequent Decision and Order, DOE 

will provide a period of 180 days before 

the manufacturer is required to use the 

DOE test procedure or the alternate test 

procedure specified in the Decision and 

Order to make representations of energy 

efficiency. 10 CFR 431.401(i).4 When 


jbell on DSKJLSW7X2PROD with NOTICES
43636 Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 

84 FR 18414, 18416 (May 1, 2019); (See 42 U.S.C. 

6293(c)(2)). In the final rule published December 

11, 2020, stated that it was maintaining the 180-day 

grace period as proposed. 85 FR 79802, 79813. As 

such, were a Decision and Order issued with an 

alternate test procedure that differed from that 

required under this interim waiver, beginning 180 

days following publication of the Decision and 

Order any representations made by the petitioner 

must fairly disclose the results of testing in 

accordance with the alternate test procedure 

specified by the final Order and the applicable 

requirements of 10 CFR part 429. 

5A petition submitted under 10 CFR 431.401 is 

considered ‘‘received’’ on the date it is received by 

DOE through DOE’s established email box for 

receipt of waiver petitions or, if delivered by mail, 

on the date the waiver petition is stamped as 

received by DOE. 10 CFR 431.401(e)(1)(iii). 

6A notation in the form ‘‘RefPlus, No. 1’’ 

identifies a written submission: (1) Made by 

RefPlus; and (2) recorded in document number 1 

that is filed in the docket of this petition for waiver 

(Docket No. EERE–2021–BT–WAV–0014) and 

available at www.regulations.gov/docket?D=EERE2021-BT-WAV-0014. 

7The petition did not identify any of the 

information contained therein as confidential 

business information. 

8The test procedure specifies the unit cooler 

refrigerant inlet condition in terms of a saturation 

temperature (the temperature at which it completes 

the condensation process in a condenser) and the 

subcooling temperature (additional reduction in 

temperature lower than the specified saturation 

temperature). For CO2, the critical temperature 

above which there cannot exist separate liquid and 

gas phases is below the saturation condition 

specified in the test procedure, hence the specified 

condition cannot be achieved. 

9Absolute pressure is the pressure measured 

relative to a complete vacuum; ‘‘psia’’ represents 

the absolute pressure in pounds per square inch. 

DOE amends the test procedure to 

address the issues presented in a 

waiver, the waiver will automatically 

terminate on the date on which use of 

that test procedure is required to 

demonstrate compliance. 10 CFR 

431.401(h)(3). 

II. RefPlus’s Petition for Waiver and 

Interim Waiver 

On June 2, 2021, DOE received 5 from 

RefPlus a petition for waiver and 

interim waiver from the test procedure 

for walk-in refrigeration systems set 

forth at 10 CFR part 431, subpart R, 

appendix C. (RefPlus, No. 1 at p. 1).6

DOE received an updated petition for 

waiver and interim waiver from RefPlus 

on July 12, 2021. (RefPlus, No. 2 at p. 

1). The updated petition specifies 

additional basic models to be 

considered under the waiver request. 

(RefPlus, No. 2 at pp. 2–5). Pursuant to 

10 CFR 431.401(b)(1)(iv), DOE has 

posted both petitions to the docket at, 

at: www.regulations.gov/docket/EERE2021-BT-WAV-0014 and has reproduced 

the most recent petition for waiver in 

this notice.7

RefPlus claims that the test conditions 

described in Table 15 and Table 16 of 

the Air-Conditioning, Heating, and 

Refrigeration Institute (‘‘AHRI’’) 

Standard 1250–2009, Standard for 

Performance Rating of Walk-In Coolers 

and Freezers (‘‘AHRI 1250–2009’’) (for 

walk-in refrigerator unit coolers and 

freezer unit coolers tested alone, 

respectively), as incorporated by 

Appendix C with modification, cannot 

be achieved by the specified basic 

models and are not consistent with the 

operation of RefPlus’s CO2 direct 

expansion unit coolers. RefPlus also 

stated that CO2 has a critical 

temperature of 87.8 °F,8 and thus the 

required liquid inlet saturation 

temperature of 105 °F and the required 

liquid inlet subcooling temperature of 9 

°F are not achievable, and that the test 

conditions should be more consistent 

with typical operating conditions for a 

transcritical CO2 booster system 

(RefPlus, No. 2, p. 5). 

The statements made by RefPlus 

reference the difference in 

thermodynamic properties between CO2

and other refrigerants. Many substances 

transition from a solid to a liquid to a 

gas at a given pressure as temperature 

increases. For example, a pure 

substance like water transitions from 

liquid to steam at a specific 

temperature, e.g. 212 °F, at atmospheric 

pressure. As heat is added during a 

liquid to gas transition, the temperature 

remains constant and the substance 

coexists as both liquid and vapor. 

Continuing to add heat converts more of 

the liquid to vapor at a constant 

temperature. The reverse occurs when 

heat is removed. However, the transition 

temperature depends on the pressure— 

the higher the pressure, the higher the 

transition temperature. This is a key 

principle in refrigeration systems, 

which operate at two pressure levels 

associated with two temperatures. A 

refrigerant absorbs heat when it is at a 

low temperature and pressure, 

converting to gas and cooling the 

surrounding space. At high temperature 

and pressure, the refrigerant transitions 

to a liquid while releasing heat to the 

environment. A compressor is used to 

raise a gas from low- high-pressure, and 

a throttle (pressure reduction device) is 

used to reduce the pressure once the 

refrigerant has been fully liquefied 

(condensed) at high pressure. 

All refrigerants have a ‘‘critical 

temperature’’ and an associated ‘‘critical 

pressure’’ above which liquid and vapor 

phases cannot coexist. Above this 

critical point, the refrigerant will be a 

gas and its temperature will increase or 

decrease as heat is added or removed. 

For conventional refrigerants, the 

critical temperature is never exceeded 

in typical refrigeration cycles. For 

example, R404A is a common 

refrigerant used in refrigeration systems 

and has a critical temperature of 161.7 

°F with an associated critical pressure of 

540.8 psia.9 However, CO2 behaves 

differently, with a critical temperature 

of 87.8 °F and an associated critical 

pressure of 1,072 psia. The refrigerant 

temperature must be somewhat higher 

than the ambient temperature in order 

to reject refrigeration cycle heat to the 

ambient environment. Ambient 

temperatures greater than 87.8 °F are 

common and the performance of many 

refrigeration and air conditioning 

systems are tested using a 95 °F ambient 

temperature, as indicated by the A test 

condition in AHRI 1250–2009 Section 5. 

Above the critical temperature and 

critical pressure, the CO2 refrigerant is 

in a supercritical state and heat is 

transferred to the environment. Since 

the temperature of the CO2 refrigerant 

ranges from supercritical to subcritical 

within the system, CO2 cycles are said 

to be ‘‘transcritical.’’ 

The transcritical nature of CO2

generally requires a more complex 

refrigeration cycle design to approach 

the efficiency of traditional refrigerants 

(i.e., R404A, R407A, R448A, etc.) during 

operation in high temperature 

conditions. To increase efficiency and 

prevent overheating, transcritical 

booster systems introduce (or use) 

multiple stages of compression and 

intercooling. CO2 is cooled in the gas 

cooler of a transcritical booster system, 

then expands through a high-pressure 

control valve and is delivered to a 

subcritical-pressure flash tank. In the 

flash tank, the refrigerant is in the 

subcritical phase and the liquid and 

vapor phases can be separated. In a CO2

booster system, subcooled liquid 

refrigerant from the flash tank supplies 

the unit cooler via expansion valves 

where the refrigerant is evaporated. The 

evaporated refrigerant is subsequently 

compressed up to gas cooler pressure to 

complete the cycle (Docket EERE–2021– 

BT–WAV–0014, No. 5). 

As noted, RefPlus requests an interim 

waiver from the existing DOE test 

procedure. DOE will review the petition 

for interim waiver within 45 business 

days of receipt of the petition. 10 CFR 

431.401(e)(1)(ii). If DOE does not notify 

the applicant of the disposition of the 

petition for interim waiver, in writing, 

within 45 business days of receipt of the 

petition, the interim waiver is granted 

utilizing the alternate test procedure 

requested in the petition. Id. DOE will 

grant an interim waiver if it appears 

likely that the petition for waiver will be 

granted, and/or if DOE determines that 

it would be desirable for public policy 


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Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 43637 

10See Notice of Decision and Order granting a 

waiver to HTPG (Case No. 2020–009; 86 FR 14887 

(Mar. 19, 2021)); Notice of Decision and Order 

granting a waiver to Hussmann (Case No. 2020–010; 

86 FR 24606 (May 7, 2021)); Notice of Decision and 

Order granting a waiver to KeepRite (Case No. 

2020–014; 86 FR 24603 (May 7, 2021)). 

reasons to grant immediate relief 

pending a determination of the petition 

for waiver. 10 CFR 431.401(e)(2). 

