Gree Ultra Heat GMV-V72W/A-F, Service Manual, Page: 158 / 240

Ultra Heat GMV VRF Technical Service Manual MAINTENANCE
153
5. Install a new oil
separator.
●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/cm
2
(relative pressure).
Note: Avoid nearby parts from being burnt
during welding.
●Screw the oil separator.
●Tighten the electric heating belt.
6. Fix and wire the electric
box.
●Put the electric box back to original position
and screw it.
●Connect all lines.
7. Check and install the front
panels.
●Check various parts and connecting lines.
●If no problem is found, hook the front panels
and tighten the screws.
Gas/liquid separator
Precondition: No refrigerant exists in the pipeline system and the power supply has been disconnected.
Step Diagram Operation Procedure
1. Loosen the hooks at the
bottom of the electric box
and the screws.
●Use a screwdriver to unscrew the upper and
lower front panels.
●Lift the front panels in order to take it out.
Note: Both the upper panel and lower panel are
fixed with two fasteners respectively to connect
to the side panels.