(a) Purpose. This subpart contains definitions and test procedures requirements for electric motors that are dedicated-purpose pool pump motors, pursuant to Part A-1 of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6311-6317. It also identifies materials incorporated by reference in this part. This subpart does not cover other “electric motors,” which are addressed in subpart B of this part, nor does it cover “small electric motors,” which are addressed in subpart X of this part.

(b) Scope. The requirements of this subpart apply to dedicated-purpose pool pump motors, as specified in paragraphs 1.2, 1.3 and 1.4 of UL 1004-10:2022 (incorporated by reference, see § 431.482).

(c) Incorporation by reference. In § 431.482, DOE incorporates by reference entire standards for use in this subpart; however, only the provisions of the document enumerated in an approved section are applicable within § 431.482.

(a) Certain material is incorporated by reference into this subpart with the approval of the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To enforce any edition other than that specified in this section, the Department of Energy (DOE) must publish a document in the Federal Register and the material must be available to the public. All approved incorporation by reference (IBR) material is available for inspection at DOE, and at the National Archives and Records Administration (NARA). Contact DOE at: the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Program, 1000 Independence Ave SW, EE-5B, Washington, DC 20585, (202) 586-9127, [email protected], https://www.energy.gov/eere/buildings/building-technologies-office. For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations.html or email [email protected]. The material may be obtained from the sources in the following paragraphs of this section.

(b) CSA. Canadian Standards Association, Sales Department, 5060 Spectrum Way, Suite 100, Mississauga, Ontario, L4W 5N6, Canada, 1-800-463-6727, or https://www.csagroup.org/store.

(1) CSA C747-09 (Reaffirmed 2014) (“CSA C747-09”), “Energy efficiency test method for small motors” as revised through August 2016, including Update No. 1; IBR approved for § 431.484.

(2) [Reserved]

(c) UL. Underwriters Laboratories, 333 Pfingsten Road, Northbrook, IL 60062, (841) 272-8800, or go to https://www.ul.com.

(1) UL 1004-10 (“UL 1004-10:2022”), Standard for Safety for Pool Pump Motors, Revised First Edition, Dated March 24, 2022; IBR approved for §§ 431.481 and 431.483.

(2) [Reserved]

The definitions applicable to this subpart are defined in section 2 “Glossary” of UL 1004-10:2022 (incorporated by reference, see § 431.482). In addition, the following definition applies:

Basic model means all units of dedicated purpose pool pump motors manufactured by a single manufacturer, that are within the same equipment class, have electrical characteristics that are essentially identical, and do not have any differing physical or functional characteristics that affect energy consumption or efficiency.

(a) Scope. Pursuant to section 343(a) of EPCA, this section provides the test procedures for measuring the efficiency of dedicated-purpose pool pump motors. (42 U.S.C. 6314) For purposes of this part and EPCA, the test procedures for measuring the efficiency of dedicated-purpose pool pump motors shall be the test procedure specified in paragraph (b) of this section.

(b) Testing and calculations. At such time as compliance is required with a labeling requirement or an energy conservation standard, the full-load efficiency of each dedicated-purpose pool pump motor model (inclusive of the drive, if the dedicated-purpose pool pump motor model is placed into commerce with a drive, or is unable to operate without the presence of a drive) is determined in accordance with CSA C747-09, Section 1.6 “Scope”, Section 3 “Definitions”, Section 4 “General requirements”, Section 5, “General test requirements”, and Section 6 “Test method” (incorporated by reference, see § 431.482).

(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.

(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.