§ 429.62 Portable air conditioners. ( a ) *Sampling plan for selection of units for testing.* ( 1 ) The requirements of § 429.11 are applicable to portable air conditioners; and
( 2 ) For each basic model of portable air conditioner, a sample of sufficient size must be randomly selected and tested to ensure that— ( i ) Any represented value of energy consumption or other measure of energy consumption of a basic model for which consumers would favor lower values is greater than or equal to the higher of: ( A ) The mean of the sample: Where: *x̄* is the sample mean; xi is the ith sample; and n is the number of units in the test sample.
Or,
( B ) The upper 95 percent confidence limit (UCL) of the true mean divided by 1.10: Where: *x̄* is the sample mean; s is the sample standard deviation; n is the number of units in the test sample; and t0.95 is the t statistic for a 95% one-tailed confidence interval with n-1 degrees of freedom.
And,
( ii ) Any represented value of the combined energy efficiency ratio or other measure of energy consumption of a basic model for which consumers would favor higher values is less than or equal to the lower of: ( A ) The mean of the sample: Where: *x̄* is the sample mean; xi is the ith sample; and n is the number of units in the test sample.
Or,
( B ) The lower 95 percent confidence limit (LCL) of the true mean divided by 0.90: Where: *x̄* is the sample mean; s is the sample standard deviation; n is the number of units in the test sample; and t0.95 is the t statistic for a 95% one-tailed confidence interval with n-1 degrees of freedom.
And,
( 3 ) When testing in accordance with appendix CC of subpart B of part 430 of this chapter, the represented value of cooling capacity for a single-speed portable AC shall be seasonally adjusted cooling capacity (“SACC”) and the represented value of cooling capacity for a variable-speed portable AC shall be full-load seasonally adjusted cooling capacity (“SACCFull”), as determined in appendix CC to subpart B of part 430 of this chapter. When testing in accordance with appendix CC1 to subpart B of part 430 of this chapter, the represented value of cooling capacity for both single-speed and variable-speed portable ACs shall be SACC, as determined in appendix CC1 to subpart B of part 430 of this chapter.
( 4 ) Where SACC is used for representation, the represented value of SACC of a basic model must be the mean of the SACC for each tested unit of the basic model. Likewise, where SACCFull is used for representation, the represented value of SACCFull of a basic model must be the mean of the SACCFull for each tested unit of the basic model. When using appendix CC to subpart B of part 430 of this chapter, round the mean SACC or SACCFull value to the nearest 50, 100, 200, or 500 Btu/h, depending on the magnitude of the calculated SACC or SACCFull, as applicable, in accordance with Table 1 of ANSI/AHAM PAC-1-2015, (incorporated by reference, see § 429.4), “Multiples for reporting Dual Duct Cooling Capacity, Single Duct Cooling Capacity, Spot Cooling Capacity, Water Cooled Condenser Capacity and Power Input Ratings”. When using appendix CC1 to subpart B of part 430 of this chapter, round SACC to the nearest 50, 100, 200, or 500 Btu/h, depending on the magnitude of the calculated SACC, in accordance with Table 1 of AHAM PAC-1-2022, (incorporated by reference, see § 429.4), “Multiples for reporting Dual Duct Cooling Capacity, Single Duct Cooling Capacity, Spot Cooling Capacity, Water Cooled Condenser Capacity and Power Input Ratings”.
( 5 ) The represented value of combined energy efficiency ratio or annualized energy efficiency ratio of a basic model must be rounded to the nearest 0.1 Btu/Wh.
( 6 ) Single-duct and dual-duct portable air conditioners distributed in commerce by the manufacturer with multiple duct configuration options that meet DOE's definitions for single-duct portable AC and dual-duct portable AC, must be rated and certified under both applicable duct configurations.
( b ) *Certification reports.* ( 1 ) The requirements of § 429.12 are applicable to single-duct and dual-duct portable air conditioners; and
( 2 ) Pursuant to § 429.12(b)(13), a certification report shall include the following public product-specific information: The combined energy efficiency ratio (CEER in British thermal units per Watt-hour (Btu/Wh)), the seasonally adjusted cooling capacity in British thermal units per hour (Btu/h), the duct configuration (single-duct, dual-duct, or ability to operate in both configurations), presence of heating function, and primary condensate removal feature (auto-evaporation, gravity drain, removable internal collection bucket, or condensate pump).
[81 FR 35264, June 1, 2016, as amended at 85 FR 1446, Jan. 10, 2020; 88 FR 31126, May 15, 2023]