Daikin RKS22MVLT User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Inverter
Pair Type
2.2/2.8/3.6 kW Class
Si001354EA

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only zHeat Pump
RKS22MVLT RXM22NVLT
RKS28MVLT RXM28NVLT
RKS36MVLT RXM36NVLT
RXS22MVLT
RXS28MVLT
RXS36MVLT

Si001354EA
Removal Procedure 1
Table of Contents
1. Outer Panels ...........................................................................................2
2. Outdoor Fan / Fan Motor.........................................................................5
3. Electrical Box ..........................................................................................7
4. PCBs .......................................................................................................9
5. Reactor / Partition Plate ........................................................................13
6. Sound Blankets .....................................................................................14
7. Thermistor ASSY ..................................................................................15
8. Four Way Valve.....................................................................................16
9. Compressor...........................................................................................19
Note: The illustrations may be slightly different depending on the model.
The illustrations are for heat pump models as representative.

Outer Panels Si001354EA
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 4 screws
and remove the top
panel.
Remove the 4 screws
and remove the
discharge grille.
Slide the discharge grille
upward and remove it.
The discharge grille has 6
hooks.
3 Remove the 7 screws
of the front panel.
4
5
Unfasten the 2 right
side hooks.
Unfasten the 3 left side
hooks and remove the
front panel.
When reassembling, fit the
left side of the front panel
first.
Discharge grille
(R18934)
Top panel
(R14278)
(R14283)
Front panel
(R18935)

Si001354EA Outer Panels
Removal Procedure 3
6
7
Remove the screw of
the stop valve cover.
Pull down the stop
valve cover to unfasten
the hooks and remove
it.
The stop valve cover has 3
hooks.
8 Remove the 3 screws
and remove the wire
fixture.
9 Remove the 7 screws
and remove the
connecting wire and the
power supply wire.
Step Procedure Points
Stop valve cover (R18936)
(R18937)
Wire fixture
(R18938)
(R18939)
Connecting
wire
Power supply
wire

Outer Panels Si001354EA
4Removal Procedure
10 Pull out the outdoor
temperature thermistor.
11 Remove the 7 screws
of the right side panel.
12
13
Unfasten the 2 lower
hooks and the upper
hook.
Remove the right side
panel.
When reassembling, insert
the 2 lower hooks and the
upper hook of the back.
Step Procedure Points
(R14300)
Outdoor temperature
thermistor
Right side panel
(R18940)
Hook
(R14303)
(R18941)
Hook

Si001354EA Outdoor Fan / Fan Motor
Removal Procedure 5
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 shield
plate.
2 Disconnect the
connector [S70].
[S70]: fan motor
3 Release the fan motor
lead wire from the hook.
4 Remove the nut of the
outdoor fan.
Nut size: M6
When reassembling, align
the mark of the outdoor
fan with the D-cut section of
the motor shaft.
(R18942)
Shield plate
[S70] (R15680)
(R18943)
Fan motor
lead wire
Hook
Nut
(R18944)
Outdoor fan
10 mm
(0.39 inch)
(R18954)

Outdoor Fan / Fan Motor Si001354EA
6Removal Procedure
5 Remove the screw of
the fan motor fixing
frame.
6
7
Unfasten the 2 hooks at
the bottom.
Remove the fan motor
fixing frame.
When reassembling, fit the 2
lower hooks into the bottom
frame.
8 Open the 2 hooks and
release the fan motor
lead wire.
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.
9 Remove the 4 screws
and remove the fan
motor.
Step Procedure Points
(R18945)
Fan motor fixing frame
Hook (R18946)
(R11835)
(R3249)
Lead wire Outdoor fan
(R19106)
Fan motor

Si001354EA Electrical Box
Removal Procedure 7
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].
The cooling only models
have no harness for [S80].
[S80]: four way valve coil
2 Disconnect the
connector [S20].
[S20]: electronic expansion
valve coil
3 Disconnect the 2
connectors for the
reactor.
When reassembling, you
can connect the 2 harnesses
in either way regardless of
the color.
[S80]
(R17144)
(R12590)
[S20]
(R12586)

Electrical Box Si001354EA
8Removal Procedure
4 Disconnect the relay
connector for the
compressor.
5 Disconnect the
connector [S40].
[S40]: overload protector
6 Disconnect the
connector [S90].
[S90]: thermistors
When reassembling,
connect the connectors in
the following order.
(1) [S90]
(2) [S40]
(3) compressor relay
(4) reactor
(5) [S20]
(6) [S70]
(7) [S80]
7 Lift and remove the
electrical box.
Step Procedure Points
(R19075)
(R19076)
[S40]
[S90]
(R19077)
(R13179)
Electrical box