GREE DC INVERTER HEAT PUMP CONDENSING UNIT SERVICE MANUAL
104
Removal of Electronic Expansion Valve
Removing the electronic expansion valve, make sure there is no refrigerant in the pipeline and power is cut off.
Step Picture Work Instruction
3. Remove the
electronic
expansion valve.
Take off the coil of electronic
expansion valve.
Loosen the connection pipe
of electronic expansion valve
by welding. Then remove the
connection pipe.
NOTE: When welding the
pipe, do not let the flame bunt
the other components.
4. Take out the
electronic
expansion valve.
Take out the electronic
expansion valve.
5. Install the new
electronic
expansion valve.
Weld the connection pipe of
electronic expansion valve.
When welding the electronic
expansion valve, the valve
should be wrapped with wet
cloth.
Nitrogen welding: the
pressure of nitrogen is
0.5±0.1kgf/ cm² (relative
pressure). NOTE: When
welding the pipes, do not let
the flame burn the other
components.
Install the coil of electronic
expansion valve.
To Next Page
Loading...
