Daikin FVXG50KV2CW User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Floor Standing Type
5.0/6.0/7.2 kW Class
Si061063

Service Manual
Removal Procedure
Indoor Unit
zHeat Pump
FVXG50KV2CW
FVXG50KV2CN
FVXG60JV2CW
FVXG72JV2CW
FVXG60JV2CN
FVXG72JV2CN

Si061063
Removal Procedure 1
Table of Contents
1. Removal of Air Filters..............................................................................2
2. Removal of Suction Grille........................................................................4
3. Removal of Control PCB .........................................................................6
4. Removal of Electrical Box .....................................................................10
5. Removal of Piping Cover ......................................................................12
6. Removal of Fan Rotor / Fan Motor........................................................13
7. Removal of Front Panel ........................................................................16
8. Removal of Touch Sensor PCB / Signal Receiver PCB /
Display PCB ..........................................................................................19
9. Removal of Swing Motors .....................................................................22
10.Removal of Horizontal Blade Assemblies .............................................23
11.Removal of Indoor Heat Exchanger ......................................................24
Note: The illustrations may be slightly different depending on the model.

Removal of Air Filters Si061063
2Removal Procedure
1. Removal of Air Filters
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. Features
Display
If the system has any
problems, an error code
appears on the temperature
display.
INVERTER
Fixing screw
Vertical
blade
Display
Air outlet
Air inlet
Horizontal
blade
(inside)
Suction
grille
(R13331)
Outdoor
temperature
symbol
ON / OFF switch
(Touch sensor)
Timer display
Temperature display
(Error code display)
Receiver
(R13332)

Si061063 Removal of Air Filters
Removal Procedure 3
2. Remove the air filters.
Caution
Do not force the suction grille
open, or the unit may fall down.
1Open the suction grille.
2Take out the air filters
(right and left).
3. Remove the Titanium
apatite photocatalytic air-
purifying filters.
1The Titanium apatite
photocatalytic air-
purifying filter is
attached to the back of
the air filter.
2Remove the Titanium
apatite photocatalytic
air-purifying filter.
Step Procedure Points
(R11510)
Air filter
(R11511)
Titanium apatite photocatalytic
air-purifying filter
(R13333)
(R11513)

Removal of Suction Grille Si061063
4Removal Procedure
2. Removal of Suction Grille
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 suction grille.
1Open the suction grille,
and remove the 2
screws (right and left).
2Lift the suction grille
and unfasten the 2
hooks at the bottom of
the suction grille.
Remove the suction
grille.
When reassembling the
suction grille, fit the hooks at
the bottom first.
(R11514)
(R11515)
Hook
(R13334)

Si061063 Removal of Suction Grille
Removal Procedure 5
2. Remove the suction grille
levers.
1The suction grille lever
on each side has a
hook.
2Press the hook with a
flat screwdriver.
Remove the suction
grille lever.
Remove the other
suction grille lever in
the same way.
Step Procedure Points
Hook
Suction grille
lever
(R11517)
(R11518)

Removal of Control PCB Si061063
6Removal Procedure
3. Removal of Control PCB
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Remove the 2 screws
(top and bottom on the
left) from the electrical
box cover.
Remove the suction grille
according to “Removal of
Suction Grille”.
2Open the electrical box
cover, and unfasten the
right hook.
3The figure shows the
control PCB.
Screw
(R11519)
Electrical
box cover
Hook
(R13294)
Control PCB
(R13295)

Si061063 Removal of Control PCB
Removal Procedure 7
4Disconnect the
harnesses from the
terminal board.
Upper terminal
brown ----- L
sky blue ----- N
yellow / green ( ) ----- earth
Lower terminal
black (1) ----- power supply
white (2) ----- power supply
red (3) ----- transmission
yellow / green ( ) ----- earth
The thermal fuse is united
with the terminal board.
5Disconnect the
connector [S1].
[S1] : fan motor
6Disconnect the
connector [S5] [S21].
[S5] : thermal fuse
[S21] : display PCB
7Disconnect the
connectors [S26],
[S28], [S32].
[S26] : display PCB
[S28] : display PCB
[S32] : indoor heat exchanger
thermistor
Step Procedure Points
Terminal board
(R13293)
[S1]
(R13296)
[S5]
[S21]
(R13297)
[S32] [S28] [S26]
(R13298)

Removal of Control PCB Si061063
8Removal Procedure
8Disconnect the
connectors [S6], [S8]
for the swing motors.
[S6] : white (right blade)
[S8] : red (left blade)
9
10
Remove the screw of
the earth wires.
Cut the clamp.
Earth terminals: from [FG]
and [GND]
11 Remove the screw of
the air inlet protection
net.
12 Release the room
temperature thermistor
from the holder.
Step Procedure Points
[S8]
[S6]
(R13299)
Clamp
(R13300)
Air inlet
protection net
(R13335)
Room temperature
thermistor
(R13336)

