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 refrigerated bottled or canned beverage vending machines.

(b) Testing and Calculations. (1) [Reserved]

(2) The R value shall be the 1/K factor multiplied by the thickness of the panel.

(3) The K factor shall be based on ASTM C518 (incorporated by reference; see § 431.303 ).

(4) For calculating the R value for freezers, the K factor of the foam at 20 degrees Fahrenheit (average foam temperature) shall be used.

(5) For calculating the R value for coolers, the K factor of the foam at 55 degrees Fahrenheit (average foam temperature) shall be used.

CFR

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