Gree GMV-S280W/A-X

GMV5 Home DC Inverter Multi VRF Units
317
5. Install a new
four-way valve.
●Put the valve in a proper position
for installation;
●Weld the valve with the pipeline.
●Before welding, cover the valve
with wet cloth to prevent internal
slide from being burnt and prevent
water from flowing in the pipeline.
●
During welding, charge nitrogen
into the pipes. The pressure
should be controlled within 0.5±0.1
kgf/cm2 (relative pressure).
6. Fix and wire the
electric box.
●Put the electric box back to
original position and screw it up.
●Connect all the wires.
7. Check and install
the front panels.
●Check the parts and connecting
wires;
●If no problem is found, hook the
front panels and tighten the
screws.
Assembly and disassembly of electric expansion valve
Precondition: No refrigerant exists in the pipeline system and the power supply has been disconnected.
Step
Diagram
Operation Instruction
1. Loosen the hooks
at the bottom of the
electric box and the
screws.
●Remove the left and right panels
and set them aside;
●Loosen the hooks at the bottom
of the electric box;
●Use a screwdriver to unscrew the
electric box.