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5 Troubleshooting
Operation step
Vacuum pumping
1, Connect high pressure
connector to the charge
pipe(φ6mm),
2, Connect the connector
to the plug,
3, Close V2 and V5 Valves,
open V1,V3, andV4.
4, Start the pump.
Vacuum pumping time is
not less than 60 minutes.
charge pipe
High pressure
connector
Refrigerant
tank
V5
Picture
Plug
V1
Pump
Pressure gage
V2
V3 V4
38
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