Daikin FTKS50BVMA8 User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
5.0 kW Class
7000/9000/12000 Btu/h Class
Si041253_A

Service Manual
Removal Procedure
Indoor Unit
zCooling Only zHeat Pump
FTKS50BVMA8 CTXS07JVJU
CTXS09HVJU
CTXS12HVJU

Si041253_A
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 ASSY ...............................................................................6
6. Electrical Box ..........................................................................................7
7. PCBs .......................................................................................................9
8. Swing Motors ........................................................................................11
9. Indoor Heat Exchanger .........................................................................12
10.Fan Rotor / Fan Motor...........................................................................14
Note: The illustrations may be slightly different depending on the model.

Air Filters Si041253_A
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
(at 2 lower positions) when
mounting the air filter.
1Open the front panel.
2Pull out the air filter.
2. Remove the Air purifying
filters with photocatalytic
deodorizing function.
1Remove the Air
purifying filter with
photocatalytic
deodorizing function
from the 5 hooks.
The right and left filters are
interchangeable.
Air filter (R17740)
Front panel
Hook
Hook
Air purifying filter
with photocatalytic
deodorizing function (R17918)

Si041253_A 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
1Open the front panel
over the position where
it stops.
When reassembling the front
panel, fit the right and left
rotary shafts one by one into
the grooves and fully push
them in position.
2Slide the left rotary
shaft to the right and
release it.
3Remove the right rotary
shaft in the same way.
(R17898)

Front Grille Si041253_A
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
1Remove the 2 screws
of the front grille.
2Unfasten the 3 hooks
on the top of the front
grille.
The convex marks (...) on
the front panel indicate the
position of the hooks.
3Pull 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 the 3 hooks are
fastened.
(R2758)
Front grille
(R17741)
(1)
(2)
(R15467)

Si041253_A 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
1Open the horizontal
blades.
2Bend the horizontal
blade (lower) slightly
and release the left
shaft and the center
shaft.
3Slide the horizontal
blades (lower) the left
and release the right
shaft.
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.
4Remove the horizontal
blade (upper) in the
same way.
Horizontal blades
(R17899)
(R17900)
Left shaft
Center shaft
(R17901)
(R2766)
Right shaft

Vertical Blade ASSY Si041253_A
6Removal Procedure
5. Vertical Blade ASSY
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1Release the right and
left shafts.
Some models have fan
guards. Remove the fan
guards beforehand.
2Unfasten the 3 hooks
for each set of vertical
blade ASSY.
3Remove the vertical
blade ASSY.
(R17909)
Vertical blade ASSY
(R17917)
Hook
(R17910)

Si041253_A Electrical Box
Removal Procedure 7
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
1Remove the screw and
remove the drip proof
plate.
2Remove the screw of
the earth / ground wire.
Be careful not to lose the clip
for the thermistor.
Some models do not have a
wire fixture.
3Pull out the indoor heat
exchanger thermistor.
4
5
Remove the screw of
the wire fixture.
Remove the 4 screws
of the connecting wires.
6Disconnect the
connector [S1].
[S1]: fan motor
Drip proof plate
(R5346)
(R18514)
Earth / ground wire
Connecting
wire
Wire fixture
Indoor heat exchanger
thermistor
Clip
(R11234)
(R2774)
[S1]

Electrical Box Si041253_A
8Removal Procedure
7Disconnect the
connectors [S6] [S8].
[S6]: swing motor for horizontal
blade
[S8]: swing motor for vertical
blade
8Remove the screw of
the electrical box.
9Lift up the lower part of
the electrical box.
10 Release the upper hook
and remove the
electrical box.
Step Procedure Points
(R2775)
[S6]
[S8]
(R2776)
Electrical box
(R17742)
When reassembling, catch
the back hook of the
electrical box.

