Sinclair ASGE-18AI - Page 169

DC INVERTER U-MATCH AIR CONDITION MAINTENANCE
152
Removal and Installation of Electronic Expansion Valve
Remark :
Step Illustration Handling Instruction
1. Remove the coil of
electronic expansion valve
●Loosen the coil of
electronic expansion valve
with hand.
●Remove the coil from
electronic expansion valve.
2. Remove the electronic
expansion valve
●Use gas welding to heat
the pipes connected on the
two ends of electronic
expansion valve. Then, pull
out the electronic expansion
valve.
● Weld by charging nitrogen
for protection, with the
nitrogen pressure kept at
0.5±0.1kgf/c 󱚸 (relative
pressure).
●During heating, take care
to prevent the substances
around from burn due to
high temperature.
3. Move the electronic
expansion valve away
● Remove the old electronic
expansion valve from the
pipe.