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

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.

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

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.

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.

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

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