GREE U-Match 5 SERIES UNIT SERVICE MANUAL
101
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
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/ c
㎡
(relative pressure). Note: When
welding the pipes, do not let the
flame burn the other components.
●Install the coil of electronic
expansion valve.
6. Secure the electric box and
arrange the wires as required.
●Put the electric box back in place
and tighten up the screws.
●Arrange the wires as original.
