---
kind: "section"
citation: "10 C.F.R. § 431.485"
title: "10"
number: "431.485"
heading: "Energy conservation standards."
url: "https://uscodex.org/cfr/10/431.485"
---

# §431.485. Energy conservation standards.

- (a) For the purpose of paragraphs [(b)](#b), [(c)](#c) and [(d)](#d) of this section, “THP” means dedicated-purpose-pool pump motor total horsepower.
- (b) Each dedicated-purpose pool pump motor manufactured starting on September 29, 2025, with a THP less than 0.5 THP, must have a full-load efficiency that is not less than 69 percent.
- (c) Each dedicated-purpose pool pump motor manufactured starting on the dates provided in table 1 to this [paragraph (c)](#c) with a THP greater than or equal to 0.5 THP must be a variable speed control dedicated-purpose pool pump motor, and must follow the requirements in [paragraph (d)](#d) of this section.
- (d) All dedicated-purpose pool pump motors with a THP greater than or equal to 0.5 THP and distributed in commerce with freeze protection controls, must be shipped with freeze protection disabled or with the following user-adjustable settings:
  - (1) The default dry-bulb air temperature setting is no greater than 40 °F;
  - (2) The default run time setting shall be no greater than 1 hour (before the temperature is rechecked); and
  - (3) The default motor speed (in revolutions per minute, or rpm) in freeze protection mode shall not be more than half of the maximum operating speed.

## Notes

### Amendments

[88 FR 67041, Sept. 28, 2023]

### Source

Source: 86 FR 40774, July 29, 2021, 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

[88 FR 67041, Sept. 28, 2023]