Based on the assertions in the 

petition, absent an interim waiver, the 

prescribed test procedure is not 

appropriate for RefPlus’s CO2 direct 

expansion unit coolers and the test 

conditions are not achievable. As 

discussed, CO2 refrigerant has a critical 

temperature of 87.8 °F and the current 

DOE test procedure calls for a liquid 

inlet saturation temperature of 105 °F. 

The inability to achieve test conditions 

for the stated basic models would result 

in economic hardship from loss of sales 

stemming from the inability of the DOE 

test procedure to address the operating 

conditions of RefPlus’s equipment. DOE 

has published decision and orders 

granting a waiver for other equipment 

relying on the same technology.10

III. Requested Alternate Test Procedure 

EPCA requires that manufacturers use 

DOE test procedures when making 

representations about the energy 

consumption and energy consumption 

costs of covered equipment. (42 U.S.C. 

6314(d)). Consistency is important when 

making representations about the energy 

efficiency of covered equipment, 

including when demonstrating 

compliance with applicable DOE energy 

conservation standards. Pursuant to 10 

CFR 431.401, and after consideration of 

public comments on the petition, DOE 

may establish in a subsequent Decision 

and Order an alternate test procedure 

for the basic models addressed by the 

Interim Waiver Order. 

RefPlus seeks to use an alternate test 

procedure to test and rate specific CO2

direct expansion unit cooler basic 

models. RefPlus’s suggested approach 

specifies using modified liquid inlet 

saturation and liquid inlet subcooling 

temperatures of 38 °F and 5 °F, 

respectively, for both walk-in 

refrigerator unit coolers and walk-in 

freezer unit coolers. (RefPlus, No. 2 at p. 

5). Additionally, RefPlus recommended 

that because the subject units are used 

in transcritical CO2 booster systems, the 

calculations in AHRI 1250–2009 section 

7.9 should be used to determine Annual 

Walk-in Efficiency Factor (‘‘AWEF’’) 

and net capacity for unit coolers 

matched to parallel rack systems as 

required under the DOE test procedure. 

(RefPlus, No. 2 at pp. 5–6). This section 

of AHRI 1250–2009 is prescribed by the 

DOE test procedure for determining 

AWEF for all unit coolers tested alone 

(see 10 CFR part 431, subpart R, 

appendix C, section 3.3.1). Finally, 

RefPlus also recommended that AHRI 

1250–2009 Table 17, EER for Remote 

Commercial Refrigerated Display 

Merchandisers and Storage Cabinets, 

should be used to determine power 

consumption of CO2 direct expansion 

unit cooler systems as required under 

the DOE test procedure (RefPlus, No. 2 

at p. 5). 

IV. Interim Waiver Order 

DOE has reviewed RefPlus’s 

application for an interim waiver, the 

alternate test procedure requested by 

RefPlus, and the websites and product 

specification sheets for the basic models 

listed in RefPlus’s petition. Based on 

this review, the suggested alternate test 

procedure appears to allow for the 

accurate measurement of the energy 

efficiency of the specified basic models, 

while alleviating the testing issues 

associated with RefPlus’s 

implementation of walk-in cooler and 

walk-in freezer testing for these basic 

models. Review of the CO2 refrigeration 

market confirms that the testing 

conditions and approach suggested by 

RefPlus would be representative for 

operation of a unit cooler used in a 

transcritical CO2 booster system (Docket 

EERE–2021–BT–WAV–0014, No. 4). 

Specifically, CO2 that is cooled in the 

gas cooler of a transcritical booster 

system expands through a high-pressure 

control valve that delivers CO2 to a 

subcritical-pressure flash tank, where 

liquid and vapor phases of the 

refrigerant are separated. The liquid is 

then split, and the unit coolers receive 

the refrigerant at the same condition, 

consistent with the use of the same 

liquid inlet saturation temperature for 

both the medium- and low-temperature 

systems in RefPlus’s suggested test 

approach. Calculations on other external 

CO2 refrigeration system designs in the 

market indicate that the 38 °F liquid 

unit cooler inlet saturation temperature 

suggested by RefPlus is representative of 

CO2 booster systems (Docket EERE– 

2021–BT–WAV–0014, No. 5). Regarding 

use of the EER values in AHRI 1250– 

2009 Table 17 to determine the 

representative compressor power 

consumption for CO2 unit cooler 

systems, research into the performance 

of different configurations of CO2

booster systems shows that enhanced 

CO2 cycles (like those used in 

transcritical booster systems) can match 

conventional refrigerants in average 

annual efficiency (Docket EERE–2021– 

BT–WAV–0014, No. 3). The findings 

from this research, along with the other 

collective factors previously noted, 

justify the use of the EER values in 

AHRI 1250–2009 Table 17 for 

determining the power consumption for 

CO2 booster system evaporators, despite 

these EER values being initially 

established for systems using 

conventional refrigerants. Consequently, 

DOE has determined that RefPlus’s 

petition for waiver likely will be 

granted. Furthermore, DOE has 

determined that it is desirable for public 

policy reasons to grant RefPlus 

immediate relief pending a 

determination of the petition for waiver. 

For the reasons stated, it is ordered 

that: 

(1) RefPlus must test and rate the 

following RefPlus-branded, CO2 direct 

expansion unit cooler basic models with 

the alternate test procedure set forth in 

paragraph (2). 

Basic Model Numbers: 

BILLING CODE 6450–01–P 


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43638 Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 


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Basic Model Numbers: 

LAA-0607-1 LAE-0577-2 LAG-0577-1 LAH-0577-1 LPA-0607-1 LPE-0577-2 LPG-0577-1 LPH-0577-1 

LAA-0607-2 LAE-0577-5 LAG-0577-2 LAH-0577-2 LPA-0607-2 LPE-0577-5 LPG-0577-2 LPH-0577-2 

LAA-0757-1 LAE-0727-2 LAG-0727-1 LAH-0727-1 LPA-0707-1 LPE-0677-2 LPG-0677-1 LPH-0677-1 

LAA-0757-2 LAE-0727-5 LAG-0727-2 LAH-0727-2 LPA-0707-2 LPE-0677-5 LPG-0677-2 LPH-0677-2 

LAA-0957-1 LAE-0907-2 LAG-0907-1 LAH-0907-1 LPA-0807-1 LPE-0767-2 LPG-0767-1 LPH-0767-1 

LAA-0957-2 LAE-0907-5 LAG-0907-2 LAH-0907-2 LPA-0807-2 LPE-0767-5 LPG-0767-2 LPH-0767-2 

LAA-1207-1 LAE-1147-2 LAG-1147-1 LAH-1147-1 LPA-1007-1 LPE-0957-2 LPG-0957-1 LPH-0957-1 

LAA-1207-2 LAE-1147-5 LAG-1147-2 LAH-1147-2 LPA-1007-2 LPE-0957-5 LPG-0957-2 LPH-0957-2 

LAA-1507-1 LAE-1437-2 LAG-1437-1 LAH-1437-1 LPA-1207-1 LPE-1157-2 LPG-1157-1 LPH-1157-1 

LAA-1507-2 LAE-1437-5 LAG-1437-2 LAH-1437-2 LPA-1207-2 LPE-1157-5 LPG-1157-2 LPH-1157-2 

LAA-1807-1 LAE-1707-2 LAG-1707-1 LAH-1707-1 LPA-1607-1 LPE-1527-2 LPG-1527-1 LPH-1527-1 

LAA-1807-2 LAE-1707-5 LAG-1707-2 LAH-1707-2 LPA-1607-2 LPE-1527-5 LPG-1527-2 LPH-1527-2 

LAA-2407-1 LAE-2307-2 LAG-2307-1 LAH-2307-1 LPA-2007-1 LPE-1907-2 LPG-1907-1 LPH-1907-1 

LAA-2407-2 LAE-2307-5 LAG-2307-2 LAH-2307-2 LPA-2007-2 LPE-1907-5 LPG-1907-2 LPH-1907-2 

LAA-2807-1 LAE-2707-2 LAG-2707-1 LAH-2707-1 LPA-2107-1 LPE-2007-2 LPG-2007-1 LPH-2007-1 

LAA-2807-2 LAE-2707-5 LAG-2707-2 LAH-2707-2 LPA-2107-2 LPE-2007-5 LPG-2007-2 LPH-2007-2 

LAA-3007-1 LAE-2867-2 LAG-2867-1 LAH-2867-1 LPA-2407-1 LPE-2307-2 LPG-2307-1 LPH-2307-1 

LAA-3007-2 LAE-2867-5 LAG-2867-2 LAH-2867-2 LPA-2407-2 LPE-2307-5 LPG-2307-2 LPH-2307-2 

LAA-3607-1 LAE-3437-2 LAG-3437-1 LAH-3437-1 LPA-2807-1 LPE-2707-2 LPG-2707-1 LPH-2707-1 

LAA-3607-2 LAE-3437-5 LAG-3437-2 LAH-3437-2 LPA-2807-2 LPE-2707-5 LPG-2707-2 LPH-2707-2 

LAA-4207-1 LAE-4007-2 LAG-4007-1 LAH-4007-1 LPA-3507-1 LPE-3347-2 LPG-3347-1 LPH-3347-1 
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 43639 


