---
kind: "section"
citation: "10 C.F.R. § 431.304"
title: "10"
number: "431.304"
heading: "Uniform test method for the measurement of energy consumption of walk-in coolers and walk-in freezers."
url: "https://uscodex.org/cfr/10/431.304"
---

# §431.304. Uniform test method for the measurement of energy consumption of walk-in coolers and walk-in freezers.

- (a) **Scope.** This section provides test procedures for measuring, pursuant to EPCA, the energy consumption of walk-in coolers and walk-in freezers.
- (b) **Testing and calculations.** Determine the energy efficiency and/or energy consumption of the specified walk-in cooler and walk-in freezer components by conducting the appropriate test procedure as follows:
  - (1) **Display panels.** Determine the energy use of walk-in cooler and walk-in freezer display panels by conducting the test procedure set forth in appendix A to this subpart.
  - (2) **Display doors and non-display doors.** Determine the energy use of walk-in cooler and walk-in freezer display doors and non-display doors by conducting the test procedure set forth in appendix A to this subpart.
  - (3) **Non-display panels and non-display doors.** Determine the R-value of insulation of walk-in cooler and walk-in freezer non-display panels and non-display doors by conducting the test procedure set forth in appendix B to this subpart.
  - (4) **Refrigeration systems.** Determine the AWEF and net capacity of walk-in cooler and walk-in freezer refrigeration systems by conducting the test procedures set forth in appendix C or C1 to this subpart, as applicable. Refer to the notes at the beginning of those appendices to determine the applicable appendix to use for testing.
    - (i) **For unit coolers—** follow the general testing provisions in sections [3.1](/cfr/10/3.1.md) and [3.2](/cfr/10/3.2.md), and the equipment-specific provisions in [section 3.3](/cfr/10/3.3.md) of appendix C or [sections 4.5 through 4.8](/cfr/10/4.5..4.8.md) of appendix C1.
    - (ii) **For dedicated condensing units—** follow the general testing provisions in sections [3.1](/cfr/10/3.1.md) and [3.2](/cfr/10/3.2.md), and the product-specific provisions in [section 3.4](/cfr/10/3.4.md) of appendix C or [sections 4.5 through 4.8](/cfr/10/4.5..4.8.md) of appendix C1.
    - (iii) **For single-packaged dedicated systems—** follow the general testing provisions in sections [3.1](/cfr/10/3.1.md) and [3.2](/cfr/10/3.2.md), and the product-specific provisions in [section 3.3](/cfr/10/3.3.md) of appendix C or [sections 4.5 through 4.8](/cfr/10/4.5..4.8.md) of appendix C1.

## Notes

### Amendments

[74 FR 12074, Mar. 23, 2009, as amended at 76 FR 21605, Apr. 15, 2011; 76 FR 33631, June 9, 2011; 76 FR 65365, Oct. 21, 2011; 79 FR 27412, May 13, 2014; 79 FR 32123, June 3, 2014; 81 FR 95802, Dec. 28, 2016; 88 FR 28839, May 4, 2023]

### Source

Source: 74 FR 12074, Mar. 23, 2009, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 6291-6317; 28 U.S.C. 2461 note.

### Source

Source: 64 FR 54141, Oct. 5, 1999, unless otherwise noted.

### Amendments

[74 FR 12074, Mar. 23, 2009, as amended at 76 FR 21605, Apr. 15, 2011; 76 FR 33631, June 9, 2011; 76 FR 65365, Oct. 21, 2011; 79 FR 27412, May 13, 2014; 79 FR 32123, June 3, 2014; 81 FR 95802, Dec. 28, 2016; 88 FR 28839, May 4, 2023]