Indoor Unit Si04-402A
146 Removal Procedure
1.11 Removal of 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.
You can detach the indoor
unit without removing the
assembly of the outlet grille.
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 (R410A),
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.
Use two wrenches to
disconnect pipes.
When disconnecting pipes,
cover every nozzle with caps
so as not to let dust and
moisture in.
1. Disconnect the refrigerant
piping.
1
Loosen the screws
fixed to the installation
plate.
2
Hold the indoor unit up
by a block.
Unscrew the flare nut
for piping by two
wrenches.
2. Remove the indoor unit.
1
Detach the indoor unit
from the installation
plate.
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