Si061063 Removal of Control PCB
Removal Procedure 9
13 Pull out the room
temperature thermistor
from the hole of the
electrical box.
14 Pinch the 3 spacers of
the control PCB.
Preferably use long-nose
pliers to easily pinch the
spacers.
Section view
15 Remove the control
PCB.
Step Procedure Points
(R13337)
Spacer
(R13305)
Electrical Box PCB
(R13352)
Control PCB (R13301)

Removal of Electrical Box Si061063
10 Removal Procedure
4. Removal of Electrical Box
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Remove the screw of
the earth wire.
Remove the electrical box
cover according to “Removal
of Control PCB”.
You can remove the
electrical box without
removing the control PCB.
Earth terminal: for indoor
heat exchanger
2Remove the screws of
the terminal board and
disconnect the
connecting wires.
3Remove the 2 screws
of the resin clamps.
The resin clamp of the power
cable is fixed with a torx
tapping screw.
4Pull out the connecting
wires and the power
cable ASSY from the
holes of the electrical
box.
The harnesses are tied up
with clamps.
5Release the harnesses
from the hook.
Earth wire
(R13302)
Terminal board
Resin clamp Power cable ASSY
Resin clamp
(R13303)
Connecting
wire
(R13304)

Si061063 Removal of Electrical Box
Removal Procedure 11
6Remove the 4 screws
and remove the
electrical box.
When reassembling, engage
the hook into the inner side
of the unit.
Step Procedure Points
(R13313)
Hook
(R13314)

Removal of Piping Cover Si061063
12 Removal Procedure
5. Removal of Piping Cover
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Remove the screw and
remove the piping
cover.
Remove the suction grille
according to “Removal of
Suction Grille”.
When reassembling, engage
the hook into the inner side
of the unit.
2The figure shows the
pipe connections.
Piping
cover
(R11537)
Hook
(R11538)
Drain hose
(R13315)
Gas pipe
(φ12.7)
Liquid pipe
(φ6.4)

Si061063 Removal of Fan Rotor / Fan Motor
Removal Procedure 13
6. Removal of Fan Rotor / Fan Motor
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 fan rotor. Remove the suction grille
and electrical box according
to “Removal of Suction
Grille” and “Removal of
Electrical Box”.
You can remove the fan
rotor and fan motor without
removing the electrical box.
1Remove the screw of
the bell mouth.
2Turn the bell mouth
counterclockwise and
pull it out.
3Remove the nut and
pull out the fan rotor.
Bell mouth
(R11540)
(R11541)
Fan rotor
Nut
(R11542)
Shaft
D-cut
Nut size: M6
10 mm
(R12236)

Removal of Fan Rotor / Fan Motor Si061063
14 Removal Procedure
2. Remove the fan motor.
1(1) Disconnect the relay
harness.
(2) Pinch the both sides
of the spring.
(3) Pull out the
connector from the
plate.
2Loosen the 4 screws of
the fan motor stand.
3Remove the fan motor
stand.
Step Procedure Points
(3)
(2)
(2)
(1)
(R11543)
Fan motor stand
(R11544)
(R11545)

Si061063 Removal of Fan Rotor / Fan Motor
Removal Procedure 15
4Cut the clamp and
release the harness
from the fan motor
stand.
Before tightening screws, be
sure that the rubber vibration
isolators firmly fit into the fan
motor stand when
reassembling.
5Remove the 4 screws
and remove the fan
motor from the stand.
Step Procedure Points
(R13338)
Fan motor
Screw
Fan motor Stand
Clamp
Screw
Rubber vibration
isolator

Removal of Front Panel Si061063
16 Removal Procedure
7. Removal of Front Panel
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 vertical
blades.
1Release the 2 center
hooks of the vertical
blade.
2Release the upper shaft
and remove the vertical
blade.
3Remove the other
vertical blade in the
same way.
2. Remove the front panel.
1Remove the screw and
remove the wire
harness cover.
2Cut the clamp of the
wire harness.
INVERTER
Shaft
Front panel
Hook
Vertical blade (R13339)
You can remove the front
panel without removing the
vertical blade.
Wire
harness
cover
(R11547)
(R11548)

Si061063 Removal of Front Panel
Removal Procedure 17
3Remove the 2 screws
of the front panel.
4Remove the 4 screw
covers.
5Remove the 4 screws.
Step Procedure Points
Front
panel
(R11549)
INVERTER
Screw
cover
(R11550)

Removal of Front Panel Si061063
18 Removal Procedure
6Lift the front panel up to
unfasten the 6 hooks
and pull it out.
Step Procedure Points
INVERTER
(R11551)