Daikin FTKJ09NV1SW User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
2.0/2.5/3.5/4.1/4.2/5.0 kW Class
9000/12000/18000 Btu/h Class
Si041401EB

Service Manual
Removal Procedure
Indoor Unit
zCooling Only zHeat Pump
FTKJ09NV1SW CTXG25PVMAW FTXJ20LV1BW
FTKJ09NV1SS CTXG25PVMAS FTXJ20LV1BS
FTKJ12NV1SW CTXG35PVMAW FTXJ25LV1BW
FTKJ12NV1SS CTXG35PVMAS FTXJ25LV1BS
FTKJ18NV1SW CTXG50PVMAW FTXJ35LV1BW
FTKJ18NV1SS CTXG50PVMAS FTXJ35LV1BS
FTXJ50LV1BW
FTKJ25NVMW CTXG09QVJUW FTXJ50LV1BS
FTKJ25NVMS CTXG09QVJUS
FTKJ35NVMW CTXG12QVJUW FTXJ25NVLTW
FTKJ35NVMS CTXG12QVJUS FTXJ41NVLTW
FTKJ42NVMW CTXG18QVJUW
FTKJ42NVMS CTXG18QVJUS FTXJ25NVMVW
FTKJ50NVMW FTXJ25NVMVS
FTKJ50NVMS FTXG20LV1BW FTXJ35NVMVW
FTXG20LV1BS FTXJ35NVMVS
FTKJ25NVM4W FTXG25LV1BW FTXJ50NVMVW
FTKJ25NVM4S FTXG25LV1BS FTXJ50NVMVS
FTKJ35NVM4W FTXG35LV1BW
FTKJ35NVM4S FTXG35LV1BS FTXJ25PVMAW
FTKJ50NVM4W FTXG50LV1BW FTXJ25PVMAS
FTKJ50NVM4S FTXG50LV1BS FTXJ35PVMAW
FTXJ35PVMAS
FTKJ25NVMMW FTXJ50PVMAW
FTKJ25NVMMS FTXJ50PVMAS
FTKJ35NVMMW
FTKJ35NVMMS
FTKJ50NVMMW
FTKJ50NVMMS
FTKJ25NVMVW
FTKJ25NVMV
FTKJ35NVMVW
FTKJ35NVMVS
FTKJ50NVMVW
FTKJ50NVMVS

Si041401EB
Removal Procedure 1
Table of Contents
1. Air Filters / Front Panels..........................................................................2
2. Horizontal Blades ....................................................................................5
3. Front Grille ..............................................................................................6
4. Front Panel Mechanism ASSYs..............................................................8
5. Limit Switch / Reduction Motor..............................................................12
6. Electrical Box ........................................................................................14
7. PCBs .....................................................................................................16
8. Swing Motors ........................................................................................19
9. Indoor Heat Exchanger .........................................................................24
10.Fan Rotor / Fan Motor...........................................................................26
11.Vertical Blade ASSYs............................................................................28
Note: The illustrations may be slightly different depending on the model.

Air Filters / Front Panels Si041401EB
2Removal Procedure
1. Air Filters / Front Panels
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.
1 Open the front panel
(upper).
2 Keep the front panel
(upper) open with the
support plate.
3 Remove the air filter. The air filter is not marked
for difference between the
right and left sides.
When reassembling, insert
the air filter along the guides.
Be sure to insert the 2
bottom hooks when
reassembling the air filter.
2. Remove the Titanium
apatite photocatalytic air-
purifying filter.
The Titanium apatite
photocatalytic air-purifying
filter is not marked for
difference between the right
and left sides.
1 Remove the Titanium
apatite photocatalytic
air-purifying filter.
Front panel (upper)
(R19958)
Support plate
(R19959)
Air filter
(R19960)
Titanium apatite
photocatalytic air-
purifying filter
(R18168)

