Daikin FTK09NMVJU User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
9000/12000 Btu/h Class
Si041552E

Service Manual
Removal Procedure
Indoor Unit
zCooling Only zHeat Pump
FTK09NMVJU FTX09NMVJU
FTK12NMVJU FTX12NMVJU
FTKN09NMVJU FTXN09NMVJU
FTKN12NMVJU FTXN12NMVJU

Si041552E
Removal Procedure 1
Table of Contents
1. Air Filters / Front Panel ...........................................................................2
2. Front Grille ..............................................................................................3
3. Horizontal Blade......................................................................................4
4. Electrical Box ..........................................................................................5
5. PCBs / Swing Motor ................................................................................9
6. Indoor Heat Exchanger .........................................................................12
7. Fan Rotor / Fan Motor...........................................................................14
8. Fan Guards / Vertical Blade ASSYs......................................................16
Note: The illustrations may be slightly different depending on the model.

Air Filters / Front Panel Si041552E
2Removal Procedure
1. Air Filters / 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. Remove the air filters. The air filter is not marked
for difference between the
right and left sides.
The air filter can be set
easily by inserting it along
the guides.
Insert the air filter with the
“FRONT” mark faced up.
Be sure to insert the hooks
(at 2 lower positions) when
installing the air filter.
1
2
Open the front panel.
Unfasten the 2 hooks
and pull out the air filter
downward to remove it.
2. Remove the front panel. The rotary shaft on each
side can be released easily
by sliding each shaft inward.
1 Release the left and
right rotary shafts.
2 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 in position.
Front panel
Hook Air filter
(R21852)
Left
(R21001)
Right
(R21853)
Front panel
(R21854)

Si041552E Front Grille
Removal Procedure 3
2. 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 2 screws
of the front grille.
2
3
Unfasten the 3 hooks at
the top.
Pull out the upper part
of the front grille and lift
up the lower part, and
then remove the front
grille.
The convex marks (…) on
the front panel indicate the
position of the hooks.
When reassembling, make
sure that all the 3 hooks are
fastened.
Front grille
(R21855)
Hook
(R21005)
(R12715)

Horizontal Blade Si041552E
4Removal Procedure
3. Horizontal Blade
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
slightly.
Installation procedure
(1) Since the key pattern hook is
provided, rotate the
horizontal blade and fit it to
the right shaft first.
(2) Fit the horizontal blade to the
center and left shafts.
2
3
Release the left shaft.
Release the right key
pattern hook.
4 Remove the horizontal
blade.
Horizontal blade
(R21827)
Shaft
(R21007)
Shaft
Left
(R21008)
Key pattern hook
Right
(R21009)
Horizontal blade (R21828)

Si041552E Electrical Box
Removal Procedure 5
4. 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. Disconnect the
connecting wire.
Service cover can be
removed without removing
the front grille.
There is no hook at the top
of the service cover. Be
careful not to drop it when
the screw is loosened.
1 Remove the screw and
remove the service
cover.
2
3
4
Remove the screw and
remove the wire fixture.
Remove the 4 screws
of the terminal board.
Loosen the conduit and
disconnect the
connecting wire.
2. Remove the electrical
box.
1 Remove the 2 screws
and detach the earth /
ground wires.
Service cover
(R21856)
Terminal board
Connecting
wire
Wire fixture
Conduit
(R21829)
Earth / ground
wire (green)
Earth / ground wire (yellow / green)
(R21830)

Electrical Box Si041552E
6Removal Procedure
2 Pull out the indoor heat
exchanger thermistor.
Be careful not to lose the clip
of the thermistor.
The position of the indoor
heat exchanger thermistor
varies depending on the
model.
3 Release the earth /
ground wires and the
thermistor harness from
the front and the back
slits at the top of the
electrical box.
When reassembling, be sure
to insert the earth / ground
wires in the front slit and
yellow / green wire is above
the green wire and insert the
thermistor harness in the
back slit.
4 Unfasten the 4 hooks
and remove the
electrical box cover.
When reassembling, make
sure that the 4 hooks are
securely fastened.
Step Procedure Points
Indoor heat exchanger thermistor
(R21831)
Clip
(R11268)
Electrical box
Earth / ground wire Thermistor harness Slit
(R21832)
Front slit
Yellow / green
Green
Back slit
Thermistor
harness
(R21857)
Electrical box cover
Hook
(R21833)

Si041552E Electrical Box
Removal Procedure 7
5
6
Disconnect the
connector [S200].
Release the harnesses
from the 5 hooks.
[S200]: fan motor
7
8
Disconnect the
connector [S6].
Release the harnesses
from the 6 hooks.
[S6]: swing motor
9 Remove the screw of
the electrical box.
Step Procedure Points
[S200]
Hook Hook
(R21834)
Hook
[S6]
Hook
(R21835)
Electrical box
(R21836)

Electrical Box Si041552E
8Removal Procedure
10 Slightly lift the electrical
box upward and
remove it.
When reassembling, make
sure to catch the hook at the
front of the electronic box.
When reassembling, make
sure that the 2 hooks are
securely fastened to the
bottom frame.
Step Procedure Points
Hook
(R21837)
Hook
Bottom frame
(R21838)

Si041552E PCBs / Swing Motor
Removal Procedure 9
5. PCBs / Swing 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 control PCB. When reassembling, fit the
projection at the back of the
terminal board into the hole
on the mounting plate.
1 Remove the screw of
the terminal board.
2 Release the earth /
ground wires and the
thermistor harness from
the slit.
3 Release the terminal
board harness from the
groove and the 3
hooks.
Terminal board
(R21839)
Mounting plate
Projection
(R21840)
Slit
Thermistor harness
Earth /
ground
wire
(R21841)
Hook
Groove
Terminal board harness
(R21842)

