6784 Federal Register / Vol. 90, No. 12 / Tuesday, January 21, 2025 / Rules and Regulations 

DEPARTMENT OF ENERGY 

10 CFR Parts 429, 430, and 431 

[EERE–2023–BT–CE–0001] 

Energy Conservation Program: Energy 

Conservation Standards and Test 

Procedures for Certain Consumer 

Products and Commercial Equipment; 

Corrections 

AGENCY: Office of Energy Efficiency and 

Renewable Energy, Department of 

Energy. 

ACTION: Final rule; correcting 

amendments. 

SUMMARY: The U.S. Department of 

Energy (‘‘DOE’’) is publishing a final 

rule to amend and correct certain energy 

conservation standards and test 

procedures of consumer products and 

commercial and industrial equipment, 

as described in sections I and II of this 

document. The changes addressed in 

this document are technical in nature, 

and neither the errors nor the 

corrections in this document affect the 

substance of any rulemaking or any 

conclusions reached in support of any 

final rule. 

DATES: Effective Date: January 21, 2025. 

The incorporation by reference of 

certain material listed in this rule was 

approved by the Director of the Federal 

Register as of September 30, 2022, April 

24, 2023, June 5, 2023, and June 14, 

2023. 

FOR FURTHER INFORMATION CONTACT: 

Mr. Troy Watson, 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. Telephone: (202) 449– 

9387. Email: 

ApplianceStandardsQuestions@

ee.doe.gov. 

Mr. Eric Stas. Department of Energy, 

Office of the General Counsel, GC–33, 

1000 Independence Avenue SW, 

Washington, DC 20585–0121. 

Telephone: (202) 586–4798. Email: 

Eric.Stas@hq.doe.gov. 

SUPPLEMENTARY INFORMATION: 

Table of Contents 

I. Background 

A. Automatic Commercial Ice Makers 

B. Integrated Light-Emitting Diode Lamps 

C. General Service Lamps 

D. Uninterruptible Power Supplies 

E. Water Heaters 

F. Portable Air Conditioners 

G. Refrigerators, Refrigerator-Freezers, and 

Freezers 

H. Commercial Package Air Conditioners 

and Heat Pumps 

I. Distribution Transformers 

J. Walk-In Coolers and Walk-In Freezers 

K. Circulator Pumps 

L. Commercial and Industrial Pumps 

II. Need for Correction 

A. Automatic Commercial Ice Makers 

B. Integrated Light-Emitting Diode Lamps 

C. General Service Lamps 

D. Uninterruptible Power Supplies 

E. Water Heaters 

F. Portable Air Conditioners 

G. Refrigerators, Refrigerator-Freezers, and 

Freezers 

H. Commercial Package Air Conditioners 

and Heat Pumps 

I. Distribution Transformers 

J. Walk-In Coolers and Walk-In Freezers 

K. Circulator Pumps 

L. Commercial and Industrial Pumps 

III. Procedural Issues and Regulatory Review 

IV. Approval of the Office of the Secretary 

I. Background 

A. Automatic Commercial Ice Makers 

On November 1, 2022, DOE published 

a final rule in the Federal Register 

amending the test procedure for 

automatic commercial ice makers 

(‘‘ACIMs’’) (87 FR 65856; ‘‘November 

2022 ACIM Final Rule’’). As part of the 

November 2022 ACIM Final Rule, DOE 

codified certification requirements for 

ACIMs at title 10 of the Code of Federal 

Regulations (‘‘CFR’’) 429.45. However, 

in the publication of the November 2022 

ACIM Final Rule, DOE inadvertently 

updated 10 CFR 429.45(a)(2)(ii) with a 

typographical error in the formula for 

the upper 95-percent confidence limit 

(‘‘UCL’’) which used a ‘‘minus’’ sign 

instead of a ‘‘plus’’ sign between the 

terms of the UCL formula (see 87 FR 

65856, 65899 (Nov. 1, 2022)). This 

document identifies and corrects this 

error. 

B. Integrated Light-Emitting Diode 

Lamps 

On July 1, 2016, DOE published a 

final rule in the Federal Register 

amending the test procedure for 

integrated light-emitting diode (‘‘LED’’) 

lamps (81 FR 43404; ‘‘July 2016 

Integrated LED Lamps Final Rule’’). In 

the July 2016 Integrated LED Lamps 

Final Rule, DOE adopted the 

requirement that testing of lumen 

output, input power, lamp efficacy, 

power factor, correlated color 

temperature (‘‘CCT’’), color rendering 

index (‘‘CRI’’), lifetime, and standby 

mode power (if applicable) for 

integrated LED lamps be conducted by 

test laboratories accredited by National 

Voluntary Laboratory Accreditation 

Program (‘‘NVLAP’’) or an accrediting 

organization recognized by the 

International Laboratory Accreditation 

Cooperation (‘‘ILAC’’), as codified at 10 

CFR 429.56(b)(2). Further, in the July 

2016 Integrated LED Lamps Final Rule, 

DOE provided that it would state 

directly that accreditation by an 

Accreditation Body that is a signatory 

member to the ILAC Mutual Recognition 

Arrangement (‘‘MRA’’) is an acceptable 

means of laboratory accreditation. 81 FR 

43404, 43419 (July 1, 2016). However, 

DOE inadvertently did not update the 

certification requirements for integrated 

LED lamps in 10 CFR 429.56(b)(2) to 

reflect this statement. This document 

identifies and corrects this error by 

specifying in 10 CFR 429.56(b)(2) that 

the certification report must include the 

testing laboratory’s ILAC accreditation 

body’s identification number or other 

approved identification assigned by the 

ILAC accreditation body. 

Additionally, in the July 2016 

Integrated LED Lamps Final Rule, DOE 

inadvertently updated 10 CFR 

429.56(b)(2) to specify that lifetime be 

reported in years. As indicated in the 

determinations of their represented 

values in 10 CFR 429.56(a)(1)(ii)(D) and 

10 CFR 429.56(a)(2), respectively, 

lifetime must be reported in hours and 

life must be reported in years. This 

document identifies and corrects this 

error. 

C. General Service Lamps 

On August 31, 2022, DOE published 

a final rule in the Federal Register 

amending the test procedure for general 

service fluorescent lamps (‘‘GSFLs’’), 

incandescent reflector lamps (‘‘IRLs’’), 

and general service incandescent lamps 

(‘‘GSILs’’) (87 FR 53618; ‘‘August 2022 

Lamps Final Rule’’). In the August 2022 

Lamps Final Rule, DOE reorganized 10 

CFR 429.27 to apply only to GSFLs (as 

opposed to GSFLs, GSILs, and IRLs), 

establishing new sections 10 CFR 429.55 

for IRLs and 10 CFR 429.66 for GSILs, 

so that each lamp type (i.e., GSFL, IRL, 

GSIL) has its own section within 10 CFR 

part 429. 87 FR 53618, 53629 (August 

31, 2022). However, as part of the 

August 2022 Lamps Final Rule, DOE 

inadvertently did not update the 

certification requirements for general 

service lamps (‘‘GSLs’’) in 10 CFR 

429.57 to change references to 10 CFR 

429.27 to reflect this reorganization. 

Specifically, 10 CFR 429.57(a)(2), (a)(5) 

and (b)(3) refer to certification 

requirements for GSILs at 10 CFR 429.27 

when they should reference 10 CFR 

429.66. This document identifies and 

corrects this error. 

Additionally, in the August 2022 

Lamps Final Rule DOE clarified the 

definition of ‘‘rated wattage’’ in 10 CFR 

430.2, which included replacing the 

references to appendix R with 

references to the relevant sections in 10 

CFR part 429. 87 FR 53618, 53629 

(August 31, 2022). However, in making 


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this update, with respect to GSILs, DOE 

inadvertently referenced 10 CFR 429.27 

instead of 10 CFR 429.66 (see paragraph 

(2) of the ‘‘rated wattage’’ definition in 

10 CFR 430.2). This document identifies 

and corrects this error. 

D. Uninterruptible Power Supplies 

On September 8, 2022, DOE 

published a final rule in the Federal 

Register amending the battery charger 

portion of the battery charger and 

uninterruptible power supply (‘‘UPS’’) 

test procedure at 10 CFR part 430, 

subpart B, appendix Y (‘‘appendix Y’’) 

(87 FR 55090, ‘‘September 2022 Battery 

Charger Final Rule’’). The final rule also 

created a new test procedure for both 

products at 10 CFR part 430, subpart B, 

appendix Y1 (‘‘appendix Y1’’) that 

expanded the scope of the battery 

charger test method and established 

separate metrics for active mode, 

standby mode, and off mode for all 

battery chargers other than 

uninterruptible power supplies. 

Manufacturers must continue to use the 

amended test procedure in appendix Y 

until the compliance date of any new 

final rule establishing amended energy 

conservation standards based on the 

newly established test procedure in 

appendix Y1 (although early 

compliance is permitted). 87 FR 55090, 

55122 (Sept. 8. 2022). After the 

compliance date of new standards for 

battery chargers other than UPSs using 

these new metrics, manufacturers may 

no longer use appendix Y and instead 

will be required to determine 

compliance using the updated test 

procedure at appendix Y1. Id. at 87 FR 

55125. 

On April 19, 2024, DOE published a 

final rule in the Federal Register (‘‘April 

2024 UPS Final Rule’’) amending the 

UPS test procedure in appendix Y and 

appendix Y1, which incorporated by 

reference relevant portions of the latest 

version of the relevant industry testing 

standard, harmonized the current DOE 

definitions with the definitions in the 

latest version of the industry standard, 

and added a no-load testing condition as 

an optional test. 89 FR 28581. 

DOE has identified a reference error 

in both DOE’s UPS enforcement 

provisions at 10 CFR 429.134(o), as well 

as appendix Y of the UPS test 

procedure. In 10 CFR 429.134(o), and in 

sections 0.1(d), 0.1(p), 0.1(q), 0.1(r), and 

4.3.4 of appendix Y, DOE incorrectly 

referenced sections 2.28.1 through 

2.28.3 of appendix Y for UPS 

architecture tests. The correct reference 

should be sections 2.27.1 through 2.27.3 

of appendix Y. DOE additionally notes 

that the UPS enforcement provisions 

should also have been updated to 

address how to determine the UPS 

architecture of a unit tested using 

appendix Y1. This document identifies 

and corrects these reference errors. 

