Daikin FWXV15AVEB User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Fan Coil Unit: Convector
Floor Standing Type
1.5/2.0 kW Class
Si061062

Service Manual
Removal Procedure
Indoor Unit
zHeat Pump
FWXV15AVEB
FWXV20AVEB

Si061062
Removal Procedure 1
Table of Contents
1. Removal of Air Filter / Front Panel / Front Grille .....................................2
2. Removal of Horizontal Blade...................................................................5
3. Removal of Main Electrical Box / Sub Electrical Box ..............................6
4. Removal of PCB from Sub Electrical Box ...............................................9
5. Removal of PCB from Main Electrical Box............................................11
6. Removal of Upper Vertical Blades ........................................................15
7. Removal of Lower Vertical Blades ........................................................17
8. Removal of Indoor Heat Exchanger......................................................21
9. Removal of Fan Rotor / Fan Motor........................................................22
Note: The illustrations may be slightly different depending on the model.

Removal of Air Filter / Front Panel / Front Grille Si061062
2Removal Procedure
1. Removal of Air Filter / Front Panel / Front Grille
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. External appearance
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.
2 Open the front panel.
ON/OFF
(R12437)
ON/OFF
(R12438)
Operation
lamp TIMER lamp Signal Receiver
ON/OFF switch
ON/OFF
Front panel
(R12446)
ON/OFF
(R12447)

Si061062 Removal of Air Filter / Front Panel / Front Grille
Removal Procedure 3
3 Press and unfasten the
2 hooks of the air filter.
4 Pull out the air filter.
5 Remove the Titanium
apatite photocatalytic
air-purifying filter
ASSY.
The Titanium apatite
photocatalytic air-purifying
filter ASSY is attached to the
back of the air filter.
6 Release the string from
the hook.
Lift up the front panel to
unfasten the 3 hooks at
the bottom and then
remove the front panel.
Step Procedure Points
ON/OFF
(R12448)
Air filter
ON/OFF
(R12449)
(R12450)
Titanium apatite photocatalytic
air-purifying filter ASSY
ON/OFF
(R12451)
Hook for the front
panel
String

Removal of Air Filter / Front Panel / Front Grille Si061062
4Removal Procedure
When installing the air filter,
catch the 2 hooks at the
bottom.
When installing the front
panel, catch the 3 hooks of
the front grille and hook the
string to prevent the front
panel from dropping.
7 Remove the 4 screws
from the front grille.
8 Pull out the front grille
and remove it.
Open the horizontal blade to
remove the front grille
smoothly.
There are 3 hooks on the top
of the main unit.
Step Procedure Points
Hook for the air filter
Hook for the front panel
(R12452)
ON/OFF
(R12453)
Front grille
(R6775)

Si061062 Removal of Horizontal Blade
Removal Procedure 5
2. Removal of Horizontal Blade
Procedure Warning Be sure to wait 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)

Removal of Main Electrical Box / Sub Electrical Box Si061062
6Removal Procedure
3. Removal of Main Electrical Box / Sub Electrical Box
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1
2
Remove the 2 earth
screws.
Unfasten the hook and
open the sensor PCB
fixing plate.
3 Remove the front
shield plate.
4 Remove the 1 screw of
the wiring fixture and
remove the 4 screws of
the connection wires.
5 Remove the screw and
remove the terminal
board.
Hook
(R12439)
Earth
screw
Sensor PCB
fixing plate
(R12440)
Front shield
plate
Wiring fixture
(R12441)
Connection
wires
(R12442)
Terminal
board

Si061062 Removal of Main Electrical Box / Sub Electrical Box
Removal Procedure 7
6 Disconnect the
connectors [S1] [S41]
[S42].
[S1]: fan motor
[S41]: lower air outlet motor
[S42]: swing motor
[S43]: Sub PCB
7 Release the
harnesses.
8 Remove the screw of
the main electrical box.
The sub electrical box is
screwed to the bottom frame
at the back.
9 Release the wiring
from the clamp.
Remove the screw of
the sub electrical box.
Step Procedure Points
[S42]
[S41]
[S1]
[S43]
(R12460)
(R12461)
(R12462)
Main electrical box
Clamp
Screw
Screw
Screw
(R12470)
Sub
electrical
box

