Daikin 2AMX40G3V1B Manual de usuario

REMOVAL

PROCEDURE

SERVICE MANUAL

4.0/5.0 kW Class

Outdoor Unit

Inverter

Multi Type

Si121295

Service Manual

Removal Procedure

Outdoor Unit

zHeat Pump

2AMX40G3V1B

2AMX50G3V1B

2MXS40H3V1B

2MXS50H3V1B

Si121295

Removal Procedure 1

Table of Contents

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

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

3. Electrical Box ..........................................................................................5

4. PCB.........................................................................................................9

5. Sound Blankets .....................................................................................12

6. Thermistors ...........................................................................................14

7. Four Way Valve / Outdoor Electronic Expansion Valves ......................16

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

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

Outer Panels Si121295

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

1Remove the 2 screws

and remove the top

panel.

The front panel has 4 hooks.

2Remove the 8 screws

and remove the front

panel.

3Remove the 4 screws

and remove the

discharge grille.

4Remove the 2 screws

and remove the stop

valve cover.

When reassembling, make

sure to fit the 4 hooks.

(R18653)

Top panel

Hook

Discharge grille Front panel

Hook

(R12767)

When reassembling, make

sure to fit the 4 hooks.

(R7699)

Stop

valve

cover

(R7701)

Si121295 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

1Remove the nut and

remove the outdoor fan.

Nut size: M6

When reassembling, align

the mark of the outdoor

fan with the D-cut section of

the motor shaft.

2Disconnect the

connector [S70]. [S70]: fan motor

3Release the fan motor

lead wire.

4Remove the screw and

remove the fan motor

fixing frame.

When reassembling, fit the

lower 2 hooks into the

bottom frame.

(R18756)

Nut

10 mm

(R17216)

[S70]

(R7621)

(R7579)

(R7623)

Fan motor

fixing frame

(R18757)

Outdoor Fan / Fan Motor Si121295

4Removal Procedure

5Turn the fan motor

fixing frame backward

and open the 2 hooks to

release the fan motor

lead wire.

6Remove the 4 screws

and remove the fan

motor.

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.

Step Procedure Points

(R7626)

(R18758)

Screw

Lead wire Outdoor fan

(R12215)

Si121295 Electrical Box

Removal Procedure 5

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

connecting wires.

When reassembling, fasten

the wires with screws on the

terminal board.

1Remove the 2 screws

of earth wires.

Remove the 2 screws

and remove the wire

fixture.

Then remove all the

screws to disconnect

the power supply

cables and the

connecting wires.

2. Remove the electrical

box.

1Release the outdoor

temperature thermistor.

2Lift up the guard net

and remove it.

3Disconnect the

connector [S70].

[S70]: fan motor

44P

Room A Room B

Power supply

(R18561)

Screw of

earth wire

Wire

fixture

(R7208)

Outdoor temperature thermistor

Guard net

(R7209)

[S70]

(R12529)

Electrical Box Si121295

6Removal Procedure

4Release the fan motor

lead wire.

5Disconnect the

connectors [S91] [S92].

[S91]: gas pipe thermistor

(white)

[S92]: liquid pipe thermistor

(red)

6Disconnect the

connector [S40].

[S40]: overload protector

7Disconnect the

connectors [S20] [S21]

[S80].

[S20]: outdoor electronic

expansion valve coil for

room A (white)

[S21]: outdoor electronic

expansion valve coil for

room B (red)

[S80]: four way valve coil

Step Procedure Points

(R7579)

[S92] [S91]

(R12530)

[S40]

(R12531)

[S20] [S21] [S80]

(R12532)

Si121295 Electrical Box

Removal Procedure 7

8Disconnect the relay

connector for the

compressor.

9Disconnect the 2

connectors for the

reactor.

10 Release the discharge

pipe thermistor.

Meet the edge of the

thermistor and the fixture.

Be careful not to lose the

fixture for the thermistor.

11 Disconnect the

connector [S90].

[S90]: thermistors (outdoor

temperature, outdoor

heat exchanger,

discharge pipe)

Step Procedure Points

(R12533)

(R12534)

Discharge pipe thermistor

(R12535)

[S90]

(R7587)

Electrical Box Si121295

8Removal Procedure

12 Detach the clamp for

the thermistors from the

electrical box.

13 Remove the screw on

the right side of the

electrical box.

14 Loosen the screw at the

front of the electrical

box.

15 Lift and remove the

electrical box.

Step Procedure Points

Clamp

(R12771)

(R12536)

(R7590)

(R12537)

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