In the April 2024 UPS Final Rule, 

DOE also updated the introductory note 

to appendix Y. 89 FR 28581, 28592 

(April 19, 2024). DOE intended to 

replace the introductory note, to add an 

introductory table, and to remove the 

introductory text to appendix Y. 

However, as written, the final rule did 

not remove the now-obsolete 

introductory text. This document 

identifies and removes this text. 

E. Water Heaters 

The test procedure established for 

consumer water heaters and residentialduty commercial water heaters is 

located in DOE’s regulations at 10 CFR 

part 430, subpart B, appendix E, 

‘‘Uniform Test Method for Measuring 

the Energy Consumption of Water 

Heaters’’ (‘‘appendix E’’), and it 

specifies that tests must be conducted 

under specific conditions, depending on 

the type of water heater being tested. On 

June 21, 2023, the DOE published a final 

rule in the Federal Register adopting an 

amended test procedure for consumer 

water heaters and residential-duty 

commercial water heaters (88 FR 40406; 

‘‘June 2023 Water Heater Final Rule’’). 

In the preamble to the June 2023 

Water Heater final rule, DOE discussed 

that it was amending the ambient air 

temperature tolerances required for tests 

conducted on all water heaters other 

than heat pump water heaters (i.e., for 

‘‘non-heat pump water heaters’’), which 

was to be specified at section 2.2.1 of 

appendix E. 88 FR 40406, 40435–40436 

(June 21, 2023). Specifically, in section 

III.C.4 of the June 2023 Water Heater 

Final Rule, DOE explained that it had 

initially proposed in a notice of 

proposed rulemaking (‘‘NOPR’’) 

published in the Federal Register on 

January 11, 2022 (87 FR 1554; ‘‘January 

2022 Water Heater NOPR’’) to update 

the ambient temperature requirement 

for non-heat pump water heaters to 

require that the ambient temperature 

during testing must be an average of 

67.5 °F ± 2.5 °F, with a maximum 

deviation of 67.5 °F ± 5 °F, as opposed 

to only a maximum deviation of 67.5 °F 

± 2.5 °F as specified in the test 

procedure at that time. In the June 2023 

Water Heater Final Rule, DOE 

concluded that, after considering 

comments on the January 2022 Water 

Heater NOPR, it was adopting the 

changes to ambient air temperature and 

relative humidity tolerances as 

proposed. 88 FR 40406, 40435–40436 

(June 21, 2023). 

However, the relevant regulatory text 

of section 2.2.1 in appendix E, as 

amended by the June 2023 Water Heater 

Final Rule, does not reflect these 

amended tolerances and improperly 

maintained the values specified under 

the previous version of DOE’s test 

procedure for the subject water heaters. 

This document identifies and corrects 

this error. 

DOE also discovered a typographical 

error in section 6.3.2 of appendix E. 

Section 6.3.2 of appendix E addresses 

the calculations for mass of water 

removed during each draw of the 24- 

hour simulated-use test. In that section, 

it is written that the volume of water 

must be multiplied by the density of the 

water during each draw of the 24-hour 

simulated-use test to arrive at the mass 

of water removed during each draw of 

the 24-hour simulated-use test. 

Throughout appendix E, the symbol r 

(the lowercase symbol for the Greek 

letter ‘‘rho’’) is used to represent 

density, including the definition for 

these values in section 6.3.2 of appendix 

E. However, the first equation in section 

6.3.2 of appendix E incorrectly uses the 

term Pdel,i, using the letter P rather than 

the symbol r. This document identifies 

and corrects this error. 

Additionally, a typographical error 

occurred which inadvertently changed 

an equation in section 6.3.6 of appendix 

E. Section 6.3.6 of appendix E addresses 

the calculation of adjusted daily water 

heating energy consumption for water 

heaters with rated storage volumes 

greater than or equal to 2 gallons, as 

well as circulating water heaters. In that 

section, it is written that the difference 

between the energy used to heat water 

in the test and the energy required to 

heat the same quantity of water over a 

67 °F temperature rise (altogether 

represented by the term QHWD) must be 

added to the adjusted daily water 

heating energy consumption value to 

arrive at the daily energy consumption 

value. However, the equation printed 

directly below shows the terms being 

subtracted instead of being added 

together as the text had indicated. The 

equation in section 6.3.6 of appendix E 

specifically reads ‘‘Qdm = Qda ¥ QHWD’’ 

instead of properly reading ‘‘Qdm = Qda

+ QHWD.’’ This document identifies and 

corrects this error as well. 

Another printing error caused the 

inadvertent deletion of the 

mathematical equation from section 

6.4.7 of appendix E that identifies how 

to calculate the annual fossil fuel energy 

consumption of a water heater with 

rated storage volume less than 2 gallons. 

The annual fossil fuel energy 

consumption for such a product is equal 

to the total annual energy consumption 


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minus the electrical energy 

consumption (adjusted from kilowatts to 

Btu per hour). Thus, the equation 

should read, ‘‘Eannual,f = Eannual ¥ (Eannual,e

× 3,412)’’ as it did in section 6.4.6 of 

appendix E prior to the June 2023 Water 

Heater Final Rule which renumbered 

the section. This document identifies 

and corrects this error. 

This document also identifies and 

corrects typographical errors pertaining 

to the amended standards for water 

heaters found at 10 CFR 430.32(d). On 

May 6, 2024, DOE published a final rule 

in the Federal Register adopting 

amended energy conservation standards 

for consumer water heaters (89 FR 

37778; ‘‘May 2024 Water Heater Final 

Rule’’). Throughout the May 2024 Water 

Heater Final Rule, DOE discussed 

transitioning standards for consumer 

water heaters to be based on an effective 

storage volume metric, as opposed to 

the previously used rated storage 

volume metric. Table I.1 in the May 

2024 Water Heater Final Rule 

demonstrated how the amended 

standards (with compliance required 

beginning on May 6, 2029) would be 

based on effective storage volume. Id. at 

89 FR 37780–37781. However, when 

adopting these standards into the 

regulatory text codified at 10 CFR 

430.32(d)(2), the table inadvertently 

maintained a reference to the rated 

storage volume metric. Id. at 89 FR 

37944. This document corrects the 

amended standards table to read 

‘‘Effective storage volume and input 

rating (if applicable)’’ instead of ‘‘Rated 

storage volume and input rating (if 

applicable)’’ at 10 CFR 430.32(d)(2). 

In addition, the current standards, 

which use the rated storage volume 

metric, remain applicable until May 6, 

2029. The May 2024 Water Heater Final 

Rule maintained these standards at 10 

CFR 430.32(d)(1). However, the adopted 

regulatory text at 10 CFR 430.32(d)(1) 

included a typographical error with 

respect to the compliance dates for the 

standards therein. Section (d)(1) of 10 

CFR 430.32 reads ‘‘The uniform energy 

factor of water heaters manufactured 

May 6, 2029 shall not be less than the 

following’’ instead of ‘‘The uniform 

energy factor of water heaters 

manufactured before May 6, 2029 shall 

not be less than the following’’ 

(emphasis added on the word ‘‘before’’). 

This document corrects this error as 

well. 

F. Portable Air Conditioners 

On May 15, 2023, DOE published a 

final rule in the Federal Register 

establishing a new test procedure for 

portable air conditioners (‘‘ACs’’) at 10 

CFR part 430, subpart B, appendix CC1, 

‘‘Uniform Test Method for Measuring 

the Energy Consumption of Portable Air 

Conditioners’’ (‘‘appendix CC1’’) (88 FR 

31102; ‘‘May 2023 Portable AC Final 

Rule’’). This test procedure must be 

used to determine compliance with any 

amended portable AC energy 

conservation standards that use the 

Annualized Energy Efficiency Ratio 

(‘‘AEER’’) metric. 88 FR 31102, 31106 

(May 15, 2023). In the May 2023 

Portable AC Final Rule, as part of 

appendix CC1, DOE adopted an updated 

seasonally adjusted cooling capacity 

(‘‘SACC’’) calculation that consists of a 

weighted average of the cooling 

capacities measured at the 95 °F and 

83 °F test conditions, each adjusted for 

duct heat transfer capacity losses and 

infiltration air capacity losses. For 

single-speed portable ACs, the adjusted 

cooling capacity for the 83 °F test 

condition is also multiplied by a load 

factor of 0.6 for single-duct units and 

0.5363 for dual-duct units. 88 FR 31102, 

31114 (May 15, 2023). 

DOE has identified an error in section 

5.1 of appendix CC1, which contains the 

calculations of adjusted cooling capacity 

for portable ACs at the 95 °F and 83 °F 

operating conditions. The identified 

error is in the formula for adjusted 

cooling capacity of single-duct singlespeed units at 83 °F (‘‘ACC83’’), which as 

published includes the term ‘‘Qinfiltration_

95,’’ This term was included erroneously, 

and the formula should have used the 

term ‘‘Qinfiltration_83’’ to reflect the 

infiltration heat transfer at 83 °F rather 

than at 95 °F as is currently shown. This 

erroneous term is also included in the 

amplifying instruction for single-speed 

single-duct units in that section, which 

should reference the Qinfiltration_83 value 

in addition to Qinfiltration_95. This 

document identifies and corrects these 

errors. 

G. Refrigerators, Refrigerator-Freezers, 

and Freezers 

On January 17, 2024, DOE published 

a direct final rule in the Federal 

Register adopting amended energy 

conservation standards for refrigerators, 

refrigerator-freezers, and freezers (89 FR 

3026; ‘‘January 2024 Refrigerator Direct 

Final Rule’’). In the publication of the 

January 2024 Refrigerator Direct Final 

Rule, DOE inadvertently updated 10 

CFR 430.32(a)(1) with a typographical 

error which states the current energy 

conservation standards for refrigerators, 

refrigerator-freezers, and freezers ‘‘apply 

to products manufactured on or before 

September 15, 2014.’’ This document 

identifies and corrects this error, with 

text that reads ‘‘standards apply to 

products manufactured on or after 

September 15, 2014.’’ 

