Daikin CTKM28PV2S User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter / Non-Inverter
Wall Mounted Type
4.0/4.1/5.0/6.0/6.3/7.1 kW Class
15000/18000/24000/28000 Btu/h Class
Si041351ED

Service Manual
Removal Procedure
Indoor Unit
zCooling Only zHeat Pump
CTKM28PV2S ATM24MV2S CTXM71PVLT
CTKM71PV14
FTM60JV14 FTXM41NVLT
FTKM18NV2S FTXM50NVLT
FTKM24NV2S FTM60KV1V FTXM63NVLT
FTKM28NV2S
FTM24NV2S FTXM50PVMA
FTKM71PVM FTXM60PVMA
FTN60JV1G FTXM71PVMA
FTKM50PVMA FTN60JV1G9
FTKM60PVMA FTXM18PVMK
FTKM71PVMA FTXM24PVMK
FTKM18PVMK FTXS50JAVLT
FTKM24PVMK FTXS60JAVLT
FTKS50HVM FTXS15LVJU
FTKS60HVM FTXS18LVJU
FTXS24LVJU
FTKS50JAVLT
FTKS60JAVLT FTXS40MVLT
FTXS50MVLT
FTKS50JVMG
FTKS60JVMG FTXV50NVLT
FTKS50JVMG9 FTXV63NVLT
FTKS60JVMG9 FTXV71NVLT
FTKS18JV2S
FTKS24JV2S
FTKS40MVLT
FTKS50MVLT
FTKV71NVM
FTKV71NVM4
FTKV71NVMM
FTKV71NVMV

Si041351ED
Removal Procedure 1
Table of Contents
1. Air Filters / Front Panel ...........................................................................2
2. Front Grille ..............................................................................................4
3. Electrical Box ..........................................................................................6
4. PCBs .......................................................................................................9
5. Horizontal Blades ..................................................................................13
6. Swing Motors ........................................................................................15
7. Indoor Heat Exchanger .........................................................................19
8. Fan Motor / Fan Rotor...........................................................................21
9. Vertical Blade ASSYs............................................................................23
Note: The illustrations may be slightly different depending on the model.

Air Filters / Front Panel Si041351ED
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.
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
reassembling the air filter.
1 Open the front panel to
the position where it
stops.
2 Pull out the air filter
downward and remove
it.
2. Remove the Titanium
apatite photocatalytic air-
purifying filters.
The right and left filters are
interchangeable.
1 Remove the Titanium
apatite photocatalytic
air-purifying filter ASSY
from the back of the air
filter.
2 Remove the Titanium
apatite photocatalytic
air-purifying filter from
the frame.
Front Panel
(R16449)
(R16450)
Air filter Hook
(R16262)
Air filter
Titanium apatite photocatalytic
air-purifying filter ASSY
(R9478)
Frame
Titanium apatite photocatalytic
air-purifying filter

Si041351ED Air Filters / Front Panel
Removal Procedure 3
3. Remove the front panel.
1 Open the front panel
over the position where
it stops.
2 Slide the left rotary
shaft to the right and
release it.
When reassembling the front
panel, fit the right and left
rotary shafts one by one into
the grooves and fully push
them into position.
3 Release the right rotary
shaft in the same way.
4 Remove the front panel.
Step Procedure Points
(R16456)
Front Panel
(R9480)
(R9481)
(R16451)

Front Grille Si041351ED
4Removal Procedure
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 service
cover.
1 Remove the screw and
remove the service
cover.
You can remove the front
grille without removing the
service cover.
2. Remove the front grille. Refer to the removal
procedure in a reverse way
when reassembling.
1 Remove the 3 screws
of the front grille.
2 Remove the 3 screw
covers with a flat
screwdriver.
(R16452)
Service cover
(R16453)
(R16454)
Front grille
(R20476)
Screw cover

Si041351ED Front Grille
Removal Procedure 5
3 Remove the lower 3
screws.
4 Unfasten the 3 hooks
on the top of the front
grille.
The convex marks (...) on
the front panel indicate the
position of the hooks.
5 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.
Step Procedure Points
(R16267)
(R16511)
Hook
(R12715)
(R16269)

Electrical Box Si041351ED
6Removal Procedure
3. 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.
Remove the drip proof
plate from the indoor
heat exchanger.
The shape of the drip proof
plate varies by the model.
When reassembling, fit the
hook to the indoor heat
exchanger.
3 Cut the clamp.
4 Pull out and release the
earth / ground wire.
(R16273)
(R18724)
Drip proof plate
(R16274)
(R19306)
Earth / ground wire

Si041351ED Electrical Box
Removal Procedure 7
5 Pull out the indoor heat
exchanger thermistor.
The position of the indoor
heat exchanger thermistor
varies by the model.
Be careful not to lose the clip
of the thermistor.
6
7
Remove the 4 screws
on the terminal board
and disconnect the
connecting wire.
Remove the screw and
remove the wire fixture.
8 Disconnect the
connector [S1] and
release the harness
from the hook.
[S1]: fan motor
Step Procedure Points
(R18885)
Indoor heat exchanger
thermistor
Clip
(R11268)
123
(R18886)
Terminal board
Wire
fixture
Connecting wire
123
(R18887)
[S1] Hook

Electrical Box Si041351ED
8Removal Procedure
9 Disconnect the
connector [S41].
[S41]: swing motors
10 Release the harness
from the hooks.
11 Remove the screw of
the electrical box.
12 Lift up the electrical box
from the bottom frame
and remove it.
Fit the back hook of the
electrical box to the bottom
frame when reassembling.
Step Procedure Points
(R16279)
[S41]
(R18888)
Hook
123
(R16281)
Electrical box
(R16282)
(R9647)
Bottom frame
Hook

