Energy conservation standards and their effective dates.

CFR · 2024-01-01 · US · Title 10

(a) Each walk-in cooler or walk-in freezer manufactured on or after January 1, 2009, shall— (1) Have automatic door closers that firmly close all walk-in doors that have been closed to within 1 inch of full closure, except that this paragraph shall not apply to doors wider than 3 feet 9 inches or taller than 7 feet; (2) Have strip doors, spring hinged doors, or other method of minimizing infiltration when doors are open; (3) Contain wall, ceiling, and door insulation of at least R-25 for coolers and (i) Glazed portions of doors not to structural members and (ii) A walk-in cooler or walk-in freezer component if the component manufacturer has demonstrated to the satisfaction of the Secretary in a manner consistent with applicable requirements that the component reduces energy consumption at least as much as if such insulation requirements of subparagraph (a)(3) were to apply. (4) Contain floor insulation of at least R-28 for freezers; (5) For evaporator fan motors of under 1 horsepower and less than 460 volts, use— (i) Electronically commutated motors (brushless direct current motors); or (ii) 3-phase motors; (6) For condenser fan motors of under 1 horsepower, use— (i) Electronically commutated motors (brushless direct current motors); (ii) Permanent split capacitor-type motors; or (iii) 3-phase motors; and (7) For all interior lights, use light sources with an efficacy of 40 lumens per watt or more, including ballast losses (if any), except that light sources with an efficacy

official document · source cfr-2024 · id 10:§ 431.306