§ 429.20 Residential clothes washers. ( a ) *Sampling plan for selection of units for testing.* ( 1 ) The requirements of § 429.11 are applicable to residential clothes washers; and
( 2 ) For each basic model of residential clothes washers, a sample of sufficient size shall be randomly selected and tested to ensure that— ( i ) Any represented value of the integrated water factor, the estimated annual operating cost, the energy or water consumption, or other measure of energy or water consumption of a basic model for which consumers would favor lower values shall be greater than or equal to the higher of: ( A ) The mean of the sample, where: Or,
( B ) The upper 971 ⁄ 2 percent confidence limit (UCL) of the true mean divided by 1.05, where: and
( ii ) Any represented value of the integrated modified energy factor, energy efficiency ratio, water efficiency ratio, or other measure of energy or water consumption of a basic model for which consumers would favor higher values shall be less than or equal to the lower of: ( A ) The mean of the sample, where: Or,
( B ) The lower 971 ⁄ 2 percent confidence limit (LCL) of the true mean divided by 0.95, where:
( 3 ) The clothes container capacity of a basic model reported in accordance with paragraph (b)(2) of this section shall be the mean of the measured clothes container capacity, C, of all tested units of the basic model.
( 4 ) The remaining moisture content (RMC) of a basic model reported in accordance with paragraph (b)(2) of this section shall be the mean of the final RMC value measured for all tested units of the basic model.
( b ) *Certification reports.* ( 1 ) The requirements of § 429.12 are applicable to residential clothes washers; and
( 2 ) Pursuant to § 429.12(b)(13), a certification report shall include the following public product-specific information: ( i ) For residential clothes washers tested in accordance with Appendix J1: The modified energy factor (MEF) in cubic feet per kilowatt hour per cycle (cu ft/kWh/cycle), the capacity in cubic feet (cu ft), the corrected remaining moisture content (RMC) expressed as a percentage, and, for standard-size residential clothes washers, a water factor (WF) in gallons per cycle per cubic foot (gal/cycle/cu ft).
( ii ) For residential clothes washers tested in accordance with Appendix J2: The integrated modified energy factor (IMEF) in cu ft/kWh/cycle, the integrated water factor (IWF) in gal/cycle/cu ft, the capacity in cu ft, the corrected remaining moisture content (RMC) expressed as a percentage, and the type of loading (top-loading or front-loading).
( 3 ) Pursuant to § 429.12(b)(13), a certification report must include the following additional product-specific information: A list of all cycle selections comprising the complete energy test cycle for each basic model.
( c ) *Reported values.* Values reported pursuant to this subsection must be rounded as follows: MEF and IMEF to the nearest 0.01 cu ft/kWh/cycle, WF and IWF to the nearest 0.1 gal/cycle/cu ft, RMC to the nearest 0.1 percentage point, and clothes container capacity to the nearest 0.1 cu ft.
[76 FR 12451, Mar. 7, 2011; 76 FR 24767, May 2, 2011, as amended at 77 FR 13936, Mar. 7, 2012; 77 FR 32379, May 31, 2012; 80 FR 46760, Aug. 5, 2015; 87 FR 33379, June 1, 2022]