Daikin RKC18QV2S User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
4.0/5.0/6.0/7.1 kW Class
18000/24000/28000 Btu/h Class
Outdoor Unit
Inverter
Pair Type
Si001658EA

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only
RKC18QV2S
RKC24QV2S
RKC28QV2S
RKC50QVM
RKC60QVM
RKC71QVM
RKC50QVM4
RKC60QVM4
RKC71QVM4
RKC50QVMV
RKC60QVMV
RKC71QVMV
zHeat Pump
RHM50HVMV
RHM60HVMV
RHM71HVMV
RHP40HVLT
RHP50HVLT
RXF50QVMA
RXF60QVMA

Si001658EA
Removal Procedure 1
Table of Contents
1. Outer Panels ...........................................................................................2
2. Outdoor Fan / Fan Motor.........................................................................4
3. Electrical Box ..........................................................................................6
4. PCBs .....................................................................................................10
5. Thermistor ASSY ..................................................................................12
6. Partition Plate / Sound Blankets............................................................14
7. Electronic Expansion Valve...................................................................16
8. Four Way Valve.....................................................................................18
9. Compressor...........................................................................................20
Note: The illustrations may be slightly different depending on the model.

Outer Panels Si001658EA
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.
(R23694)
Top panel
(R23695)
Front panel
(R23696)

Si001658EA Outer Panels
Removal Procedure 3
4 Remove the 4 screws
of the discharge grille.
5 Unfasten the 6 hooks
and remove the
discharge grille.
When reassembling, make
sure that the 6 hooks are
securely fastened.
Step Procedure Points
(R23697)
Discharge grille
(R23698)

Outdoor Fan / Fan Motor Si001658EA
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 Cut the clamp and pull
out the sealing material.
2 Disconnect the
connector [S79].
[S79]: fan motor
3 Release the fan motor
lead wire from the 2
slits and from the 4
hooks on the electrical
box.
When reassembling, put the
fan motor lead wire through
the back of the fan motor to
avoid any entanglement with
the outdoor fan.
(R23699)
Sealing material Clamp
(R23700)
[S79]
(R23701)
Slit
Hook
Fan motor lead wire
(R3249)
Lead wire Outdoor fan

Si001658EA 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
6
Remove the screw of
the fan motor fixing
frame.
Unfasten the 2 hooks at
the bottom and remove
the fan motor fixing
frame.
When reassembling, fit the 2
lower hooks into the bottom
frame.
7 Open the 2 hooks and
release the fan motor
lead wire.
8 Remove the 4 screws,
and then the fan motor.
Step Procedure Points
Outdoor fanNut
D-cut
(R23702)
10 mm
(0.39 inch)
(R18954)
Fan motor fixing frame
(R23703)
(R22574)
Hook
Fan motor lead wire
Back view
(R23704)
Fan motor
Front view
(R24357)

Electrical Box Si001658EA
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 Disconnect the
connector [S80] and
release the harness
from the clamp.
The electrical box can be
removed without removing
the fan motor.
[S80]: four way valve
Cooling only models do not
have the connector [S80].
2 Disconnect the
connector [S20] and
release the harness
from the clamp.
[S20]: electronic expansion
valve coil
3 Disconnect the
connector [S40].
[S40]: overload protector
[S80] Clamp
(R23706)
[S20] Clamp
(R23707)
[S40]
(R23708)

Si001658EA Electrical Box
Removal Procedure 7
4 Disconnect the
connector [S90] and cut
the clamp.
[S90]: thermistors
5 Disconnect the relay
connector for the
compressor.
6
7
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.
Step Procedure Points
[S90]
Clamp
(R23709)
Relay connector for compressor (R23710)
Stop valve cover (R23711)
Hook
Hook
(R23712)

Electrical Box Si001658EA
8Removal Procedure
8 Remove the 3 screws,
and then the wire
fixture.
9 Remove the 7 screws
on the terminal strip
and disconnect the
connecting wire and the
power supply wire.
10 Remove the 2 screws
on the right side panel.
Step Procedure Points
(R23713)
Wire fixture
Connecting wire Power supply wire
Terminal strip
(R24514)
Right side panel
(R23715)