Indoor Heat Exchanger
Si041401EB
24
Removal Procedure
9. Indoor Heat Exchanger
Warning
Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
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 and may generate an over-pressure in
refrigeration cycle, thus resulting in pipe rupture or accidental injury.
When removing or reinstalling the indoor heat exchanger, be sure to wear gloves or
wrap the indoor heat exchanger with cloths. (You may be injured by the fins.)
Caution
Be sure to conduct pump down operation before disassembling the refrigerant pipe.
If the refrigerant leaks, repair the spot of leaking, then collect all refrigerant from the
unit. After conducting vacuum drying, recharge proper amount of refrigerant.
From the viewpoint of global environmental protection, make sure to use a vacuum
pump for air purging.
Step
Procedure
Points
1. Disconnect the refrigerant
piping.
Place a plastic sheet under
the drain pan to prevent
wetting the floor with the
remaining drain.
If the drain hose is
embedded in the wall,
disconnect the drain hose
beforehand.
When the pipings are
disconnected, protect the
both openings of pipe side
and unit side from entering
of moisture.
Carry out the removal work
with 2 wrenches.
1
2
Remove the 2 screws
fixed to the installation
plate.
Hold the indoor unit up
with a wooden base.
3
4
Disconnect the gas
piping and the liquid
piping.
Detach the indoor unit
from the installation
plate.
2. Remove the indoor heat
exchanger.
1
Unfasten the hook of
the piping fixture at the
back of the indoor unit.
(R20016)
(R20017)
Gas piping
Drain hose
Liquid piping
Piping
fixture
Hook
(R20037)
