Daikin RXR28EV1B9 Bedienungsanleitung
REMOVAL
PROCEDURE
SERVICE MANUAL
2.8/4.2/5.0 kW Class
Outdoor Unit
Inverter
Pair Type
Si00-777
Service Manual
Removal Procedure
Outdoor Unit
zHeat Pump
RXR28EV1B9
RXR42EV1B9
RXR50EV1B9
RXR28FVLT
RXR50FVLT
Si00-777
Removal Procedure 1
Table of Contents
1. Removal of Humidifier Unit .....................................................................2
2. Removal of Heater Assembly /
Humidifying Rotor / Humidifying Rotor Motor..........................................5
3. Removal of Humidifying Fan Assembly ..................................................9
4. Removal of Hygroscopic Fan Motor......................................................12
5. Removal of Outdoor Fan / Fan Motor ...................................................13
6. Removal of Humidifying Duct................................................................17
7. Removal of Electrical Box .....................................................................18
8. Removal of PCB....................................................................................22
9. Removal of Sound Blankets..................................................................25
10.Removal of Thermistor Assembly .........................................................27
11.Removal of Reactor / Partition Plate .....................................................29
12.Removal of Four Way Valve .................................................................30
13.Removal of Electronic Expansion Valve ...............................................32
14.Removal of Compressor .......................................................................33
Note: The illustrations may be slightly different depending on the model.
Removal of Humidifier Unit Si00-777
2Removal Procedure
1. Removal of Humidifier Unit
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1. External appearance
2. Remove the top panel.
1Remove the 4 screws
and remove the top
panel.
Humidifier unit air inlet (1)
Humidifier
unit
Humidifier
unit air
outlet
(R13980)
(R13981)
Humidifier unit air inlet (2)
Outdoor
temperature
thermistor
(R13982)
Top panel
Si00-777 Removal of Humidifier Unit
Removal Procedure 3
3. Remove the humidifier
unit.
Be sure to wait for 10
minutes or more after
turning off the power supply
before disconnecting the
connectors.
1The figure shows the
arrangement of the
relay harnesses.
2Disconnect the 5 relay
connectors.
3Disconnect the
connector for the
humidifier fan motor.
Pull out the connector while
pushing up the hook on the
bottom side.
Step Procedure Points
(R5791)
(R5792)
(R13983)
Humidifier fan motor
<From the back side>
(R5796)
Removal of Humidifier Unit Si00-777
4Removal Procedure
4Remove the 4 screws
of the humidifier unit
and lift it up to remove.
5The figure shows the
positions of the
humidifying duct and
the relay connectors.
When installing the
humidifier unit, do not forget
to connect the relay
connectors.
Step Procedure Points
(R13984)
Humidifier unit
Relay
connector
Humidifying
duct
(R13985)
Si00-777 Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor
Removal Procedure 5
2. Removal of Heater Assembly / Humidifying Rotor /
Humidifying Rotor Motor
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1. Inside structure of the
humidifier unit
Preparation
Remove the top panel
according to "Removal of
Humidifier Unit".
2. Remove the heater
assembly.
1Remove the 4 screws
of the duct on
adsorption side.
2Release the lead wire
for the humidifying
rotor motor from the
hooks.
Duct
(adsorption side)
Heater
assembly
Humidifier
fan motor
Damper
motor
Humidifying
rotor motor
(R13986)
(R13987)
(R5799)
Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor Si00-777
6Removal Procedure
3Remove the 2 screws
and remove the heater
assembly.
The heater assembly should
be replaced as an assembly
set. (Disassembling of the
assembly may cause
malfunction.)
4Unfasten the hook.
5Inside of the heater
assembly.
Heater and thermal fuse
should be replaced as the
heater assembly.
6Loosen the 4 screws of
the thermal protector.
The thermal protector is
removable. Remove it
before the lead wire.
Step Procedure Points
(R5800)
Hook
(R5801)
Heater
Thermal fuse
(R5802)
Thermal protector
(R5803)
Si00-777 Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor
Removal Procedure 7
7Inside structure of the
heater assembly.
3. Remove the humidifying
rotor.
1Release the fan motor
lead wire from the
hooks.
2Remove the bell mouth
on adsorption side.
Step Procedure Points
Heater assembly
(R5804)
Fan motor lead wire
(R5805)
Bell mouth
(R13988)
Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor Si00-777
8Removal Procedure
3Lift the humidifying
rotor up to remove.
A heat catalyst (black) is
applied on the upper side.
4. Remove the humidifying
rotor motor.
1The figure shows the
connector for the
humidifying rotor
motor.
2Remove the 2 screws
and remove the
humidifying rotor
motor.
Step Procedure Points
Humidifying rotor
(Moisture adsorption
element)
(R13989)
(R5808)
Humidifying rotor
motor
Rotor driving part
(R5809)
Andere Handbücher für RXR28EV1B9
1
Dieses Handbuch passt für folgende Modelle
4
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