Daikin FTKS09JV2S User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
2.0/2.2/2.5/2.8/3.5/3.6/4.1/4.2/4.6/
5.0 kW Class
7000/9000/12000/15000 Btu/h Class
Si041252EE

Service Manual
Removal Procedure
Indoor Unit
zCooling Only zHeat Pump
FTKS09JV2S ATXS20G2V1B
FTKS12JV2S ATXS25G2V1B
ATXS35G2V1B
FTKS20KVMA ATXS42G2V1B
FTKS25KVMA ATXS50G2V1B
FTKS35KVMA
CTXS07LVJU
FTKS22MVLT FTXS09LVJU
FTKS28MVLT FTXS12LVJU
FTKS36MVLT
FTXS20KVMA
FTKM09NV2S FTXS25KVMA
FTKM12NV2S FTXS35KVMA
FTKM15NV2S
FTXS22MVLT
FTKM25NVM FTXS28MVLT
FTKM35NVM FTXS36MVLT
FTKM42NVM
FTXM22NVLT
FTKM20PVMA FTXM28NVLT
FTKM25PVMA FTXM36NVLT
FTKM35PVMA
FTKM46PVMA FTXM20PVMA
FTXM25PVMA
FTXM35PVMA
FTXM46PVMA
FTXV22NVLT
FTXV28NVLT
FTXV36NVLT
FTXV41NVLT

Si041252EE
Removal Procedure 1
Table of Contents
1. Air Filters .................................................................................................2
2. Front Panel..............................................................................................3
3. Front Grille ..............................................................................................4
4. Horizontal Blades ....................................................................................5
5. Vertical Blade ASSYs..............................................................................6
6. Electrical Box ..........................................................................................8
7. PCBs .....................................................................................................10
8. Swing Motors ........................................................................................13
9. Indoor Heat Exchanger .........................................................................16
10.Fan Motor..............................................................................................18
Note: The illustrations may be slightly different depending on the model.

Air Filters Si041252EE
2Removal Procedure
1. Air Filters
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1. Remove the air filters. The air filter is not marked
for difference between the
right and left sides.
Insert the air filter with the
"FRONT" mark faced up.
The air filter can be set
easily by inserting it along
the guides.
Be sure to insert the hooks
when reassembling the air
filter.
1
2
3
Open the front panel.
Release the air filter
from the hooks of the
front panel. (2 for each
filter.)
Pull out the air filter
downward and remove
it.
2. Remove the Titanium
apatite photocatalytic air-
purifying filters.
1 Remove the Titanium
apatite photocatalytic
air-purifying filter ASSY
by unfastening the 2
projections from the
back of the air filter.
2 Unfasten the 5 hooks
and remove the
Titanium apatite
photocatalytic air-
purifying filter from its
frame.
To prevent the damage, do
not remove the Titanium
apatite photocatalytic air-
purifying filter from the frame
when cleaning it.
The Titanium apatite
photocatalytic air-purifying
filter is not marked for
difference between the right
and left sides.
(R21149)
Air filterFront panel
(R17096)
Projection
Air filter
Titanium apatite
photocatalytic
air-purifying filter ASSY
(R13174)

Si041252EE Front Panel
Removal Procedure 3
2. Front Panel
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1 Open the front panel
over the position where
it stops.
2
3
4
Slide the front panel to
the right and release
the left rotary shaft.
Release the right rotary
shaft in the same way.
Remove the front panel.
When reassembling the front
panel, fit the right and left
rotary shafts one by one into
the grooves and fully push
them into position.
(R7906)
Front panel
(R7907)
Rotary shaft

Front Grille Si041252EE
4Removal Procedure
3. Front Grille
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1 Remove the screw and
remove the service
cover.
2
3
Remove the 2 screws.
Unfasten the 3 hooks at
the top.
The convex marks (...) on
the front grille indicate the
position of the hooks.
4 Pull out the upper part
of the front grille and lift
up the lower part, and
then remove the front
grille.
When reassembling, make
sure that all the 3 hooks are
fastened as they were.
(R7911)
Service cover
(R18697)
Hook
(R12715)
(R12268)

Si041252EE Horizontal Blades
Removal Procedure 5
4. Horizontal Blades
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1 Release the center
shaft while bending the
horizontal blade (large)
slightly.
The size of the blades is
different. When
reassembling, mount the
large horizontal blade to the
upper position and the small
horizontal blade to the lower
position.
Do not put them in the wrong
place.
2 Release the left shaft.
3
4
Release the right shaft
and remove the
horizontal blade (large).
Remove the horizontal
blade (small) in the
same way.
Installation procedure
1. Since the key pattern hook is
provided, rotate the blade
and fit it to the right shaft
first.
2. Fit the blade to the center
and left shafts.
(R18242)
Horizontal blade (large)
Horizontal blade (small)
(R13073)
(R18243)
Right shaft

