Daikin Super Multi NX FVXS25FV1B User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Floor Standing Type
2.5/3.5/5.0 kW Class
Si061061

Service Manual
Removal Procedure
Indoor Unit
zCooling Only zHeat Pump
FVXS25FV1B FVXS25FV1B
FVXS35FV1B FVXS35FV1B
FVXS50FV1B FVXS50FV1B

Si061061
Removal Procedure 1
Table of Contents
1. Removal of Air Filter / Front Panel / Front Grille .....................................2
2. Removal of Horizontal Blade...................................................................6
3. Removal of Electrical Box .......................................................................7
4. Removal of PCBs....................................................................................9
5. Removal of Vertical Blades ...................................................................13
6. Removal of Indoor Heat Exchanger......................................................16
7. Removal of Fan Rotor / Fan Motor........................................................17
Note: The illustrations may be slightly different depending on the model.

Removal of Air Filter / Front Panel / Front Grille Si061061
2Removal Procedure
1. Removal of Air Filter / Front Panel / Front Grille
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1. Features
2. Remove the front panel.
(R6768)
Slide the right and the left
hooks to the center.
1 Unfasten the 2 hooks
on the top of the front
panel.
(R6765)
Operation lamp Timer lamp
(R6766)
Indoor Unit
[ON/OFF] button
Front panel
(R6767)

Si061061 Removal of Air Filter / Front Panel / Front Grille
Removal Procedure 3
2 Open the front panel.
3 Press the 2 hooks of
the top of the air filter
downward and
unfasten them.
4 Pull the air filter up and
remove it.
Step Procedure Points
String
(R11496)
Hook
(R11497)
(R11498)
Air filter

Removal of Air Filter / Front Panel / Front Grille Si061061
4Removal Procedure
5 Release the string from
the hook.
6 Release the 3 hooks of
the bottom of the front
panel and remove the
front panel.
When installing the air filter,
catch the 2 hooks of the front
grille.
When installing the front
panel, catch the 3 hooks of
the front grille and hitch the
string to prevent the front
panel from dropping.
7 Remove the 4 screws
from the front grille.
Step Procedure Points
(R6772)
Hook for the air filter
Hook for the front panel
Front grille
(R17116)
(R6774)

Si061061 Removal of Air Filter / Front Panel / Front Grille
Removal Procedure 5
8 Pull the front grille to
your side to remove.
There are 3 hooks on the top
of the main unit.
Step Procedure Points
(R6775)

Removal of Horizontal Blade Si061061
6Removal Procedure
2. Removal of Horizontal Blade
Procedure 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
right and the left shafts
and remove the
horizontal blade.
Release the left shaft first
and then release the right
shaft from the key alignment.
Horizontal blade
(R6778)
(R6779)
Key alignment
(R6780)

Si061061 Removal of Electrical Box
Removal Procedure 7
3. Removal of Electrical Box
Procedure 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 2 earth
wire screws.
Unfasten the hook and
lift the sensor PCB
fixing plate.
3 Remove the front
shield plate.
4 To detach the
connection wires,
remove the screw
from the wiring
fixture and remove
the 4 screws from
the terminal board.
Sensor PCB fixing plate
Hook
(R14973)
Earth
screw
Front shield plate
(R6782)
Wiring fixture
(R6783)
Terminal
board
Connection
wires

Removal of Electrical Box Si061061
8Removal Procedure
5 Disconnect the
3 connectors
[S1] [S41] [S42].
[S1] : fan motor
[S41]: lower air outlet motor
[S42]: swing motor
6 Remove the screw of
the electrical box.
7 Pull out the electrical
box.
8 Pull out the indoor heat
exchanger thermistor.
Step Procedure Points
[S42]
[S41]
[S1]
(R6784)
(R6785)
Electrical
box
(R6786)
(R6787)
Indoor heat
exchanger
thermistor