Gree GMV5E Series Service Manual page 280

GREE
Precondition: No refrigerant exists in the pipeline system and the power supply has been disconnected.
Step
3. Disassemble the oil
separator.
4. Remove the oil
separator.
5. Install a new oil
separator.
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
Oil separator
Diagram
276
Operation Procedure
● Use a screwdriver to unscrew
the oil separator.
● Loosen the electric heating belt.
●Heat the four pipe joints of the
oil separator by welding and
remove the connecting pipes.
Note: Avoid nearby parts from
being burnt during welding.
●Remove the oil separator from
the chassis.
●Weld the four pipe joints with
the oil separator.
During welding, charge nitrogen
into the pipes. The pressure
should be controlled within
0.5± 0.1 kgf/cm2 (relative
pressure).
Note: Avoid nearby parts from
being burnt during welding.
●Screw the oil separator.
● Tighten the electric heating belt.