Daikin RXZ25NV1B Manual de usuario

REMOVAL

PROCEDURE

SERVICE MANUAL

Outdoor Unit

Inverter

Pair Type

2.5/3.5/5.0 kW Class

Si001362E

Service Manual

Removal Procedure

Outdoor Unit

zHeat Pump

RXZ25NV1B

RXZ35NV1B

RXZ50NV1B

Si001362E

Removal Procedure 1

Table of Contents

1. Humidifier Unit.........................................................................................2

2. Heater Assembly.....................................................................................4

3. Humidifying Rotor Motor .........................................................................6

4. Hygroscopic Fan Motor...........................................................................7

5. Humidifier Fan Assembly / Damper Assembly........................................8

6. Discharge Grille / Suction Grilles ..........................................................10

7. Outer Panels / Outdoor Fan / Fan Motor...............................................11

8. Duct Assembly / Right Side Panel ........................................................14

9. Electrical Box ........................................................................................16

10. PCB......................................................................................................19

11. Reactor / Thermistor Assembly / Partition Plate ..................................21

12. Sound Blankets ....................................................................................24

13. Four Way Valve / Electronic Expansion Valve .....................................25

14. Compressor..........................................................................................28

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

Humidifier Unit Si001362E

2Removal Procedure

1. Humidifier Unit

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

disassembling work.

Step Procedure Points

1. Appearance Features

2. Remove the top panel and

the stop valve cover.

Remove the 4 screws

and remove the top

panel.

Remove the screw of

the stop valve cover.

Slide the stop valve

cover down and remove

it.

(R19564)

Humidifier unit discharge

air outlet (front)

Humidifier unit

air inlet (front)

Humidifier

unit

(R19565)

Gas piping

Suction grille

(adsorption side)

Outdoor

temperature

thermistor

Suction grille

(humidifier side)

Humidifying

hose

Liquid

piping

Top panel

Hook

Stop valve cover

(R19566)

Si001362E Humidifier Unit

Removal Procedure 3

3. Remove the humidifier

unit.

1 Disconnect the relay

connectors of each

harness.

2 Remove the 4 screws

and remove the

humidifier unit.

When reassembling the

humidifier unit, do not forget

to connect the relay

connectors.

When reassembling the

humidifier unit, make sure to

connect the duct assembly

and the lower damper case

inside the humidifier unit.

Step Procedure Points

Relay connector

(R19568)

(R19569)

Humidifier unit

Duct assembly

(R19570)

Relay connector

Lower damper case

Heater Assembly Si001362E

4Removal Procedure

2. Heater Assembly

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

disassembling work.

Step Procedure Points

1. Inner structure of the

humidifier unit

2. Remove the heater

assembly.

Release the harnesses

from the hook.

Remove the 3 screws

and remove the duct

(adsorption side).

3 Release the harnesses

from the 3 hooks.

When reassembling, these

harnesses must be fit in the

following hooks.

• Humidifying rotor motor

•Damper motor

•Limit switch

•Humidifying thermistor

→Hook (a) and hook (b)

•Hygroscopic fan motor

→Hook (b) and hook (c)

•Heater

→ Hook (c) only

Hook

Duct

(adsorption side)

Hygroscopic fan

motor harness

Heater

assembly

Humidifier

fan motor

Humidifying

rotor motor

Damper

motor

Humidifying

thermistor

(R19571)

Hook

Duct

(adsorption side)

(R19572)

Hook (a)

Hook (c) Hook (b)

(R19573)

Si001362E Heater Assembly

Removal Procedure 5

4 Remove the 2 screws

and remove the heater

assembly.

5 Unfasten the projection

of the heater assembly

from the slit on the

support plate.

When reassembling, insert

the projection of the heater

assembly to the slit on the

support plate.

Step Procedure Points

Heater assembly

(R19574)

Support plate

(R19575)

Humidifying Rotor Motor Si001362E

6Removal Procedure

3. Humidifying Rotor 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 humidifying

rotor.

1Release the

hygroscopic fan motor

lead wire from the hook.

2Remove the bell mouth.

3Remove the

humidifying rotor.

2. Remove the humidifying

rotor motor.

Disconnect the

humidifying rotor motor

lead wire.

Remove the 2 screws

and remove the

humidifying rotor motor.

Hook Hygroscopic fan motor

lead wire (R19576)

Bell mouth

(R19577)

(R19578)

Humidifying

rotor

(R19579)

Humidifying

rotor motor

Humidifying rotor

motor lead wire

Si001362E Hygroscopic Fan Motor

Removal Procedure 7

4. Hygroscopic 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 hygroscopic

fan.

Nut size: M6

When reassembling, align

the mark of the fan with

the D-cut section of the

motor shaft.

1 Remove the nut and

remove the hygroscopic

fan.

2. Remove the hygroscopic

fan motor.

1 Remove the 3 screws

and remove the

hygroscopic fan motor

cover.

2 Remove the

hygroscopic fan motor.

Nut

(R19580)

Hygroscopic fan 10 mm

(0.39 inch)

(R18954)

(R19581)

Hygroscopic fan motor cover

(R19582)

Hygroscopis fan motor

Humidifier Fan Assembly / Damper Assembly Si001362E

8Removal Procedure

5. Humidifier Fan Assembly / Damper Assembly

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.

2Unfasten the 2 hooks

while bending the right

side panel.

3Remove the humidifier

fan assembly (front)

with the damper

assembly (back)

attached.

(R19583)

Hook

(R19584)

(R19585)

Humidifier fan assembly (front)

with damper assembly (back)

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