Vertical Blade ASSYs Si041252EE
6Removal Procedure
5. Vertical Blade ASSYs
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1. Remove the fan guards. Some models have no fan
guard.
1 Unfasten the 2 hooks at
the lower part of the fan
guard with a flat
screwdriver.
2
3
Remove the fan guard.
Remove the other fan
guard in the same way.
2. Remove the vertical blade
ASSYs.
1 Detach the pivot from
the interlock shaft for
vertical blades with a
flat screwdriver.
2 Remove the interlock
rod.
(R13751)
(R8079)
(R13092)
Vertical blade ASSY Pivot
Interlock
shaft
(R13093)
Interlock rod

Si041252EE Vertical Blade ASSYs
Removal Procedure 7
3 Unfasten the 3 hooks at
the upper 3 positions by
pressing them with a
flat screwdriver.
4
5
Remove the vertical
blade ASSY.
Remove the other
vertical blade ASSY in
the same way.
Each vertical blade ASSY
has 5 fins. It is impossible to
replace only one fin.
The vertical blade ASSY is
not marked for difference
between right and left.
Step Procedure Points
(R13094)
(R13095)
Hook
Vertical blade

Electrical Box Si041252EE
8Removal Procedure
6. Electrical Box
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1
2
Remove the screw and
remove the wire fixture.
Remove the 4 screws
on the terminal board
and disconnect the
connecting wire.
For U.S. models
When reassembling, make
sure that the connecting wire
is passed through the
conduit hole at the bottom of
the unit.
3 Disconnect the
connector [S1].
[S1]: fan motor
4 Disconnect the
connector [S41].
[S41]: swing motors
5 Release the harness for
the swing motors from
the hook.
When reassembling, be sure
to put the harness for the
swing motors behind the
hook.
(R18696)
Electrical box
Wire
fixture
Terminal
board
Connecting
wire
(R13499)
[S1]
(R18694)
[S41]
(R18695)
Hook

Si041252EE Electrical Box
Removal Procedure 9
6 Pull out the indoor heat
exchanger thermistor.
The position of the indoor
heat exchanger thermistor
varies by model.
Be careful not to lose the clip
of the thermistor.
7
8
Remove the screw and
detach the earth /
ground wire.
Remove the screw of
the electrical box.
9 Lift up the electrical box
and pull it out.
Unfasten the hook at the
back.
There is a hook also at the
lower part of the back. When
reassembling the electrical
box, make sure that it is
securely fastened.
Step Procedure Points
(R7937)
Indoor heat exchanger thermistor
Clip
(R11268)
(R18877)
Earth / ground
wire
(R17701)
Hook

PCBs Si041252EE
10 Removal Procedure
7. PCBs
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1. Remove the shield plate.
1 The figure shows the
parts of the electrical
box.
2
3
4
Unfasten the 2 hooks
(upper).
Unfasten the hook
(back).
Lift up the shield plate
to unfasten the 2 hooks
(lower).
2. Remove the signal
receiver unit.
1 Unfasten the 3 hooks.
2 Unfasten the hook on
the opposite side.
(R21135)
Shield plate
Signal receiver unit
(R21136)
Shield plate
Hook (back)
Hook (lower)
Hook (upper)
(R21137)
(Back)(Front)
Signal receiver unit
(R17703)
Hook

Si041252EE PCBs
Removal Procedure 11
3 Remove the signal
receiver unit.
3. Remove the
INTELLIGENT EYE
sensor PCB.
1
2
Unfasten the 3 hooks
and remove the
INTELLIGENT EYE
sensor PCB.
Disconnect the
connector [S26].
4. Remove the signal
receiver PCB.
1
2
Unfasten the 3 hooks
and remove the signal
receiver PCB.
Disconnect the
connector [S48].
Step Procedure Points
(R8088)
Signal receiver unit
(R21138)
INTELLIGENT EYE
sensor PCB
[S26]
Hook
Hook
(R21139)
Signal
receiver
PCB
[S48]
Hook
Hook

PCBs Si041252EE
12 Removal Procedure
5. Remove the display PCB. The display PCB faces the
rear side of the signal
receiver unit.
1 Unfasten the 4 hooks
and remove the display
PCB.
2 Disconnect the
connector [S49].
[S49]: control PCB
6. Remove the control PCB.
1 Unfasten the 2 lower
hooks of the control
PCB.
2 Lift up the bottom of the
control PCB and pull it
out.
The control PCB is also held
by 2 upper hooks. When
reassembling, be sure to fit
all the 4 hooks.
Step Procedure Points
(R21140)
Hook
Display
PCB
(R21141)
[S49]
(R21142)
Hook
Control PCB
(R8098)