In the January 2024 Refrigerator Direct 

Final Rule, DOE also inadvertently 

updated 10 CFR 430.32(a)(1) with 

another typographical error which lists 

the equation for the maximum energy 

use for product class 4I–BI as ‘‘10.22AV 

+ 441.4.2.’’ This document identifies 

and corrects this error, to reflect the 

correct equation of ‘‘10.22AV + 441.4.’’ 

H. Commercial Package Air 

Conditioners and Heat Pumps 

On May 20, 2024, DOE published a 

final rule in the Federal Register 

amending the current test procedures 

for air-cooled commercial unitary air 

conditioners with a rated cooling 

capacity greater than or equal to 65,000 

Btu/h, evaporatively-cooled commercial 

unitary air conditioners, and watercooled commercial unitary air 

conditioners (referred to collectively as 

‘‘CUACs and CUHPs’’) (89 FR 43986; 

‘‘May 2024 CUAC and CUHP TP Final 

Rule’’). 

As part of the publication of the May 

2024 CUAC and CUHP TP Final Rule, 

DOE updated Table 1 to paragraph (b) 

of 10 CFR 431.96, which lists the test 

procedure for all commercial air 

conditioners and heat pumps, and 

included a typographical error in one of 

the column headers. Specifically, the 

column heading in Table 1 to paragraph 

(b) erroneously stated, ‘‘Use tests, 

conditions, an procedures in’’ instead of 

‘‘Use tests, conditions and procedures 

in’’ (see 89 FR 43986, 44037 (May 20, 

2024). This document identifies and 

corrects this error. 

I. Distribution Transformers 

The applicable energy conservation 

standard requirements for distribution 

transformers are contained in DOE’s 

regulations at 10 CFR part 431, subpart 

K and are applicable to products that 

meet the definition of ‘‘distribution 

transformer’’ as codified at 10 CFR 

431.192. 10 CFR 431.192 also includes 

definitions for several kinds of 

equipment explicitly excluded from the 

definition of ‘‘distribution transformer.’’ 

On April 22, 2024, DOE published a 

final rule in the Federal Register 

adopting amended energy conservation 

standards for distribution transformers 

and adopting minor edits to the 

definitions relevant for distribution 

transformers, including clarifying edits 

to the definition of ‘‘special-impedance 

transformer’’ (89 FR 29834; ‘‘April 2024 

Transformer Final Rule’’). In the 

publication of the April 2024 

Transformer Final Rule, DOE updated 

10 CFR 431.192 with a typographical 

error in the titles of Tables 1 and 2 

relevant for the definition of ‘‘specialimpedance transformer.’’ Specifically, 


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the headings for Table 1 and Table 2 

each state, ‘‘to the Definition o ‘SpecialImpedance Transformer.’ ’’ This 

document identifies and corrects this 

error with text that reads, ‘‘to the 

Definition of ‘Special-Impedance 

Transformer.’ ’’ 

J. Walk-In Coolers and Walk-In Freezers 

On May 4, 2023, DOE published a 

final rule in the Federal Register 

amending the test procedures for walkin coolers and walk-in freezers (referred 

to as ‘‘walk-ins’’ or ‘‘WICFs’’) (88 FR 

28780; ‘‘May 2023 WICF TP Final 

Rule’’). As part of the May 2023 WICF 

TP Final Rule, DOE adopted a new test 

procedure at 10 CFR part 431, subpart 

R, appendix C1 (‘‘appendix C1’’) and a 

new efficiency metric (i.e., annual walkin energy factor 2 (‘‘AWEF2’’)), for walkin refrigeration systems. Appendix C1 

references the Air-Conditioning, 

Heating, and Refrigeration Institute 

(‘‘AHRI’’) industry test standard AHRI 

1250–2020, ‘‘2020 Standard for 

Performance Rating of Walk-in Coolers 

and Freezers.’’ 

AWEF2 is the ratio of annual total 

heat removed from a walk-in box (i.e., 

the annual walk-in box load) to the 

annual total energy input. For all 

outdoor dedicated condensing 

refrigeration systems (i.e., outdoor 

matched pairs, single-package dedicated 

systems, and dedicated condensing 

units), annual walk-in box load and 

annual energy use are determined by 

summing the walk-in box load and 

energy use for 20 different bins and 

corresponding bin temperatures 

multiplied by the number of hours in 

each bin (see, e.g., section 7.4.1 of AHRI 

1250–2020). Power values for each bin 

are interpolated or extrapolated based 

on the power measurements taken at 

three different outdoor ambient 

temperatures (95 °F, 59 °F, and 35 °F). 

For outdoor dedicated condensing 

refrigeration systems, there are three offcycle tests conducted at these same 

three outdoor ambient conditions (95 °F, 

59 °F, and 35 °F), and, therefore, there 

are three separate measurements of offcycle condensing unit power (see, e.g., 

Table 5 of AHRI 1250–2020). 

In the May 2023 WICF TP Final Rule, 

for outdoor dedicated condensing 

refrigeration systems, DOE deviated 

from the AHRI 1250–2020 calculations 

for off-cycle energy use in AWEF2 

because the equations for refrigeration 

system total power input by each bin 

temperature tj (e.g., equation 13 of AHRI 

1250–2020) do not use off-cycle power 

values that vary by bin temperature. 

Because the condensing unit off-cycle 

power may vary as a function of outdoor 

temperature, DOE adopted instructions 

for calculating condensing unit off-cycle 

power as a function of outdoor 

temperature based on the measurements 

made at the three outdoor test condition 

temperatures. 88 FR 28780, 28812– 

28813 (May 4, 2023). DOE adopted these 

provisions for all outdoor dedicated 

condensing systems, regardless of 

whether they are high-, medium-, or 

low-temperature dedicated condensing 

systems. 

Section 3.4.12.2 of appendix C1 

specifies how to calculate AWEF2 for 

high-temperature, outdoor matched 

pairs or single-packaged refrigeration 

systems. Section 3.4.12.2 erroneously 

specifies that the condensing unit offcycle power, E ̇ cu,off, is measured as 

described in section C3.5 of AHRI 1250– 

2020 and does not specify that 

condensing unit off-cycle power should 

be determined based on bin temperature 

tj per section 3.4.3.3 of appendix C1. 

This document identifies and corrects 

this error with text that specify that 

condensing unit off-cycle power for 

high-temperature, outdoor matched 

pairs or single-packaged refrigeration 

systems should be determined based on 

bin temperature tj per section 3.4.3.3 of 

appendix C1. 

K. Circulator Pumps 

On May 20, 2024, DOE published a 

final rule in the Federal Register 

establishing energy conservation 

standards for circulator pumps (89 FR 

44464; ‘‘May 2024 Circulator Pump 

Final Rule’’). In the publication of the 

May 2024 Circulator Pump Final Rule, 

DOE updated the section heading of 10 

CFR 431.465 which previously read 

‘‘Pumps energy conservation standards 

and their compliance dates’’ to read 

‘‘Circulator pumps energy conservation 

standards and their compliance dates.’’ 

This amendment was in error, as this 

section of the CFR includes energy 

conservation standards for dedicated 

purpose pool pumps and commercial 

and industrial pumps in addition to 

circulator pumps. This document 

identifies and corrects this error by 

reverting to the previous section 

heading. 

L. Commercial and Industrial Pumps 

The test procedure established for 

commercial and industrial pumps is 

located in DOE’s regulations at 10 CFR 

part 431, subpart Y, appendix A, 

‘‘Uniform Test Method for the 

Measurement of Energy Consumption of 

Pumps’’ (‘‘appendix A’’). Sections 

IV.D.2 and VI.D.2 of appendix A outline 

how to determine the best efficiency 

point (‘‘BEP’’) using the testing-based 

approach for pumps sold with motors. 

On March 24, 2023, DOE published a 

final rule in the Federal Register 

adopting an amended test procedure for 

commercial and industrial pumps (88 

FR 17934; ‘‘March 2023 Pumps Final 

Rule’’). 

DOE has identified errors in sections 

IV.D.2 and VI.D.2 of appendix A, as 

finalized in the March 2023 Pumps 

Final Rule, which erroneously reference 

‘‘pump efficiency,’’ calculated using 

‘‘pump power input,’’ in describing how 

to determine the BEP using the testingbased approach for pumps sold with 

motors; whereas, those sections should 

instead reference ‘‘overall efficiency,’’ 

calculated using ‘‘driver power input,’’ 

consistent with the wording as it 

appeared prior to the amendments of 

the March 2023 Pumps Final Rule. This 

document identifies and corrects these 

errors by reverting to the prior language. 

II. Need for Correction 

A. Automatic Commercial Ice Makers 

As published, the regulatory text in 10 

CFR 429.45(a)(2)(ii) will likely cause 

confusion and may mislead interested 

parties regarding how to properly 

determine the UCL for ACIM 

certification purposes. The relevant 

changes to 10 CFR 429.45(a)(2)(ii) 

correct the inadvertent formula error. 

Accordingly, the changes addressed in 

this document are technical in nature. 

B. Integrated Light-Emitting Diode 

Lamps 

As published, the regulatory text in 10 

CFR 429.56(b)(2) will likely cause 

confusion and may mislead interested 

parties regarding the entities permitted 

to test integrated LED lamps and the 

units to be used in making certain 

representations. The relevant changes to 

10 CFR 429.56(b)(2) correct the units 

used and the testing laboratory 

requirements. Accordingly, the changes 

addressed in this document are 

technical in nature. 

C. General Service Lamps 

As published, the erroneous section 

references in the regulatory text in 

sections (a) and (b) of 10 CFR 429.57 

and the definition of ‘‘rated wattage’’ in 

10 CFR 430.2 will likely cause 

confusion and may mislead interested 

parties regarding how to properly test 

and certify GSFLs, IRLs, and GSILs. The 

relevant changes to sections (a) and (b) 

of 10 CFR 429.57 and the definition of 

‘‘rated wattage’’ in 10 CFR 430.2 correct 

the reference errors. Accordingly, the 

changes addressed in this document are 

technical in nature. 

D. Uninterruptible Power Supplies 

As published, the now-obsolete 

introductory text in appendix Y, the 


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1See 87 FR 65856, 65895–65898 (Nov. 1, 2022). 

2See 81 FR 43404, 43420–43425 (July 1, 2016). 

3See 87 FR 53618, 53633–53637 (August 31, 

2022). 

