Daikin RKS25EBVMV User manual

REMOVAL

PROCEDURE

SERVICE MANUAL

Outdoor Unit

Inverter

Pair Type

2.5/3.5/4.2 kW Class

Si001267EB

Service Manual

Removal Procedure

Outdoor Unit

zCooling Only zHeat Pump

RKS25EBVMV RXS25EBVMV

RKS35EBVMV RXS35EBVMV

RKS25GVM4 RXS25GVMV

RKS35GVM4 RXS35GVMV

RKS25GVMV

RKS35GVMV

RKS25JVMG

RKS35JVMG

RKD25GVMV

RKD35GVMV

RKD42GVMV

RKD25HVMV

RKD35HVMV

RKD42HVMV

Si001267EB

Removal Procedure 1

Table of Contents

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

2. Fan Motor................................................................................................4

3. Electrical Box ..........................................................................................6

4. PCB.........................................................................................................8

5. Reactor / Partition Plate ..........................................................................9

6. Sound Blankets .....................................................................................10

7. Four Way Valve.....................................................................................11

8. Compressor...........................................................................................13

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

The illustrations are for heat pump models as representative.

Outer Panels Si001267EB

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 screw of

the stop valve cover.

Pull down the stop

valve cover and remove

it.

The stop valve cover is

united with the shield plate.

When reassembling, make

sure to fit the 5 hooks.

Remove the 3 screws

and lift the top panel.

Remove the drip proof

plate.

Remove the 4 screws

and remove the

discharge grille.

The discharge grille has 4

hooks.

6Remove the 8 screws

and remove the front

panel.

The front panel has 4 hooks.

Stop

valve

cover

(R17214)

(R17767)

Discharge

grille

Drip proof plate

Top panel

(R7193)

(R7194)

Front panel

(R7195)

Hook

Si001267EB Outer Panels

Removal Procedure 3

7Remove the 6 screws

on the right side and the

rear side.

Take care not to cut your

finger by the fins of the

outdoor heat exchanger.

8Release the outdoor

temperature thermistor.

9Lift up the guard net

and remove it.

10 Remove the screw of

the right side panel.

When reassembling, make

sure to fit the hooks on the

right and rear side.

11 Lift up the right side

panel and remove it.

Step Procedure Points

(R17219)

Outdoor temperature thermistor

Guard net

(R17220)

Hook

Right side

panel

(R7212)

Fan Motor Si001267EB

4Removal Procedure

2. Fan Motor

Warning Be sure to wait for 10 minutes or more after turning off all power supplies before

disassembling work.

Step Procedure Points

1Remove 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.

2Remove the outdoor

fan.

3Disconnect the

connector [S70].

[S70]: fan motor

4Cut the clamp and

release the fan motor

lead wire from the hook.

D-cut

(R7197)

10 mm

(0.39 inch)

(R18954)

[S70]

(R7199)

Fan motor lead wire

Clamp

(R17217)

Si001267EB Fan Motor

Removal Procedure 5

5Open 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).

6Remove the 4 screws

and remove the fan

motor.

Be sure to remove the lower

screws first. If the top screws

are removed first, the fan

motor may tilt down or fall

and cause injury because its

center of gravity is shifted to

the front.

7Remove the screw and

remove the fan motor

fixing frame.

When reassembling, fit the

lower hooks into the bottom

frame.

Step Procedure Points

(R16464)

(R3249)

Lead wire Outdoor fan

Fan motor

(R7202)

(R17218)

Fan motor fixing frame

Electrical Box Si001267EB

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

1Disconnect the 2

connectors for the

reactor.

2Disconnect the

connector [S30].

[S30]: compressor

3Disconnect the

connector [S40].

[S40]: overload protector

4Disconnect the

connector [S20].

[S20]: electronic expansion

valve coil

5Disconnect the

connector [S80].

[S80]: four way valve coil

The cooling only models

have no harness for [S80].

When reassembling,

connect the connectors in

the following order.

(1) [S80]

(2) [S20]

(3) [S40]

(4) [S30]

(5) reactor

When reassembling, set the

harnesses of the four way

valve coil and electronic

expansion valve coil in front

of the compressor lead wire.

(R17221)

[S30]

Reactor

(R17222)

[S40][S20]

(R7219)

[S80]

Si001267EB Electrical Box

Removal Procedure 7

6Release the discharge

pipe thermistor.

Be careful not to lose the

fixture for the thermistor.

7Cut the clamp. Be careful not to lose the clip

for the thermistor.

8Pull out the outdoor

heat exchanger

thermistor.

9Lift and remove the

electrical box.

Step Procedure Points

(R16457)

Discharge pipe thermistor

(R18789)

Fixture

(R17223)

Clamp

Outdoor heat exchanger

thermistor

(R3264)

Clip

(R16473)

Electrical Box

PCB Si001267EB

8Removal Procedure

4. PCB

Warning Be sure to wait for 10 minutes or more after turning off all power supplies before

disassembling work.

Step Procedure Points

1Remove the 2 screws

and detach the earth /

ground wires.

You can remove the main

PCB when you disconnect

the lead wires on the

terminal board without

removing the electrical box.

2Remove the 4 screws

on the main PCB.

3Unfasten the 3 hooks

on the upper side.

4Lift and pull out the

main PCB.

(R19539)

Screw

Earth / ground

wire

(R16485)

Hook

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