Daikin Super Multi NX FTXG25JV1BW User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
2.5/3.5/5.0 kW Class
Si041146

Service Manual
Removal Procedure
Indoor Unit
Applicable Models
zHeat Pump
FTXG25JV1BW
FTXG25JV1BS
FTXG35JV1BW
FTXG35JV1BS
FTXG50JV1BW
FTXG50JV1BS

Si041146
Removal Procedure 1
Table of Contents
1. Removal of Air Filters / Front Panel ........................................................2
2. Removal of Horizontal Blades.................................................................6
3. Removal of Front Grille ...........................................................................8
4. Removal of Front Panel Mechanism ASSY ..........................................11
5. Removal of Display Lens ASSY............................................................13
6. Removal of Reduction Motor / Limit Switch ..........................................14
7. Removal of Fan Guards / Electrical Box ...............................................16
8. Removal of PCBs..................................................................................19
9. Removal of Swing Motors .....................................................................25
10.Removal of Indoor Heat Exchanger ......................................................26
11.Removal of Fan Rotor / Fan Motor........................................................29
12.Removal of Vertical Blade ASSYs ........................................................32
Note: The illustrations may be slightly different depending on the model.

Removal of Air Filters / Front Panel Si041146
2Removal Procedure
1. Removal of Air Filters / Front Panel
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1. Appearance feature
2. Remove the air filters.
1Open the front panel.
2Keep the front panel
open with the support
plate.
(R12067)
(R12068)
INTELLIGENT EYE sensor
Room temperature thermistor
Multi-colored
indicator lamp /
TIMER lamp
Signal receiver and
ON/OFF button
Front panel
(R12069)
(R12070)
Support plate

Si041146 Removal of Air Filters / Front Panel
Removal Procedure 3
3Lift the air filter upwards
slightly, and then pull it
out downwards.
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.
Be sure to insert the hooks
(at 2 lower positions) when
mounting the air filter.
3. Remove the Titanium
apatite photocatalytic air-
purifying filter.
The Titanium apatite
photocatalytic air-purifying
filter is not marked for
difference between the right
and left sides.
1The Titanium apatite
photocatalytic air-
purifying filter is
attached to the rear of
the air filter.
Step Procedure Points
(R12071)
Air filter
(R12072)
(R12073)
Titanium apatite photocatalytic
air-purifying filter

Removal of Air Filters / Front Panel Si041146
4Removal Procedure
2
3
Release the protrusions
and remove the
Titanium apatite
photocatalytic air-
purifying filter frame.
Remove the Titanium
apatite photocatalytic
air-purifying filter.
4. Remove the front panel.
1Open the front panel.
Step Procedure Points
(R12074)
(R15282)
(R12075)

Si041146 Removal of Air Filters / Front Panel
Removal Procedure 5
2Release the front panel
locks on each side.
3Remove the front panel.
Step Procedure Points
(R12076)
Front panel lock
Right
(R12077)
Left
(R12078)

Removal of Horizontal Blades Si041146
6Removal Procedure
2. Removal of Horizontal Blades
Procedure 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
blade (large).
1Bend the horizontal
blade (large) slightly
and release the center
shaft.
2Release the left shaft.
3Slide the horizontal
blade (large) to the left
and release the right
shaft.
(R12079)
Horizontal blade
(large)
(R12080)
(R12081)

Si041146 Removal of Horizontal Blades
Removal Procedure 7
2. Remove the horizontal
blade (small).
1Bend the horizontal
blade (small) slightly
and release the center
shaft.
2Release the left shaft.
3Slide the horizontal
blade (small) to the left
and release the right
shaft.
Step Procedure Points
(R12082)
Horizontal blades (small)
(R12083)
(R12084)

