Author Question: Split-system heat pumps have a third service valve that is not connected to either refrigerant line. ... (Read 59 times)

oliviahorn72 · **on:** Jul 24, 2018

Split-system heat pumps have a third service valve that is not connected to either refrigerant line. This extra valve:

A) Is used to read the defrost pressures during the defrost cycle.
B) Is only needed during the cooling cycle.
C) Is always connected to the low side of the system regardless of the operating cycle.
D) Is a backup in case one of the other service valves quits functioning.

Question 2

How is the type of service pressure of a recovery tank identified?

A) By the last group of numbers on the tank B) By the first numbers listed on the tank
C) By the first number after the letters DOT D) By the listed weight of the tank