Daikin RXM09VVJU User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Inverter
Pair Type
9000/12000 Btu/h Class
Si002154E

Service Manual
Removal Procedure
Outdoor Unit
Heat Pump
RXM09VVJU
RXM12VVJU

Si002154E
Removal Procedure 1
Table of Contents
1. Outer Panels ...........................................................................................2
2. Outdoor Fan / Fan Motor.........................................................................4
3. Electrical Box ..........................................................................................6
4. PCBs .....................................................................................................12
5. Thermistors ...........................................................................................14
6. Partition Plate / Sound Insulations ........................................................16
7. Electronic Expansion Valve / Four Way Valve......................................18
8. Compressor...........................................................................................21
Note: The illustrations may be slightly different depending on the model.

Outer Panels Si002154E
2Removal Procedure
1. Outer Panels
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 4 screws,
and then the top panel.
2 Remove the 7 screws
of the front panel.
3 Unfasten the 2 hooks
on the right side first,
then unfasten the 3
hooks on the left side
and remove the front
panel.
When reassembling, make
sure that the 5 hooks are
securely fastened.
(R26001)
Top panel
(R26002)
Front panel
(R26003)

Si002154E Outer Panels
Removal Procedure 3
4 Remove the 4 screws
of the discharge grille.
5 Unfasten the 2 hooks
and remove the
discharge grille.
When reassembling, make
sure that the 2 hooks are
securely fastened.
Step Procedure Points
(R26004)
Discharge grille
(R26005)

Outdoor Fan / Fan Motor Si002154E
4Removal Procedure
2. Outdoor Fan / Fan Motor
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 screw,
then slide the shield
plate to the right to
detach the 2 hooks and
remove it.
When reassembling, slide
the shield plate to the left to
make sure the 2 hooks are
securely fastened.
2 Disconnect the
connector [S70].
[S70]: fan motor
3 Release the fan motor
lead wire from the 7
hooks and from the slit
on the electrical box
(R26006)
Shield plate
(R26007)
Hook
(R26008)
[S70]
(R26009)
Hook
Slit Fan motor lead wire

Si002154E Outdoor Fan / Fan Motor
Removal Procedure 5
4 Remove the nut, and
then the outdoor fan.
Nut size: M6
When reassembling, align
the mark of the fan rotor
with the D-cut section of the
motor shaft.
5 Open the 2 hooks and
release the fan motor
lead wire.
When reassembling, make
sure that the 2 hooks are
securely fastened.
6 Remove the 4 screws,
and then the fan motor.
When reassembling, put the
fan motor lead wire through
the back of the fan motor to
avoid any entanglement with
the outdoor fan.
Step Procedure Points
(R26010)
Outdoor fanNut
D-cut
10 mm
(0.39 inch)
(R18954)
Hook
Hook
(R26011)
Fan motor
(R26012)
(R3249)
Lead wire Outdoor fan

Electrical Box Si002154E
6Removal Procedure
3. Electrical Box
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 screw,
then slide the shield
plate to the right to
detach the 2 hooks and
remove it.
When reassembling, slide
the shield plate to the left to
make sure the 2 hooks are
securely fastened.
2 Disconnect the
connector [S70].
[S70]: fan motor
3 Release the fan motor
lead wire from the 7
hooks and from the slit
on the electrical box
(R26006)
Shield plate
(R26007)
Hook
(R26008)
[S70]
(R26009)
Hook
Slit Fan motor lead wire

Si002154E Electrical Box
Removal Procedure 7
4 Disconnect the
connectors [S20] and
[S80].
When reassembling, make
sure to pass the four way
valve harness inside the
overload protector and high
pressure switch connector.
[S20]: electronic expansion
valve coil
[S80]: four way valve
5 Disconnect the
connector [S40] and
detach the snap band.
[S40]: overload protector and
high pressure switch
6 Disconnect the
connectors [S90] and
[S97].
[S90]: thermistors
[S97]: liquid pipe thermistor
Step Procedure Points
[S80][S20]
(R26013)
(R26014)
Overload protector and high
pressure switch connector
Four way valve harness
[S40]
Snap band (R26015)
[S90] [S97]
(R26016)

Electrical Box Si002154E
8Removal Procedure
7 Disconnect the relay
connector for the
compressor.
8
9
Remove the screw of
the stop valve cover.
Slide the stop valve
cover downward and
remove it.
When reassembling, make
sure that the 4 hooks are
securely fastened.
10 Remove the 3 screws.
Step Procedure Points
Relay connector for compressor
(R26017)
Stop valve cover (R26018)
Hook
Hook
(R26019)
(R26020)