Gree GMV5E Series Service Manual page 285

GREE
Precondition: No refrigerant exists in the pipeline system and the power supply has been disconnected.
Step
5. Install a new heat
exchanging board.
6. Fix and wire the
electric box.
7. Check and install the
front panels.
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
Heat exchanging board
Diagram
281
Operation Procedure
●Screw the support of the heat
exchanging board and fix the board
onto the chassis.
●Put the heat exchanging board
based on the position of the suction
and discharge pipes and weld the
pipes with the heat exchanging board.
●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.
●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.