Daikin Si001554EC User manual

REMOVAL

PROCEDURE

SERVICE MANUAL

Outdoor Unit

Inverter

Pair Type

9000/12000 Btu/h Class

Si001554EC

Service Manual

Removal Procedure

Outdoor Unit

Cooling Only Heat Pump

RK09NMVJU RX09NMVJU

RK12NMVJU RX12NMVJU

RKN09NMVJU RX09QMVJU

RKN12NMVJU RX12QMVJU

RX09RMVJU

RX12RMVJU

RX09RMVJU9

RX12RMVJU9

RXN09NMVJU

RXN12NMVJU

RXL09QMVJU

Si001554EC

Removal Procedure 1

Table of Contents

1. Outer Panels ...........................................................................................2

2. Outdoor Fan / Fan Motor.........................................................................3

3. Electrical Box / PCB ................................................................................5

4. Thermistor ASSY ..................................................................................10

5. Sound Blankets .....................................................................................14

6. Reactor / Electronic Expansion Valve Coil / Partition Plate ..................15

7. Four Way Valve.....................................................................................17

8. Compressor...........................................................................................19

Note: The illustrations may be slightly different depending on the model.

The illustrations are for heat pump models as representative.

Outer Panels Si001554EC

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 3 screws

and remove the top

panel.

Remove the 4 screws

of the front panel.

Unfasten the 2 left side

hooks, and then the 2

right side hooks.

Remove the front panel.

5 Unfasten the 2 hooks

on the top and remove

the discharge grille.

Front panel

Top panel

(R22821)

Hook

(R21605)

Hook

Discharge grille

Front panel

(R21606)

Si001554EC Outdoor Fan / Fan Motor

Removal Procedure 3

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 [S71] and

remove the filament

tape.

[S71]: fan motor

2 Release the fan motor

lead wire from the

groove.

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.

[S71]

Filament tape

(R22822)

Fan motor lead wireGroove (R21608)

Nut Outdoor fan (R21609)

10 mm

(0.39 inch)

(R18954)

Outdoor Fan / Fan Motor Si001554EC

4Removal Procedure

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

(R21611)

Hook (R21610)

Hook

Fan motor lead wire

(R21612)

Fan motor

(R21613)

(R20826)

Si001554EC Electrical Box / PCB

Removal Procedure 5

3. 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

1 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

Cooling only models have no

harness for [S80].

Connector

(R21614)

Earth / ground wire

(R21615)

[S80] (R21616)

Electrical Box / PCB Si001554EC

6Removal Procedure

4 Disconnect the

connector [S20].

[S20]: electronic expansion

valve coil

5 Disconnect the

connector [S40].

[S40]: overload protector

6 Disconnect the

connector [S30].

[S30]: compressor motor

Step Procedure Points

[S20] (R21617)

[S40]

(R21618)

[S30]

(R21619)

Si001554EC Electrical Box / PCB

Removal Procedure 7

7 Disconnect the 2

connectors from the

reactor.

When reassembling, you

can reconnect the 2

connectors for the reactor in

either way regardless of the

color.

8 Disconnect the

connector [S90].

[S90]: thermistors

9 Pull out the clamp from

the bottom.

Step Procedure Points

Reactor Connector (R21620)

[S90] (R21621)

Clamp

(R21622)

Electrical Box / PCB Si001554EC

8Removal Procedure

10 Remove the screw of

the electrical box.

11 Slide the electrical box

to the right and lift up to

remove it.

There are 2 hooks at the

bottom and the top back of

the electrical box.

2. Remove the PCB.

1 Remove earth / ground

screw.

Step Procedure Points

Electrical box

(R21623)

(R21624)

Hook

(R20839)

Earth / ground screw

(R20840)

Table of contents

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