Daikin FTXM09VVJU User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
9000/12000/18000/24000 Btu/h Class
Si042153E

Service Manual
Removal Procedure
Indoor Unit
Heat Pump
FTXM09VVJU
FTXM12VVJU
FTXM18VVJU
FTXM24VVJU

Si042153E
Removal Procedure 1
Table of Contents
1. Front Panel / Air Filters ...........................................................................2
2. Front Grille ..............................................................................................5
3. Electrical Box ..........................................................................................7
4. PCBs .......................................................................................................9
5. Horizontal Swing Motors .......................................................................14
6. Drain Pan ..............................................................................................17
7. Vertical Swing Motor .............................................................................19
8. Indoor Heat Exchanger .........................................................................22
9. Fan Rotor / Fan Motor...........................................................................24
Note: The illustrations may be slightly different depending on the model.

Front Panel / Air Filters Si042153E
2Removal Procedure
1. Front Panel / 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. Appearance
1 Appearance and name
of parts.
A beep and blinking of the
operation lamp are indication
of received signal from the
remote controller.
Pressing ON/OFF switch for
5 seconds or longer can start
forced cooling operation.
2. Remove the front panel.
1 Open the front panel
until it stops.
2 Slide each rotary shaft
outward and pull up to
remove.
When reassembling the front
panel, fit the right and left
rotary shafts one by one into
the grooves and fully push
them in position.
(R26137)
Signal
receiver
ON/OFF switch/
OPERATION lamp
INTELLIGENT EYE sensor
Wireless LAN
connection
adapter lamp
INTELLIGENT
EYE lamp
CLEAN lamp
TIMER lamp
(R26138)
Front panel
Left Rotary shaft
(R26139)
Right
Rotary shaft
(R26140)

Si042153E Front Panel / Air Filters
Removal Procedure 3
3 Remove the front panel.
3. Remove the air filters. The air filters can be
removed without removing
the front panel.
1 Push the filter tab at the
center of the air filter a
little upward to unfasten
the 2 hooks.
2
3
Pull out the air filter
downward to remove it.
Remove the other air
filter in the same way.
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.
Step Procedure Points
Front panel
Groove
(R26141)
(R26142)
Filter tab
Hook
(R26143)
Air filter
"FRONT" mark

Front Panel / Air Filters Si042153E
4Removal Procedure
4. Remove the optional
filters.
The right and left optional
filters are interchangeable.
1 Unfasten the 4
projections to remove
the optional filter ASSY.
2
3
Unfasten the 5 hooks
and remove the
optional filter from its
frame.
Remove the other
optional filter in the
same way.
Step Procedure Points
Projection Projection
Back side
Optional filter ASSY
(R22881)
Optional filter
Hook
Hook
(R23512)

Si042153E Front Grille
Removal Procedure 5
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. Disconnect the
connecting wire.
There is no hook at the top
of the service cover. Be
careful not to drop it when
the screw is removed.
Screw size: M4 × 12 (with
washer)
1 Remove the screw and
remove the service
cover.
2
3
Remove the screw,
unfasten the hook and
remove the wire fixture.
Loosen the 4 screws of
the terminal strip and
disconnect the
connecting wire.
When reassembling, be sure
to fasten the hook before
tightening the screw.
2. Remove the front grille. Installation procedure
(1) Since the key pattern shaft 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.
18/24 class have 2 center
shafts.
1 Release the center
shaft(s) while bending
the horizontal blade (2)
slightly.
Service cover
(R26144)
Wire fixture Connecting wire Hook
Terminal strip Screw
(R26145)
Hook (R26146)
Horizontal blade (2) Center shaft
(R26147)

Front Grille Si042153E
6Removal Procedure
2
3
Release the left shaft.
Release the right key
pattern shaft and
remove the horizontal
blade (2).
4
5
Use the flat screwdriver
to open the screw
covers.
Remove the screws.
The numbers of screw
covers and screws on front
grille are depending on the
models.
When removing the screw
covers, cover the tip of the
flat screwdriver with a cloth
to avoid damaging the grille.
6
7
Unfasten the 3 hooks at
the top.
Pull out the upper part
of the front grille, 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.
Step Procedure Points
(R26148)
Shaft
Left
(R26149)
Key pattern shaft
Right
Small type models
Screw cover
(R26150)
Large type models
Screw cover
(R26151)
Screw cover
(R26069)
Hook
Front grille (R26152)
Hook
(R26071)

Si042153E Electrical Box
Removal Procedure 7
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.
Slide the electrical box
cover forward to
unfasten the hook, and
then remove it.
Screw size: M4 × 12 (with
washer)
When reassembling, make
sure that the hook is
securely fastened.
3
4
5
6
Disconnect the
connector [S200].
Release the harnesses
from the hook and the
slit.
Disconnect the
connector [S400].
Release the harnesses
from the 5 hooks and
the notch.
[S200]: fan motor
[S400]: swing motors
7 Remove the screw, and
then the drip proof
plate.
Hook
Electrical box cover
(R26153)
[S400]
[S200]
Hook
Hook Hook
Notch
Hook
Slit
(R26155)
Drip proof plate (R26156)

Electrical Box Si042153E
8Removal Procedure
8
9
Remove the screw and
detach the earth/ground
wire.
Pull out the indoor heat
exchanger thermistor.
Screw size: M4 × 12 (with
washer)
Be careful not to lose the clip
of the thermistor.
The position of the indoor
heat exchanger thermistor
varies depending on the
model.
10 Remove the screw of
the electrical box.
11 Pull the electrical box to
the front and remove it.
When reassembling, make
sure that the 2 hooks are
securely fastened to the
bottom frame.
When reassembling, be
careful not to get the fan
motor wire caught between
the electrical box and the
bottom frame.
12
13
Remove the screw and
unfasten the hook to
detach the conduit
mounting plate.
Loosen the nut lock and
remove the conduit
together with the
connecting wire.
Step Procedure Points
Earth/ground wire
Indoor heat exchanger thermistor
(R26157)
(R11268)
Clip
Electrical box
(R26158)
Fan motor wire
Bottom frame
Hook
Back view
Nut lock
Hook
Conduit
Conduit mounting plate
(R26159)