Assembly And Disassembly Of Electric Expansion Valve - Gree GMV-S120WL/A-S Service Manual

5. Install a new
four-way valve.
6. Fix and wire the
electric box.
7. Check and install
the front panels.

Assembly and disassembly of electric expansion valve

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.
GMV5 Home DC Inverter Multi VRF Units
Diagram
317
●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/cm (relative pressure).
2
●Put the electric box back to
original position and screw it up.
●Connect all the wires.
●Check the parts and connecting
wires;
●If no problem is found, hook the
front panels and tighten the
screws.
Operation Instruction
●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.