210
DC Inverter Multi
VRF Service Manual
Removal and Installation of Electronic Expansion Valve
Remark: Before removing the electronic expansion valve, make sure that there is no refrigerant inside the pipe system and that the power has been cut
off.
Step Illustration Handling Instruction
1. Remove the
coil of electronic
expansion valve
● Remove the left and right panels.
●.Remove the coil of electronic
expansion valve.
2. Disassemble
the electronic
expansion valve
Solder the spots
● Solder off the connecting pipe
of electronic expansion valve.
Note: do not burn the other
parts during soldering.
3. Take out
the electronic
expansion valve.
● Remove the electronic expansion valve.
4. Replace
the electronic
expansion valve.
Weld the spots
● Weld the connecting pipe of
the elctronic expansion valve.
● Wrap the valve with wet cloth when
welding the electronic expansion valve.
●Charge nitrogen for welding,
whose pressure is 0.5±0.1kgf/
c (relative pressure).
Note: do not burn the other
parts during soldering.
5. Mount the coil
of the electronic
expansion valve.
Electronic
Expansion Valve.
● Mount coil of electronic
expansion valve.
6. Mount front panel
● Check if the parts and connecting
wire is well mounted.
● Fix the left and right front panels.
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