Daikin RXL12QMVJU User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Inverter
Pair Type
12000 Btu/h Class
Si001655E

Service Manual
Removal Procedure
Outdoor Unit
zHeat Pump
RXL12QMVJU

Si001655E
Removal Procedure 1
Table of Contents
1. Outer Panels ...........................................................................................2
2. Outdoor Fan / Fan Motor.........................................................................4
3. Drain Pan Heater (Option) ......................................................................6
4. Electrical Box / PCB ................................................................................8
5. Thermistor ASSY ..................................................................................12
6. Sound Blankets / Partition Plate............................................................16
7. Electronic Expansion Valve Coil / Four Way Valve...............................18
8. Compressor...........................................................................................21

Outer Panels Si001655E
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
2
Remove the 3 screws
and remove the top
panel.
Remove the 4 screws
of the front panel.
3
4
Unfasten the 3 left side
hooks, and then the 2
right side hooks.
Remove the front panel.
When reassembling, make
sure that the 5 hooks are
securely fastened.
5 Remove the 4 screws.
Top panel
Front panel
(R22821)
Hook
Hook
(R20379)
(R20380)

Si001655E Outer Panels
Removal Procedure 3
6 Unfasten the 2 hooks
on the top and remove
the discharge grille.
Step Procedure Points
Hook
Discharge
grille
(R20381)

Outdoor Fan / Fan Motor Si001655E
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 Disconnect the
connector [S70] and
remove the filament
tape.
[S70]: fan motor
2 Release the fan motor
lead wire from the
groove.
When reassembling, put the
fan motor lead wire through
the back of the fan motor so
as not to be entangled with
the outdoor fan.
3
4
Remove the nut of the
outdoor fan.
Remove the outdoor
fan.
Nut size: M6
Align the mark of the
outdoor fan with the D-cut
section of the motor shaft
when reassembling.
Filament tape [S70]
(R20382)
Groove Fan motor lead wire (R20383)
Lead wire Outdoor fan
(R3249)
D-cut
Outdoor fan
Nut
(R20384)
10 mm
(0.39 inch)
(R18954)

Si001655E Outdoor Fan / Fan Motor
Removal Procedure 5
5 Remove the 2 screws
and remove the fan
motor fixing frame.
When reassembling, fit the 2
lower hooks into the bottom
frame.
6 Open the 3 hooks and
release the fan motor
lead wire.
7 Remove the 3 screws
from the fan motor.
8 Remove the fan motor.
Step Procedure Points
Fan motor fixing frame
(R20385)
Hook (R21610)
Hook
Fan motor lead wire
(R21612)
Fan motor
(R21613)
(R20826)

Drain Pan Heater (Option) Si001655E
6Removal Procedure
3. Drain Pan Heater (Option)
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 2
connectors from the
terminal board.
1: black, back
2: white, back
2 Remove the screw from
the partition plate.
3 Remove the 3 screws.
White
Black
(R20386)
Partition plate
(R20387)
(R20388)

Si001655E Drain Pan Heater (Option)
Removal Procedure 7
4 Lift the outdoor heat
exchanger slightly
upward and pull the
drain pan heater
forward to remove it.
Be careful not to get cut by
heat exchanger fins.
Step Procedure Points
Outdoor heat exchanger
(R20389)
Drain pan heater
(R20390)

Electrical Box / PCB Si001655E
8Removal Procedure
4. Electrical Box / PCB
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 electrical
box.
1: black, front
2: white, front
3: red, front
When reassembling, wind
the earth / ground wire
around other wires and fix
them with a clamp.
Make sure the wires do not
touch the four way valve.
1 Cut the clamp and
disconnect the 3
connectors from the
terminal board.
2 Remove the screw and
detach the earth /
ground wire.
3 Disconnect the
connector [S80].
[S80]: four way valve coil
Connector
Clamp
(R20391)
Four way valve
Earth / ground wire (R20393)
Earth / ground wire
(R20392)
[S80]
(R20394)