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Si04-753
5. Removal of Indoor Heat Exchanger
Procedure
Step
1. Disconnect the refrigerant
piping.
1
Hold the indoor unit up
with a piece of wood
etc..
2
Pull out the drain hose.
3
Unscrew the flare nut
for gas piping with 2
wrenches.
4
Unscrew the flare nut
for liquid piping with 2
wrenches.
Removal Procedure
Warning
Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Procedure
Removal of Indoor Heat Exchanger
Preparation
If the refrigerant leaks, repair
the spot of leaking, then
collect all refrigerant from the
unit. After conducting
vacuum drying, recharge
(R2793)
proper amount of refrigerant.
In pump-down work, be sure
to stop the compressor
before disconnecting the
refrigerant pipe. If the
refrigerant pipe is
disconnected with the
compressor operating and
the stop valve open, air may
be sucked in to generate an
Drain hose
over-pressure in refrigeration
cycle, thus resulting in pipe
(R2794)
rupture or accidental injury.
(R2795)
Liquid piping
Gas piping
(R2796)
Points
Remove the electrical box
according to the "Removal of
Electrical Box / PCB / Swing
Motor".
Caution
Caution
Place a plastic sheet under
the drain pan to prevent from
wetting the floor with
remaining drain.
If the drain hose is
embedded in the wall,
disconnect the drain hose
beforehand.
Carry out the removal works
with 2 wrenches.
When the pipes are
disconnected, protect both
the openings of pipe and unit
from entering of moisture.
15
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