4See 87 FR 55090, 55117–55122 (Sept. 8, 2022); 

89 FR 28581, 28589–28592 (April 19, 2024). 

5See 88 FR 40406, 40468–40471 (June 21, 2023); 

89 FR 37778, 37936–37941 (May 6, 2024). 

6See 88 FR 31102, 31122–31125 (May 15, 2023). 

7See 89 FR 3026, 3109–3112 (Jan. 17, 2024). 

8See 89 FR 4986, 44028–44032 (May 20, 2024). 

9See 89 FR 29834, 30032–30038 (April 22, 2024). 

10See 88 FR 28780; 28827–28834 (May 4, 2023) 

11See 89 FR 44464, 44532–44535 (May 20, 2024). 

12See 88 FR 17934, 17968–17972 (March 24, 

2023). 

erroneous section references in the 

regulatory text in 10 CFR 429.134(o), 

and sections 0 and 4.3.4 of appendix Y 

will likely cause confusion and may 

mislead interested parties regarding test 

procedure applicability date, and 

regarding how to properly determine 

UPS architecture. The relevant changes 

to 10 CFR 429.134(o) and sections 0 and 

4.3.4 of appendix Y correct the reference 

errors related to UPS architecture 

testing. Accordingly, the changes 

addressed in this document are 

technical in nature. 

E. Water Heaters 

As published, the regulatory text in 

sections 2.2.1, 6.3.6, and 6.4.7 of 

appendix E, will likely cause confusion 

and may mislead interested parties 

regarding how to properly conduct 

testing under DOE’s consumer water 

heaters and residential-duty commercial 

water heaters test procedure. The 

relevant changes to section 2.2.1 of 

appendix E, involving a tolerance to 

ambient temperature requirement for 

non-heat pump water heaters, was 

discussed in the June 2023 Water Heater 

Final Rule’s preamble, but it was 

inadvertently omitted from the amended 

regulatory text. The relevant changes to 

section 6.3.2 and section 6.3.6 of 

appendix E, involving the proper 

nomenclature for mass of water 

removed and the proper calculation of 

daily energy consumption, respectively, 

fix inadvertent typographical errors. The 

changes to section 6.4.7 of appendix E 

correct the inadvertent deletion of an 

equation used to compute annual fossil 

fuel energy consumption. Additionally, 

the relevant changes to the amended 

standards at 10 CFR 430.32(d)(1)–(2), 

involving the description of the 

compliance date and the storage volume 

metric, also resolve inadvertent 

typographical errors. Accordingly, the 

changes addressed in this document are 

technical in nature. 

F. Portable Air Conditioners 

As published, the regulatory text in 

section 5.1 of appendix CC1 to subpart 

B of 10 CFR part 430 will likely result 

in confusion as to the meaning of these 

terms and the references to provisions 

elsewhere in the test procedure. The 

relevant changes to section 5.1 of 

appendix CC1 correct the typographical 

errors introduced in the May 2023 

Portable AC Final Rule. Accordingly, 

the changes addressed in this document 

are technical in nature. 

G. Refrigerators, Refrigerator-Freezers, 

and Freezers 

As published, the regulatory text in 10 

CFR 430.32(a)(1) will likely cause 

confusion and may mislead interested 

parties regarding applicability of the 

current energy conservation standards 

of refrigerators, refrigerator-freezers, and 

freezers. The relevant changes to 10 CFR 

430.32(a)(1), correct the inadvertent 

typographical errors introduced in the 

January 2024 Refrigerator Direct Final 

Rule. Accordingly, the changes 

addressed in this document are editorial 

in nature. 

H. Commercial Package Air 

Conditioners and Heat Pumps 

As published, the regulatory text in 

section 10 CFR 431.96 may cause 

confusion to interested parties regarding 

how to properly conduct testing under 

DOE’s commercial air conditioner and 

heat pump test procedures. The relevant 

changes to 10 CFR 431.96 correct the 

typographical error introduced in the 

May 2024 CUAC and CUHP TP Final 

Rule. Accordingly, the changes 

addressed in this document are editorial 

in nature. 

I. Distribution Transformers 

As published, the regulatory text in 

section 10 CFR 431.192 will likely cause 

confusion to interested parties regarding 

definitions relevant to the current 

energy conservation standards of 

distribution transformers. The relevant 

changes to 10 CFR 431.192 correct the 

typographical error introduced in the 

April 2024 Transformer Final Rule. 

Accordingly, the changes addressed in 

this document are editorial in nature. 

J. Walk-In Coolers and Walk-In Freezers 

As published, the regulatory text in 

section 3.4.12.2 of 10 CFR part 431, 

subpart R, appendix C1 will likely cause 

confusion and may mislead interested 

parties regarding how to properly 

conduct testing of high-temperature, 

outdoor matched pairs or singlepackaged dedicated condensing systems 

under DOE’s walk-in refrigeration 

systems test procedure. The relevant 

changes to section 3.4.12.2 of appendix 

C1 correct the inadvertent error 

introduced in the May 2023 WICF TP 

Final Rule. Accordingly, the changes 

addressed in this document are 

technical in nature. 

K. Circulator Pumps 

As published, the title of 10 CFR 

431.465 will likely cause confusion and 

may mislead interested parties regarding 

the current energy conservation 

standards of dedicated purpose pool 

pumps and commercial and industrial 

pumps. The relevant changes to 10 CFR 

431.465 correct the misleading section 

heading introduced in the May 2024 

Circulator Pump Final Rule. 

Accordingly, the changes addressed in 

this document are editorial in nature. 

L. Commercial and Industrial Pumps 

As published, the regulatory text in 

sections IV.D.2 and VI.D.2 of appendix 

A to subpart Y of 10 CFR part 431 will 

likely cause confusion and may mislead 

interested parties regarding how to 

properly conduct testing under DOE’s 

commercial and industrial pump test 

procedure. The relevant changes to 10 

CFR part 431, subpart Y, appendix A 

correct the inadvertent error introduced 

in the March 2023 Pumps Final Rule. 

Accordingly, the changes addressed in 

this document are technical in nature. 

III. Procedural Issues and Regulatory 

Review 

DOE has concluded that the 

determinations made pursuant to the 

various procedural requirements 

applicable to the final rules discussed 

elsewhere in this document related to 

ACIMs 1; integrated LED lamps 2; 

general service lamps 3; UPSs 4; water 

heaters 5; portable ACs 6; refrigerators, 

refrigerator-freezers, freezers 7; CUACs 

and CUHPs 8; distribution 

transformers 9; WICFs 10; circulator 

pumps 11; and commercial and 

industrial pumps 12 remain unchanged 

for this final rule correcting 

amendments. 

Pursuant to the Administrative 

Procedure Act, 5 U.S.C. 553(b)(B), DOE 

finds that there is good cause to not 

issue a separate notification to solicit 

public comment on the changes 

contained in this document. Issuing a 

separate notification to solicit public 

comment would be impracticable, 

unnecessary, and contrary to the public 

interest. Neither the errors nor the 

corrections in this document affect the 

substance of the aforementioned final 

rules for the subject consumer products 

and commercial and industrial 

equipment or any of the conclusions 

reached in support of those documents. 

Additionally, given the energy 

conservation standards and test 

procedures that are being corrected are 


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a result of an extensive administrative 

record with numerous opportunities for 

public comment, DOE finds additional 

comment on the technical corrections is 

unnecessary. Therefore, providing prior 

notification and an opportunity for 

public comment on correcting objective, 

typographical errors that do not change 

the substance of the relevant energy 

conservation standards and test 

procedures serves no useful purpose. 

Further, this rule correcting 

typographical errors makes nonsubstantive changes to the subject test 

procedure and energy conservation 

standards. As such, this rule is not 

subject to the 30-day delay in effective 

date requirement of 5 U.S.C. 553(d) 

otherwise applicable to rules that make 

substantive changes. 

The following standards appear in the 

amendatory text of this document and 

were previously approved for the 

locations in which they appear: ANSI 

C78.81, ANSI C78.901, AHAM PAC–1– 

2022, AHRI 1250–2020, and HI 40.6– 

2021. 

IV. Approval of the Office of the 

Secretary 

The Secretary of Energy has approved 

publication of this final rule. 

List of Subjects 

10 CFR Part 429 

Administrative practice and 

procedure, Confidential business 

information, Energy conservation, 

Household appliances, Imports, 

Intergovernmental relations, Reporting 

and recordkeeping requirements, Small 

businesses. 

10 CFR Part 430 

Administrative practice and 

procedure, Confidential business 

information, Energy conservation, 

Household appliances, Incorporation by 

reference, Imports, Intergovernmental 

relations, Reporting and recordkeeping 

requirements, Small businesses. 

10 CFR Part 431 

Administrative practice and 

procedure, Confidential business 

information, Energy conservation, 

Incorporation by reference, Reporting 

and recordkeeping requirements. 

Signing Authority 

This document of the Department of 

Energy was signed on January 10, 2025, 

by Jeffrey Marootian, Principal Deputy 

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 January 13, 

2025. 

Treena V. Garrett, 

Federal Register Liaison Officer, U.S. 

Department of Energy. 

For the reasons stated in the 

preamble, DOE corrects parts 429, 430, 

and 431 of Chapter II of Title 10, Code 

of Federal Regulations, by making the 

following correcting amendments: 

PART 429—CERTIFICATION, 

COMPLIANCE, AND ENFORCEMENT 

FOR CONSUMER PRODUCTS AND 

COMMERCIAL AND INDUSTRIAL 

EQUIPMENT 

■ 1. The authority citation for part 429 

continues to read as follows: 

Authority: 42 U.S.C. 6291–6317; 28 U.S.C. 

2461 note. 

■ 2. Amend § 429.45 by revising 

paragraph (a)(2)(ii) to read as follows: 

§ 429.45 Automatic commercial ice 

makers. 

(a) * * * 

(2) * * * 

(ii) The upper 95 percent confidence 

limit (UCL) of the true mean divided by 

1.10, where: 

And x is the sample mean; s is the 

sample standard deviation; n is the 

number of samples; and t0.95 is the 

Student’s t-Distribution Values for a 95 

percent one-tailed confidence interval 

with n-1 degrees of freedom (from 

appendix A to this subpart). 

