Removal Of Electronic Expansion Valve - Daikin FTKS20CVMB(9) Service Manual

SiENBE04-512A
3.9

Removal of Electronic Expansion Valve

Procedure
Step
1. Remove the parts around
the electronic expansion
valve.
Using care not to burn the
electronic expansion valve by
the flame of gas welding
machine, remove the
following parts:
Coil of four way valve
Putty
1 Remove the coil of the
electronic expansion
valve.
2 Remove putty.
2. Remove the electronic
expansion valve.
Before starting the work,
make sure that the
refrigerant gas has been
completely removed out of
the refrigerant circulating
system.
1 Heat the 2 soldered
portions and remove
the electronic
expansion valve (body).
When heating the
soldered portion, be sure
to conduct nitrogen
replacement.
Removal Procedure
Warning Be sure to turn off all power supplies at least 10 min. before
disassembling work.
Procedure
Coil of electronic
expansion valve
Outdoor Unit / RK(X)H-C, ARK(X)H-C, R(Y)N-C
Preparation
Remove the compressor
sound insulation pad
according to the removal of
compressor sound
insulation pad.
When mounting the
electronic expansion valve,
be sure to fasten the hook of
its coil as it was.
Warning
If the refrigerant gas leaks
during work, ventilate the
room. (In case the refrigerant
(R4569)
gas is exposed to fire, it will
cause toxic gas.)
Caution
Be careful not to get burned
Putty
by the pipes heated by the
gas welding machine.
Caution
From the point of view of
environmental protection, do
not release the refrigerant
gas to the atmosphere in
repairing the refrigerant
circulating system, but
(R4520)
always collect it with use of a
collecting device.
Be careful not to burn the
heat exchanger fin.
When mounting the
electronic expansion valve,
be sure to fasten the hooks
of its coil as it was.
Points
215