Gree FLEXX Series - Page 94

GREE DC INVERTER HEAT PUMP CONDENSING UNIT
91
Removal of 4-way valve
NOTE:Before removing the 4-way valve, make sure refrigerant is fully discharged from the unit and power is cut off.
Step
Picture
Work instruction
2. Break off the connection
pipes from the 4-way valve.
 Use a soldering gun to
loosen the 4 joints on the
4-way valve and then
remove the connection
pipes.
NOTE:When welding the
pipes, the 4-way valve
should be wrapped with wet
cloth for cooling. Do not let
the flame burn the other
components.
3. Replace the 4-way valve and
connect it to the connection
pipes.
 Replace the 4-way valve
and then use a soldering
gun to weld the 4 joints of
the 4-way valve.
Note: When welding the
pipes, the 4-way valve
should be wrapped with wet
cloth for cooling. Do not let
the flame burn the other
components.
4. Install the coil of 4-way valve.
 Tighten the screws of the
coil of 4-way valve with a
screwdriver.