Gree UM600PH/A-M, Service Manual

Page: 120 / 121

GREE Duct type Ducted Type Split Air-Conditioner Units
120
Disassembly and Assembly of 4-way valve
Remark: Make sure that there isn’t any refrigerant in pipe system and the power supply is cut off before removal of 4-way
valve.
Step Illustration Handling Instruction
Remove electric coils of 4- way valve
Place electric coils far away from the
4-way valve to prevent the connecting
line of 4-way valve from burning when
succeeding welding.
Disconnect the pipe (site D in
illustration) of 4-way valve and
discharge pipe
Don’t leave welding slag inside pipes.
Disconnect the pipe (site E in
illustration) of 4-way valve and
connecting pipe
Don’t leave welding slag inside pipes.
Disconnect the pipe (site C in
illustration) of 4-valve and connecting
pipe
Don’t leave welding slag inside pipes.
Disconnect the pipe (site S in
illustration) of 4-way valve and
connecting pipe
Don’t leave welding slag inside pipes.
Remove the 4-way valve Remove 4-way valve after it is cooled.
Install new 4-way valve in reversed order and wrap it with wet cloth before welding.