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LAA-4207-2 LAE-4007-5 LAG-4007-2 LAH-4007-2 LPA-3507-2 LPE-3347-5 LPG-3347-2 LPH-3347-2 

LAA-4607-1 LAE-4387-2 LAG-4387-1 LAH-4387-1 LPA-4207-1 LPE-4007-2 LPG-4007-1 LPH-4007-1 

LAA-4607-2 LAE-4387-5 LAG-4387-2 LAH-4387-2 LPA-4207-2 LPE-4007-5 LPG-4007-2 LPH-4007-2 

LSA-0457-1 LSE-0437-2 LSR-0437-1 LST-0437-1 LYA-0707-1 LYA-3607-2 LYG-0707-1 LYH-0707-1 

LSA-0457-2 LSE-0437-5 LSR-0437-2 LST-0437-2 LVA-0707-2 LVA-3607-5 LVG-0707-2 LVH-0707-2 

LSA-0557-1 LSE-0527-2 LSR-0527-1 LST-0527-1 LVA-0707-5 LVA-4207-1 LVG-0807-1 LVH-0807-1 

LSA-0557-2 LSE-0527-5 LSR-0527-2 LST-0527-2 LVA-0807-1 LVA-4207-2 LVG-0807-2 LVH-0807-2 

LSA-0657-1 LSE-0627-2 LSR-0627-1 LST-0627-1 LVA-0807-2 LVA-4207-5 LVG-0907-1 LVH-0907-1 

LSA-0657-2 LSE-0627-5 LSR-0627-2 LST-0627-2 LVA-0807-5 LVE-0707-2 LVG-0907-2 LVH-0907-2 

LSA-0757-1 LSE-0727-2 LSR-0727-1 LST-0727-1 LVA-0907-1 LVE-0707-5 LVG-1207-1 LVH-1207-1 

LSA-0757-2 LSE-0727-5 LSR-0727-2 LST-0727-2 LVA-0907-2 LVE-0807-2 LVG-1207-2 LVH-1207-2 

LSA-0927-1 LSE-0887-2 LSR-0887-1 LST-0887-1 LVA-0907-5 LVE-0807-5 LVG-1507-1 LVH-1507-1 

LSA-0927-2 LSE-0887-5 LSR-0887-2 LST-0887-2 LVA-1207-1 LVE-0907-2 LVG-1507-2 LVH-1507-2 

LSA-1087-1 LSE-1037-2 LSR-1037-1 LST-1037-1 LVA-1207-2 LVE-0907-5 LVG-1907-1 LVH-1907-1 

LSA-1087-2 J ,SE-1017-5 LSR-1017-2 LST-1017-2 LVA-1207-5 LVE-1207-2 J ,VG-1907-2 J ,V]J. 1907-2 

LSA-1307-1 LSE-1247-2 LSR-1247-1 LST-1247-1 LVA-1507-1 LVE-1207-5 LVG-2407-1 LVH-2407-1 

LSA-1107-2 J ,SE-1247-5 LSR-1247-2 LST-1247-2 LVA-1507-2 LVE-1507-2 J ,VG-2407-2 J ,VJJ-2407-2 

LSA-1407-1 LSE-1337-2 LSR-1337-1 LST-1337-1 LVA-1507-5 LVE-1507-5 LVG-2707-1 LVH-2707-1 

LSA-1407-2 LSE-1337-5 LSR-1337-2 LST-1337-2 LVA-1907-1 LVE-1907-2 LVG-2707-2 L VII-2707-2 

LSA-1607-1 LSE-1527-2 LSR-1527-1 LST-1527-1 LVA-1907-2 LVE-1907-5 LVG-3007-1 LVH-3007-1 

LSA-1607-2 LSE-1527-5 LSR-1527-2 LST-1527-2 LYA-1907-5 LYE-2407-2 LYG-3007-2 LYH-3007-2 

LSA-1907-1 LSE-1807-2 LSR-1807-1 LST-1807-1 LVA-2407-1 LVE-2407-5 LVG-3607-1 LVH-3607-1 

LSA-1907-2 LSE-1807-5 LSR-1807-2 LST-1807-2 LYA-2407-2 LYE-2707-2 LYG-3607-2 LYH-3607-2 

LSA-2307-1 LSE-2207-2 LSR-2207-1 LST-2207-1 LVA-2407-5 LVE-2707-5 LVG-4207-1 LVH-4207-1 

LSA-2307-2 LSE-2207-5 LSR-2207-2 LST-2207-2 LVA-2707-1 LVE-2707-8 LVG-4207-2 LVH-4207-2 

LSA-2607-1 LSE-2407-2 LSR-2407-1 LST-2407-1 LVA-2707-2 LVE-2707-9 

LSA-2607-2 LSE-2407-5 LSR-2407-2 LST-2407-2 LVA-2707-5 LVE-3007-2 

LSA-3207-1 LSE-3007-2 LSR-3007-1 LST-3007-1 LVA-3007-1 LVE-3007-5 

LSA-3207-2 LSE-3007-5 LSR-3007-2 LST-3007-2 LVA-3007-2 LVE-3607-2 

LSA-3907-1 LSE-3707-2 LSR-3707-1 LST-3707-1 LVA-3007-5 LVE-3607-5 

LSA-3907-2 LSE-3707-5 LSR-3707-2 LST-3707-2 LVA-3607-1 LVE-4207-2 

LVE-4207-5 

EJA-02600A-5 EJE-02500A-5 EJG-02600A-5 EJII-02600A-5 EJR-02600A-5 EJT-02600A-5 EQA-04900A-5 EQE-04800A-5 

EJA-02600A-9 EJE-02500A-9 EJG-02600A-9 EJH-02600A-9 EJR-02600A-9 EJT-02600A-9 EQA-04900A-9 EQE-04800A-9 

EJA-03200A-5 EJE-031 00A-5 EJG-03200A-5 EJH-03200A-5 EJR-03200A-5 EJ'J'-03200A-5 EQA-05800A-5 EQE-05700A-5 

EJA-03200A-9 EJE-031 00A-9 EJG-03200A-9 EJH-03200A-9 EJR-03200A-9 EJT-03200A-9 EQA-05800A-9 EQE-05700A-9 

EJA-03800A-5 EJE-03700A-5 EJG-03800A-5 EJH-03800A-5 EJR-03800A-5 EJ'J'-03800A-5 EQA-06800A-5 EQE-06700A-5 

EJA-03800A-9 EJE-03700A-9 EJG-03800A-9 EJH-03800A-9 EJR-03800A-9 EJT-03800A-9 EQA-06800A-9 EQE-06700A-9 

EJA-05200A-5 EJE-051 00A-5 EJG-05200A-5 EJH-05200A-5 EJR-05200A-5 EJ'J'-05200A-5 EQA-09900A-5 EQE-09600A-5 

EJA-05200A-9 EJE-05 I 00A-9 EJG-05200A-9 EJH-05200A-9 EJR-05200A-9 EJT-05200A-9 EQA-09900A-9 EQE-09600A-9 

EJA-06300A-5 EJE-06200A-5 EJG-06300A-5 EJH-06300A-5 EJR-06300A-5 EJT-06300A-5 EQA-11600A-5 EQE-llS00A-5 

EJA-06300A-9 EJE-06200A-9 EJG-06300A-9 EJH-06300A-9 EJR-06300A-9 EJT-06300A-9 EQA-l 1600A-9 EQE-l lS00A-9 

EJA-07700A-5 EJE-07600A-5 EJG-07700A-5 EJH-07700A-5 EJR-07700A-5 EJT-07700A-5 EQA-13600A-5 EQE-13400A-5 

EJA-07700A-9 EJE-07600A-9 EJG-07700A-9 EJH-07700A-9 EJR-07700A-9 EJT-07700A-9 EQA-13600A-9 EQE-13400A-9 

EJA-09500A-5 EJE-09300A-5 EJG-09500A-5 EJH-09500A-5 EJR-09500A-5 EJT-09500A-5 EQA-l 7500A-5 EQE-l 7200A-5 

EJA-09500A-9 EJE-09300A-9 EJG-09500A-9 EJH-09500A-9 EJR-09500A-9 EJT-09500A-9 EQA-l 7500A-9 EQE-17200A-9 

EJA-11600A-5 EJE-11500A-5 EJG-11600A-5 EJH-l 1600A-5 EJR-11600A-5 EJT-116001\-5 EQA-20400A-5 EQE-20300A-5 
43640 Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 

