[Federal Register Volume 86, Number 52 (Friday, March 19, 2021)]
[Notices]
[Pages 14887-14891]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-05736]


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DEPARTMENT OF ENERGY

[Case Number 2020-009; EERE-2020-BT-WAV-0025]


Energy Conservation Program: Decision and Order Granting a Waiver 
to Heat Transfer Products Group from the Department of Energy Walk-in 
Coolers and Walk-In Freezers Test Procedure

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

ACTION: Notification of decision and order.

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SUMMARY: The U.S. Department of Energy (``DOE'') gives notification of 
a Decision and Order (Case Number 2020-009) that grants to Heat 
Transfer Products Group (``HTPG'') a waiver from specified portions of 
the DOE test procedure for determining the energy efficiency of 
specified carbon dioxide (``CO2'') direct expansion unit coolers. Under 
the Decision and Order, HTPG is required to test and rate the specified 
basic models of its CO2 direct expansion unit coolers in accordance 
with the alternate test procedure set forth in the Decision and Order.

DATES: The Decision and Order is effective on March 19, 2021. The 
Decision and Order will terminate upon the compliance date of any 
future amendment to the test procedure for walk-in refrigeration 
systems located at title 10 of the Code of Federal Regulations 
(``CFR''), part 431, subpart R, appendix C that addresses the issues 
presented in this waiver. At such time, HTPG must use the relevant test 
procedure for these CO2 direct expansion unit coolers for any testing 
to demonstrate compliance with the applicable standards, and any other 
representations of energy use.

[[Page 14888]]


FOR FURTHER INFORMATION CONTACT: 
    Ms. Lucy deButts, U.S. Department of Energy, Office of Energy 
Efficiency and Renewable Energy, Building Technologies Office, EE-5B, 
1000 Independence Avenue SW, Washington, DC 20585-0121. Email: 
[email protected].
    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: 
[email protected].

SUPPLEMENTARY INFORMATION: In accordance with Sec.  431.401(f)(2) of 
Title 10 of the Code of Federal Regulations (10 CFR 431.401(f)(2)), DOE 
gives notification of the issuance of its Decision and Order as set 
forth below. The Decision and Order grants HTPG a waiver from the 
applicable test procedure at 10 CFR part 431, subpart R, appendix C for 
specified basic models of CO2 direct expansion unit coolers, and 
provides that HTPG must test and rate such CO2 direct expansion unit 
coolers using the alternate test procedure specified in the Decision 
and Order. HTPG's representations concerning the energy efficiency of 
the specified basic models must be based on testing according to the 
provisions and restrictions in the alternate test procedure set forth 
in the Decision and Order, and the representations must fairly disclose 
the test results. Distributors, retailers, and private labelers are 
held to the same requirements when making representations regarding the 
energy efficiency of this equipment. (42 U.S.C. 6314(d))
    Consistent with 10 CFR 431.401(j), not later than May 18, 2021, any 
manufacturer currently distributing in commerce in the United States 
CO2 direct expansion unit coolers employing a technology or 
characteristic that results in the same need for a waiver from the 
applicable test procedure must submit a petition for waiver. 
Manufacturers not currently distributing such products/equipment in 
commerce in the United States must petition for and be granted a waiver 
prior to the distribution in commerce of CO2 direct expansion unit 
coolers in the United States. 10 CFR 431.401(j). Manufacturers may also 
submit a request for interim waiver pursuant to the requirements of 10 
CFR 431.401.

Case # 2020-009

Decision and Order

I. Background and Authority

    The Energy Policy and Conservation Act, as amended (``EPCA''),\1\ 
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 \2\ of 
EPCA 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. This 
equipment includes walk-in cooler and walk-in freezer (collectively, 
``walk-in'') refrigeration systems, the focus of this document. (42 
U.S.C. 6311(1)(G))
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    \1\ All 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).
    \2\ For editorial reasons, upon codification in the U.S. Code, 
Part C was redesignated as Part A-1.
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    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), test 
procedures (42 U.S.C. 6314), labeling provisions (42 U.S.C. 6315), 
energy conservation standards (42 U.S.C. 6313), 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 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 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 set forth 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'').
    Any interested person may submit a petition for waiver from DOE's 
test procedure requirements. 10 CFR 431.401(a)(1). DOE will grant a 
waiver from the test procedure requirements if DOE determines either 
that the basic model(s) 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). 
DOE may grant the waiver subject to conditions, including adherence to 
alternate test procedures. Id.
    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. When 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. HTPG's Petition for Waiver: Assertions and Determinations

