SiUS041111
Indoor Unit: 09/12 Class
Removal Procedure
143
1.7
Removal of Indoor Heat Exchanger
Procedure
Warning
Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step
Procedure
Points
1. Disconnect the refrigerant
piping.
Preparation
Remove the electrical box
according to the “Removal of
Electrical Box / Vertical Blades”.
Caution
Be sure to stop the compressor
before disconnecting the
refrigerant pipe. If the refrigerant
pipe is disconnected with the
compressor running and the
stop valve opened, air may be
sucked in to generate an over-
pressure in refrigeration cycle,
thus resulting in pipe rupture or
accidental injury.
If the drain hose is embedded in
the wall, disconnect the drain
hose beforehand.
1
Remove the screws
which fix the indoor unit
to the installation plate.
2
Lift the indoor unit with
a wooden base.
3
Pull out the drain hose.
Place a plastic sheet under the
drain hose as remaining drain
may leak.
4
Disconnect the flare nut
for gas piping with 2
wrenches.
Caution
For global environmental
protection, make sure to use a
vacuum pump for air purging.
When the pipings are
disconnected, protect both
openings from moisture entering
.
(R8014)
(R8015)
Wooden base
Drain hose
Extension drain hose
Connecting wires
(R8016)
(R8017)
