Question

question 22 1 pts when a heat pump is operating in 35°f weather, the temperature of the liquid refrigerant line downstream of the expansion device may be 15 to 20°f 30°f to 50°f 70°f to 90°f 100°f to 120°f over 120°f

Explanation:

When a heat - pump operates in 35°F weather, the refrigerant undergoes a pressure drop across the expansion device. This causes a significant temperature drop. Typically, the temperature of the liquid refrigerant downstream of the expansion device is in the range of 15 - 20°F.

Answer:

15 to 20°F