Gree FLEXX36HP230V1AO - Page 86

GREE DC INVERTER HEAT PUMP CONDENSING UNIT
83
Removal of electronic expansion valve
NOTE:Before 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.