* * * * * 

■ 3. Amend § 429.56 by revising 

paragraph (b)(2) to read as follows: 

§ 429.56 Integrated light-emitting diode 

lamps. 

* * * * * 

(b) * * * 

(2) Values reported in certification 

reports are represented values. Pursuant 

to § 429.12(b)(13), a certification report 

must include the following public 

product-specific information: The 

testing laboratory’s ILAC accreditation 

body’s identification number or other 

approved identification assigned by the 

ILAC accreditation body, the date of 

manufacture, initial lumen output in 

lumens (lm), input power in watts (W), 

lamp efficacy in lumens per watt (lm/ 

W), CCT in kelvin (K), power factor, 

lifetime in hours (and whether value is 

estimated), and life in years (and 

whether value is estimated). For lamps 

with multiple modes of operation (such 

as variable CCT or CRI), the certification 

report must also list which mode was 

selected for testing and include detail 

such that another laboratory could 

operate the lamp in the same mode. 

Lifetime and life are estimated values 

until testing is complete. When 

reporting estimated values, the 

certification report must specifically 

describe the prediction method, which 

must be generally representative of the 

methods specified in appendix BB. 

Manufacturers are required to maintain 

records per § 429.71 of the development 

of all estimated values and any 

associated initial test data. 

* * * * * 

■ 4. Amend § 429.57 by revising 

paragraphs (a) and (b) to read as follows: 

§ 429.57 General service lamps. 

(a) Determination of represented 

value. Manufacturers must determine 

represented values, which includes 

certified ratings, for each basic model of 

general service lamp in accordance with 

following sampling provisions. 

(1) The requirements of § 429.11 are 

applicable to general service lamps, and 

(2) For general service incandescent 

lamps, use § 429.66(a); 

(3) For compact fluorescent lamps, 

use § 429.35(a); 

(4) For integrated LED lamps, use 

§ 429.56(a); 

(5) For other incandescent lamps, use 

§ 429.66(a); 

(6) For other fluorescent lamps, use 

§ 429.35(a); and 

(7) For OLED lamps and nonintegrated LED lamps, use § 429.56(a). 

(b) Certification reports. (1) The 

requirements of § 429.12 are applicable 

to general service lamps; 

(2) Values reported in certification 

reports are represented values; 

(3) For general service incandescent 

lamps, use § 429.66(b); 

(4) For compact fluorescent lamps, 

use § 429.35(b); 

(5) For integrated LED lamps, use 

§ 429.56(b); and 

(6) For other incandescent lamps, for 

other fluorescent lamps, for OLED 

lamps and non-integrated LED lamps, 

pursuant to § 429.12(b)(13), a 

certification report must include the 

following public product-specific 


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6790 Federal Register / Vol. 90, No. 12 / Tuesday, January 21, 2025 / Rules and Regulations 

information: The testing laboratory’s 

ILAC accreditation body’s identification 

number or other approved identification 

assigned by the ILAC accreditation 

body, initial lumen output, input power, 

lamp efficacy, and power factor. For 

non-integrated LED lamps, the 

certification report must also include 

the input voltage and current used for 

testing. 

* * * * * 

■ 5. Amend § 429.134 by revising 

paragraph (o)(1) to read as follows: 

§ 429.134 Product-specific enforcement 

provisions. 

* * * * * 

(o) * * * 

(1) To determine the uninterruptible 

power supply (UPS) architecture: 

(i) When testing according to 

appendix Y to subpart B of part 430, 

perform the UPS architecture tests 

specified in the definitions of VI, VFD, 

and VFI in sections 2.27.1 through 

2.27.3 of appendix Y to subpart B of 10 

CFR part 430. 

(ii) When testing according to 

appendix Y1 to subpart B of part 430, 

perform the UPS architecture tests 

specified in the definitions of VI, VFD, 

and VFI in sections 2.28.1 through 

2.28.3 of appendix Y1 to subpart B of 10 

CFR part 430. 

* * * * * 

PART 430—ENERGY CONSERVATION 

PROGRAM FOR CONSUMER 

PRODUCTS 

■ 6. The authority citation for part 430 

continues to read as follows: 

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

2461 note. 

■ 7. Amend § 430.2 by revising the 

definition of ‘‘Rated wattage’’ to read as 

follows: 

§ 430.2 Definitions. 

* * * * * 

Rated wattage means: 

(1) With respect to fluorescent lamps 

and general service fluorescent lamps: 

(i) If the lamp is listed in ANSI C78.81 

(incorporated by reference; see § 430.3) 

or ANSI C78.901 (incorporated by 

reference; see § 430.3), the rated wattage 

of a lamp determined by the lamp 

designation of Clause 11.1 of ANSI 

C78.81 or ANSI C78.901; 

(ii) If the lamp is a residential straightshaped lamp, and not listed in ANSI 

C78.81 (incorporated by reference; see 

§ 430.3), the wattage of a lamp when 

operated on a reference ballast for 

which the lamp is designed; or 

(iii) If the lamp is neither listed in one 

of the ANSI standards referenced in 

paragraph (1)(i) of this definition, nor a 

residential straight-shaped lamp, a 

represented value of electrical power for 

a basic model, determined according to 

10 CFR 429.27, and derived from the 

measured initial input power of a lamp 

tested according to appendix R to 

subpart B of this part. 

(2) With respect to general service 

incandescent lamps, a represented value 

of electrical power for a basic model, 

determined according to 10 CFR 429.66, 

and derived from the measured initial 

input power of a lamp tested according 

to appendix R to subpart B of this part. 

(3) With respect to incandescent 

reflector lamps, a represented value of 

electrical power for a basic model, 

determined according to 10 CFR 429.55, 

and derived from the measured initial 

input power of a lamp tested according 

to appendix R to subpart B of this part. 

* * * * * 

■ 8. Amend appendix E to subpart B of 

part 430 by revising sections 2.2.1, 6.3.2, 

6.3.6, and 6.4.7 to read as follows: 

Appendix E to Subpart B of Part 430— 

Uniform Test Method for Measuring the 

Energy Consumption of Water Heaters 

* * * * * 

2. 

* * * 

2.2 * * * 

2.2.1 Non-Heat Pump Water Heaters. The 

ambient air temperature shall be maintained 

at an average of 67.5 °F ± 2.5 °F (19.7 °C ± 

1.4 °C) on a continuous basis throughout the 

test, with a maximum deviation of 67.5 °F ± 

5 °F (19.7 °C ± 2.8 °C). 

* * * * * 

6. * * * 

6.3 * * * 

6.3.2 Mass of Water Removed. Determine 

the mass of water removed during each draw 

of the 24-hour simulated-use test (Mdel,i) as: 

If the mass of water removed is measured, 

use the measured value, or, if the volume of 

water removed is being measured, 

Mdel,i = Vdel,i × ρdel,i

* * * * * 

6.3.6 Adjusted Daily Water Heating Energy 

Consumption. The adjusted daily water 

heating energy consumption, Qda, takes into 

account that the ambient temperature may 

differ from the nominal value of 67.5 °F 

(19.7 °C) due to the allowable variation in 

surrounding ambient temperature of 65 °F 

(18.3 °C) to 70 °C (21.1 °C). The adjusted daily 

water heating energy consumption is 

computed as: 

Qda = Qd¥(67.5 °F¥Ta,stby,2) UA τstby,2

or, 

Qda = Qd¥(19.7 °C¥Ta,stby,2) UA τstby,2

Where: 

Qda = the adjusted daily water heating energy 

consumption, Btu (kJ). 

Qd = as defined in section 6.3.4 of this 

appendix. 

Ta,stby,2 = the average ambient temperature 

during the total standby portion, tstby,2, of 

the 24-hour simulated-use test, °F (°C). 

UA = as defined in section 6.3.4 of this 

appendix. 

Tstby,2 = the number of hours during the 24- 

hour simulated-use test when water is 

not being withdrawn from the water 

heater. 

A modification is also needed to take into 

account that the temperature difference 

between the outlet water temperature and 

supply water temperature may not be 

equivalent to the nominal value of 67 °F 

(125 °F–58 °F) or 37.3 °C (51.7 °C–14.4 °C). 

The following equations adjust the 

experimental data to a nominal 67 °F (37.3 

°C) temperature rise. 

The energy used to heat water, Btu/day (kJ/ 

day), may be computed as: 

Where: 

N = total number of draws in the 24-hour 

simulated-use test. 

Mdel,i = the mass of water removed during the 

ith draw (i = 1 to N) as calculated in 

section 6.3.2 of this appendix, lb (kg). 

Cpi = the specific heat of the water withdrawn 

during the ith draw of the 24-hour 

simulated-use test, evaluated at (Tdel,i + 

Tin,i)/2, Btu/(lb·°F) (kJ/(kg·°C)). 

Tdel,i = the average water outlet temperature 

measured during the ith draw (i = 1 to 

N), °F (°C). 

Tin,i = the average water inlet temperature 

measured during the ith draw (i = 1 to 

N), °F (°C). 

hr = as defined in section 6.3.3 of this 

appendix. 

The energy required to heat the same 

quantity of water over a 67 °F (37.3 °C) 

temperature rise, Btu/day (kJ/day), is: 

or, 


ddrumheller on DSK120RN23PROD with RULES1ER21JA25.085</GPH> ER21JA25.086</GPH> ER21JA25.087</GPH>

N ,M -C (- - QHw = L., del,i pi Tael,i -Tin,i) 

i=l T/r 

N 

QHW,670F = L Mdel,i Cp;(125°F - ssoF) 

i=l 1/r 

N 

QHW,37.3oc = L Mdel,i Cpi(s1.7oc - 14.4cc) 

i=1 T/r 
Federal Register / Vol. 90, No. 12 / Tuesday, January 21, 2025 / Rules and Regulations 6791 

The difference between these two values is: 

QHWD = QHW,67°F¥QHW

or, 

QHWD = QHW,37.3°C¥QHW

This difference (QHWD) must be added to 

the adjusted daily water heating energy 

consumption value. Thus, the daily energy 

consumption value, which takes into account 

that the ambient temperature may not be 

67.5 °F (19.7 °C) and that the temperature rise 

across the storage tank may not be 67 °F (37.3 

°C) is: 

Qdm = Qda + QHWD

* * * * * 

6.4 * * * 

6.4.7 Annual Fossil Fuel Energy 

Consumption. The annual fossil fuel energy 

consumption for water heaters with rated 

storage volumes less than 2 gallons, Eannual,f, 

is computed as: 

Eannual,f = Eannual¥(Eannual,e × 3412) 

Where: 

Eannual = the annual energy consumption as 

defined in section 6.4.5 of this appendix, 

Btu (kJ). 