(2) The alternate test procedure for the 

RefPlus basic models identified in 

paragraph (1) of this Interim Waiver 

Order is the test procedure for walk-in 

cooler and walk-in freezer refrigeration 

systems prescribed by DOE at 10 CFR 


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EJA-11600A-9 EJE-11500A-9 EJG-11600A-9 EJH-11600A-9 EJR-11600A-9 EJT-11600A-9 EQA-20400A-9 EQE-20300A-9 

EJA-12700A-5 EJE-15300A-5 EJG-12700A-5 EJH-12700A-5 EJR-12700A-5 EJT-12700A-5 EQA-23400A-5 EQE-26800A-5 

EJA-12700A-9 EJE-15300A-9 EJG-12700A-9 EJH-12700A-9 EJR-12700A-9 EJT-12700A-9 EQA-23400A-9 EQE-26800A-9 

EJA-15400A-5 EJE-19000A-5 EJG-15400A-5 EJH-15400A-5 EJR-15400A-5 EJT-15400A-5 EQA-26500A-5 EQE-33700A-5 

EJA-15400A-9 EJE-19000A-9 EJG-15400A-9 EJH-15400A-9 EJR-15400A-9 EJT-15400A-9 EQA-26500A-9 EQE-33700A-9 

EJA-19400A-5 EJG-19400A-5 EJH-19400A-5 EJR-19400A-5 EJT-19400A-5 EQA-34200A-5 

EJA-19400A-9 EJG-19400A-9 EJH-19400A-9 EJR-19400A-9 EJT-19400A-9 EQA-34200A-9 

EJA-2IO00A-5 EJG-2IO00A-5 EJH-2IO00A-5 EJR-2IO00A-5 EJT-2IO00A-5 EQA-44400A-5 

EJA-2IO00A-9 EJG-21000A-9 EJH-2IO00A-9 EJR-2IO00A-9 EJT-2IO00A-9 EQA-44400A-9 

EQG-04900A-5 EQH-04900A-5 EQR-04900A-5 EQT-04900A-5 EKA-1400-2 EKE-2200-5 EKR-4000-5 EMA-02150-2 

EQG-04900A-9 EQH-04900A-9 EQR-04900A-9 EQT-04900A-9 EKA-1600-2 EKE-2900-2 EKR-5000-2 EMA-02150-5 

EQG-05800A-5 EQH-05800A-5 EQR-05800A-5 EQT-05800A-5 EKA-1800-2 EKE-2900-5 EKR-5000-5 EMA-02550-2 

EQG-05800A-9 EQII-05800A-9 EQR-05800A-9 EQT-05800A-9 EKA-2100-2 EKE-3400-2 EKR-6000-2 EMA-02550-5 

EQG-06800A-5 EQH-06800A-5 EQR-06800A-5 EQT-06800A-5 EKA-2100-5 EKE-3400-5 EKR-6000-5 EMA-03000-2 

EQG-06800A-9 EQH-06800A-9 EQR-06800A-9 EQT-06800A-9 EKA-2400-2 EKE-4000-2 EKT-1300-2 EMA-03000-5 

EQG-09900A-5 EQH-09900A-5 EQR-09900A-5 EQT-09900A-5 EKA-2400-5 EKE-4000-5 EKT-1500-2 EMA-04300-2 

EQG-09900A-9 EQH-09900A-9 EQR-09900A-9 EQT-09900A-9 EKA-3000-2 EKE-5000-2 EKT-1700-2 EMA-04300-5 

EQG-11600A-5 EQH-11600A-5 EQR-11600A-5 EQT-I 1600A-5 EKA-3000-5 EKE-5000-5 EKT-1700-5 EMA-05100-2 

EQG-11600A-9 EQH-11600A-9 EQR-11600A-9 EQT-11600A-9 EKA-3600-2 EKE-6000-2 EKT-2000-2 EMA-05100-5 

EQG-13600A-5 EQH-13600A-5 EQR-13600A-5 EQT-13600A-5 EKA-3600-5 EKE-6000-5 EKT-2000-5 EMA-06000-2 

EQG-13600A-9 EQH-13600A-9 EQR-13600A-9 EQT-13600A-9 EKA-4200-2 EKR-1300-2 EKT-2200-2 EMA-06000-5 

EQG-17500A-5 EQII-17500A-5 EQR-17500A-5 EQT-17500A-5 EKA-4200-5 EKR-1500-2 EKT-2200-5 EMA-07650-2 

EQG-17500A-9 EQH-17500A-9 EQR-17500A-9 EQT-17500A-9 EKA-5400-2 EKR-1700-2 EKT-2900-2 EMA-07650-5 

EQG-20400A-5 EQH-20400A-5 EQR-20400A-5 EQT-20400A-5 EKA-5400-5 EKR-1700-5 EKT-2900-5 EMA-09000-2 

EQG-20400A-9 EQII-20400A-9 EQR-20400A-9 EQT-20400A-9 EKA-6300-2 EKR-2000-2 EKT-3400-2 EMA-09000-5 

EQG-23400A-5 EQH-23400A-5 EQR-23400A-5 EQT-23400A-5 EKA-6300-5 EKR-2000-5 EKT-3400-5 EMA-10200-2 

EQG-23400A-9 EQH-23400A-9 EQR-23400A-9 EQT-23400/\-9 EKE-1300-2 EKR-2200-2 EKT-4000-2 EMA-10200-5 

EQG-26500A-5 EQII-26500A-5 EQR-26500A-5 EQT-26500A-5 EKE-1500-2 EKR-2200-5 EKT-4000-5 EMA-12000-2 

EQG-26500A-9 EQH-26500A-9 EQR-26500A-9 EQT-26500A-9 EKE-1700-2 EKR-2900-2 EKT-5000-2 EMA-12000-5 

EQG-34200A-5 EQH-34200A-5 EQR-34200A-5 EQT-34200A-5 EKE-1700-5 EKR-2900-5 EKT-5000-5 EMA-16100-5 

EQG-34200A-9 EQII-34200A-9 EQR-34200A-9 EQT-34200A-9 EKE-2000-2 EKR-3400-2 EKT-6000-2 

EQG-44400A-5 EQH-44400A-5 EQR-44400A-5 EQT-44400A-5 EKE-2000-5 EKR-3400-5 EKT-6000-5 

EQG-44400A-9 EQH-44400A-9 EQR-44400A-9 EQT-44400A-9 EKE-2200-2 EKR-4000-2 

EME-02000-2 EMF.-07200-5 EMG-04000-2 F.MG-11600-5 EMH-07200-2 F,\,fR-02900-5 F.MR-11600-2 EMT-05800-5 

EME-02000-5 EME-08700-2 EMG-04000-5 EMH-02000-2 EMH-07200-5 E\.iR-04000-2 EMR-11600-5 EMT-07200-2 

EME-02400-2 EME-08700-5 EMG-04800-2 EMII-02000-5 EMII-08700-2 E\.iR-04000-5 EMT-02000-2 EMT-07200-5 

EME-02400-5 EME-09600-2 EMG-04800-5 EMH-02400-2 EMH-08700-5 E\.iR-04800-2 EMT-02000-5 EMT-08700-2 

EME-02900-2 EME-09600-5 EMG-05800-2 EMH-02400-5 EMH-09600-2 E\.iR-04800-5 EMT-02400-2 EMT-08700-5 

EME-02900-5 EME-11600-2 EMG-05800-5 EMH-02900-2 EMH-09600-5 E\.IR-05800-2 EMT-02400-5 EMT-09600-2 

EME-04000-2 EME-11600-5 EMG-07200-2 EMH-02900-5 EMH-11600-2 E\.IR-05800-5 EMT-02900-2 EMT-09600-5 

EME-04000-5 EMG-02000-2 EMG-07200-5 EMH-04000-2 EMH-11600-5 E\.iR-07200-2 EMT-02900-5 EMT-11600-2 

EME-04800-2 EMG-02000-5 EMG-08700-2 EMH-04000-5 EMR-02000-2 E\.IR-07200-5 EMT-04000-2 EMT-11600-5 

EME-04800-5 EMG-02400-2 EMG-08700-5 F.MH-04800-2 EMR-02000-5 F,\,fR-08700-2 F.MT-04000-5 

EME-05800-2 EMG-02400-5 EMG-09600-2 EMH-04800-5 EMR-02400-2 E\.iR-08700-5 EMT-04800-2 

EME-05800-5 EMG-02900-2 EMG-09600-5 EMH-05800-2 EMR-02400-5 E\.IR-09600-2 EMT-04800-5 

EME-07200-2 EMG-02900-5 EMG-11600-2 F.MH-05800-5 EMR-02900-2 F,\,fR-09600-5 F.MT-05800-2 
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 43641 

part 431, subpart R, appendix C 

(‘‘Appendix C’’), except that the liquid 

inlet saturation temperature test 

condition and liquid inlet subcooling 

temperature test condition shall be 

modified to 38 °F and 5 °F, respectively, 

for both walk-in refrigerator unit coolers 

and walk-in freezer unit coolers, as 

detailed below. All other requirements 

of Appendix C and DOE’s regulations 

remain applicable. 

