Indoor Heat Exchanger - Daikin CTXG25K2VMW Service Manual

Si041256

10.Indoor Heat Exchanger

Warning
Caution
Step
1. Disconnect the refrigerant
piping.
1 Remove the 2 screws
fixed to the installation
plate.
2 Hold the indoor unit up
with a block.
Disconnect the gas
3
piping and the liquid
piping.
Removal Procedure
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.
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.
When removing or reinstalling the indoor heat exchanger, be sure to wear protective
gloves or wrap the indoor heat exchanger with cloths. (You may be injured by the fins.)
Procedure
Block
Indoor Heat Exchanger
Points
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.
When the pipings are
disconnected, protect the
both openings of pipe side
and unit side from entering
of moisture.
(R12140)
Carry out the removal work
with 2 wrenches.
(R12141)
17