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Federal Register / Vol. 86, No. 243 / Wednesday, December 22, 2021 / Proposed Rules type, if available on the tested cycle type, expressed in kilowatt hours per cycle, and W = water energy consumption and is defined as:
V T K, for dishwashers using electrically heated water, and V T C/e, for dishwashers using gas-heated or oil-heated water.
Additionally, V = water consumption in gallons per cycle, T = nominal water heater temperature rise and is equal to 90 F for dishwashers that operate with a nominal 140 F inlet water temperature, and 70 F for dishwashers that operate with a nominal 120 F inlet water temperature, K = specific heat of water in kilowatt-hours per gallon per degree Fahrenheit =
0.0024, C = specific heat of water in Btus per gallon per degree Fahrenheit = 8.2, and e = nominal gas or oil water heater recovery efficiency = 0.75.
5.3 Calculation of cycle duration.
The cycle duration, t, expressed in hours, is calculated as:
t = thr Fhr + tmr Fmr + tlr Flr where, thr = the duration of the sensor heavy response cycle including the power-dry feature, tmr = the duration of the sensor medium response cycle including the power-dry feature, tlr = the duration of the sensor light response cycle including the power-dry feature, Fhr = the weighting factor based on consumer use of heavy response = 0.05, Fmr = the weighting factor based on consumer use of medium response = 0.33, and Flr = the weighting factor based on consumer use of light response = 0.62.

5. Appendix C2 to subpart B of part 430 is added to read as follows:

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Appendix C2 to Subpart B of Part 430
Uniform Test Method for Measuring the Energy Consumption of Dishwashers Note: Manufacturers must use the results of testing under this appendix C2 to determine compliance with any standards for dishwashers provided in 430.32f1 that are published after January 1, 2021.
Representations related to energy or water consumption must be made in accordance with the appropriate appendix that applies i.e., appendix C1 or appendix C2 when determining compliance with the relevant standard. Manufacturers may also use appendix C2 to certify compliance with any amended standards prior to the applicable compliance date for those standards.
0. Incorporation by Reference DOE incorporated by reference in 430.3, AHAM DW12020, AHAM DW22020, and IEC 62301 in their entirety. The following enumerated provisions of AHAM
DW12020, AHAM DW22020, and IEC
62301 are applicable to this appendix, as follows:

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1 AHAM DW12020: Uniform Test Method for Measuring the Energy Consumption of Dishwashers i Sections 1.1 through 1.30 as referenced in section 1 of this appendix;
ii Section 2.1 as referenced in sections 2
and 2.1 of this appendix;
iii Sections 2.2 through 2.3.3, sections 2.5
and 2.7, sections 2.7.2 through 2.8, and section 2.11, as referenced in section 2 of this appendix;
iv Section 2.4 as referenced in sections 2
and 2.2 of this appendix;
v Section 2.6.3 as referenced in sections 2 and 2.3 of this appendix;
vi Section 2.7.1 as referenced in sections 2 and 2.4 of this appendix;
vii Section 2.9 as referenced in sections 2 and 2.5 of this appendix;
viii Section 2.10 as referenced in sections 2 and 2.6 of this appendix;
ix Sections 3.1 through 3.2 and sections 3.5 through 3.7 as referenced in section 3 of this appendix;
x Section 3.3 as referenced in sections 3
and 3.1 of this appendix;
xi Section 3.4 as referenced in sections 3
and 3.2 of this appendix;
xii Section 4.1 as referenced in sections 4 and 4.1 of this appendix;
xiii Section 4.1.4 as referenced in sections 4 and 4.1.2 of this appendix; and xiv Section 5 as referenced in section 5
of this appendix.
2 AHAM DW22020: Household Electric Dishwashers i Section 5.10 as referenced in sections 2
and 2.8 of this appendix;
ii Sections 5.10.1 as referenced in sections 4 and 4.2 of this appendix; and iii Section 5.12.3.2 as referenced in sections 5 and 5.1 of this appendix.
3 IEC 62301: Household Electrical AppliancesMeasurement of Standby Power i Sections 4.2, 4.3.2, and 5.2 as referenced in section 2 of this appendix; and ii Sections 5.1, note 1, and 5.3.2 as referenced in section 4 of this appendix.
1. Definitions The definitions in Sections 1.1 through 1.30 of AHAM DW12020 apply to this test procedure, including the applicable provisions of AHAM DW22020 as referenced in Sections 1.5, 1.18, 1.19, 1.20, and 1.22 of AHAM DW12020.
2. Testing Conditions The testing conditions in Section 2.1
through 2.11 of AHAM DW12020, except Sections 2.6.1 and 2.6.2, and the testing conditions in Section 5.10 of AHAM DW2
2020 apply to this test procedure, including the following provisions of:
1 Sections 4.2, 4.3.2, and 5.2 of IEC 62301
as referenced in Sections 2.1, 2.2.4, and 2.5.2
of AHAM DW12020, respectively, and 2 Sections 5.3 through 5.8 of AHAM DW
22020 as referenced in Sections 2.6.3.1, 2.6.3.2, and 2.6.3.3; Section 3.4 of AHAM
DW22020, excluding the accompanying Note, as referenced in Section 2.7.1 of AHAM
DW12020; Section 5.4 of AHAM DW2
2020 as referenced in Section 2.7.4 of AHAM
DW12020; Section 5.5 of AHAM DW2