In Appendix C, under section 3.1. 

General modifications: Test Conditions 

and Tolerances, revise section 3.1.5., to 

read as follows: 

3.1.5. Tables 15 and 16 shall be 

modified to read as follows: 


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TABLE 15-REFRIGERATOR UNIT COOLER 

Unit Unit 

cooler cooler air 

air entering Liquid 

entering relative Saturated inlet Liquid inlet 

Test dry-bulb, humidity, suction saturation subcooling Compressor 

description OF % temp, °F temp, °F temp, °F capacity Test ob.iective 

Off Cycle 35 <50 - - - Compressor Measure fan 

Fan Power Off input power 

during 

compressor off 

cycle. 

Refrigeration 35 <50 25 38 5 Compressor Determine Net 

Capacity On Refrigeration 

Suction A Capacity of Unit 

Cooler. 

Note: Superheat to be set according to equipment specification in equipment or installation 

manual. If no superheat specification is given, a default superheat value of 6.5 °F shall be used. 

The superheat setting used in the test shall be reported as part of the standard rating. 
43642 Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 

(3) Representations. RefPlus may not 

make representations about the energy 

efficiency of a basic model listed in 

paragraph (1) for compliance, 

marketing, or other purposes unless that 

basic model has been tested in 

accordance with the provisions set forth 

in this alternate test procedure and such 

representations fairly disclose the 

results of such testing. 

(4) This Interim Waiver Order shall 

remain in effect according to the 

provisions of 10 CFR 431.401. 

(5) This Interim Waiver Order is 

issued on the condition that the 

statements, representations, test data, 

and documentary materials provided by 

RefPlus are valid. If RefPlus makes any 

modifications to the controls or 

configurations of a basic model subject 

to this Interim Waiver Order, such 

modifications will render the waiver 

invalid with respect to that basic model, 

and RefPlus will either be required to 

use the current Federal test method or 

submit a new application for a test 

procedure waiver. DOE may rescind or 

modify this waiver at any time if it 

determines the factual basis underlying 

the petition for the Interim Waiver 

Order is incorrect, or the results from 

the alternate test procedure are 

unrepresentative of the basic model’s 

true energy consumption characteristics. 

10 CFR 431.401(k)(1). Likewise, RefPlus 

may request that DOE rescind or modify 

the Interim Waiver Order if RefPlus 

discovers an error in the information 

provided to DOE as part of its petition, 

determines that the interim waiver is no 

longer needed, or for other appropriate 

reasons. 10 CFR 431.401(k)(2). 

(6) Issuance of this Interim Waiver 

Order does not release RefPlus from the 

applicable requirements set forth at 10 

CFR part 429. 

DOE makes decisions on waivers and 

interim waivers for only those basic 

models specifically set out in the 

petition, not future models that may be 

manufactured by the petitioner. RefPlus 

may submit a new or amended petition 

for waiver and request for grant of 

interim waiver, as appropriate, for 

additional basic models of CO2 direct 

expansion unit coolers. Alternatively, if 

appropriate, RefPlus may request that 

DOE extend the scope of a waiver or an 

interim waiver to include additional 

basic models employing the same 

technology as the basic model(s) set 

forth in the original petition consistent 

with 10 CFR 431.401(g). 

Signing Authority 

This document of the Department of 

Energy was signed on August 3, 2021, 

by Kelly Speakes-Backman, Principal 

Deputy Assistant Secretary and Acting 

Assistant Secretary for Energy Efficiency 

and Renewable Energy, pursuant to 

delegated authority from the Secretary 

of Energy. That document with the 

original signature and date is 

maintained by DOE. For administrative 

purposes only, and in compliance with 

requirements of the Office of the Federal 

Register, the undersigned DOE Federal 

Register Liaison Officer has been 

authorized to sign and submit the 

document in electronic format for 

publication, as an official document of 

the Department of Energy. This 

administrative process in no way alters 


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TABLE 16-FREEZER UNIT COOLER 

Unit 

Unit cooler air 

cooler air entering Liquid Liquid 

entering relative Saturated inlet inlet 

Test dry-bulb, humidity, suction saturation subcooling Compressor Test 

description OF % temp, °F temp, °F temp, °F capacity objective 

Off Cycle -10 <50 - - - Compressor Off Measure fan 

Fan Power input power 

during 

compressor 

off cycle. 

Refrigeration -10 <50 -20 38 5 Compressor On Determine 

Capacity Net 

Suction A Refrigeration 

Capacity of 

!Unit Cooler. 

Defrost -10 Various - - - Compressor Off Test 

according to 

k<\.ppendix C 

Section Cl 1. 

Note: Superheat to be set according to equipment specification in equipment or installation 

manual. If no superheat specification is given, a default superheat value of 6.5 °F shall be used. 

The superheat setting used in the test shall be reported as part of the standard rating. 
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 43643 

the legal effect of this document upon 

publication in the Federal Register. 

Signed in Washington, DC, on August 5, 

2021. 

Treena V. Garrett, 

Federal Register Liaison Officer, U.S. 

Department of Energy. 

Application for Interim Waiver 

Request for Interim Waiver from a 

DOE test procedure pursuant to 

provisions described in 10 CFR 431.401 

for the following product on the 

grounds that ‘‘the basic model contains 

one or more design characteristics that 

prevent testing of the basic model 

according to the prescribed test 

procedures.’’ 

CO2 Direct Expansion Unit Coolers in 

Medium and Low Temperature 

The design characteristics 

constituting the grounds for the Interim 

Waiver Application: 

• Appendix C to Subpart R of Part 

431—Uniform Test Method for the 

Measurement of Net Capacity and 

AWEF of Walk-in Cooler and Walk-in 

Freezer Refrigeration Systems specifies 

that unit coolers tested alone use the 

test procedures described in AHRI 

1250–2009. Table 15 and Table 16 of 

AHRI 1250–2009 are as follows: 


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Unit Unit 

cooler cooler air 

air entering Liquid 

entering relative Saturated inlet Liquid inlet 

Test dry-bulb, humidity, suction saturation subcooling Compressor Test 

description OF % temp, °F temp, °F temp, °F capacity objective 

Off Cycle Fan 35 <50 - - - Compressor Measure fan 

Power Off input power 

during 

compressor of1 

cycle. 

Refrigeration 35 <50 25 105 9 Compressor Determine Net 

Capacity On Refrigeration 

Suction A Capacity of 

Unit Cooler. 

Refrigeration 35 <50 20 105 9 Compressor Determine Net 

Capacity On Refrigeration 

Suction B Capacity of 

Unit Cooler. 
43644 Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 

• CO2 refrigerant has a critical 

temperature of 87.8 °F thus the liquid 

inlet saturation temperature of 105 °F 

and the liquid inlet subcooling 

temperature of 9 °F as specified in Table 

15 and Table 16 are not achievable. 

• The test condition values need to be 

more inline with typical operating 

conditions for a CO2 refrigeration 

application 


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Unit Unit 

cooler cooler air 

air entering Liquid 

entering relative Saturated inlet Liquid inlet 

Test dry-bulb, humidity, suction saturation subcooling Compressor Test 

description OF % temp, °F temp, °F temp, °F capacity objective 

Off Cycle Fan -10 <50 - - - Compressor Measure fan 

Power Off input power 

during 

compressor of1 

cycle. 

Refrigeration -10 <50 -20 105 9 Compressor Determine Net 

Capacity On Refrigeration 

Suction A Capacity of 

Unit Cooler. 

Refrigeration -10 <50 -26 105 9 Compressor Determine Net 

Capacity On Refrigeration 

Suction B Capacity of 

Unit Cooler. 

Defrost -10 Various - - - Compressor Test according 

Off to Appendix C 

Section C11. 