Removal of Main Electrical Box / Sub Electrical Box Si061062
8Removal Procedure
10 Remove the main
electrical box and the
sub electrical box.
11 Pull out the indoor heat
exchanger thermistor.
Step Procedure Points
(R12753)
Sub electrical
box
Main electrical
box
(R12454)
Indoor heat
exchanger thermistor

Si061062 Removal of PCB from Sub Electrical Box
Removal Procedure 9
4. Removal of PCB from Sub Electrical Box
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1 External appearance of
the sub electrical box.
2 Peel the tape.
3 Unfasten the 2 hooks.
(R12455)
To main
electrical box
Sub
electrical
box
(R12486)
(R12465)

Removal of PCB from Sub Electrical Box Si061062
10 Removal Procedure
4 Open the cover.
5 Disconnect the
connectors [S10] [S30]
[S40].
[S10] [S30]: control PCB
[S40]: terminal board
6 Detach the 4 spacer
with pliers.
7 Remove the sub PCB.
Step Procedure Points
(R12466)
Cover
(R12467)
[S10]
[S30]
[S40]
(R12468)
(R12469)
Sub PCB

Si061062 Removal of PCB from Main Electrical Box
Removal Procedure 11
5. Removal of PCB from Main Electrical Box
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. Remove the shield plate.
1Pull out the clamp.
2 Unfasten the 8 hooks
and remove the shield
plate.
2. Remove the PCBs.
1Unfasten the 2 hooks
of the sensor PCB.
2 Disconnect the
connector [S49] and
remove the sensor
PCB.
[S49]: control PCB
(R12459)
Hook
Hook
Hook
Shield plate
(R12759)
(R12456)
Sensor
PCB
(R12457)
[S49]

Removal of PCB from Main Electrical Box Si061062
12 Removal Procedure
3 Disconnect the
connector [S19].
[S19]: sub PCB
4 Cut the clamp.
5 Disconnect the
connectors [S26] [S46]
[S48].
[S26]: service PCB
[S46]: display PCB
[S48]: sensor PCB
6 Open and remove the
lamp cover.
Step Procedure Points
(R12477)
[S19]
(R12478)
(R12479)
[S46][S48] [S26]
(R12480)
lamp cover

Si061062 Removal of PCB from Main Electrical Box
Removal Procedure 13
7 The figure shows the
layout of the service
PCB and the display
PCB. They are
positioned at the back
of the lamp cover.
8 Unfasten the 2 hooks
of the service PCB.
9 Remove the service
PCB.
Step Procedure Points
(R12471)
Service PCB
Display PCB
(R12475)
Service PCB
(R12476)

Removal of PCB from Main Electrical Box Si061062
14 Removal Procedure
10 Unfasten the 2 hooks
and remove the display
PCB.
11
12
Remove the 2 screws
of the control PCB.
Unfasten the hook and
remove the control
PCB.
Step Procedure Points
(R12464)
Display PCB
(R12472)
Hook
(R12474)

Si061062 Removal of Upper Vertical Blades
Removal Procedure 15
6. Removal of Upper Vertical Blades
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Disconnect the
connector [S42] and
release the harness
from the hook.
[S42]: swing motor
2Remove the 2 screws
and remove the air
outlet ASSY.
3 Remove the 2 screws
and remove the swing
motor.
(R12482)
[S42]
(R12481)
Screw Air outlet ASSY Screw
(R12487)
Swing motor
Shaft
(R12488)

Removal of Upper Vertical Blades Si061062
16 Removal Procedure
4 The air outlet ASSY
has 2 vertical blades
ASSYs.
5 Unfasten the 2 hooks
and remove the vertical
blades ASSY.
6 Slide the protection net
along the right and the
left grooves and
remove it.
Step Procedure Points
Vertical blades ASSY
(R12483)
Center hook
Hook (R12484)
Groove
Protection net
(R12485)

Si061062 Removal of Lower Vertical Blades
Removal Procedure 17
7. Removal of Lower Vertical Blades
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1 Cut the 2 clamps.
2 Disconnect the pipings.
3Remove the 2 screws.
(R12498)
Insulation
material
(R12499)
(R12489)

Removal of Lower Vertical Blades Si061062
18 Removal Procedure
4 Disconnect the drain
hose.
Be careful not to wet the
floor with drain.
5 Disconnect the
connector [S41].
[S41]: lower air outlet motor
6 Release the harness
from the clamp.
Step Procedure Points
Drain hose (R12490)
[S41]
(R12754)
Clamp
(R12748)