    By letter dated July 6, 2020, HTPG filed a petition for waiver and 
a petition for interim waiver from the DOE test procedure applicable to 
CO2 direct expansion unit coolers set forth in Appendix C. HTPG claimed 
that the test conditions described in 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), as incorporated by Appendix C with modification, cannot be 
achieved by the specified basic models and are not consistent with 
operation of HTPG's CO2 direct expansion unit coolers. HTPG asserted 
that the prescribed test procedure is not appropriate for HTPG's CO2 
direct expansion unit coolers and the test

[[Page 14889]]

conditions are not achievable, since CO2 refrigerant has a critical 
temperature of 87.8 [deg]F \3\ and the current DOE test procedure 
requires a liquid inlet saturation temperature of 105 [deg]F and liquid 
inlet subcooling of 9 [deg]F. HTPG suggested that the test conditions 
should be more consistent with typical operating conditions for a 
transcritical CO2 booster system.
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    \3\ The 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.
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    HTPG's suggested test procedure specifies using modified liquid 
inlet saturation and liquid inlet subcooling temperatures of 38 [deg]F 
and 5 [deg]F, respectively, for both walk-in refrigerator unit coolers 
and walk-in freezer unit coolers. Additionally, because the subject 
units are used in transcritical CO2 booster systems, HTPG recommended 
that the calculations in AHRI 1250-2009, section 7.9 should be used to 
determine the annual walk-in energy factor (``AWEF'') and net capacity 
for unit coolers matched to parallel rack systems, as required under 
the DOE test procedure. This section of AHRI 1250-2009 is prescribed by 
the DOE test procedure for determining AWEF for all unit coolers tested 
alone (see section 3.3.1 of Appendix C). Finally, HTPG 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.
    On December 23, 2020, DOE published a notification that announced 
its receipt of the petition for waiver and granted HTPG an interim 
waiver. 85 FR 83927 (``Notification of Petition for Waiver''). In the 
Notification of Petition for Waiver, DOE acknowledged the difference in 
critical pressure and temperature between traditional refrigerants 
(such as R404A) and CO2 as used in HTPG's direct expansion unit 
coolers. 85 FR 83927, 83929. DOE also noted that the transcritical 
nature of CO2 generally requires a more complex refrigeration cycle 
design to approach the efficiency of traditional refrigerant cycles 
during operation in high temperature conditions. Id.
    In the Notification of Petition for Waiver, DOE also solicited 
comments from interested parties on all aspects of the petition and the 
specified alternate test procedure. 85 FR 83927, 83827. DOE received no 
substantive comments \4\ in response to the Notification of Petition 
for Waiver.
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    \4\ One comment was received, but it did not contain any 
content. The comment only stated the docket number for the 
notification of petition for waiver and grant of an interim waiver.
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    For the reasons explained here and in the Notification of Petition 
for Waiver, absent a waiver, the basic models identified by HTPG in its 
petition cannot be tested and rated for energy consumption on a basis 
representative of their true energy consumption characteristics. DOE 
has reviewed the recommended procedure suggested by HTPG and concludes 
that it will allow for the accurate measurement of the energy use of 
the CO2 direct expansion unit coolers, while alleviating the testing 
issues associated with HTPG's implementation of DOE's applicable walk-
in refrigeration systems test procedure for the specified basic models.
    Thus, DOE is requiring that HTPG test and rate specified CO2 direct 
expansion unit cooler basic models according to the alternate test 
procedure specified in this Decision and Order, which is identical to 
the procedure provided in the interim waiver.
    This Decision and Order applies only to the basic models listed and 
does not extend to any other basic models. DOE evaluates and grants 
waivers for only those basic models specifically set out in the 
petition, not future models that may be manufactured by the petitioner. 
HTPG may request that DOE extend the scope of this waiver to include 
additional basic models that employ the same technology as those listed 
in this waiver. 10 CFR 431.401(g). HTPG may also submit another 
petition for waiver from the test procedure for additional basic models 
that employ a different technology and meet the criteria for test 
procedure waivers. 10 CFR 431.401(a)(1).
    DOE notes that it may modify or rescind the waiver at any time upon 
DOE's determination that the factual basis underlying the petition for 
waiver is incorrect, or upon a determination that the results from the 
alternate test procedure are unrepresentative of the basic models' true 
energy consumption characteristics. 10 CFR 431.401(k)(1). Likewise, 
HTPG may request that DOE rescind or modify the waiver if the company 
discovers an error in the information provided to DOE as part of its 
petition, determines that the waiver is no longer needed, or for other 
appropriate reasons. 10 CFR 431.401(k)(2).