PCBs / Swing Motor Si041552E
10 Removal Procedure
4 Remove the connector
[S26] and release the
harnesses from the 3
hooks.
[S26]: display PCB
When reassembling, pass
the harness of the connector
[S26] under this hook and
the 3 wires.
5 Unfasten the 4 hooks
and remove the control
PCB.
When reassembling, be sure
to fit the control PCB to the 4
projections.
Step Procedure Points
3 wires Hook
(R21844)
Projection
(R21858)

Si041552E PCBs / Swing Motor
Removal Procedure 11
2. Remove the display PCB.
1 Release the harness of
the display PCB ASSY
from the 2 hooks.
2 Unfasten the 3 hooks of
the display PCB ASSY.
3
4
Turn over the display
PCB ASSY.
Unfasten the 3 hooks
and remove the display
PCB.
3. Remove the swing motor.
1 Remove the screw and
remove the swing
motor.
Step Procedure Points
Hook
Display PCB ASSY
(R21846)
Hook
Display PCB ASSY (R21029)
Front
Hook
Display PCB
ASSY
(R21847)
Left side
Hook
Display PCB Hook
(R21031)
Swing motor
(R21859)

Indoor Heat Exchanger Si041552E
12 Removal Procedure
6. 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.
1 Remove the 2 screws.
2 Pull out the drain hose. Hold the indoor unit up with a
piece of wood.
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
disconnected, protect the
open ends of pipe and unit
from entering of moisture.
3
4
Disconnect the flare nut
for gas piping.
Disconnect the flare nut
for liquid piping.
(R21848)
Connecting wires
Drain hose
Extension drain hose
(R21206)
(R21207)

Si041552E Indoor Heat Exchanger
Removal Procedure 13
5 Detach the indoor unit
from the installation
plate.
2. Remove the indoor heat
exchanger.
1 Unfasten the 2 hooks
and remove the piping
fixture on the back of
the indoor unit.
2 Slightly widen the
auxiliary piping.
3 Remove the 2 screws
on the left side and
unfasten the hook on
the rear side.
4 Unfasten the hook on
the right side and lift up
the indoor heat
exchanger.
When reassembling the
indoor heat exchanger,
make sure that the hook is
fastened.
Step Procedure Points
(R21849)
Hook
Piping fixture
(R21035)
Auxiliary piping (R21036)
Hook
(R21037)
Indoor heat
exchanger
(R21850)

Fan Rotor / Fan Motor Si041552E
14 Removal Procedure
7. Fan Rotor / 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 screw of
the right side plate.
2 Unfasten the hook and
remove the right side
plate.
3 Remove the fan rotor
and the fan motor.
The fan motor has 3
projections on the right side.
The fan rotor has a bushing
on the left side.
Right side plate
(R21039)
Hook
(R21040)
Fan motorFan rotor
Bushing
(R21860)

Si041552E Fan Rotor / Fan Motor
Removal Procedure 15
4 Unfasten the 2 hooks of
the motor cover.
Step Procedure Points
Hook
Motor cover
(R21042)
(R21043)

Fan Guards / Vertical Blade ASSYs Si041552E
16 Removal Procedure
8. Fan Guards / 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. The fan guards are not
marked for difference
between right and left.
When reassembling, fit the
fan guard to the 2
projections at the top and
fasten the 2 hooks at the
bottom.
1
2
3
Peel off the sealing
material.
Unfasten the 2 hooks at
the bottom and remove
the fan guard.
Remove the other fan
guard in the same way.
2. Remove the vertical blade
ASSYs.
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.
1 Unfasten the upper 2
hooks.
2
3
4
Unfasten the 3 hooks at
the shaft mounting part
by pressing them with a
flat screwdriver.
Remove the vertical
blade ASSY.
Remove the other
vertical blade ASSY in
the same way.
Hook
Fan guard
Sealing material
Hook
(R21851)
Projection
(R21045)
Vertical blade ASSY
Hook
(R21046)
Hook
(R21047)

Revision History
Month / Year Version Revised contents
05 / 2015 Si041552E First edition

Head Office:
Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,
Kita-ku, Osaka, 530-8323 Japan
Tokyo Office:
JR Shinagawa East Bldg., 2-18-1, Konan,
Minato-ku, Tokyo, 108-0075 Japan
http://www.daikin.com/products/ac/
All rights reserved
c
Warning
zDaikin products are manufactured for export to numerous countries throughout the world. Prior to
purchase, please confirm with your local authorised importer, distributor and/or retailer whether this
product conforms to the applicable standards, and is suitable for use, in the region where the product
will be used. This statement does not purport to exclude, restrict or modify the application of any local
legislation.
zAsk a qualified installer or contractor to install this product. Do not try to install the product yourself.
Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion.
zUse only those parts and accessories supplied or specified by Daikin. Ask a qualified installer or
contractor to install those parts and accessories. Use of unauthorised parts and accessories or
improper installation of parts and accessories can result in water or refrigerant leakage, electrical
shock, fire or explosion.
zRead the user's manual carefully before using this product. The user's manual provides important
safety instructions and warnings. Be sure to follow these instructions and warnings.
If you have any enquiries, please contact your local importer, distributor and/or retailer.
Cautions on product corrosion
1. Air conditioners should not be installed in areas where corrosive gases, such as acid gas or alkaline gas, are produced.
2. If the outdoor unit is to be installed close to the sea shore, direct exposure to the sea breeze should be avoided. If you need to install
the outdoor unit close to the sea shore, contact your local distributor.
Dealer
zSpecifications, designs and other content appearing in this brochure are current as of May 2015 but subject to change without notice. Si041552E
05/2015 AK.B