2-2. Returnof Remained Refrigerant
Required equipment: Pinch pliers, hose for refrigerant recovery, vacuum pump
If refrigerant returntime of 7 minutes has passed, connect a vacuum pump at the ends of a
refrigerant returnhose outdoor. (Vacuum pump must operate outdoor.)
Operate a vacuum pump in order to returnrefrigerant remained in the pipe.
Vacuum working time should be for more than 10 minutes.
2-3. Welding Repair Step
Required equipment: Simple welding machine
Remove pinch pliers if remaining refrigerant returnis completed.
Cut the front part of a process pipe with a cutter. (Check that remaining refrigerant comes out.)
Perform welding work such as replacement of compressor and dryer, or repair of leakage part. (Be cautious of fire during welding
work.)
Heavy Repair Method of Refrigerator by Application of Refrigerant
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