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2020 as referenced in Section 2.7.5 of AHAM
DW12020, and Section 4.1 of AHAM DW
22020 as referenced in Section 2.10.1 of AHAM DW12020. Additionally, the following requirements are also applicable.
2.1 Installation Requirements.
The installation requirements described in Section 2.1 of AHAM DW12020 are applicable to all dishwashers, with the following additions:
2.1.1 In-Sink Dishwashers.
For in-sink dishwashers, the requirements pertaining to the rectangular enclosure for under-counter or under-sink dishwashers are not applicable. For such dishwashers, the rectangular enclosure must consist of a front, a back, two sides, and a bottom. The front, back, and sides of the enclosure must be brought into the closest contact with the appliance that the configuration of the dishwasher will allow. The height of the enclosure shall be as specified in the manufacturers instructions for installation height. If no instructions are provided, the enclosure height shall be 36 inches. The dishwasher must be installed from the top and mounted to the edges of the enclosure.
2.1.2 Dishwashers without a Direct Water Line.
Manually fill the built-in water reservoir to the full capacity reported by the manufacturer, using water at a temperature in accordance with Section 2.3 of AHAM DW
12020.
2.2 Water pressure.
The water pressure requirements described in Section 2.4 of AHAM DW12020 are applicable to all dishwashers except dishwashers that do not have a direct water line.
2.3 Non-soil-sensing and soil-sensing dishwashers to be tested at a nominal inlet temperature of 50 F, 120 F, or 140 F.
The test load and soiling requirements for all non-soil-sensing and soil-sensing dishwashers shall be the same as those requirements specified in Section 2.6.3 of AHAM DW12020 for soil-sensing dishwashers. Additionally, both non-soilsensing and soil-sensing compact dishwashers that have a capacity of less than four place settings shall be tested at the rated capacity of the dishwasher and the test load shall be soiled as follows at each soil load:
a. Heavy soil load: Soil two-thirds of the place settings, excluding flatware and serving pieces rounded up to the nearest integer or one place setting, whichever is greater;
b. Medium soil load: Soil one-quarter of the place settings, excluding flatware and serving pieces rounded up to the nearest integer or one place setting, whichever is smaller;
c. Light soil load: Soil one-quarter of the place settings, excluding flatware and serving pieces rounded up to the nearest integer or one place setting, whichever is smaller, using half the quantity of soils specified for one place setting.
2.4 Test load items.
The test load items described in Section 2.7.1 of AHAM DW12020 apply to this test procedure, including the applicable provisions of AHAM DW22020, as referenced in Section 2.7.1 of AHAM DW1
2020. The following test load items may be used in the alternative.

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