LAA-0607-1 LAE-0577-2 LAG-0577-1 LAH-0577-1 LPA-0607-1 LPE-0577-2 LPG-0577-1 LPH-0577-1 

LAA-0607-2 LAE-0577-5 LAG-0577-2 LAH-0577-2 LPA-0607-2 LPE-0577-5 LPG-0577-2 LPH-0577-2 

LAA-0757-1 LAE-0727-2 LAG-0727-1 LAH-0727-1 LPA-0707-1 LPE-0677-2 LPG-0677-1 LPH-0677-1 

LAA-0757-2 LAE-0727-5 LAG-0727-2 LAH-0727-2 LPA-0707-2 LPE-0677-5 LPG-0677-2 LPH-0677-2 

LAA-0957-1 LAE-0907-2 LAG-0907-1 LAH-0907-1 LPA-0807-1 LPE-0767-2 LPG-0767-1 LPH-0767-1 

LAA-0957-2 LAE-0907-5 LAG-0907-2 LAH-0907-2 LPA-0807-2 LPE-0767-5 LPG-0767-2 LPH-0767-2 

LAA-1207-1 LAE-1147-2 LAG-1147-1 LAH-1147-1 LPA-1007-1 LPE-0957-2 LPG-0957-1 LPH-0957-1 

LAA-1207-2 LAE-1147-5 LAG-1147-2 LAH-1147-2 LPA-1007-2 LPE-0957-5 LPG-0957-2 LPH-0957-2 

LAA-1507-1 LAE-1437-2 LAG-1437-1 LAH-1437-1 LPA-1207-1 LPE-1157-2 LPG-1157-1 LPH-1157-1 

LAA-1507-2 LAE-1437-5 LAG-1437-2 LAH-1437-2 LPA-1207-2 LPE-1157-5 LPG-1157-2 LPH-1157-2 

LAA-1807-1 LAE-1707-2 LAG-1707-1 LAH-1707-1 LPA-1607-1 LPE-1527-2 LPG-1527-1 LPH-1527-1 

LAA-1807-2 LAE-1707-5 LAG-1707-2 LAH-1707-2 LPA-1607-2 LPE-1527-5 LPG-1527-2 LPH-1527-2 

LAA-2407-1 LAE-2307-2 LAG-2307-1 LAH-2307-1 LPA-2007-1 LPE-1907-2 LPG-1907-1 LPH-1907-1 

LAA-2407-2 LAE-2307-5 LAG-2307-2 LAH-2307-2 LPA-2007-2 LPE-1907-5 LPG-1907-2 LPH-1907-2 

LAA-2807-1 LAE-2707-2 LAG-2707-1 LAH-2707-1 LPA-2107-1 LPE-2007-2 LPG-2007-1 LPH-2007-1 

LAA-2807-2 LAE-2707-5 LAG-2707-2 LAH-2707-2 LPA-2107-2 LPE-2007-5 LPG-2007-2 LPH-2007-2 
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 43645 


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LAA-3007-1 LAE-2867-2 LAG-2867-1 LAH-2867-1 LPA-2407-1 LPE-2307-2 LPG-2307-1 LPH-2307-1 