Si041351ED PCBs
Removal Procedure 9
4. 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 signal
receiver PCB.
1 Unfasten the 2 hooks of
the shield plate.
2 Open the shield plate
and remove it.
The shield plate has 2 hooks
at the lower part.
3 Remove the screw and
remove the terminal
board.
(1 hook at the back)
(R22131)
Shield
plate
Hook
(R16283)
(R16498)
Hook
(R18725)
Terminal board

PCBs Si041351ED
10 Removal Procedure
4 Cut the clamp.
5 Release the harness
from the hook.
When reassembling, make
sure to hook the harness.
6 Push and unfasten the
hook of the signal
receiver unit.
7
8
Open the signal
receiver unit.
Unfasten the hook and
remove the signal
receiver unit.
Step Procedure Points
(R18726)
Clamp
(R9514)
Hook
(R16512)
Hook
Signal
receiver
unit
(R16500)
Hook

Si041351ED PCBs
Removal Procedure 11
9
10
Unfasten the 2 hooks
and remove the signal
receiver PCB.
Disconnect the
connector [S48].
[S48]: to control PCB
2. Remove the
INTELLIGENT EYE
sensor PCB.
Some models have no
INTELLIGENT EYE sensor
PCB.
1 Unfasten the 4 hooks
and remove the
INTELLIGENT EYE
sensor ASSY.
2 Remove the sensor
from the shield plate.
When reassembling, set the
sensor at the position where
it clicks. Otherwise, the
sensor is not completely set.
3
4
5
Remove the shield
plate by unfastening the
2 hooks.
Disconnect the
connector [S36].
Remove the
INTELLIGENT EYE
sensor PCB.
[S36]: to control PCB
Step Procedure Points
(R18737)
Signal receiver PCB
[S48]
(R9523)
Hook
Hook
INTELLIGENT EYE
sensor ASSY
(R9525)
Sensor Shield plate
(R18893)
Shield plate (rear)
Hook
INTELLIGENT EYE
sensor PCB
[S36]

PCBs Si041351ED
12 Removal Procedure
3. Remove the display PCB.
1 Unfasten the 4 hooks
and remove the display
PCB.
2
3
Release the harness
from the hook.
Disconnect the
connector [S49].
[S49]: to control PCB
4. Remove the control PCB.
1 Unfasten the 3 hooks
and remove the control
PCB.
2 Pull out the earth /
ground wire (yellow /
green) from the terminal
board.
When reassembling, make
sure to connect the
connectors as shown in the
illustrations below.
3 Pull out the 4 terminals
from the terminal board.
Step Procedure Points
(R19304)
Display PCB
Hook
Hook
(R9530)
Hook
[S49]
(R18739)
Hook
Hook
Control PCB
Earth / ground wire
(yellow / green)
(R22119)
Black Red
Earth / ground (green)
Earth / ground
(yellow / green)
White
FRONT
Type 1
(R22120)
Red Black
Earth / ground (green)
Earth / ground
(yellow / green)
White
FRONT
Type 2
(R22121)
(R9519)
Terminal

Si041351ED Horizontal Blades
Removal Procedure 13
5. 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. Remove the horizontal
blades.
1 Release the left shaft of
the horizontal blade
(large).
2 Release the inner right
shaft.
3 Release the inner left
shaft.
4 Release the right shaft.
(R16515)
left
(R16516)
inner right
inner left
(R16517)
right
Horizontal
blade (large) (R19305)

Horizontal Blades Si041351ED
14 Removal Procedure
5
6
Remove the horizontal
blade (large).
Remove the other
horizontal blade (small)
in the same way.
2. Remove the air outlet
ASSYs.
The 3 air outlet ASSYs are
bound with sealing
materials.
1 Remove the air outlet
ASSYs by pushing the
2 hooks at the back of
each.
3. Remove the fan guards. Remove the other 2 fan
guards likewise.
Some models have no fan
guard.
1 Unfasten the 4 lower
hooks and the 2 upper
hooks and remove the
fan guard.
Step Procedure Points
(R16292)
Air outlet ASSY
(R16519)
(R16520)
(R18979)
Fan guard

Si041351ED Swing Motors
Removal Procedure 15
6. 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 motors
for horizontal blades.
1 Release the interlock
rod.
2 Remove the screw at
the rear of the indoor
unit.
3 Remove the 2 screws
(front and rear).
(R9546)
Interlock rod
(R16296)
(R16297)

Swing Motors Si041351ED
16 Removal Procedure
4 Pull out the drain hose,
then remove the swing
motor unit.
5 Remove the screw at
the center.
6 Remove the 2 pivots.
7 Remove the swing
motors.
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 both swing motors with a
screw.
Step Procedure Points
(R16298)
Drain hose
Swing
motor unit
(R9548)
(R9549)
(R16079)
Swing motor (lower blade)
Swing motor (upper blade)

Si041351ED Swing Motors
Removal Procedure 17
8 Disconnect the
connector to remove
the swing motor.
2. Remove the swing motor
for vertical blades.
1 Remove the link cover.
2 Remove the interlock
rod (2) with pliers.
Step Procedure Points
(R9551)
(R9552)
Link cover
(R9553)
Interlock rod (2)
(R9554)

Swing Motors Si041351ED
18 Removal Procedure
3 Remove the interlock
rod (1).
4 Remove the 2 screws.
5 Remove the swing
motor for the vertical
blade.
6 Disconnect the
connector.
Step Procedure Points
(R9555)
Interlock rod (1)
(R9556)
(R9557)
Swing motor for
vertical blade
(R9558)