Gree GUD71PHS1/A-S

GREE U-Match 6 SERIES UNIT SERVICE MANUAL
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4. Maintenance
4.1 System Diagram
NOTE:
The Motherboard Cooling Module only for GUD140W1/NhA-S,GUD140W1/NhA-X, GUD160W1/NhA-X.
The Pressure switch only for GUD100W1/NhA-S, GUD100W1/NhA-X, GUD125W1/NhA-S,
GUD125W1/NhA-X, GUD140W1/NhA-S, GUD140W1/NhA-X, GUD160W1/NhA-X.
4.2 Connection Pipe Vacuum Pumping
NOTICE
Make sure the outlet of vacuum pump is away from fire source and is well-ventilated.
(1) Remove the caps of the liquid valve, gas valve and also the service port.
(2) meanwhile the gas and liquid valves should be kept closed in case of refrigerant leak.
(3) Connect the hose used for evacuation to the vacuum pump.
(4) Open the switch at the lower pressure side of the manifold valve assembly and start the vacuum
pump. Meanwhile, the switch at the high pressure side of the manifold valve assembly should be
kept closed, otherwise evacuation would fail.
(5) The evacuation duration depends on the unit’s capacity, generally.
Model Time(min)
GUD35W1/NhA-S,GUD50W1/NhA-S 20
GUD71W1/NhA-S,GUD85W1/NhA-S,GUD100W1/NhA-S,GUD100W1/NhA-X 30
GUD125W1/NhA-S, GUD125W1/NhA-X, GUD140W1/NhA-X, GUD140W1/NhA-S,
GUD160W1/NhA-S, GUD160W1/NhA-X
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