Daikin Super Multi NX FVXS35FV1B User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Floor Standing Type
2.5/3.5/4.5/5.0 kW Class
9000/12000/15000/18000 Btu/h Class
Si061262EE

Service Manual
Removal Procedure
Indoor Unit
zHeat Pump
FVXS25FV1B
FVXS35FV1B
FVXS50FV1B
FVXS25KV1A
FVXS35KV1A
FVXS45LV1A
FVXS50KV1A
FVXS25RV1A
FVXS35RV1A
FVXS45RV1A
FVXS09NVJU
FVXS12NVJU
FVXS15NVJU
FVXS18NVJU

Si061262EE
Removal Procedure 1
Table of Contents
1. Air Filters / Front Panel / Front Grille.......................................................2
2. Horizontal Blade......................................................................................5
3. Electrical Box ..........................................................................................6
4. PCBs .......................................................................................................9
5. Vertical Blade ASSYs............................................................................13
6. Indoor Heat Exchanger .........................................................................16
7. Fan Rotor / Fan Motor...........................................................................17
Note: The illustrations may be slightly different depending on the model.

Air Filters / Front Panel / Front Grille Si061262EE
2Removal Procedure
1. Air Filters / Front Panel / 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 Unfasten the 2 hooks
on the top and open the
front panel.
Slide the right and the left
hooks toward the center to
unfasten them.
2 Unfasten the 2 upper
hooks of the air filter.
When installing the air filter,
make sure the 4 hooks are
securely fastened.
3 Pull the air filter up and
remove it.
Front panel (R22133)
(R22134)
Hook
Hook (R22135)
Air filter
(R22136)

Si061262EE Air Filters / Front Panel / Front Grille
Removal Procedure 3
4 Release the 4
projections and remove
the Titanium apatite
deodorizing filter ASSY
from the air filter.
5
6
Release the 4 hooks
and remove the
Titanium apatite
deodorizing filter from
the frame.
Remove the other
Titanium apatite
deodorizing filter ASSY
in the same way.
7 Release the string from
the hook.
8 Release the 3 hooks of
the bottom of the front
panel and remove the
front panel.
When installing the front
panel, catch the 3 hooks of
the front grille and hitch the
string to prevent the front
panel from dropping.
Step Procedure Points
Air filter
(R24290)
Projection Projection
Titanium apatite deodorizing
filter ASSY
Hook Hook
Frame
Titanium apatite deodorizing filter
(R24291)
Hook
Front grille
(R24292)
Hook
Front panel (R22749)

Air Filters / Front Panel / Front Grille Si061262EE
4Removal Procedure
9 Remove the 4 screws
from the front grille.
10 Pull the front grille to
remove.
There are 3 hooks on the top
of the main unit.
11 Slide the operation
panel cover to the left
and remove it.
When reassembling, make
sure that all the 4 hooks at
the back are fastened.
Step Procedure Points
(R22141)
Hook
Front grille
(R22750)
Operation panel cover
(R22143)
Hook
(R22144)

Si061262EE Horizontal Blade
Removal Procedure 5
2. 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
2
Open the horizontal
blade.
Release the center
shaft.
3 Bend the horizontal
blade to release the left
shaft.
4 Release the right shaft
and remove the
horizontal blade.
Reassembling procedure
1. Fit the horizontal blade to the
right shaft first. Make sure to
rotate the horizontal blade so
the shaft fits correctly.
2. Fit the horizontal blade to the
center and left shafts.
Horizontal blade
(R22145)
Left
shaft
(R24276)
Right shaft
(R24277)

Electrical Box Si061262EE
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 Unfasten the hook and
lift the sensor PCB
fixing plate.
2 Remove the 2 screws
and detach the earth/
ground wires.
3 Remove the front shield
plate.
Hook
Sensor
PCB
fixing plate
(R22148)
Earth/ground wire
(yellow/green)
Earth/ground
wire (green)
(R24278)
Front shield plate
(R22150)

Si061262EE Electrical Box
Removal Procedure 7
4
5
Remove the screw,
unfasten the hook and
remove the wire fixture.
Remove the 4 screws
from the terminal board
and remove the
connecting wire.
For U.S. models
When reassembling, make
sure that the connecting wire
is passed through the
conduit hole at the bottom of
the unit.
When reassembling, make
sure to fasten the hook
before tightening the screw
of the wire fixture.
6 Disconnect the
connectors [S1], [S41]
and [S42].
[S1]: fan motor
[S41]: lower air outlet motor
[S42]: swing motor
Step Procedure Points
Wire fixture
Terminal
board
Connecting
wire
(R22151)
Conduit
Lock nut
Conduit
mounting
plate
Back view
(R24392)
Hook
Wire
fixture (R22152)
[S42]
[S41]
[S1]
(R22153)

Electrical Box Si061262EE
8Removal Procedure
7 Remove the screw of
the electrical box.
8 Pull out the electrical
box.
9 Pull out the indoor heat
exchanger thermistor.
Be careful not to lose the clip
of the thermistor.
Step Procedure Points
Electrical box
(R22154)
Electrical box
(R22155)
Indoor heat exchanger
thermistor
(R22156)
Clip
(R11268)