III. Order

    After careful consideration of all the material that was submitted 
by HTPG, HTPG's consumer-facing materials, including websites and 
product specification sheets for the basic models listed in HTPG's 
petition, as well as other industry information pertaining to the 
subject basic models listed by HTPG, it is ordered that:
    (1) HTPG must, as of the date of publication of this Order in the 
Federal Register, test and rate the following CO2 direct expansion unit 
cooler basic models with the alternate test procedure as set forth in 
paragraph (2):

                                                           Russell-Branded Basic Model Numbers
RL6A041ADAF               RL6A041DDAF               RL6A052ADAF               RL6A052DDAF               RL6A066ADAF              RL6A066DDAF
RL6A073ADAF               RL6A073DDAF               RL6A094ADAF               RL6A094DDAF               RL6A117ADAF              PL6A117DDAF
RL6A130ADAF               RL6A130DDAF               RL6A141ADAF               RL6A141DDAF               RL6A161ADAF              RL6A161DDAF
RL6A181ADAF               RL6A181DDAF               RL6A195ADAF               RL6A195DDAF               RL6A235ADAF              RL6A235DDAF
RL6A260ADAF               RL6A260DDAF               RL6A295ADAF               RL6A295DDAF               RL6A330ADAF              RL6A330DDAF
RL6A390ADAF               RL6A390DDAF               RL6E035DDAF               RL6E042DDAF               RL6E049DDAF              RL6E066DDAF
RL6E077DDAF               RL6E090DDAF               RL6E105DDAF               RL6E121DDAF               RL6E142DDAF              RL6E162DDAF
RL6E182DDAF               RL6E200DDAF               RL6E200EDAF               RL6E244DDAF               RL6E244EDAF              RL6E281DDAF
RL6E281EDAF               RL4E027DDAF               RL4E032DDAF               RL4E038DDAF               RL4E051DDAF              RL4E064DDAF
RL4E080DDAF               RL4E094DDAF               RL4E110DDAF               RL4E125DDAF               RL4E141DDAF              RL4E155DDAF
RL4E155EDAF               RL4E195DDAF               RL4E195EDAF               RL4E230DDAF               RL4E230EDAF              .......................
 
RM6A182ADAF               RM6A182DDAF               RM6A182FDAF               RM6A220ADAF               RM6A220DDAF              RM6A220FDAF
RM6A276ADAF               RM6A276DDAF               RM6A276FDAF               RM6A370ADAF               RM6A370DDAF              RM6A370FDAF
RM6A442ADAF               RM6A442DDAF               RM6A442FDAF               RM6A549ADAF               RM6A549DDAF              RM6A549FDAF

[[Page 14890]]

 
RM6A658ADAF               RM6A658DDAF               RM6A658FDAF               RM6E153DDAF               RM6E153EDAF              RM6E153FDAF
RM6E153GDAF               RM6E184DDAF               RM6E184EDAF               RM6E184FDAF               RM6E184GDAF              RM6E311DDAF
RM6E311EDAF               RM6E311FDAF               RM6E311GDAF               RM6E374DDAF               RM6E374EDAF              RM6E374FDAF
RM6E374GDAF               RM6E469EDAF               RM6E469FDAF               RM6E469GDAF               RM6E564EDAF              RM6E564FDAF
RM6E564GDAF               RM4E110DDAF               RM4E110EDAF               RM4E110FDAF               RM4E110GDAF              RM4E143DDAF
RM4E143EDAF               RM4E143FDAF               RM4E143GDAF               RM4E232DDAF               RM4E232EDAF              RM4E232FDAF
RM4E232GDAF               RM4E288DDAF               RM4E288EDAF               RM4E288FDAF               RM4E288GDAF              RM4E336EDAF
RM4E336FDAF               RM4E336GDAF               RM4E419EDAF               RM4E419FDAF               RM4E419GDAF              .......................
 
