Si04-756
Removal of Indoor Heat Exchanger
Removal Procedure
37
12.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 drain hose
according to "Removal of
Drain Hose".
Caution
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.
Caution
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
over-pressure in refrigeration
cycle, thus resulting in pipe
rupture or accidental injury.
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.
1
Put a wooden block
under the indoor unit
and pull out the
refrigerant piping, drain
hose, connection
wirings, and so on.
2
Disconnect the flare
nut for gas piping with
2 wrenches.
3
Disconnect the flare
nut for liquid piping with
2 wrenches.
(R5740)
(R5741)
(R5742)
