Daikin FTKM33NV2S User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter / Non-Inverter
Wall Mounted Type
6.0/7.0/7.1/8.0/8.5/9.0/9.5 kW Class
28000/33000 Btu/h Class
Si041352EB

Service Manual
Removal Procedure
Indoor Unit
zCooling Only zHeat Pump
FTKM33NV2S FTXM71NVLT
FTXM80NVLT
FTKM28PVMK FTXM90NVLT
FTKS71HVM FTXM28PVMK
FTKS85HVM
FTXM85PVMA
FTKS28JV2S FTXM95PVMA
FTKS33JV2S
FTXS60MVLT
FTKS71JVMG FTXS70MVLT
FTKS85JVMG FTXS80MVLT
FTKS71JVMG9 FTXS90MVLT
FTKS85JVMG9
FTKS60MVLT
FTKS70MVLT
FTKS80MVLT
FTKS90MVLT
FTM71JV14
FTM28NV28

Si041352EB
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 ........................................................................................17
7. Fan Motor (Without Removing Indoor Heat Exchanger) .......................21
8. Indoor Heat Exchanger .........................................................................23
9. Fan Motor / Fan Rotor...........................................................................25
10.Vertical Blade ASSYs............................................................................27
Note: The illustrations may be slightly different depending on the model.

Air Filters / Front Panel Si041352EB
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 3 filters are
interchangeable.
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 3 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.
(R9475)
Front Panel
(R13625)
Air filter Hook
(R9477)
Air filter
Titanium apatite photocatalytic
air-purifying filter ASSY
(R9478)
Frame
Titanium apatite photocatalytic
air-purifying filter

Si041352EB 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 Remove the right rotary
shaft in the same way.
4 Remove the front
panel.
Step Procedure Points
(R9479)
Front Panel
(R9480)
(R9481)
(R9482)

Front Grille Si041352EB
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.
You can remove the front
grille without removing the
service cover.
1 Remove the screw and
remove 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.
3 Remove the lower 3
screws.
(R18714)
Service cover
(R9485)
Front grille
(R20476)
Screw cover
(R9488)

Si041352EB Front Grille
Removal Procedure 5
4 Remove the 3 front
grille fixtures.
The Illustration shows the
left fixture.
5 Unfasten the 4 hooks
on the top of the front
grille.
The convex marks (...) on
the front panel indicate the
position of the hooks.
6 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 4 hooks are
fastened as they were.
Step Procedure Points
(R9489)
Front grille fixture
(R9490)
(R9486)
Hook
(R12715)
(R9492)

Electrical Box Si041352EB
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 Remove the screw. The shape of the drip proof
plate varies by the model.
2 Remove the drip proof
plate from the indoor
heat exchanger.
When reassembling, fit the
hook to the indoor heat
exchanger.
3 Remove the screw and
release the earth /
ground wire.
123
(R9494)
Drip proof plate
(R9496)
(R9495)
123
(R18976)
Earth / ground wire

Si041352EB Electrical Box
Removal Procedure 7
4 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.
Cut the clamp if any.
5
6
Remove the 4 screws
on the terminal board
and disconnect the
connecting wire.
Remove the screw and
remove the wire fixture.
7 Disconnect the
connector [S1] and
release the harness
from the hook.
[S1]: fan motor
8 Release the ferrite
core.
Step Procedure Points
123
Indoor heat exchanger thermistor (R22045)
Clip
(R11268)
(R22132)
Clamp
123
(R18715)
Terminal board
Wire
fixture
Connecting wire
123
(R18716)
[S1] Hook
(R9501)
Ferrite core

Electrical Box Si041352EB
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
(R9502)
[S41]
(R18890)
Hook
123
(R9504)
Electrical box
(R9505)
(R9647)
Bottom frame
Hook

Si041352EB 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 of
the terminal board and
remove the terminal
board.
(1 hook at the back)
4 Cut the clamp.
(R22131)
Shield
plate
Hook
(R9507)
(R9508)
Hook
(R22255)
(R9513)
Clamp

PCBs Si041352EB
10 Removal Procedure
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.
9
10
Unfasten the 2 hooks
and remove the signal
receiver PCB.
Disconnect the
connector [S48].
[S48]: to control PCB
Step Procedure Points
(R9514)
Hook
(R13518)
Hook
Signal
receiver
unit
(R9516)
Hook
(R18891)
[S48]
Signal receiver PCB

Si041352EB PCBs
Removal Procedure 11
2. Remove the
INTELLIGENT EYE
sensor PCB.
Some models do not have
the 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
3. Remove the display PCB.
1 Unfasten the 4 hooks
and remove the display
PCB.
Step Procedure Points
(R9523)
Hook
Hook
INTELLIGENT EYE
sensor ASSY
(R9525)
Sensor Shield plate
(R18892)
Shield plate (rear)
Hook
INTELLIGENT EYE
sensor PCB
[S36]
(R9528)
Display PCB

PCBs Si041352EB
12 Removal Procedure
2 Release the harness
from the hook.
[S49]: to control PCB
3 Disconnect the
connector [S49].
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
(R18718)
Hook
[S49]
(R9517)
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

Si041352EB 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 Hold the indoor unit up
with a piece of wood
etc.
2 Remove the screw at
the rear of the indoor
unit.
3 Remove the 2 screws
(front and rear).
(R16287)
Horizontal blade
(R9533)
(R9534)

Horizontal Blades Si041352EB
14 Removal Procedure
4 Release the shafts of
the horizontal blade
(large) in turn.
Removing order
(right →left → inner right
→ inner left)
Step Procedure Points
(R19953)
right
Horizontal
blade (large)
(R9536)
left
(R9537)
inner right
inner left
(R9538)

Si041352EB Horizontal Blades
Removal Procedure 15
5
6
Remove the horizontal
blade (large).
Remove the other
horizontal blade (small)
in the same way.
2. Remove the air outlet
ASSYs.
1 Remove the sealing
material (horizontal).
2 Remove the sealing
material (vertical, 2
positions).
Step Procedure Points
(R9539)
(R9540)
(R9541)

Horizontal Blades Si041352EB
16 Removal Procedure
3 Remove the left air
outlet ASSY by pushing
the 2 hooks at the back.
Remove the center and right
air outlet ASSYs likewise.
4 Unfasten the 4 lower
hooks and the 2 upper
hooks and remove the
fan guard.
Remove the other 2 fan
guards likewise.
Some models have no fan
guard.
Step Procedure Points
(R9542)
Air outlet
ASSY
(R9543)
Hook
Fan guard
(R18719)

Si041352EB Swing Motors
Removal Procedure 17
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 Pull out the drain hose,
then remove the swing
motor unit.
3 Remove the screw at
the center.
(R9546)
Interlock rod
(R13579)
Drain hose
Swing motor
unit
(R9548)

Swing Motors Si041352EB
18 Removal Procedure
4 Remove the 2 pivots. 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 the swing motors
with a screw.
5 Remove the swing
motors.
6 Disconnect the
connector to remove
the swing motor.
2. Remove the swing motor
for vertical blades.
1 Remove the link cover.
Step Procedure Points
(R9549)
(R9550)
Swing motor (lower blade)
Swing motor (upper blade)
(R9551)
(R9552)
Link cover