RV6A043ADAF               RV6A043DDAF               RV6A053ADAF               RV6A053DDAF               RV6A085ADAF              RV6A085DDAF
RV6A106ADAF               RV6A106DDAF               RV6A129ADAF               RV6A129DDAF               RV6A158ADAF              RV6A158DDAF
RV6A176ADAF               RV6A176DDAF               RV6A218ADAF               RV6A218DDAF               RV6A271ADAF              RV6A271DDAF
RV6E043DDAF               RV6E053DDAF               RV6E085DDAF               RV6E106DDAF               RV6E129DDAF              RV6E158DDAF
RV6E176DDAF               RV6E218DDAF               RV6E271DDAF               ........................  .......................  .......................
 
ASLA25048ADAF             ASLA25048DDAF             ASLA25061ADAF             ASLA25061DDAF             ASLA35073ADAF            ASLA35073DDAF
ASLA45098ADAF             ASLA45098DDAF             ASLA55122ADAF             ASLA55122DDAF             ASLA65158ADAF            ASLA65158DDAF
ASLE25048DDAF             ASLE25058DDAF             ASLE35070DDAF             ASLE45094DDAF             ASLE55117DDAF            ASLE65150DDAF
 
RE6A041ADAF               RE6A041DDAF               RE6A070ADAF               RE6A070DDAF               RE6A084ADAF              RE6A084DDAF
RE6A104ADAF               RE6A104DDAF               RE6A128ADAF               RE6A128DDAF               RE6A141ADAF              RE6A141DDAF
RE6A169ADAF               RE6A169DDAF               RE6A204ADAF               RE6A204DDAF               RE6A258ADAF              RE6A258DDAF
RE6E037DDAF               RE6E045DDAF               RE6E075DDAF               RE6E089DDAF               RE6E108DDAF              RE6E125DDAF
RE6E137DDAF               RE6E182DDAF               RE6E221DDAF               RE6E278DDAF               RE4E037DDAF              RE4E075DDAF
RE4E107DDAF               RE4E149DDAF               RE4E186DDAF               RE4E234DDAF               .......................  .......................
 
RH6A031DDAF               RH6A031FDAF               RH6A043DDAF               RH6A043FDAF               RH6A052DDAF              RH6A052FDAF
RH6A063DDAF               RH6A063FDAF               RH6A087DDAF               RH6A087FDAF               RH6A105DDAF              RH6A105FDAF
RH6A132DDAF               RH6A132FDAF               RH6A156DDAF               RH6A156FDAF               RH6A175DDAF              RH6A175FDAF
RH6A209DDAF               RH6A209FDAF               RH6E033DDAF               RH6E033EDAF               RH6E033FDAF              RH6E033GDAF
RH6E044DDAF               RH6E044EDAF               RN6E044FDAF               RH6E044GDAF               RH6E053DDAF              RH6E053EDAF
RH6E053FDAF               RH6E053GDAF               RH6E066DDAF               RH6E066EDAF               RH6E066FDAF              RH6E066GDAF
RH6E089DDAF               RH6E089EDAF               RH6E089FDAF               RH6E089GDAF               RH6E109DDAF              RH6E109EDAF
RH6E109FDAF               RH6E109GDAF               RH6E134DDAF               RH6E134EDAF               RH6E134FDAF              RH6E134GDAF
RH6E163DDAF               RH6E163EDAF               RH6E163FDAF               RH6E163GDAF               RH6E199DDAF              RH6E199EDAF
RH6E199FDAF               RH6E199GDAF               RH4E035DDAF               RH4E035EDAF               RH4E035FDAF              RH4E035GDAF
RH4E044DDAF               RH4E044EDAF               RH4E044FDAF               RH4E044GDAF               RH4E071DDAF              RH4E071EDAF
RH4E071FDAF               RH4E071GDAF               RH4E087DDAF               RH4E087EDAF               RH4E087FDAF              RH4E087GDAF
RH4E107DDAF               RH4E107EDAF               RH4E107FDAF               RH4E107GDAF               RH4E131DDAF              RH4E131EDAF
RH4E131FDAF               RH4E131GDAF               RH4E167DDAF               RH4E167EDAF               RH4E167FDAF              RH4E167GDAF
 

