Daikin FVXD56FV2C User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Floor Standing Type
5.6 kW Class
Si06-762

Service Manual
Removal Procedure
Indoor Unit
zHeat Pump
FVXD56FV2C

Si06-762
Removal Procedure 1
Table of Contents
1. Removal of Air filter.................................................................................2
2. Removal of Suction Grille........................................................................4
3. Removal of Power Supply / Control PCB................................................6
4. Removal of Piping Fixture .....................................................................10
5. Removal of Electrical Box .....................................................................11
6. Removal of Fan Rotor / Fan Motor........................................................13
7. Removal of Front Panel ........................................................................14
8. Removal of Display PCB.......................................................................15
9. Removal of Heat Exchanger .................................................................17

Removal of Air filter Si06-762
2Removal Procedure
1. Removal of Air filter
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 gets in trouble,
an error code appears on
the temperature display.
Vertical Blades
Air Inlet
Air Outlet
Front Panel
Display
Fixing Screws
Horizontal
Blades
(Inside)
Suction Grille
(R2437)
Temperature Display
(Error Codes Display)
Intelligent Eye Indoor / Outdoor
Temperature Display Switch
On / Off Switch
(Test Run Switch)
(R2438)

Si06-762 Removal of Air filter
Removal Procedure 3
2. Remove the air filter.
Warning :
Make sure the horizontal blades
are closed. Otherwise the air
filter cannot be pulled out.
(These blades shut themselves
when the system stops.)
Note :
Do not force the suction grille
open. It may come off, and you
may get injured by the internal
fan or the unit may fall down.
1Put your fingers on the
right and left air inlets,
and open the suction
grille.
2Grip the top knob, and
draw up and out the air
filter.
Titanium Apatite
Photocatalytic Air-Purifying
Filters are located behind
the air filter.
Step Procedure Points
(R2439)
(R2440)
Titanium
Apatite
Photocatalytic
Air-Purifying
Filters
(R7275)

Removal of Suction Grille Si06-762
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 (one each on
the right and left).
(R2439)
Screws
(R2442)

Si06-762 Removal of Suction Grille
Removal Procedure 5
2Tilt the suction grille
toward yourself first and
then lift it out of
position. (Undo the 2
claws at the bottom of
the suction grille.)
When placing the suction
grille back in position, fit the
claws at the bottom first.
Step Procedure Points
(R2443)
Claws
(R2444)

Removal of Power Supply / Control PCB Si06-762
6Removal Procedure
3. Removal of Power Supply / Control PCB
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 power supply/
control PCB.
Remove the suction grille.
1Remove the 2 screws
(top and bottom on the
left) off the electrical
box cover.
2Open the electrical box
cover, and undo the
right-hand hook.
3The figure at right
shows the power
supply / control PCB.
Terminal strip board for
power supply
Upper row:
1-blue, 2-brown,
3-empty, -green / yellow
Lower row:
1-white, 2-black, 3-red
Screws
(R2445)
Hook
(R2446)
(R2480)
Earth wire
Connection Wiring
Glass Tube
Thermal Fuse
JA
Wireless Remote
Controller Address
Jumper

Si06-762 Removal of Power Supply / Control PCB
Removal Procedure 7
4Disconnect the
connector for fan motor
(S1).
5Disconnect the
connectors (S21, S35).
6Disconnect the
connectors (S26, S28)
and the connector for
heat exchanger
thermistor (S32).
7Disconnect the
connectors for swing
motor (S6, S8).
Connector
S6 : White
S8 : Red
Step Procedure Points
(R2448)
S1
(R2449)
S21
S35
(R2450)
S32 S28 S26
(R2447)
S8
S6

Removal of Power Supply / Control PCB Si06-762
8Removal Procedure
8Disconnect the
connector for thermal
fuse.
9Disconnect the terminal
strip for power supply
(upper row).
10 Disconnect the earth
terminal.
Step Procedure Points
(R2451)
Terminal Strip Board
with Thermal Fuse
(R2452)
1 : Power Supply
(Blue)
2 : Power Supply
(Brown)
3 : Transmission
Earth Terminal
Green / Yellow
(R2453)

Si06-762 Removal of Power Supply / Control PCB
Removal Procedure 9
11 Release the room
temperature thermistor.
(Unlock the fixing
holder.)
12 Pull the 3 PCB spacers
out of the power supply /
control PCB.
Preferably use long-nose
pliers to easily draw out the
PCB spacers.
13 Remove the power
supply / control PCB.
Step Procedure Points
Room Temperature
Thermistor
Fixing Holder
(R2454)
PCB Spacers (3)
(R2455)
(R2456)