Si041401EB Air Filters / Front Panels
Removal Procedure 3
3. Remove the front panels.
1 Open the front panel
(upper).
2
3
Release the front panel
(upper) locks on each
side.
Remove the front panel
(upper).
4 Slide the front panel
(lower) upward until it
stops.
You can slide the front panel
(lower) only when the front
panel mechanism ASSY is
pulled out forward.
Step Procedure Points
(R19961)
(R23800)
Left side
(R23801)
Right side
Front panel mechanism ASSY
Front panel (lower)
(R19964)
(R19965)

Air Filters / Front Panels Si041401EB
4Removal Procedure
5 Tap the front panel
(lower) from below at
the bottom of each side
and remove the front
panel (lower).
Step Procedure Points
(R19966)
(R19967)

Si041401EB Horizontal Blades
Removal Procedure 5
2. 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
2
Open the front panel
(upper).
Slide the front panel
(lower) upward until it
stops.
You can remove the
horizontal blades without
removing front panel (upper)
and front panel (lower).
3 Bend the horizontal
blade (large) slightly
and release the center
shaft.
4 Release the left shaft.
5
6
Slide the horizontal
blade (large) to the left
to release the right
shaft and remove it.
Remove the horizontal
blade (small) likewise.
Front panel (upper)
Front panel (lower)
(R19968)
Horizontal blade (large)
(R19969)
(R19970)
horizontal
blade
(small)
horizontal
blade
(large) (R23802)

Front Grille Si041401EB
6Removal 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
then the service cover.
2
3
Disconnect the relay
connector for reduction
motor and the
connector for wireless
LAN connection
adaptor.
Release the harnesses
from the clamp.
4 Remove the 2 screw
covers using a flat
screwdriver, and then
the 2 screws.
Service cover
(R19972)
Clamp
Connector for
wireless LAN
connection
adaptor
Relay connector
for reduction
motor
(R23803)
Screw cover (R19975)

Si041401EB Front Grille
Removal Procedure 7
5 Remove the 2 screws.
6 Unfasten the 3 hooks
and remove the front
grille.
Step Procedure Points
(R19976)
Hook
Front grille (R19977)

Front Panel Mechanism ASSYs Si041401EB
8Removal Procedure
4. Front Panel Mechanism 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 2 screws
on the decoration panel
(right).
2 Pull out (forward) the
front panel mechanism
ASSY on both the right
and left sides.
3
4
Open the decoration
panel (right).
Unfasten the 3 hooks
and remove the
decoration panel (right).
5 Remove the 2 screws
on the front panel
mechanism ASSY
(right).
Decoration
panel (right)
(R19978)
(R19979)
Front panel mechanism ASSY
Hook
(R19980)
(R19981)

Si041401EB Front Panel Mechanism ASSYs
Removal Procedure 9
6 Remove the guide
panel (right).
7 Remove the front panel
mechanism ASSY
(right).
8 Remove the 2 screws
on the decoration panel
(left).
9
10
Open the decoration
panel (left).
Unfasten the 3 hooks
and remove the
decoration panel (left).
Step Procedure Points
(R19982)
Guide panel (right)
Front panel
mechanism
ASSY (right)
(R19983)
Decoration panel
(left)
(R19984)
Hook
(R19985)

Front Panel Mechanism ASSYs Si041401EB
10 Removal Procedure
11 Remove the 2 screws
on the front panel
mechanism ASSY (left).
12 Remove the guide
panel (left).
13 Remove the front panel
mechanism ASSY (left).
14 Turn around the front
grille and remove the
shaft.
Step Procedure Points
(R19986)
Guide panel (left)
(R19987)
(R19988)
Front panel
mechanism
ASSY (left)
Shaft
(R19989)

Si041401EB Front Panel Mechanism ASSYs
Removal Procedure 11
15 Rotate the indoor unit
switch ASSY to
unfasten the 3 hooks.
16 Remove the indoor unit
switch ASSY.
Step Procedure Points
Indoor unit switch ASSY (R19990)
Hook
Hook (R19991)