Si041252EE Swing Motors
Removal Procedure 13
8. Swing Motors
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Caution When reassembling, do not confuse the installing order of the 2 motors for horizontal
blades and the colors of the connectors.
If you set the connectors or motors opposite, the horizontal blades do not move
smoothly or noise may be heard.
Step Procedure Points
1. Remove the swing motor
for vertical blades.
Lift the indoor unit with a
wooden base for easy work.
Use the short screwdriver
from the back.
1 Remove the screw
behind the drain hose,
and disconnect the
drain hose.
2 Remove the screw at
the rear, and remove
the 2 screws on the
right and the left side of
the swing motors for
horizontal blades.
3 Detach the pivot from
the interlock shaft for
vertical blades with a
flat screwdriver to
disconnect it from the
swing motor unit.
Some models have fan
guards.
Remove the fan guards
beforehand.
Drain hose
(R10329)
(R21143)
Swing motor for
horizontal blades
Screw
Screw
Interlock
shaft
(R13092)
Vertical blade Pivot

Swing Motors Si041252EE
14 Removal Procedure
4 Remove the swing
motor unit.
5 Detach the interlock
shaft from the swing
motor with a flat
screwdriver.
6 Remove the vertical
blade interlock with a
flat screwdriver.
7 Remove the 2 screws
and remove the swing
motor for vertical
blades.
Step Procedure Points
(R21144)
Swing motor unit
Interlock shaft
(R8127)
Interlock shaft
(R10331)
Vertical blade interlock
(R21145)
Swing motor for vertical blades
Screw

Si041252EE Swing Motors
Removal Procedure 15
8 Disconnect the
connector.
Connector: green
2. Remove the swing motors
for horizontal blades.
Reassembling order
(1) Set the swing motor for the
upper blade first.
(connector: white)
(2) Then, set the swing motor
for the lower blade.
(connector: red)
(3) Fix the 2 swing motors with 1
screw.
1 Remove the screw and
remove the swing
motors for horizontal
blades.
2 Disconnect the
harnesses from the
motors.
Step Procedure Points
(R10334)
(R8131)
Screw
Connector for
lower blade (red)
Connector for
upper blade (white)
(R10335)

Indoor Heat Exchanger Si041252EE
16 Removal Procedure
9. Indoor Heat Exchanger
Warning 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.
When removing or reinstalling the indoor heat exchanger, be sure to wear gloves or
wrap the indoor heat exchanger with cloths. (You may be injured by the fins.)
Caution 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.
Step Procedure Points
1. Disconnect the refrigerant
piping.
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 work
with 2 wrenches.
When the pipings are
disconnected, protect both
the openings of the pipes
and the indoor unit from
entering moisture.
1 Remove the 2 screws
which fix the indoor
heat exchanger to the
installation plate.
2
3
Lift up the indoor unit
slightly and pull out the
drain hose.
Disconnect the gas
piping and the liquid
piping.
2. Remove the indoor heat
exchanger.
1
2
3
Detach the indoor unit
from the installation
plate.
Unfasten the hook and
remove the piping
fixture on the back of
the indoor unit.
Slightly widen the
auxiliary piping.
(R8103)
(R18878)
Drain hose
(R10622)
Piping fixture
(R17120)

Si041252EE Indoor Heat Exchanger
Removal Procedure 17
4 Remove the 2 screws
on the left side.
5 Unfasten the upper
hook on the right side
with a flat screwdriver.
6 After unfastening the
lower hook, lift up the
indoor heat exchanger
by its right side.
When reassembling the
indoor heat exchanger,
make sure that the right
hooks (upper and lower) are
fastened.
7Remove the indoor heat
exchanger.
Step Procedure Points
(R10546)
Upper hook
(R21146)
(R13139)
Indoor heat exchanger
Lower hook
(R13140)

Fan Motor Si041252EE
18 Removal Procedure
10.Fan Motor
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1 Remove the 2 screws
and remove the right
side plate.
2 Remove the 2 screws
and remove the fan
motor fixing plate.
When reassembling the fan
motor and the fan rotor,
provide as much as 5 mm
(0.2 inch) of play between
the side face of the rotor and
the bottom frame.
(1) Insert the fan motor with
approx. 5 mm (0.2 inch) left.
(2) Tighten the screw until it
stops. Then turn the screw in
one scroll.
(3) Move the fan rotor and
confirm the fan motor and
the fan rotor are installed
appropriately.
(4) If appropriate, tighten the
screw completely.
(5) If not appropriate, go back to
(1).
3 Loosen the lock screw
and remove the fan
motor.
4 Press the bearing
ASSY inward.
(R21147)
Right side
plate
(R21148)
Fan motor fixing plate
5 mm (0.2 inch)
Side face of rotor
(R18879)
Side face of
bottom frame
(R9582)
(R8120)
Lock screw
Fan motor
(R8121)