Question

when a heat pump is operating in 35°f weather, the temperature of the liquid refrigerant line upstream of the expansion device may be

below 30°f

30°f to 50°f

78°f to 90°f

105° to 115°f

over 120°f

Explanation:

In typical heat - pump operation in 35°F weather, the temperature of the liquid refrigerant line upstream of the expansion device is usually in the range of 30°F to 50°F due to the heat - transfer and refrigeration cycle characteristics.

Answer:

30°F to 50°F