The EPR valve is installed in the suction line at the evaporator outlet and it ____.
A) modulates the refrigerant vapor to the compressor
B) prevents the boiling point in the evaporator from dropping below a pre-set point
C) when used with a TX valve the system has the characteristics of maintaining a constant superheat and keeping the pressure from going too low
D) All of the above.

Question

Quizplus · Accepted Answer

The EPR valve modulates the refrigerant vapor to the compressor, prevents the boiling point in the evaporator from dropping below a pre-set point, and when used with a TX valve the system has the characteristics of maintaining a constant superheat and keeping the pressure from going too low.

The EPR Valve Is Installed in the Suction Line at the Evaporator