LAA-3007-2 LAE-2867-5 LAG-2867-2 LAH-2867-2 LPA-2407-2 LPE-2307-5 LPG-2307-2 LPH-2307-2 

LAA-3607-1 LAE-3437-2 LAG-3437-1 LAH-3437-1 LPA-2807-1 LPE-2707-2 LPG-2707-1 LPH-2707-1 

LAA-3607-2 LAE-3437-5 LAG-3437-2 LAH-3437-2 LPA-2807-2 LPE-2707-5 LPG-2707-2 LPH-2707-2 

LAA-4207-1 LAE-4007-2 LAG-4007-1 LAH-4007-1 LPA-3507-1 LPE-3347-2 LPG-3347-1 LPH-3347-1 

LAA-4207-2 LAE-4007-5 LAG-4007-2 LAH-4007-2 LPA-3507-2 LPE-3347-5 LPG-3347-2 LPH-3347-2 

LAA-4607-1 LAE-4387-2 LAG-4387-1 LAH-4387-1 LPA-4207-1 LPE-4007-2 LPG-4007-1 LPH-4007-1 

LAA-4607-2 LAE-4387-5 LAG-4387-2 LAH-4387-2 LPA-4207-2 LPE-4007-5 LPG-4007-2 LPH-4007-2 

LSA-0457-1 LSE-0437-2 LSR-0437-1 LST-0437-1 LVA-0707-1 LVA-3607-2 LVG-0707-1 LVH-0707-1 

LSA-0457-2 LSE-0437-5 LSR-0437-2 LST-0437-2 LVA-0707-2 LVA-3607-5 LVG-0707-2 LVH-0707-2 

LSA-0557-1 LSE-0527-2 LSR-0527-1 LST-0527-1 LVA-0707-5 LVA-4207-1 LVG-0807-1 LVH-0807-1 

LSA-0557-2 LSE-0527-5 LSR-0527-2 LST-0527-2 LVA-0807-1 LVA-4207-2 LVG-0807-2 LVH-0807-2 

LSA-0657-1 LSE-0627-2 LSR-0627-1 LST-0627-1 LVA-0807-2 LVA-4207-5 LVG-0907-1 LVH-0907-1 

LSA-0657-2 LSE-0627-5 LSR-0627-2 LST-0627-2 LVA-0807-5 LVE-0707-2 LVG-0907-2 LVH-0907-2 

LSA-0757-1 LSE-0727-2 LSR-0727-1 LST-0727-1 LVA-0907-1 LVE-0707-5 LVG-1207-1 LVH-1207-1 

LSA-0757-2 LSE-0727-5 LSR-0727-2 LST-0727-2 LVA-0907-2 LVE-0807-2 LVG-1207-2 LVH-1207-2 

LSA-0927-1 LSE-0887-2 LSR-0887-1 LST-0887-1 LVA-0907-5 LVE-0807-5 LVG-1507-1 LVH-1507-1 

LSA-0927-2 LSE-0887-5 LSR-0887-2 LST-0887-2 LVA-1207-1 LVE-0907-2 LVG-1507-2 LVH-1507-2 

LSA-1087-1 LSE-1037-2 LSR-1037-1 LST-1037-1 LVA-1207-2 LVE-0907-5 LVG-1907-1 LVH-1907-1 

LSA-1087-2 LSE-1037-5 LSR-1037-2 LST-1037-2 LVA-1207-5 LVE-1207-2 LVG-1907-2 LVH-1907-2 

LSA-1307-1 LSE-1247-2 LSR-1247-1 LST-1247-1 LVA-1507-1 LVE-1207-5 LVG-2407-1 LVH-2407-1 

LSA-1307-2 LSE-1247-5 LSR-1247-2 LST-1247-2 LVA-1507-2 LVE-1507-2 LVG-2407-2 LVH-2407-2 

LSA-1407-1 LSE-1337-2 LSR-1337-1 LST-1337-1 LVA-1507-5 LVE-1507-5 LVG-2707-1 LVH-2707-1 

LSA-1407-2 LSE-1337-5 LSR-1337-2 LST-1337-2 LVA-1907-1 LVE-1907-2 LVG-2707-2 LVH-2707-2 

LSA-1607-1 LSE-1527-2 LSR-1527-1 LST-1527-1 LVA-1907-2 LVE-1907-5 LVG-3007-1 LVH-3007-1 

LSA-1607-2 LSE-1527-5 LSR-1527-2 LST-1527-2 LVA-1907-5 LVE-2407-2 LVG-3007-2 LVH-3007-2 

LSA-1907-1 LSE-1807-2 LSR-1807-1 LST-1807-1 LVA-2407-1 LVE-2407-5 LVG-3607-1 LVH-3607-1 

LSA-1907-2 LSE-1807-5 LSR-1807-2 LST-1807-2 LVA-2407-2 LVE-2707-2 LVG-3607-2 LVH-3607-2 

LSA-2307-1 LSE-2207-2 LSR-2207-1 LST-2207-1 LVA-2407-5 LVE-2707-5 LVG-4207-1 LVH-4207-1 

LSA-2307-2 LSE-2207-5 LSR-2207-2 LST-2207-2 LVA-2707-1 LVE-2707-8 LVG-4207-2 LVH-4207-2 

LSA-2607-1 LSE-2407-2 LSR-2407-1 LST-2407-1 LVA-2707-2 LVE-2707-9 

LSA-2607-2 LSE-2407-5 LSR-2407-2 LST-2407-2 LVA-2707-5 LVE-3007-2 

LSA-3207-1 LSE-3007-2 LSR-3007-1 LST-3007-1 LVA-3007-1 LVE-3007-5 

LSA-3207-2 LSE-3007-5 LSR-3007-2 LST-3007-2 LVA-3007-2 LVE-3607-2 

LSA-3907-1 LSE-3707-2 LSR-3707-1 LST-3707-1 LVA-3007-5 LVE-3607-5 

LSA-3907-2 LSE-3707-5 LSR-3707-2 LST-3707-2 LVA-3607-1 LVE-4207-2 

LVE-4207-5 

EJA-02600A-5 EJE-02500A-5 EJG-02600A-5 EJ H-02600A-5 EJR-02600A-5 EJT-02600A-5 EQA-04900A-5 EQE-04800A-5 

EJA-02600A-9 EJE-02500A-9 EJG-02600A-9 EJ H-02600A-9 EJR-02600A-9 EJT-02600A-9 EQA-04900A-9 EQE-04800A-9 

EJA-03200A-5 EJE-03100A-5 EJG-03200A-5 EJ H-03200A-5 EJR-03200A-5 EJT-03200A-5 EQA-05800A-5 EQE-05700A-5 

EJA-03200A-9 EJE-03100A-9 EJG-03200A-9 EJ H-03200A-9 EJR-03200A-9 EJT-03200A-9 EQA-0SB00A-9 EQE-05700A-9 

EJA-03800A-5 EJE-03700A-5 EJG-03800A-S EJ H-03800A-5 EJR-03800A-5 EJT-03800A-S EQA-06800A-5 EQE-06700A-5 

EJA-03800A-9 EJE-03700A-9 EJG-03800A-9 EJ H-03800A-9 EJR-03800A-9 EJT-03800A-9 EQA-06800A-9 EQE-06700A-9 

EJA-05200A-5 EJE-0SlO0A-5 EJG-05200A-S EJ H-05200A-5 EJR-05200A-5 EJT-05200A-S EQA-09900A-5 EQE-09600A-5 

EJA-05200A-9 EJE-0SlO0A-9 EJG-05200A-9 EJ H-05200A-9 EJR-05200A-9 EJT-05200A-9 EQA-09900A-9 EQE-09600A-9 

EJA-06300A-5 EJE-06200A-5 EJG-06300A-5 EJ H-06300A-5 EJR-06300A-5 EJT-06300A-5 EQA-11600A-5 EQE-llS00A-5 

EJA-06300A-9 EJE-06200A-9 EJG-06300A-9 EJ H-06300A-9 EJR-06300A-9 EJT-06300A-9 EQA-11600A-9 EQE-llS00A-9 

EJA-07700A-5 EJE-07600A-5 EJG-07700A-S EJH-07700A-5 EJR-07700A-5 EJT-07700A-5 EQA-13600A-5 EQE-13400A-5 
43646 Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 


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EJA-07700A-9 EJ E-07600A-9 EJG-07700A-9 EJH-07700A-9 EJ R-07700A-9 EJT-07700A-9 EQA-13600A-9 EQE-13400A-9 