Removal of Front Grille Si041146
8Removal Procedure
3. Removal of 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
1Remove the 2 screws
of the decoration panel
(right).
2Open the decoration
panel (right).
Unfasten the 3 hooks
and remove it.
3Remove the decoration
panel (left) in the same
way.
4Remove the screw and
remove the service
cover.
Decoration panel
(R12085)
(R12086)
(R12087)
Service cover

Si041146 Removal of Front Grille
Removal Procedure 9
5Disconnect the relay
connector for the
reduction motor.
6Open the 2 screw
covers with a flat
screwdriver.
7Remove the 2 screws.
Step Procedure Points
(R12088)
Relay connector
Screw cover
(R12089)
(R12090)

Removal of Front Grille Si041146
10 Removal Procedure
8Remove the screw.
9Remove the screw.
10 Unfasten the 3 hooks
on the top of the front
grille.
11 Remove the front grille.
Step Procedure Points
(R12091)
(R12164)
(R12092)
Front grille
(R12093)

Si041146 Removal of Front Panel Mechanism ASSY
Removal Procedure 11
4. Removal of Front Panel Mechanism ASSY
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Remove the 2 screws
of the front grille (right).
2Remove the guide
panel.
3Remove the front panel
mechanism ASSY
(right), holding the
shaft.
Remove the front panel
mechanism ASSY (left) in
the same way.
(R12094)
(R12095)
Guide panel
Front panel
mechanism ASSY
(R12096)
Shaft

Removal of Front Panel Mechanism ASSY Si041146
12 Removal Procedure
4Remove the shaft
holder and the cover
shaft.
5Remove the shaft.
Step Procedure Points
Cover shaft
Shaft holder
(R12097)
(R12098)

Si041146 Removal of Display Lens ASSY
Removal Procedure 13
5. Removal of Display Lens ASSY
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Remove the display
lens ASSY by turning it
counterclockwise.
2Unfasten the hook and
remove the cover.
Display lens ASSY
(R12102)
(R12103)
Cover

Removal of Reduction Motor / Limit Switch Si041146
14 Removal Procedure
6. Removal of Reduction Motor / Limit Switch
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Cut the clamp of the
front panel mechanism
ASSY (right).
2Release the harness
from the hooks.
3Pull out the terminals of
the limit switch.
(R12104)
(R12105)
(R12106)
Limit switch

Si041146 Removal of Reduction Motor / Limit Switch
Removal Procedure 15
4Remove the screw of
the reduction motor.
5Remove the reduction
motor by turning it
counterclockwise.
6Remove the limit
switch.
Step Procedure Points
Reduction motor
(R12107)
(R12108)
Limit switch
(R12109)

Removal of Fan Guards / Electrical Box Si041146
16 Removal Procedure
7. Removal of Fan Guards / 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. Remove the fan guards. Use a sharp tool such as an
awl to unfasten the lower
hooks.
1Unfasten the 2 hooks
and remove the fan
guard.
2. Remove the electrical
box.
Preparation
Remove the front grille
according to the “Removal of
Front Grille”.
1Remove the screw and
remove the drip proof
plate.
2Remove the screw and
release the earth wire.
Pull out the indoor heat
exchanger thermistor.
Fan guard
(R12110)
Drip proof plate
(R15283)
Earth wire
Indoor heat exchanger thermistor
(R12112)

Si041146 Removal of Fan Guards / Electrical Box
Removal Procedure 17
3Remove the screws
and release the
connecting wires.
4Remove the shield
plate.
5Disconnect the
connectors for the
swing motors [S41] and
for the fan motor
[S200].
Step Procedure Points
(R12113)
Connecting wire
Shield plate
(R12114)
[S41]
[S200]
(R12115)

Removal of Fan Guards / Electrical Box Si041146
18 Removal Procedure
6Release the harnesses.
7Remove the screw.
8Unfasten the 2 hooks
and remove the
electrical box.
There are 2 hooks on the
bottom frame. When
reassembling, fit the rear
side of the electrical box to
the hooks.
Step Procedure Points
(R12116)
(R12117)
Electrical box
(R12118)