    (2) The alternate test procedure for the HTPG basic models listed 
in paragraph (1) of this Order is the test procedure for walk-in 
refrigeration systems prescribed by DOE at 10 CFR 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 [deg]F and 5 [deg]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 other relevant 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:

                                                           Table 15--Refrigerator Unit Cooler
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                                      Unit cooler  Unit cooler                  Liquid       Liquid
                                           air          air      Saturated      inlet        inlet
          Test description              entering     entering     suction     saturation   subcooling     Compressor capacity         Test objective
                                       dry-bulb,     relative      temp,        temp,        temp,
                                         [deg]F    humidity, %     [deg]F       [deg]F       [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................           35          <50  ...........  ...........  ...........  Compressor Off...........  Measure fan input
                                                                                                                                   power during
                                                                                                                                   compressor off cycle.
Refrigeration Capacity Suction A....           35          <50           25           38            5  Compressor On............  Determine Net
                                                                                                                                   Refrigeration
                                                                                                                                   Capacity of Unit
                                                                                                                                   Cooler.
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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 [deg]F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.


                                                              Table 16--Freezer Unit Cooler
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                                      Unit cooler  Unit cooler                  Liquid       Liquid
                                           air          air      Saturated      inlet        inlet
          Test description              entering     entering     suction     saturation   subcooling     Compressor capacity         Test objective
                                       dry-bulb,     relative      temp,        temp,        temp,
                                         [deg]F    humidity, %     [deg]F       [deg]F       [deg]F
--------------------------------------------------------------------------------------------------------------------------------------------------------
Off Cycle Fan Power.................          -10          <50  ...........  ...........  ...........  Compressor Off...........  Measure fan input
                                                                                                                                   power during
                                                                                                                                   compressor off cycle.
Refrigeration Capacity Suction A....          -10          <50          -20           38            5  Compressor On............  Determine Net
                                                                                                                                   Refrigeration
                                                                                                                                   Capacity of Unit
                                                                                                                                   Cooler.

[[Page 14891]]

 
Defrost.............................          -10      Various  ...........  ...........  ...........  Compressor Off...........  Test according to
                                                                                                                                   Appendix C Section
                                                                                                                                   C11.
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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 [deg]F shall be used. The superheat setting used in the test shall be reported as part of the standard rating.

    (3) Representations. HTPG may not make representations about the 
energy efficiency of a basic model listed in paragraph (1) of this 
Order for compliance or marketing, unless the basic model has been 
tested in accordance with the provisions set forth above and such 
representations fairly disclose the results of such testing.
    (4) This waiver shall remain in effect according to the provisions 
of 10 CFR 431.401.
    (5) DOE issues this waiver on the condition that the statements, 
representations, and information provided by HTPG are valid. If HTPG 
makes any modifications to the controls or configurations of these 
basic models, such modifications will render the waiver invalid with 
respect to that basic model, and HTPG 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 waiver is 
incorrect, or the results from the alternate test procedure are 
unrepresentative of a basic model's true energy consumption 
characteristics. 10 CFR 431.401(k)(1). Likewise, HTPG may request that 
DOE rescind or modify the waiver if HTPG discovers an error in the 
information provided to DOE as part of its petition, determines that 
the waiver is no longer needed, or for other appropriate reasons. 10 
CFR 431.401(k)(2).
    (6) HTPG remains obligated to fulfill any applicable requirements 
set forth at 10 CFR part 429.

Signing Authority

    This document of the Department of Energy was signed on March 15, 
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 the legal effect of this document upon publication in the 
Federal Register.

    Signed in Washington, DC, on March 16, 2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S. Department of Energy.
[FR Doc. 2021-05736 Filed 3-18-21; 8:45 am]
BILLING CODE 6450-01-P