Removal Of Indoor Heat Exchanger - Daikin FTXS15HVJU Service Manual

Removal of Indoor Heat Exchanger

7. Removal of Indoor Heat Exchanger
Procedure
Step
1. Disconnect the refrigerant
piping.
Hold the indoor unit up
1
with a piece of wood
etc.
2 Cover the drain hoses
with vinyl covers.
3 Unscrew the flare nut
for gas piping.
Unscrew the flare nut
4
for liquid piping.
14
Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Procedure
Drain hose
Points
Preparation
Remove the electrical box
according to "Removal of
Electrical Box".
Caution
If refrigerant leaks, repair the
spot of leaking, then collect
all refrigerant from the unit.
After conducting vacuum
(R5370)
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
(R15469)
be sucked in and may
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 pipings are
(R5372)
disconnected, protect both
the openings of pipe and unit
from entering of moisture.
(R5373)
Removal Procedure
Si04-955