Daikin RXR35HV2C User manual

REMOVAL

PROCEDURE

SERVICE MANUAL

Outdoor Unit

Inverter

Pair Type

3.5 kW Class

Si00-973

Service Manual

Removal Procedure

Outdoor Unit

zHeat Pump

RXR35HV2C

Si00-973

Removal Procedure 1

Table of Contents

1. Removal of Humidifier Unit .....................................................................2

2. Removal of Heater ASSY / Humidifying Rotor

(Moisture Adsorption Element) / Humidifying Rotor Motor......................5

3. Removal of Damper Motor ......................................................................8

4. Removal of Limit Switch / Humidifying Thermistor..................................9

5. Removal of Fan-valve-duct ASSY / Fan-valve ASSY / Duct ASSY ......12

6. Removal of Hygroscopic Fan Rotor / Hygroscopic Fan Motor ..............14

7. Removal of Panels and Plates ..............................................................15

8. Removal of Electrical Box .....................................................................17

9. Removal of PCB....................................................................................22

10.Removal of Sound Blankets..................................................................27

11.Removal of Outdoor Fan / Fan Motor ...................................................29

12.Removal of Thermistors ........................................................................32

13.Removal of Compressor .......................................................................33

14.Removal of Four Way Valve / Electronic Expansion Valve...................35

Removal of Humidifier Unit Si00-973

2Removal Procedure

1. Removal of Humidifier Unit

Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies

before disassembling work.

Step Procedure Points

1. External appearance

2. Removal of the humidifier

unit

1Remove the 4 screws

and lift up the top panel

to remove.

}

(R10550)

Air outlet

Humidifier unit

(R10551)

Air inlet

(R10552)

Top panel

Si00-973 Removal of Humidifier Unit

Removal Procedure 3

2Remove the screw and

the hose cover.

3Pull out the humidifying

hose.

4The figure shows the

arrangement of the

relay harness.

Be sure to wait 10 minutes

or more after turning off the

power supply before

disconnecting the

connectors.

Step Procedure Points

(R10553)

Hose cover

(R10554)

Humidifying hose

(R9885)

Removal of Humidifier Unit Si00-973

4Removal Procedure

5Disconnect the 4 relay

connectors.

Do not pull the harnesses

from the outdoor unit

strongly so as not to loose

the hook of the mounting

plate.

(See the illustration below

on this page for the

mounting plate.)

6Disconnect the

connector for humidifier

fan motor.

Be sure to wait for 10

minutes or more after

turning off the power supply

before disconnecting the

connectors.

Pull out the connector while

pushing up the hook on the

bottom side.

When lifting up the

humidifier unit, be careful

not to pull the relay

harnesses forcibly.

When reassembling the

humidifier unit, make sure

the mounting plate is

hooked and do not forget to

connect the relay

connectors.

7Remove the 4 screws

of the humidifier unit

and lift it up to remove.

Step Procedure Points

(R9886)

Relay connectors

Humidifier fan motor (R9887)

(R5796)

}

(R10555)

Mounting plate

Humidifier unit

Hook

Si00-973 Removal of Heater ASSY / Humidifying Rotor (Moisture Adsorption Element) / Humidifying Rotor Motor

Removal Procedure 5

2. Removal of Heater ASSY / Humidifying Rotor

(Moisture Adsorption Element) / Humidifying

Rotor Motor

Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies

before disassembling work.

Step Procedure Points

Internal structure of the

humidifier unit

Preparation

Remove the top panel

according to "Removal of

Humidifier Unit".

The humidifying rotor is

located under the heater

ASSY and the duct.

1. Removal of the heater

ASSY

1Remove the 4 screws

of the duct on

adsorption side.

2Detach the harness for

heater from the groove.

(R9889)

Duct (adsorption side)

Damper

motor

Limit switch

Harness ASSY

Humidifying

rotor motor

Fan-valve-duct ASSY Humidifying thermistor

Heater

ASSY

(R9890)

(R9891)

Removal of Heater ASSY / Humidifying Rotor (Moisture Adsorption Element) / Humidifying Rotor Motor Si00-973

6Removal Procedure

3Remove the duct.

4Release the lead wire

for humidifying rotor

motor from the 2

hooks.

5Remove the 2 screws

to remove the heater

ASSY.

Do not disassemble the

heater ASSY into small

parts.

2. Removal of the

humidifying rotor.

1Detach the lead wire

for fan motor from the

groove.

Step Procedure Points

(R9892)

Duct (adsorption side)

(R9893)

(R9894)

(R9898)

Fan motor lead wire

Si00-973 Removal of Heater ASSY / Humidifying Rotor (Moisture Adsorption Element) / Humidifying Rotor Motor

Removal Procedure 7

2Remove the bell mouth

on adsorption side.

3Lift the humidifying

rotor up to remove.

A heat catalyst (black) is

applied on the upper side.

3. Removal of the

humidifying rotor motor

1Disconnect the

connector for the

humidifying rotor

motor.

2Remove the 2 screws

of the humidifying rotor

motor.

Step Procedure Points

(R9899)

Bell mouth

(R9900)

Humidifying rotor

(R9901)

Rotor driving

part

(R9902)

Humidifying rotor

motor

Removal of Damper Motor Si00-973

8Removal Procedure

3. Removal of Damper Motor

Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies

before disassembling work.

Step Procedure Points

1. Removal of the damper

motor

Disconnect the connector

for the humidifying rotor

motor.

1Disconnect the

connector for the

damper motor.

2Remove the 2 screws

and remove the

damper motor.

(R10348)

Harness ASSY

Humidifying thermistor

Damper

motor

(R0232)

(R0233)

Table of contents

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