10 C.F.R. § 431.485

Current through November 30, 2024
Section 431.485 - Energy conservation standards
(a) For the purpose of paragraphs (b), (c) and (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) 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) of this section.

Table 1 to Paragraph (c)

Equipment class Compliance date
Small-size (0.5 [LESS THAN EQUAL TO] THP <1.15)September 28, 2027.
Standard-size (1.15 [LESS THAN EQUAL TO] THP [LESS THAN EQUAL TO] 5)September 29, 2025.

(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.

10 C.F.R. §431.485

88 FR 67041 , 11/27/2023