Si04-306 Indoor Unit
Removal Procedure 149
1.5 Removal of the Heat Exchanger
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step
Procedure Points
Remove the electrical
box.
Caution
If gas leaks, repair the spot of
leaking, then collect all
refrigerant from the unit. After
conducting vacuum drying,
recharge proper amount of
refrigerant.
Caution
Do not contaminate any gas
(including air) other than the
specified refrigerant (R22 or
R410A, depending on the
model) into refrigerant cycle.
(Contaminating of air or other
gas causes abnormal high
pressure in refrigerating
cycle, and this results in pipe
breakage or personal
injuries.)
Pay attention so that the
residual water in the drain
will not make the floor wet.
In case that a drain hose is
buried inside a wall, remove
it after the drain hose in the
wall is pulled out.
1. Disconnect the refrigerant
piping.
1
Hold the indoor unit up
by a piece of wood etc..
2
Unscrew the flare nut
for gas piping by two
wrenches.
Use two wrenches to
disconnected pipes.
When disconnecting pipes,
cover every nozzle with caps
so as not to let dust and
moisture in.
3
Unscrew the flare nut
for liquid piping by two
wrenches.
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