Sinclair ASGE-18AI - Page 186

DC INVERTER U-MATCH AIR CONDITION MAINTENANCE
169
2. Remove the coil
of electronic
expansion valve
● Remove the coil from
electronic expansion
valve.
3. Remove the
electronic
expansion valve
● Use gas welding to
heat the pipes connected
on the two ends of
electronic expansion
valve. Then, pull them
out from 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.
4. Move the
electronic
expansion valve
away
● Remove the old
electronic expansion
valve.