Question

the reversing valve
changes the direction of the piston in the compressor
changes the position of the expansion device
changes the suction line to the liquid line
changes the liquid line to the suction line
changes the direction of the refrigerant flow
question 25

Explanation:

A reversing valve in a refrigeration - heating system is used to change the direction of refrigerant flow, enabling the system to switch between cooling and heating modes. It does not change piston direction in compressor, position of expansion device, or directly swap suction and liquid lines in isolation; its main function is to reverse refrigerant flow.

Answer:

changes the direction of the refrigerant flow