Eannual,e = the annual electrical energy 

consumption as defined in section 6.4.6 

of this appendix, kWh. 

3412 = conversion factor from kWh to Btu. 

* * * * * 

■ 9. Amend appendix Y to subpart B of 

part 430 by revising Note 1 and table 

and sections 0.1(d), 0.1(p), 0.1(q), 0.1(r), 

and 4.3.4 to read as follows: 

Appendix Y to Subpart B of Part 430— 

Uniform Test Method for Measuring the 

Energy Consumption of Battery 

Chargers 

Note 1: For all Battery Chargers, including 

UPSs, compliance with the relevant standard 

in § 430.32(z) or any representation must be 

based upon results generated under the 

corresponding appendix listed in the 

following table: 

Battery chargers other than UPSs UPS 

On or After July 3, 2024 and Before October 16, 2024 ... Use appendix Y as it appeared on either 

March 7, 2023, or July 3, 2024.

Use appendix Y as it appeared on either 

March 7, 2023, or July 3, 2024. 

On or After October 16, 2024 and Before compliance 

date of any new or amended standards published any 

time after September 2022.

Use appendix Y as it appeared on July 3, 

2024..

Use appendix Y as it appeared on July 3, 

2024. 

On or After compliance date of any new or amended 

standards published any time after September 2022.

Use appendix Y1 ...................................... Use appendix Y1. 

0. * * * 

0.1 * * * 

(d) Section 5.2, UPS input specification, as 

specified in section 2.27.2 of this appendix; 

* * * * * 

(p) Section 6.2.2.7, AC input failure, as 

specified in Note to section 2.27.1 of this 

appendix; 

(q) Section 6.4, Type test procedure 

(electrical); Section 6.4.1, Input—AC input 

power compatibility; Section 6.4.1.2, Steady 

state input voltage tolerance and VI input 

independency, as specified in Note to section 

2.27.3 of this appendix; 

(r) Section 6.4.1.3, Combined input 

voltage/frequency tolerance and VFI input 

independency, as specified in Note to section 

2.27.2 of this appendix; 

* * * * * 

4. * * * 

4.3. * * * 

4.3.4 UUT Classification 

Optional Test for determination of UPS 

architecture. Determine the UPS architecture 

by performing the tests specified in the 

definitions of VI, VFD, and VFI (sections 

2.27.1 through 2.27.3 of this appendix). 

* * * * * 

■ 10. Amend appendix CC1 to subpart 

B of part 430 by revising section 5.1 to 

read as follows: 

Appendix CC1 to Subpart B of Part 

430—Uniform Test Method for 

Measuring the Energy Consumption of 

Portable Air Conditioners 

* * * * * 

5. * * * 

5.1 Adjusted Cooling Capacity. Calculate 

the adjusted cooling capacities at the 95 °F 

and 83 °F operating conditions specified 

below of the sample unit, in Btu/h, according 

to the following equations. 

For a single-duct single-speed unit: 

ACC95 = CapacitySD ¥ Qduct_SD ¥ Qinfiltration_

95

ACC83 = 0.6000 × (CapacitySD ¥ Qduct_SD ¥ 

Qinfiltration_83) 

For a single-duct variable-speed unit: 

ACC95 = CapacitySD_Full ¥ Qduct_SD_Full ¥ 

Qinfiltration_95

ACC83 = CapacitySD_Low ¥ Qduct_SD_Low ¥ 

Qinfiltration_83_Low

For a dual-duct single-speed unit: 

ACC95 = CapacityDD_95_Full ¥ Qduct_DD_95_Full

¥ Qinfiltration_95

ACC83 = 0.5363 × (CapacityDD_83 ¥ Qduct_DD_

83 ¥ Qinfiltration_83) 

For a dual-duct variable-speed unit: 

ACC95 = CapacityDD_95_Full ¥ Qduct_DD_95_Full

¥ Qinfiltration_95

ACC83 = CapacityDD_Low ¥ Qduct_DD_83_Low ¥ 

Qinfiltration_83_Low

Where: 

ACC95 and ACC 83 = adjusted cooling 

capacity of the sample unit, in Btu/h, 

calculated from testing at: 

For a single-duct single-speed unit, test 

configuration 2A in Table 2 of AHAM 

PAC–1–2022. 

For a single-duct variable-speed unit, test 

configurations 2B and 2C in Table 2 of 

AHAM PAC–1–2022. 

For a dual-duct single-speed unit, test 

configurations 1A and 1B in Table 2 of 

AHAM PAC–1–2022. 

For a dual-duct variable-speed unit: test 

configurations 1C and 1E in Table 2 of 

AHAM PAC–1–2022. 

CapacitySD, CapacitySD_Full, CapacitySD_Low, 

CapacityDD_95, CapacityDD_83, 

CapacityDD_95_Full, and CapacityDD_83_

Low = cooling capacity, in Btu/h, 

measured in testing at test configuration 

2A, 2B, 2C, 1A, 1B, 1C, and 1E of Table 

2 in section 8.1 of AHAM PAC–1–2022, 

respectively. 

Qduct_SD, Qduct_SD_Full, Qduct_SD_Low, Qduct_DD_

95, Qduct_DD_83, Qduct_DD_95_Full, and Qduct_

DD_83_Low = duct heat transfer while 

operating in cooling mode for each duct 

configuration, compressor speed (where 

applicable) and temperature condition 

(where applicable), calculated in section 

9.1 of AHAM PAC–1–2022, in Btu/h. 

Qinfiltration_95, Qinfiltration_83, and Qinfiltration_83_

Low = total infiltration air heat transfer in 

cooling mode, in Btu/h, for each of the 

following compressor speed and duct 

configuration combinations: 

For a single-duct single-speed unit, use 

Qinfiltration_95 and Qinfiltration_83 as 

calculated for a single-duct single-speed 

unit in section 9.2 of AHAM PAC–1– 

2022. 

For a single-duct variable-speed unit, use 

Qinfiltration_95 and Qinfiltration_83_Low as 

calculated for a single-duct variablespeed unit in section 9.2 of AHAM PAC– 

1–2022. 

For a dual-duct single-speed unit, use 

Qinfiltration_95 and Qinfiltration_83 as 

calculated for a dual-duct single-speed 

unit in section 9.2 of AHAM PAC–1– 

2022. 

For a dual-duct variable-speed unit, use 

Qinfiltration_95 and Qinfiltration_83_Low as 

calculated for a dual-duct variable-speed 

unit in section 9.2 of AHAM PAC–1– 

2022. 

0.6000 and 0.5363 = empirically-derived 

load-based capacity adjustment factor for 

a single-duct and dual-duct single-speed 

unit, respectively, when operating at test 

conditions 2A and 1B. 

* * * * * 

■ 11. Amend § 430.32 by revising 

paragraph (a)(1), the introductory text to 

(d)(1), and paragraph (d)(2) to read as 

follows: 

§ 430.32 Energy and water conservation 

standards and their compliance dates. 

* * * * * 

(a) * * * 


ddrumheller on DSK120RN23PROD with RULES1
6792 Federal Register / Vol. 90, No. 12 / Tuesday, January 21, 2025 / Rules and Regulations 

(1) The following standards apply to 

products manufactured on or after 

September 15, 2014, and before the 

2029/2030 compliance dates depending 

on product class (see paragraphs (a)(2) 

and (a)(3) of this section). 

TABLE 1 TO PARAGRAPH (a)(1) 

Product class 

Equations for maximum energy use 

(kWh/yr) 

based on AV 

(ft3) 

based on av 

(L) 

1. Refrigerators and refrigerator-freezers with manual defrost ....................................................................... 7.99AV + 225.0 0.282av + 225.0 

1A. All-refrigerators—manual defrost .............................................................................................................. 6.79AV + 193.6 0.240av + 193.6 

2. Refrigerator-freezers—partial automatic defrost ......................................................................................... 7.99AV + 225.0 0.282av + 225.0 

3. Refrigerator-freezers—automatic defrost with top-mounted freezer without an automatic icemaker ........ 8.07AV + 233.7 0.285av + 233.7 

3–BI. Built-in refrigerator-freezer—automatic defrost with top-mounted freezer without an automatic icemaker ........................................................................................................................................................... 9.15AV + 264.9 0.323av + 264.9 

3I. Refrigerator-freezers—automatic defrost with top-mounted freezer with an automatic icemaker without 

through-the-door ice service ........................................................................................................................ 8.07AV + 317.7 0.285av + 317.7 

3I–BI. Built-in refrigerator-freezers—automatic defrost with top-mounted freezer with an automatic icemaker without through-the-door ice service ................................................................................................ 9.15AV + 348.9 0.323av + 348.9 

3A. All-refrigerators—automatic defrost .......................................................................................................... 7.07AV + 201.6 0.250av + 201.6 

3A–BI. Built-in All-refrigerators—automatic defrost ......................................................................................... 8.02AV + 228.5 0.283av + 228.5 

4. Refrigerator-freezers—automatic defrost with side-mounted freezer without an automatic icemaker ....... 8.51AV + 297.8 0.301av + 297.8 

4–BI. Built-In Refrigerator-freezers—automatic defrost with side-mounted freezer without an automatic 

icemaker ....................................................................................................................................................... 10.22AV + 357.4 0.361av + 357.4 

4I. Refrigerator-freezers—automatic defrost with side-mounted freezer with an automatic icemaker without 

through-the-door ice service ........................................................................................................................ 8.51AV + 381.8 0.301av + 381.8 

4I–BI. Built-In Refrigerator-freezers—automatic defrost with side-mounted freezer with an automatic icemaker without through-the-door ice service ................................................................................................ 10.22AV + 441.4 0.361av + 441.4 

5. Refrigerator-freezers—automatic defrost with bottom-mounted freezer without an automatic icemaker .. 8.85AV + 317.0 0.312av + 317.0 

