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.
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.
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