Removal of Piping Fixture Si06-762
10 Removal Procedure
4. Removal of Piping Fixture
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. Detach the piping fixture.
Remove the suction grille.
1Remove the screw and
detach the piping
fixture.
2The figure at right
shows the pipe
connections.
The drain hose and the
drain pan are integrated and
inseparable.
Piping
Fixture
(R2457)
Screw
(R2458)
Drain Hose
Liquid Pipe
(φ6.4)
Gas Pipe
(φ15.9)
(R2459)

Si06-762 Removal of Electrical Box
Removal Procedure 11
5. 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
1. Remove the electrical box.
Remove the electrical box
cover.
1Disconnect the earth
terminal (green / yellow-
striped wire harness).
2Release the room
temperature thermistor.
Disconnect the
connectors and
terminal strip for power
supply, all from the
power supply / control
PCB.
The wire harnesses of the
connectors are tied up with
the clamp.
The room temperature
thermistor is fixed with the
holder.
3Remove the 2 fixing
screws for power
supply cable.
There is no need to remove
the fixture inside the
electrical box.
Earth Terminal
(R2460)
(R2461)
Terminal Strip for
Power Supply
Room Temperature
Thermistor Connectors
Power
Supply
Cable
Screws
(R2462)

Removal of Electrical Box Si06-762
12 Removal Procedure
4Remove the 2 fixing
screws off the electrical
box.
5Pull out the electrical
box toward yourself.
Step Procedure Points
Fixing Screws (2)
(R2463)
(R2464)

Si06-762 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. Detach the fan rotor.
Remove the suction grille,
electrical box and piping
fixture.
1Remove the 5 screws
off the bell mouth and
take it out.
2Remove the nut.
3Pull out the fan rotor
toward yourself.
2. Detach the fan motor. <Attention in the fan motor
installation>
Before you tighten screws, be
sure that the rubber vibration
isolators (front, back) of the fan
motor firmly fit into the both
holes of the installation board
and fan motor cover when you
install a fan motor.
1Remove the 3 screws
off the fan motor cover
and take it out.
2Now take out the fan
motor.
Screws (5)
(R2465)
Bell Mouth
Fan Rotor
Nut
Rubber
Vibration
Isolator
(Front, Back)
(R2466)
Fan Motor
Fan Motor Cover

Removal of Front Panel Si06-762
14 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. Detach the front panel.
Screw locations
The front panel is hooked by
3 claws each on the right
and left. Lift the front panel
slightly first and then pull it
toward yourself.
1Remove the 6 screws
off the front panel, and
detach it.
To remove the right and left
screws, open the horizontal
blades.
Screws
Screws
Screws
Front
Panel
(R2467)
Claw
Claws
(R2468)

Si06-762 Removal of Display PCB
Removal Procedure 15
8. Removal of Display PCB
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 display PCB. Take out the display PCB
from behind the front panel.
Detach the front panel.
1Remove the 4 screws
each from the right and
left air direction plates.
Detach the plates.
2Remove the thermal
insulation.
3The figure at right
shows the display PCB.
4Disconnect the
connectors (S24, S29
and S36) from the
display PCB.
Screws
(R2469)
Screws
Thermal Insulation
Air Direction
Plate
Air Direction
Plate
Display
PCB
(R7276)
S29 S36 S24
(R2472)

Removal of Display PCB Si06-762
16 Removal Procedure
5Undo the 4 claws (2
from the braid and 2
from the cover), and
draw out the display
case.
The display case has the
cover, braid and display
PCB integrated.
6Take the display PCB
out of the display case.
To do this, detach the
insulation from the back
of the display PCB and
undo the 6 claws.
Step Procedure Points
Cover
Display PCB Claws (Cover)
Claws (Braid)
(R7277)
A
Braid
(R2475)
<View from A >
Claws (6)
Display Case
Display PCB
Insulation
(R7278)

Si06-762 Removal of Heat Exchanger
Removal Procedure 17
9. Removal of Heat Exchanger
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. Detach the heat
exchanger.
Detach the front panel.
1Remove the air outlet
guide and fin guard
first, and the piping
fixture. Release the
heat exchanger
thermistor and earth
wire from the ditch of
drain pan.
2Remove the 4 screws
off the heat exchanger,
and take it out.
Air Outlet
Guide
Fin Guard Heat Exchanger
(R2477)
Drain Pan
Earth wire
Heat Exchanger
Thermistor
Piping
Fixture
(R2478)
(R2479)

Revision History
Month / Year Version Revised contents
07 / 2013 Si06-762 First edition