Gree U-Match 5 Series Manual page 142

GREE
Note: Before removing the electronic expansion valve, make sure there is no refrigerant in the pipeline and power is cut off.
Step
4. Take out the electronic
expansion valve.
5. Install the new electronic
expansion valve.
6. Secure the electric box and
arrange the wires as
required.
7. Check and open the upper
and side panels.
Removal of electronic expansion valve
Picture
139
U-Match 5 SERIES UNIT SERVICE MANUAL
Work instruction

Take out the 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.

Put the electric box back in
place and tighten up the
screws.

Arrange the wires as original.

Check whether each
component and connection
wire is well connected.

If everything is OK, install the
upper, left and right panels.
Tighten up the screws.