Si041253_A PCBs
Removal Procedure 9
7. PCBs
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1Remove the screw on
the electrical box.
Screw: M4 × 16
2Push the shield plate
and unfasten the hook.
3Press the signal
receiver unit down and
unfasten the hooks on
the upper side, and
then unfasten the hooks
on the lower side.
(R17747)
Electrical box
Shield
plate
Hook
(R13224)
(R2781)
Signal receiver
unit

PCBs Si041253_A
10 Removal Procedure
4Cut the clamp.
5The signal receiver unit
has 4 PCBs.
Unfasten the hooks and
remove each PCB.
Disconnect every
connector from each
PCB.
6Cut the clamp.
7Unfasten the 2 hooks
on the lower side, and
then the 2 hooks on the
upper side.
Remove the control
PCB.
Step Procedure Points
(R18795)
Clamp
Display PCB Signal receiver PCB
Buzzer PCB
INTELLIGENT EYE
sensor PCB
(R2783)
(R18796)
Clamp
(R17912)
Control PCB
Lower hook
Upper hook

Si041253_A Swing Motors
Removal Procedure 11
8. Swing Motors
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 swing motor
for horizontal blades.
1Remove the screw of
the swing motor.
2Remove the swing
motor.
2. Remove the swing motor
for vertical blades. Remove the swing shaft.
1Remove the swing shaft
on the right side.
2Remove the 2 screws
and detach the swing
motor unit.
3Remove the 2 screws
and remove the swing
motor.
The assembly has 6 hooks.
(R17748)
Swing motor
(R2789)
(1) Unfasten the hook.
(2) Pull out the swing shaft.
(R12896)
(R17919)
Swing motor unit
Hook
Hook Swing motor
(R2792)

Indoor Heat Exchanger Si041253_A
12 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
1Unscrew the flare nut
for gas piping and liquid
piping and disconnect
them.
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 both
the openings of pipe and unit
from entering of moisture.
2Detach the indoor unit
from the installation
plate.
3Unfasten the hook of
the piping fixture on the
back of the indoor unit.
(R5372)
(R5374)
Piping
fixture
(R5375)

Si041253_A Indoor Heat Exchanger
Removal Procedure 13
4Slightly widen the
auxiliary piping.
5Unfasten the hooks on
the left side.
6Push the hooks on the
right side and unfasten
them.
7Pull the indoor heat
exchanger to the front
side and release the
hooks completely, and
then lift it.
Step Procedure Points
Auxiliary piping
(R5376)
Hook
(R13228)
Hook
(R13229)
Indoor heat exchanger
(R5379)

Fan Rotor / Fan Motor Si041253_A
14 Removal Procedure
10.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
1Remove the 2 screws. You can remove the fan
rotor without detaching the
right side plate.
2Lift the right side plate
and remove it.
3Remove the screw and
remove the fan motor
fixing plate.
When reassembling the fan
motor and the fan rotor,
provide as much as 5 mm of
play between the side face
of the rotor and the bottom
frame.
(1) Insert the fan motor with
approx. 5 mm left.
(2) Tighten the screw until it
stops. Then give the screw
one more turn.
(3) Rotate the fan rotor and
confirm the fan motor and
the fan rotor are installed
appropriately.
(4) Tighten the screw
completely if appropriate.
(5) If not appropriate, go back to
(1).
4Loosen the screw of the
fan rotor.
5Remove the fan motor.
Right
side
plate
(R16544)
Fan motor fixing plate
(R17920) 5 mm
Side face of rotor
(R2808)
Side face of
bottom frame
(R9582)
(R17743)
Fan rotor
Fan motor
(R13230)

Si041253_A Fan Rotor / Fan Motor
Removal Procedure 15
6Remove the fan rotor.
7Remove the 2 screws
and remove the left side
plate.
8The bearing is made of
rubber. Push it inward
and remove it.
Step Procedure Points
Fan rotor
(R17921)
Left side plate
(R16546)
Bearing
(R5387)

Revision History
Month / Year Version Revised contents
09 / 2012 Si041253 First edition
02 / 2013 Si041253_A Model addition: CTXS07JVJU, CTXS09/12HVJU

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/global_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
z
Specifications, designs and other content appearing in this brochure are current as of February 2013 but subject to change without notice.
Si041253_A
02/2013 AK.B