Source: https://www.law.cornell.edu/cfr/text/10/429.53
Timestamp: 2016-08-29 20:57:11
Document Index: 39454810

Matched Legal Cases: ['art 429', '§ 429', '§ 429', '§ 429', '§ 429', '§ 429']

10 CFR 429.53 - Walk-in coolers and walk-in freezers. | US Law | LII / Legal Information Institute
CFR › Title 10 › Chapter II › Subchapter D › Part 429 › Subpart B › Section 429.53 10 CFR 429.53 - Walk-in coolers and walk-in freezers.
Refrigeration equipment: Manufacturers must determine the represented value, which includes the certified rating, for each basic model of walk-in cooler or freezer refrigeration equipment, either by testing, in conjunction with the applicable sampling provisions, or by applying an AEDM satisfying the criteria provided at § 429.70(f)(1).
(A) If the represented value for a given basic model is determined through testing, the general requirements of § 429.11 apply; and
(B) For each basic model selected for testing, a sample of sufficient size shall be randomly selected and tested to ensure that - (1)
is the sample mean; s is the sample standard deviation; n is the number of samples; and t0.95 is the t statistic for a 95% one-tailed confidence interval with n−1 degrees of freedom (from Appendix A to subpart B). And,
Any represented value of energy efficiency or other measure of energy consumption of a basic model for which consumers would favor higher values shall be less than or equal to the lower of:
The lower 95 percent confidence limit (LCL) of the true mean divided by 0.95, where:
is the sample mean; s is the sample standard deviation; n is the number of samples; and t0.95 is the t statistic for a 95% one-tailed confidence interval with n−1 degrees of freedom (from Appendix A to subpart B).
Alternative efficiency determination methods. In lieu of testing, a represented value of efficiency or consumption for a basic model of a walk-in cooler or freezer refrigeration system must be determined through the application of an AEDM pursuant to the requirements of § 429.70 and the provisions of this section, where:
WICF components other than those specified in (a)(1) of this section - (i)
(A) The general requirements of § 429.11 apply; and
is the sample mean; n is the number of samples; and xi is the i
th sample; or,
(1) The requirements of § 429.12 are applicable to manufacturers of the components of walk-in coolers and freezers (WICFs) listed in paragraph (b)(2) of this section, and;