Daikin FTYN25DV3B ATY20DV2, Service Manual

Page: 95 / 128

Indoor Unit SiBE01-503
86 Removal Procedure
1.5 Removal of Heat Exchanger
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
„
Conduct pump-down
operation.
„
Remove the installation
frame from the mounting
plate.
Warning
If gas leaks, repair the leak
location, then connect all
refrigerant from the unit.
Conduct vacuum drying, and
charge proper amount of
refrigerant.
Warning
Do not mix any gas (including
air) other than the specified
refrigerant (R22) into
refrigerating cycle.
(Mixing of air or other gas
causes abnormal
temperature rise in
refrigerating cycle, and this
results in pipe rupture or
personal injuries.)
„
Pay attention so that the
residual drain will not make
a floor dirty.
„
In case that a drain hose is
buried inside a wall, remove
it after the drain hose in the
wall is pulled out.
1
Remove the drain hose .
Make curing so that the
residual drain water will
not leak out.
2
Disengage the
insulation tube and
disconnect the flare
nuts for the
gas piping
and the liquid piping .
„
Use two wrenches to
disconnect pipe.
„
After pipes are
disconnected, close all pipe
openings with caps to
prevent dust and moisture
from entering pipes.
3
Disengage the indoor
unit from the installation
plate.