Question 20Refrigeration & AC - 1st Asst/Chief

The correct answer is D) suction side of the compressor. When the relief valve opens on a refrigeration compressor discharge line, it discharges the high-pressure refrigerant vapor to the suction side of the compressor. This is done to protect the compressor and other components from excessive pressure buildup, which could cause damage. The high-pressure refrigerant vapor is then drawn back into the compressor, allowing the system to continue operating safely. The other answer choices are incorrect because: A) the refrigerant would not be discharged to the condenser inlet, B) the liquid strainer is not the appropriate location, and C) the evaporator inlet would not be the correct destination for the discharged refrigerant.