EJA-09500A-5 EJE-09300A-5 EJG-09500A-5 EJH-09500A-5 EJR-09500A-5 EJT-09500A-5 EQA-17500A-5 EQE-17200A-5 

EJA-09500A-9 EJ E-09300A-9 EJG-09500A-9 EJH-09500A-9 EJR-09500A-9 EJT-09500A-9 EQA-17500A-9 EQE-17200A-9 

EJA-11600A-5 EJE-11500A-5 EJG-11600A-5 EJH-11600A-5 EJR-11600A-5 EJT-11600A-5 EQA-20400A-5 EQE-20300A-5 

EJA-11600A-9 EJE-llS00A-9 EJG-11600A-9 EJH-11600A-9 EJR-11600A-9 EJT-11600A-9 EQA-20400A-9 EQE-20300A-9 

EJA-12700A-5 EJE-15300A-5 EJG-12700A-5 EJH-12700A-5 EJR-12700A-5 EJT-12700A-5 EQA-23400A-5 EQE-26800A-5 

EJA-12700A-9 EJE-15300A-9 EJG-12700A-9 EJH-12700A-9 EJR-12700A-9 EJT-12700A-9 EQA-23400A-9 EQE-26800A-9 

EJA-15400A-5 EJE-19000A-5 EJG-15400A-5 EJH-15400A-5 EJ R-15400A-5 EJT-15400A-5 EQA-26500A-5 EQE-33700A-5 

EJA-15400A-9 EJE-19000A-9 EJG-15400A-9 EJH-15400A-9 EJR-15400A-9 EJT-15400A-9 EQA-26500A-9 EQE-33700A-9 

EJA-19400A-5 EJG-19400A-5 EJH-19400A-5 EJR-19400A-5 EJT-19400A-5 EQA-34200A-5 

EJA-19400A-9 EJG-19400A-9 EJH-19400A-9 EJR-19400A-9 EJT-19400A-9 EQA-34200A-9 

EJA-21000A-5 EJG-21000A-5 EJH-21000A-5 EJR-21000A-5 EJT-21000A-5 EQA-44400A-5 

EJA-21000A-9 EJG-21000A-9 EJH-21000A-9 EJ R-2 lOO0A-9 EJT-21000A-9 EQA-44400A-9 

EQG-04900A-5 EQH-04900A-5 EQR-04900A-5 EQT-04900A-5 EKA-1400-2 EKE-2200-5 EKR-4000-5 EMA-02150-2 

EQG-04900A-9 EQH-04900A-9 EQR-04900A-9 EQT-04900A-9 EKA-1600-2 EKE-2900-2 EKR-5000-2 EMA-02150-5 

EQG-05800A-5 EQH-05800A-5 EQR-05800A-5 EQT-05800A-5 EKA-1800-2 EKE-2900-5 EKR-5000-5 EMA-02550-2 

EQG-05800A-9 EQH-05800A-9 EQR-05800A-9 EQT-05800A-9 EKA-2100-2 EKE-3400-2 EKR-6000-2 EMA-02550-5 

EQG-06800A-5 EQH-06800A-5 EQR-06800A-5 EQT-06800A-5 EKA-2100-5 EKE-3400-5 EKR-6000-5 EMA-03000-2 

EQG-06800A-9 EQH-06800A-9 EQR-06800A-9 EQT-06800A-9 EKA-2400-2 EKE-4000-2 EKT-1300-2 EMA-03000-5 

EQG-09900A-5 EQH-09900A-5 EQR-09900A-5 EQT-09900A-5 EKA-2400-5 EKE-4000-5 EKT-1500-2 EMA-04300-2 

EQG-09900A-9 EQH-09900A-9 EQR-09900A-9 EQT-09900A-9 EKA-3000-2 EKE-5000-2 EKT-1700-2 EMA-04300-5 

EQG-11600A-5 EQH-11600A-5 EQR-11600A-5 EQT-11600A-5 EKA-3000-5 EKE-5000-5 EKT-1700-5 EMA-05100-2 

EQG-11600A-9 EQH-11600A-9 EQR-11600A-9 EQT-11600A-9 EKA-3600-2 EKE-6000-2 EKT-2000-2 EMA-05100-5 

EQG-13600A-5 EQH-13600A-5 EQR-13600A-5 EQT-13600A-5 EKA-3600-5 EKE-6000-5 EKT-2000-5 EMA-06000-2 

EQG-13600A-9 EQH-13600A-9 EQR-13600A-9 EQT-13600A-9 EKA-4200-2 EKR-1300-2 EKT-2200-2 EMA-06000-5 

EQG-17500A-5 EQH-17500A-5 EQR-17500A-5 EQT-17500A-5 EKA-4200-5 EKR-1500-2 EKT-2200-5 EMA-07650-2 

EQG-17500A-9 EQH-17500A-9 EQR-17500A-9 EQT-17500A-9 EKA-5400-2 EKR-1700-2 EKT-2900-2 EMA-07650-5 

EQG-20400A-5 EQH-20400A-5 EQR-20400A-5 EQT-20400A-5 EKA-5400-5 EKR-1700-5 EKT-2900-5 EMA-09000-2 

EQG-20400A-9 EQH-20400A-9 EQR-20400A-9 EQT-20400A-9 EKA-6300-2 EKR-2000-2 EKT-3400-2 EMA-09000-5 

EQG-23400A-5 EQH-23400A-5 EQR-23400A-5 EQT-23400A-5 EKA-6300-5 EKR-2000-5 EKT-3400-5 EMA-10200-2 

EQG-23400A-9 EQH-23400A-9 EQR-23400A-9 EQT-23400A-9 EKE-1300-2 EKR-2200-2 EKT-4000-2 EMA-10200-5 

EQG-26500A-5 EQH-26500A-5 EQR-26500A-5 EQT-26500A-5 EKE-1500-2 EKR-2200-5 EKT-4000-5 EMA-12000-2 

EQG-26500A-9 EQH-26500A-9 EQR-26500A-9 EQT-26500A-9 EKE-1700-2 EKR-2900-2 EKT-5000-2 EMA-12000-5 

EQG-34200A-5 EQH-34200A-5 EQR-34200A-5 EQT-34200A-5 EKE-1700-5 EKR-2900-5 EKT-5000-5 EMA-16100-5 

EQG-34200A-9 EQH-34200A-9 EQR-34200A-9 EQT-34200A-9 EKE-2000-2 EKR-3400-2 EKT-6000-2 

EQG-44400A-5 EQH-44400A-5 EQR-44400A-5 EQT-44400A-5 EKE-2000-5 EKR-3400-5 EKT-6000-5 

EQG-44400A-9 EQH-44400A-9 EQR-44400A-9 EQT-44400A-9 EKE-2200-2 EKR-4000-2 

EME-02000-2 EME-07200-5 EMG-04000-2 EMG-11600-5 EMH-07200-2 EMR-02900-5 EMR-11600-2 EMT-05800-5 

EME-02000-5 EME-08700-2 EMG-04000-5 EMH-02000-2 EMH-07200-5 EMR-04000-2 EMR-11600-5 EMT-07200-2 

EME-02400-2 EME-08700-5 EMG-04800-2 EMH-02000-5 EMH-08700-2 EMR-04000-5 EMT-02000-2 EMT-07200-5 

EME-02400-5 EME-09600-2 EMG-04800-5 EMH-02400-2 EMH-08700-5 EMR-04800-2 EMT-02000-5 EMT-08700-2 

EME-02900-2 EME-09600-5 EMG-05800-2 EMH-02400-5 EMH-09600-2 EMR-04800-5 EMT-02400-2 EMT-08700-5 

EME-02900-5 EME-11600-2 EMG-05800-5 EMH-02900-2 EMH-09600-5 EMR-05800-2 EMT-02400-5 EMT-09600-2 

E ME-04000-2 EME-11600-5 EMG-07200-2 EMH-02900-5 EMH-11600-2 EMR-05800-5 EMT-02900-2 EMT-09600-5 

EME-04000-5 EMG-02000-2 EMG-07200-5 EMH-04000-2 EMH-11600-5 EMR-07200-2 EMT-02900-5 EMT-11600-2 

EME-04800-2 EMG-02000-5 EMG-08700-2 EMH-04000-5 EMR-02000-2 EMR-07200-5 EMT-04000-2 EMT-11600-5 

EME-04800-5 EMG-02400-2 EMG-08700-5 EMH-04800-2 EMR-02000-5 EMR-08700-2 EMT-04000-5 
Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 43647 

All these basic models with brand 

name: RefPlus 

Specific Requirements sought to be 

waived—Petitioning for a waiver and 

interim waiver to exempt CO2 Direct 

Expansion Unit Coolers in Medium and 

Low Temperature application from 

being tested to the current test 

procedure. The prescribed test 

procedure is not appropriate for these 

products for the reasons stated 

previously (liquid inlet saturation 

temperature and liquid inlet subcooling 

temperature test condition values are 

not appropriate for a transcritical CO2

booster system application). 

List of manufacturers of all other basic 

models marketing in the United States 

and known to the petitioner to 

incorporate similar design 

characteristics— 

Manufacturer: Heatcraft Refrigeration 

Products 

Manufacturer: Heat Transfer Products 

Group (HTPG) 

Manufacturer: Hussmann Corp. (Krack) 

Manufacturer: Keeprite Refrigeration 

Proposed alternate test procedure 

1. Utilize the test procedure as 

outlined in Appendix C to Subpart R of 

Part 431—Uniform Test Method for the 

Measurement of Net Capacity and 

AWEF of Walk-in Cooler and Walk-in 

Freezer Refrigeration Systems with 

reference to AHRI 1250–2009 with the 

exception of modifying the test 

conditions in Table 15 and 16 for liquid 

inlet saturation temperature and liquid 

inlet subcooling temperature as noted 

below. In addition, per Appendix C to 

Subpart R of 431 use the calculations in 

AHRI 1250 section 7.9 to determine 

AWEF and net capacity for unit coolers 

matched to parallel rack systems. Use 

AHRI 1250 Table 17, EER for Remote 

Commercial Refrigerated Display 

Merchandisers and Storage Cabinets to 

determine the power consumption of 

the system. 


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EME-05800-2 EMG-02400-5 EMG-09600-2 EMH-04800-5 EMR-02400-2 EMR-08700-5 EMT-04800-2 

EME-05800-5 EMG-02900-2 EMG-09600-5 EMH-05800-2 EMR-02400-5 EMR-09600-2 EMT-04800-5 

EME-07200-2 EMG-02900-5 EMG-11600-2 EMH-05800-5 EMR-02900-2 EMR-09600-5 EMT-05800-2 

TABLE 15-REFRIGERATOR UNIT COOLER 

Unit 

Unit cooler air 

cooler air entering CO2 Liquid CO2 Liquid 

entering relative Saturated inlet inlet 

Test dry-bulb, humidity, suction saturation subcooling Compressor 

description OF % temp, °F temp, °F temp, °F capacity Test objective 

Off Cycle Fan 35 <50 - - - Compressor Measure fan 

Power Off input power 

during 

compressor off 

cycle. 

Refrigeration 35 <50 25 38 5 Com presser Determine Net 

Capacity On Refrigeration 

Suction A Capacity of Unit 

Cooler. 
43648 Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Notices 

Success of the application for Interim 

Waiver will: ensure that manufacturers 

of CO2 Direct Expansion Unit Coolers in 

Medium and Low Temperature 

application can continue to participate 

in the market 

What economic hardship and/or 

competitive disadvantage is likely to 

result absent a favorable determination 

on the Application for Interim Waiver— 

Economic hardship will be loss of sales 

due to not meeting the DOE 

requirements set forth. 

Conclusion 

RefPlus Inc. seeks an Interim Waiver 

from DOE’s current requirement to test 

CO2 direct expansion unit coolers. 

Request Submitted by: 

/s/ 

Michel Lecompte, 

Vice-President, Research & Development 

Refplus Inc. 

[FR Doc. 2021–16997 Filed 8–9–21; 8:45 am] 

BILLING CODE 6450–01–C 

DEPARTMENT OF ENERGY 

Agency Information Collection 

Extension 

AGENCY: Office of Environment, Health, 

Safety and Security, U.S. Department of 

Energy. 

ACTION: Notice and request for 

comments. 

SUMMARY: The Department of Energy 

(DOE), pursuant to the Paperwork 

Reduction Act of 1995, intends to 

extend for three years, an information 

collection request with the Office of 

Management and Budget (OMB). The 

purpose of this collection is to protect 

national security and other critical 

assets entrusted to the Department. 

DATES: Comments regarding this 

proposed information collection must 

be received on or before October 12, 

2021. If you anticipate difficulty in 

submitting comments within that 

period, contact the person listed below 

as soon as possible. 

ADDRESSES: Written comments may be 

sent to Sandra Dentinger, AU–70/E–455 

Germantown Building, U.S. Department 

of Energy, 1000 Independence Ave. SW, 

Washington, DC 20585–1290 or by 

email at Sandra.Dentinger@hq.doe.gov. 

FOR FURTHER INFORMATION CONTACT: 

Requests for additional information or 

copies of the information collection 

instrument and instructions should be 

directed to Sandra Dentinger, AU–70/E– 

455 Germantown Building, U.S. 

Department of Energy, 1000 

Independence Ave SW, Washington, DC 

20585–1290, by email at 

Sandra.Dentinger@hq.doe.gov or by 

telephone at (301) 903–5139. 

SUPPLEMENTARY INFORMATION: Comments 

are invited on: (a) Whether the extended 

collection of information is necessary 

for the proper performance of the 

functions of the agency, including 

whether the information shall have 

practical utility; (b) the accuracy of the 

agency’s estimate of the burden of the 

proposed collection of information, 

including the validity of the 

methodology and assumptions used; (c) 

ways to enhance the quality, utility, and 

clarity of the information to be 

collected; and (d) ways to minimize the 

burden of the collection of information 

on respondents, including through the 

use of automated collection techniques 

or other forms of information 

technology. 

This information collection request 

contains: 

(1) OMB No.: 1910–1800; 

(2) Information Collection Request 

Title: Security, Information Collections; 

(3) Type of Review: renewal; 

(4) Purpose: The purpose of this 

collection is to protect national security 

and other critical assets entrusted to the 

Department. Information collected is for 

(1) Foreign Ownership, Control or 

Influence data from bidders on DOE 

contracts requiring personnel security 

clearances; and (2) individuals in the 

process of applying for a security 

clearance/access authorization or who 

already holds one. The collections 

instruments are: DOE Form 5631.18, 

Security Acknowledgement; DOE F 

5631.20, Request for Visitor Access 

Approval; DOE Form 5631.29, Security 


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TABLE 16-FREEZER UNIT COOLER 

Unit 

Unit cooler air 

cooler air entering CO2 Liquid CO2 Liquid 

entering relative Saturated inlet inlet 

Test dry-bulb, humidity, suction saturation subcooling Compressor 

description OF % temp, °F temp, °F temp, °F capacity Test objective 

Off Cycle Fan -10 <50 - - - Compressor Measure fan 

Power Off input power 

during 

compressor off 

cycle. 

Refrigeration -10 <50 -20 38 5 Com presser Determine Net 

Capacity On Refrigeration 

Suction A Capacity of Unit 

Cooler. 

Defrost -10 Various - - - Compressor Test according 

Off to Appendix C 

Section Cll.