Daikin Quaternity RXG09HVJU User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
9000/12000/15000 Btu/h Class
Outdoor Unit
Inverter
Pair Type
Si00-979

Service Manual
Removal Procedure
Outdoor Unit
zHeat Pump
RXG09HVJU
RXG12HVJU
RXG15HVJU

Si00-979
Removal Procedure 1
Table of Contents
1. Removal of Outdoor Fan / Fan Motor .....................................................2
2. Removal of Electrical Box .......................................................................6
3. Removal of PCB....................................................................................10
4. Removal of Sound Blankets..................................................................13
5. Removal of Thermistor Assembly .........................................................15
6. Removal of Reactor / Partition Plate .....................................................17
7. Removal of Four Way Valve .................................................................18
8. Removal of Electronic Expansion Valve ...............................................20
9. Removal of Compressor .......................................................................21
Note: The illustrations may be slightly different depending on the model.

Removal of Outdoor Fan / Fan Motor Si00-979
2Removal Procedure
1. Removal of Outdoor Fan / Fan Motor
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1. Removal of the top panel
1Remove the 2 screws
of the top panel.
2. Remove the front panel
1Remove the 7 screws
of the front panel.
There are 5 hooks in
total of right and left.
Lift the front panel and
pull it out toward
yourself.
2Remove the 4 screws
to remove the front
grille.
(R10197)
(R10196)
Front panel
Front grille
(R10198)

Si00-979 Removal of Outdoor Fan / Fan Motor
Removal Procedure 3
3Remove the screw and
remove the stop valve
cover.
3. Removal of the propeller
fan
When assembling, align the
mark of the outdoor fan
and the D cut section of the
motor shaft.
1Remove the fan fixing
nut and remove the
propeller fan.
When assembling the fan
motor, let the zmark go
upper. (The direction of the
lead wire outlet.)
Remove the fan fixing nut
with the 13 mm wrench.
4. Removal of the fan motor
1Disconnect the fan
motor connector [S70]
from PCB.
Step Procedure Points
(R10199)
D cut
(R5833)
mark
(R5834)
mark
mark
Fan fixing nut
13 mm (R5835)
(R10200)
[S70]

Removal of Outdoor Fan / Fan Motor Si00-979
4Removal Procedure
2Detach the lead wire
for fan motor and pass
the lead wire
downward through the
opening.
3Remove the screw of
the fan motor fixing
plate.
4Detach the upper part
of the fan motor fixing
plate.
5Fan motor fixing plate
has the 2 hooks on
lower part.
Step Procedure Points
(R10201)
Lead wire for fan motor
(R10202)
(R5839)
(R5840)

Si00-979 Removal of Outdoor Fan / Fan Motor
Removal Procedure 5
6Release the fixing hook
for lead wire and
detach the lead wire.
When assembling, put the
lead wire through the back
of the motor. (so as not to
be entangled with the
propeller fan)
7Remove the 4 screws
of the fan motor.
8Pull out the rubber
vibration isolators
sideward.
Step Procedure Points
(R10203)
(R3249)
Lead wire Propeller fan

Removal of Electrical Box Si00-979
6Removal Procedure
2. Removal of 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. Disconnect the wire
harnesses of the PCB
Preparation
Remove the front panel
according to "Removal of
Outdoor Fan / Fan Motor".
1Disconnect the
connector for the fan
motor [S70].
2Disconnect the
connector for the four
way valve coil [S80].
3Disconnect the
connector for the
electronic expansion
valve coil [S20].
4Disconnect the
connector for the
thermistor assembly
[S90].
(R14006)
[S70]
[S80]
(R14007)
(R14050)
[S20]
[S90]
(R14009)

Si00-979 Removal of Electrical Box
Removal Procedure 7
5Disconnect the 2
terminals from the
reactor.
6Disconnect the relay
harness for the
compressor.
2. Disconnect the power
supply / connecting wiring
1Remove the 2 screws
of the radiation shield
plate to remove.
Step Procedure Points
(R14053)
Orange
Purple
(R14010)
(R10210)
Radiation shield plate

Removal of Electrical Box Si00-979
8Removal Procedure
2Remove the screw of
the earth / ground wire.
3Disconnect all the
connecting wires.
4 Disconnect the
connectors black
(power supply), white
(power supply), and
red (signal).
Black-power supply
White-power supply
Red-signal
Step Procedure Points
(R18586)
Earth / ground
(R10212)
Black
White Red
(R0147)
Green/Yellow