Gree Ultra Heat GMV Multi VRF Heat Recovery Series Service Manual page 178

Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial
5. Install a new oil
separator.
6. Fix and wire the electric
box.
7. Check and install the front
panels.
Precondition: No refrigerant exists in the pipeline system and the power supply has been disconnected.
Step
1. Loosen the hooks at the
bottom of the electric box
and the screws.
Gas/liquid separator
Diagram
174
●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 (relative pressure).
2
Note: Avoid nearby parts from being burnt
during welding.
●Screw the oil separator.
●Tighten the electric heating belt.
●Put the electric box back to original position
and screw it.
●Connect all lines.
●Check various parts and connecting lines.
●If no problem is found, hook the front panels
and tighten the screws.
Operation Procedure
●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.
MAINTENANCE