5–BI. Built-In Refrigerator-freezers—automatic defrost with bottom-mounted freezer without an automatic 

icemaker ....................................................................................................................................................... 9.40AV + 336.9 0.332av + 336.9 

5I. Refrigerator-freezers—automatic defrost with bottom-mounted freezer with an automatic icemaker 

without through-the-door ice service ............................................................................................................ 8.85AV + 401.0 0.312av + 401.0 

5I–BI. Built-In Refrigerator-freezers—automatic defrost with bottom-mounted freezer with an automatic 

icemaker without through-the-door ice service ............................................................................................ 9.40AV + 420.9 0.332av + 420.9 

5A. Refrigerator-freezer—automatic defrost with bottom-mounted freezer with through-the-door ice service 9.25AV + 475.4 0.327av + 475.4 

5A–BI. Built-in refrigerator-freezer—automatic defrost with bottom-mounted freezer with through-the-door 

ice service .................................................................................................................................................... 9.83AV + 499.9 0.347av + 499.9 

6. Refrigerator-freezers—automatic defrost with top-mounted freezer with through-the-door ice service ..... 8.40AV + 385.4 0.297av + 385.4 

7. Refrigerator-freezers—automatic defrost with side-mounted freezer with through-the-door ice service ... 8.54AV + 432.8 0.302av + 431.1 

7–BI. Built-In Refrigerator-freezers—automatic defrost with side-mounted freezer with through-the-door 

ice service .................................................................................................................................................... 10.25AV + 502.6 0.362av + 502.6 

8. Upright freezers with manual defrost .......................................................................................................... 5.57AV + 193.7 0.197av + 193.7 

9. Upright freezers with automatic defrost without an automatic icemaker .................................................... 8.62AV + 228.3 0.305av + 228.3 

9I. Upright freezers with automatic defrost with an automatic icemaker ........................................................ 8.62AV + 312.3 0.305av + 312.3 

9–BI. Built-In Upright freezers with automatic defrost without an automatic icemaker .................................. 9.86AV + 260.9 0.348av + 260.6 

9I–BI. Built-In Upright freezers with automatic defrost with an automatic icemaker ...................................... 9.86AV + 344.9 0.348av + 344.9 

10. Chest freezers and all other freezers except compact freezers ............................................................... 7.29AV + 107.8 0.257av + 107.8 

10A. Chest freezers with automatic defrost .................................................................................................... 10.24AV + 148.1 0.362av + 148.1 

11. Compact refrigerators and refrigerator-freezers with manual defrost ....................................................... 9.03AV + 252.3 0.319av + 252.3 

11A. Compact refrigerators and refrigerator-freezers with manual defrost .................................................... 7.84AV + 219.1 0.277av + 219.1 

12. Compact refrigerator-freezers—partial automatic defrost ......................................................................... 5.91AV + 335.8 0.209av + 335.8 

13. Compact refrigerator-freezers—automatic defrost with top-mounted freezer ........................................... 11.80AV + 339.2 0.417av + 339.2 

13I. Compact refrigerator-freezers—automatic defrost with top-mounted freezer with an automatic icemaker ........................................................................................................................................................... 11.80AV + 423.2 0.417av + 423.2 

13A. Compact all-refrigerator—automatic defrost ........................................................................................... 9.17AV + 259.3 0.324av + 259.3 

14. Compact refrigerator-freezers—automatic defrost with side-mounted freezer ......................................... 6.82AV + 456.9 0.241av + 456.9 

14I. Compact refrigerator-freezers—automatic defrost with side-mounted freezer with an automatic icemaker ........................................................................................................................................................... 6.82AV + 540.9 0.241av + 540.9 

15. Compact refrigerator-freezers—automatic defrost with bottom-mounted freezer ..................................... 11.80AV + 339.2 0.417av + 339.2 

15I. Compact refrigerator-freezers—automatic defrost with bottom-mounted freezer with an automatic icemaker ........................................................................................................................................................... 11.80AV + 423.2 0.417av + 423.2 

16. Compact upright freezers with manual defrost ......................................................................................... 8.65AV + 225.7 0.306av + 225.7 

17. Compact upright freezers with automatic defrost ..................................................................................... 10.17AV + 351.9 0.359av + 351.9 

18. Compact chest freezers ............................................................................................................................ 9.25AV + 136.8 0.327av + 136.8 

AV = Total adjusted volume, expressed in ft3, as determined in appendices A and B to subpart B of this part. 

av = Total adjusted volume, expressed in Liters. 

* * * * * 

(d) * * * 

(1) The uniform energy factor of water 

heaters manufactured before May 6, 

2029, shall not be less than the 

following: 

* * * * * 

(2) The uniform energy factor of water 

heaters manufactured on or after May 6, 

2029, shall not be less than the 

following: 


ddrumheller on DSK120RN23PROD with RULES1
Federal Register / Vol. 90, No. 12 / Tuesday, January 21, 2025 / Rules and Regulations 6793 

TABLE 14 TO PARAGRAPH (d)(2) 

Product class Effective storage volume and input rating 

(if applicable) Draw pattern Uniform energy factor * 

Gas-fired Storage Water Heater ................. <20 gal ....................................................... Very Small ............... 0.2062¥(0.0020 × Veff) 

Low .......................... 0.4893¥(0.0027 × Veff) 

Medium .................... 0.5758¥(0.0023 × Veff) 

High ......................... 0.6586¥(0.0020 × Veff) 

≥20 gal and ≤55 gal ................................... Very Small ............... 0.3925¥(0.0020 × Veff) 

Low .......................... 0.6451¥(0.0019 × Veff) 

Medium .................... 0.7046¥(0.0017 × Veff) 

High ......................... 0.7424¥(0.0013 × Veff) 

>55 gal and ≤100 gal ................................ Very Small ............... 0.6470¥(0.0006 × Veff) 

Low .......................... 0.7689¥(0.0005 × Veff) 

Medium .................... 0.7897¥(0.0004 × Veff) 

High ......................... 0.8072¥(0.0003 × Veff) 

>100 gal ..................................................... Very Small ............... 0.1482¥(0.0007 × Veff) 

Low .......................... 0.4342¥(0.0017 × Veff) 

Medium .................... 0.5596¥(0.0020 × Veff) 

High ......................... 0.6658¥(0.0019 × Veff) 

Oil-fired Storage Water Heater ................... ≤50 gal ....................................................... Very Small ............... 0.2909¥(0.0012 × Veff) 

Low .......................... 0.5730¥(0.0016 × Veff) 

Medium .................... 0.6478¥(0.0016 × Veff) 

High ......................... 0.7215¥(0.0014 × Veff) 

>50 gal ....................................................... Very Small ............... 0.1580¥(0.0009 × Veff) 

Low .......................... 0.4390¥(0.0020 × Veff) 

Medium .................... 0.5389¥(0.0021 × Veff) 

High ......................... 0.6172¥(0.0018 × Veff) 

Very Small Electric Storage Water Heater <20 gal ....................................................... Very Small ............... 0.5925¥(0.0059 × Veff) 

Low .......................... 0.8642¥(0.0030 × Veff) 

Medium .................... 0.9096¥(0.0020 × Veff) 

High ......................... 0.9430¥(0.0012 × Veff) 

Small Electric Storage Water Heater .......... ≥20 gal and ≤35 gal ................................... Very Small ............... 0.8808¥(0.0008 × Veff) 

Low .......................... 0.9254¥(0.0003 × Veff) 

Electric Storage Water Heaters .................. ≥20 and ≤55 gal (excluding small electric 

storage water heaters).

Very Small ............... 2.30 

Low .......................... 2.30 

Medium .................... 2.30 

High ......................... 2.30 

>55 gal and ≤120 gal ................................ Very Small ............... 2.50 

Low .......................... 2.50 

Medium .................... 2.50 

High ......................... 2.50 

>120 gal ..................................................... Very Small ............... 0.3574¥(0.0012 × Veff) 

Low .......................... 0.7897¥(0.0019 × Veff) 

Medium .................... 0.8884¥(0.0017 × Veff) 

High ......................... 0.9575¥(0.0013 × Veff) 

Tabletop Water Heater ................................ <20 gal ....................................................... Very Small ............... 0.5925¥(0.0059 × Veff) 

Low .......................... 0.8642¥(0.0030 × Veff) 

≥20 gal ....................................................... Very Small ............... 0.6323¥(0.0058 × Veff) 

Low .......................... 0.9188¥(0.0031 × Veff) 

Instantaneous Oil-fired Water Heater ......... <2 gal and ≤210,000 Btu/h ........................ Very Small ............... 0.61 

Low .......................... 0.61 

Medium .................... 0.61 

High ......................... 0.61 

≥2 gal and ≤210,000 Btu/h ........................ Very Small ............... 0.2780¥(0.0022 × Veff) 

Low .......................... 0.5151¥(0.0023 × Veff) 

Medium .................... 0.5687¥(0.0021 × Veff) 

High ......................... 0.6147¥(0.0017 × Veff) 

Instantaneous Electric Water Heater .......... <2 gal ......................................................... Very Small ............... 0.91 

Low .......................... 0.91 

Medium .................... 0.91 

High ......................... 0.92 

≥2 gal ......................................................... Very Small ............... 0.8086¥(0.0050 × Veff) 

Low .......................... 0.9123¥(0.0020 × Veff) 

Medium .................... 0.9252¥(0.0015 × Veff) 

High ......................... 0.9350¥(0.0011 × Veff) 

Grid-Enabled Water Heater ......................... >75 gal ....................................................... Very Small ............... 1.0136¥(0.0028 × Veff) 

Low .......................... 0.9984¥(0.0014 × Veff) 

Medium .................... 0.9853¥(0.0010 × Veff) 

High ......................... 0.9720¥(0.0007 × Veff) 

* Veff is the Effective Storage Volume (in gallons), as determined pursuant to § 429.17 of this chapter. 


ddrumheller on DSK120RN23PROD with RULES1
6794 Federal Register / Vol. 90, No. 12 / Tuesday, January 21, 2025 / Rules and Regulations 

* * * * * 

PART 431—ENERGY EFFICIENCY 

PROGRAM FOR CERTAIN 

COMMERCIAL AND INDUSTRIAL 

EQUIPMENT 

■ 12. The authority citation for part 431 

continues to read as follows: 

Authority: 42 U.S.C. 6291–6317; 28 U.S.C. 

