Daikin RK18NMVJU Manuale utente

REMOVAL

PROCEDURE

SERVICE MANUAL

15000/18000/24000 Btu/h Class

Outdoor Unit

Inverter

Pair Type

Si001555EA

Service Manual

Removal Procedure

Outdoor Unit

zCooling Only zHeat Pump

RK18NMVJU RX18NMVJU

RK24NMVJU RX24NMVJU

RKN24NMVJU RXN18NMVJU

RXN24NMVJU

RXL15QMVJU

Si001555EA

Removal Procedure 1

Table of Contents

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

2. Outdoor Fan / Fan Motor.........................................................................4

3. Electrical Box ..........................................................................................7

4. PCB.......................................................................................................11

5. Thermistor ASSY / Partition Plate .........................................................14

6. Sound Blankets .....................................................................................17

7. Electronic Expansion Valve Coil / Four Way Valve...............................19

8. Compressor...........................................................................................22

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

The illustrations are for heat pump models as representative.

Outer Panels Si001555EA

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 6 screws

and remove the top

panel.

2 Remove the 8 screws

of the front panel.

3 Slide the fan motor

fixing frame to the left

and unfasten the 2

hooks.

Top panel

(R21947)

Front panel

(R21948)

Hook

Fan motor fixing frame

(R21949)

Si001555EA Outer Panels

Removal Procedure 3

Unfasten the 2 hooks

on the right side.

Remove the front panel.

6 Remove the 4 screws

of the discharge grille.

7 Unfasten the 2 hooks

and remove the

discharge grille.

Step Procedure Points

Hook

Front panel

(R21950)

Discharge grille

(R21951)

(R21952)

Outdoor Fan / Fan Motor Si001555EA

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 Remove the drip proof

cover.

2 Remove the 2 screws

of the terminal cover.

Open the terminal cover

and pull down to

unfasten the 2 hooks.

Remove the terminal

cover.

Drip proof cover

(R21953)

Terminal cover

(R21954)

Hook

(R21955)

Si001555EA Outdoor Fan / Fan Motor

Removal Procedure 5

5 Disconnect the

connector [S70].

[S70]: fan motor

6 Pull out the clamp of the

fan motor lead wire (on

the outer side of the

electrical box).

7 Release the fan motor

lead wire from the

groove and unfasten

the 2 hooks.

When reassembling, fit the

fan motor lead wire into the

slit at the back of the fan

motor fixing frame.

Step Procedure Points

[S70]

(R21956)

Top view

Clamp

Fan motor

lead wire

Clamp

(R21957)

Hook Fan motor lead wireGroove

(R21958)

Fan motor fixing frame Slit

(R21959)

Outdoor Fan / Fan Motor Si001555EA

6Removal Procedure

8 Remove the nut and

remove the outdoor fan.

Nut size : M8

9 Remove the 2 screws

and remove the fan

motor fixing frame.

When reassembling, fit the 2

lower hooks into the bottom

frame.

10 Unfasten the 3 hooks

on the fan motor fixing

frame and release the

fan motor lead wire.

11 Remove the 4 screws

and remove the fan

motor.

Step Procedure Points

Outdoor fan

Nut

(R21960)

13 mm

(0.51 inch)

(R18965)

Fan motor fixing frame

(R21961)

Hook (R20916)

Hook

Fan motor lead wire

(R21962)

Fan motor (R21963)

Si001555EA 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

Remove the 7 screws

on the terminal board

and disconnect the

connecting wire and

power supply wire.

Loosen the 2 nuts of the

conduits and remove

the connecting wire and

power supply wire.

3 Remove the 2 screws

and remove the conduit

mounting plate.

When reassembling, fit the 2

hooks of the conduit

mounting plate to the right

side panel.

4 Remove the 2 screws.

Power

supply

wire

Connecting wire

Nut

Conduit

Terminal board

(R21964)

Conduit

mounting

plate

(R21965)

Hook

Right side

panel

(R21966)

(R20921)

Electrical Box Si001555EA

8Removal Procedure

5 Disconnect the

connector [S80] and

pull out the clamp (Hole

No.1).

[S80]: four way valve coil

The cooling only models

have no harness for [S80].

When reassembling,

connect the connectors in

the following order. Be sure

to insert the wiring clamps of

lead wires into the

appropriate holes.

(1) [S90]: Hole No.15, 14,

13, 7, 3

(2) [S40]: Hole No.16, 2

(3) [S20]: Hole No.11

(4) [S80]: Hole No.1

6 Disconnect the

connector [S20] and

pull out the clamp (Hole

No.11).

[S20]: electronic expansion

valve coil

Pull out the clamp (Hole

No.16) and disconnect

the connector [S40].

Pull out the clamp (Hole

No.2).

Step Procedure Points

[S80]

Clamp (R21967)

151617

Hole No. for wiring clamps

135 7 911

2 4 6 8 10 12

(R21996)

[S20]

Clamp

(R21968)

Clamp

[S40]

(R21998)

[S40]: overload protector

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