The boiling point of a refrigerant should be low enough at atmospheric pressure to keep the system pressure above 0 psig when operating at low temperatures.

Question

Quizplus · Accepted Answer

This is true because if the boiling point of the refrigerant is too high, it will not be able to absorb enough heat to maintain a positive system pressure at low temperatures. This can lead to undesirable effects such as compressor damage and system failure. Therefore, a low boiling point is necessary for proper refrigerant operation.

The Boiling Point of a Refrigerant Should Be Low Enough