2461 note. 

■ 13. Amend § 431.96 by revising table 

1 to paragraph (b) to read as follows: 

§ 431.96 Uniform test method for the 

measurement of energy efficiency of 

commercial air conditioners and heat 

pumps. 

* * * * * 

(b) * * * 

(2) * * * 

TABLE 1 TO PARAGRAPH (b)—TEST PROCEDURES FOR COMMERCIAL AIR CONDITIONERS AND HEAT PUMPS

Equipment Category 

Cooling capacity or 

moisture removal capacity 1

Energy efficiency 

descriptor 

Use tests, conditions, 

and procedures in 

Additional test procedure provisions as indicated in the listed 

paragraphs of this 

section 

Commercial Package 

Air Conditioning and 

Heating Equipment.

Air-Cooled, 3-Phase, 

AC and HP.

<65,000 Btu/h ........... SEER and HSPF ...... Appendix F to this 

subpart 2.

None. 

Commercial Package 

Air Conditioning and 

Heating Equipment.

Air-Cooled, 3-Phase, 

AC and HP.

<65,000 Btu/h ........... SEER2 and HSPF2 .. Appendix F1 to this 

subpart 2.

None. 

Commercial Package 

Air Conditioning and 

Heating Equipment.

Air-Cooled AC and 

HP (excluding double-duct AC and 

HP).

≥65,000 Btu/h and 

<760,000 Btu/h.

EER, IEER, and COP Appendix A to this 

subpart 2.

None. 

Commercial Package 

Air Conditioning and 

Heating Equipment.

Air-Cooled AC and 

HP (excluding double-duct AC and 

HP).

≥65,000 Btu/h and 

<760,000 Btu/h.

EER2, COP2, IVEC, 

and IVHE.

Appendix A1 to this 

subpart 2.

None. 

Commercial Package 

Air Conditioning and 

Heating Equipment.

Double-duct AC and 

HP.

≥65,000 Btu/h and 

<300,000 Btu/h.

EER, IEER, and COP Appendix A to this 

subpart 2.

None. 

Commercial Package 

Air Conditioning and 

Heating Equipment.

Double-duct AC and 

HP.

≥65,000 Btu/h and 

<300,000 Btu/h.

EER2, COP2, IVEC, 

and IVHE.

Appendix A1 to this 

subpart 2.

None. 

Commercial Package 

Air Conditioning and 

Heating Equipment.

Water-Cooled and 

EvaporativelyCooled AC.

<760,000 Btu/h ......... EER and IEER .......... Appendix A to this 

subpart 2.

None. 

Commercial Package 

Air Conditioning and 

Heating Equipment.

Water-Cooled and 

EvaporativelyCooled AC.

<760,000 Btu/h ......... EER2 and IVEC ........ Appendix A1 to this 

subpart 2.

None. 

Water-Source Heat 

Pumps.

HP ............................. <760,000 Btu/h ......... EER and COP .......... Appendix C to this 

subpart 2.

None. 

Water-Source Heat 

Pumps.

HP ............................. <760,000 Btu/h ......... IEER and ACOP ....... Appendix C1 to this 

subpart 2.

None. 

Packaged Terminal Air 

Conditioners and 

Heat Pumps.

AC and HP ................ <760,000 Btu/h ......... EER and COP .......... Paragraph (g) of this 

section.

Paragraphs (c), (e), 

and (g). 

Computer Room Air 

Conditioners.

AC ............................. <760,000 Btu/h ......... SCOP ........................ Appendix E to this 

subpart 2.

None. 

Computer Room Air 

Conditioners.

AC ............................. <760,000 Btu/h or 

<930,000 Btu/h 3.

NSenCOP ................. Appendix E1 to this 

subpart 2.

None. 

Variable Refrigerant 

Flow Multi-split Systems.

AC ............................. <65,000 Btu/h (3- 

phase).

SEER ........................ Appendix F to this 

subpart 2.

None. 

Variable Refrigerant 

Flow Multi-split Systems.

AC ............................. <65,000 Btu/h (3- 

phase).

SEER2 ...................... Appendix F1 to this 

subpart 2.

None. 

Variable Refrigerant 

Flow Multi-split Systems, Air-cooled.

HP ............................. <65,000 Btu/h (3- 

phase).

SEER and HSPF ...... Appendix F to this 

subpart 2.

None. 

Variable Refrigerant 

Flow Multi-split Systems, Air-cooled.

HP ............................. <65,000 Btu/h (3- 

phase).

SEER2 and HSPF2 .. Appendix F1 to this 

subpart 2.

None. 

Variable Refrigerant 

Flow Multi-split Systems, Air-cooled.

AC and HP ................ ≥65,000 Btu/h and 

<760,000 Btu/h.

EER and COP .......... Appendix D to this 

subpart 2.

None. 

Variable Refrigerant 

Flow Multi-split Systems, Air-cooled.

AC and HP ................ ≥65,000 Btu/h and 

<760,000 Btu/h.

IEER and COP ......... Appendix D1 to this 

subpart 2.

None. 

Variable Refrigerant 

Flow Multi-split Systems, Water-source.

HP ............................. <760,000 Btu/h ......... EER and COP .......... Appendix D to this 

subpart 2.

None. 


ddrumheller on DSK120RN23PROD with RULES1
Federal Register / Vol. 90, No. 12 / Tuesday, January 21, 2025 / Rules and Regulations 6795 

TABLE 1 TO PARAGRAPH (b)—TEST PROCEDURES FOR COMMERCIAL AIR CONDITIONERS AND HEAT PUMPS—Continued 

Equipment Category 

Cooling capacity or 

moisture removal capacity 1

Energy efficiency 

descriptor 

Use tests, conditions, 

and procedures in 

Additional test procedure provisions as indicated in the listed 

paragraphs of this 

section 

Variable Refrigerant 

Flow Multi-split Systems, Water-source.

HP ............................. <760,000 Btu/h ......... IEER and COP ......... Appendix D1 to this 

subpart 2.

None. 

Single Package 

Vertical Air Conditioners and Single 

Package Vertical 

Heat Pumps.

AC and HP ................ <760,000 Btu/h ......... EER and COP .......... Appendix G to this 

subpart 2.

None. 

Single Package 

Vertical Air Conditioners and Single 

Package Vertical 

Heat Pumps.

AC and HP ................ <760,000 Btu/h ......... EER, IEER, and COP Appendix G1 to this 

subpart 2.

None. 

Direct Expansion-Dedicated Outdoor Air 

Systems.

All .............................. <324 lbs. of moisture 

removal/hr.

ISMRE2 and ISCOP2 Appendix B to this 

subpart.

None. 

1 Moisture removal capacity applies only to direct expansion-dedicated outdoor air systems. 

2For equipment with multiple appendices listed in this table, consult the notes at the beginning of those appendices to determine the applicable appendix to use for testing. 3For upflow ducted and downflow floor-mounted computer room air conditioners, the test procedure in appendix E1 to this subpart applies to 

equipment with net sensible cooling capacity less than 930,000 Btu/h. For all other configurations of computer room air conditioners, the test procedure in appendix E1 to this subpart applies to equipment with net sensible cooling capacity less than 760,000 Btu/h. 

* * * * * 

■ 14. Amend § 431.192 by revising the 

headings to Table 1 and Table 2 to read 

as follows: 

§ 431.192 Definitions. 

* * * * * 

Table 1 to the Definition of ‘‘SpecialImpedance Transformer’’—Normal 

Impedance Ranges for LiquidImmersed Transformers 

* * * * * 

Table 2 to the Definition of ‘‘SpecialImpedance Transformer’’—Normal 

Impedance Ranges for Dry-Type 

Transformers 

* * * * * 

■ 15. Amend appendix C1 to subpart R 

of part 431 by revising section 3.4.12.2 

to read as follows: 

Appendix C1 to Subpart R of Part 431— 

Uniform Test Method for the 

Measurement of Net Capacity and 

AWEF2 of Walk-In Cooler and Walk-In 

Freezer Refrigeration Systems 

* * * * * 

3. * * * 

3.4 * * * 

3.4.12 * * * 

3.4.12.2 Calculate the AWEF2 as follows: 

Where: 

E ̇ ss(tj, in W, is the system power input for 

temperature tj, calculated as described in 

section 7.4.2 of AHRI 1250–2020; 

E ̇ cu,off(tj, in W, is the condensing unit off-cycle 

power consumption for temperature tj, 

determined as indicated in section 

3.4.3.3 of this appendix; and 

nj are the hours for temperature bin j. 

* * * * * 

■ 16. Amend § 431.465 by revising the 

section heading to read as follows: 

§ 431.465 Pumps energy conservation 

standards and their compliance dates. 

* * * * * 

■ 17. Amend appendix A to subpart Y 

of part 431 by revising sections IV.D.2 

and VI.D.2. to read as follows: 

Appendix A to Subpart Y of Part 431— 

Uniform Test Method for the 

Measurement of Energy Consumption of 

Pumps 

* * * * * 

IV. * * * 

IV.D * * * 

IV.D.2 Determine the BEP flow rate as the 

flow rate at the operating point of maximum 

overall efficiency on the pump efficiency 

curve, as determined in accordance with 

section 40.6.6.3 of HI 40.6–2021, where the 

overall efficiency is the ratio of the pump 

power output divided by the driver power 

input, as specified in Table 40.6.2 of HI 40.6– 

2021, disregarding the calculations provided 

in section 40.6.6.2 of HI 40.6–2021. 

* * * * * 

VI. * * * 

VI.D * * * 

VI.D.2 Determine the BEP flow rate as the 

flow rate at the operating point of maximum 

overall efficiency on the pump efficiency 

curve, as determined in accordance with 

section 40.6.6.3 of HI 40.6–2021, where the 

overall efficiency is the ratio of the pump 

power output divided by the driver power 

input, as specified in Table 40.6.2 of HI 40.6– 

2021, disregarding the calculations provided 

in section 40.6.6.2 of HI 40.6–2021. 

* * * * * 

[FR Doc. 2025–00987 Filed 1–17–25; 8:45 am] 

BILLING CODE 6450–01–P 


ddrumheller on DSK120RN23PROD with RULES1ER21JA25.088</GPH>