Limit Switch / Reduction Motor Si041401EB
12 Removal Procedure
5. Limit Switch / Reduction Motor
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 on
the front panel
mechanism ASSY
(right).
Unfasten the 2 hooks
and remove the
wireless adaptor holder.
3
4
Cut the clamp of the
front panel mechanism
ASSY (right).
Release the harnesses
from the 2 hooks.
5 Cut the 2 clamps and
release the harnesses
from the groove.
Hook
Wireless adaptor
holder
Hook
(R23804)
Clamp
Hook
Inner side
(R19993)
(R23805)
Clamp
Groove
Outer side Clamp

Si041401EB Limit Switch / Reduction Motor
Removal Procedure 13
6 Pull out the 2 terminals
of the limit switch.
7 Remove the 2 screws,
and then the limit
switch.
8
9
Remove the screw of
the reduction motor.
Slightly tilt the reduction
motor downward and
rotate to the left to
remove it.
Step Procedure Points
Terminal
Limit switch
(R19994)
(R19995)
Reduction
motor
(R19996)

Electrical Box Si041401EB
14 Removal 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 Remove the screw, and
then the drip proof
plate.
The position of the indoor
heat exchanger thermistor
varies by model.
Be careful not to lose the clip
of the thermistor.
2
3
Remove the screw and
release the earth/
ground wire.
Pull out the indoor heat
exchanger thermistor.
4
5
Remove the 4 screws
and release the
connecting wires.
Remove the screw, and
then the wire fixture.
For U.S. models
U.S. models do not have the
wire fixture. There is a
conduit hole on the back of
the unit.
When reassembling, make
sure the connecting wires
pass through the conduit
hole and the conduit pipe is
securely fastened by the lock
nut.
Drip proof plate (R19998)
Clip
(R11268)
Earth/ground wire
Indoor heat
exchanger thermistor (R19999)
Connecting
wire
Wire fixture
For non-U.S. models
(R20000)
Electrical wiring box
Screw
Conduit pipe
Conduit
Conduit
mounting plate
Lock nut
For U.S. models
(R23806)

Si041401EB Electrical Box
Removal Procedure 15
6 Remove the shield
plate.
7
8
Disconnect the
connectors [S41] and
[S200].
Release the harnesses
from the 3 hooks.
[S41]: swing motors
[S200]: fan motor
9 Remove the screw.
10 Unfasten the 2 hooks
and remove the
electrical box.
When reassembling, fit the
rear side of the electrical box
to the 2 hooks on the bottom
frame.
Step Procedure Points
Shield plate
(R20001)
[S41]
Hook [S200]
(R20002)
(R20003)
(R20004)
Electrical
box
Hook
Hook

PCBs Si041401EB
16 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 display/
signal receiver PCB.
1 Unfasten the 4 hooks
and remove the lamp
cover ASSY from the
electrical box.
2 Unfasten the 3 hooks
and remove the display/
signal receiver PCB.
3 Disconnect the
connectors [S51] and
[S52].
[S51]: control PCB
[S52]: room temperature
thermistor
Hook
Hook
Lamp cover
ASSY
(R20005)
Hook
Hook
Display/signal
receiver PCB
(R23807)
[S51]
[S52]
(R20007)

Si041401EB PCBs
Removal Procedure 17
2. Remove the
INTELLIGENT EYE
sensor PCB.
1 Cut the clamp and
release the harness.
2 Unfasten the 3 hooks
with a flat screwdriver
and remove the
INTELLIGENT EYE
sensor PCB.
3 Disconnect the
connector [S36].
[S36]: control PCB
Step Procedure Points
Clamp
(R20008)
Hook
Hook
(R20009)
INTELLIGENT EYE
sensor PCB
(R20010)
(R20011)
[S36]

PCBs Si041401EB
18 Removal Procedure
3. Remove the control PCB.
1 Unfasten the hook at
the back and remove
the shield plate.
2
3
Remove the screw of
the terminal board.
Pull out the terminals
and remove the
terminal board.
4
5
Cut the clamp.
Release the earth/
ground wire and indoor
heat exchanger
thermistor harnesses
from the 2 hooks.
r
6 Unfasten the 3 hooks
and remove the control
PCB.
Step Procedure Points
Shield plate
Hook
(R20200)
Terminal board
(R20013)
Clamp
Hook
(R20014)
Hook
Control PCB
(R23808)