Engineering, 13.12.2019 18:31 cmucutie1

You are considering the purchase of a heat pump system with aresistive heating element in the air-handler for back-up during the extra cold winter months when the temperature is below the heat pump's capability. the manufacturer's technical data states the maximum current draw for the unit you are looking at is 18 amps at 240 volts, 1-phase. the circult breaker that you would have to install to carry this resistive load is:

a. 20 amp, 2-pole
b. 40 amp, 1-pole
c. 30 amp, 1-pole
d. 45 amp 2-pole
e. 25 amp. 2-pole

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