Before opening any part of the air conditioning system refrigerant must:

Question

Quizplus · Accepted Answer

Refrigerant must be recovered using a recovery machine before opening any part of the air conditioning system. Evacuation may be necessary after the repair is complete, but it is not the first step. Venting refrigerant to the atmosphere is illegal and harmful to the environment. Allowing the refrigerant to cool down is not necessary for opening the system, but may be done for safety reasons.

Before Opening Any Part of the Air Conditioning System Refrigerant