Daikin RKS42G2V1B, RXG50KV2C, RXL25G2V1B, RKS42J2V1B, RXG50JV2C Service Manual

...
REMOVAL
PROCEDURE
Si001070
SERVICE MANUAL
2.5/4.2/4.6/5.0 kW Class
Outdoor Unit
Inverter
Pair Type
Outdoor Unit
zCooling Only zHeat Pump
RKS42G2V1B RXG50JV2C
RXG50KV2C
RKS42J2V1B
RXL25G2V1B RXL25G3V1B
RXS42G2V1B
RXS42J2V1B
RXS46JV2C
ARXS42G2V1B
Si001070

Table of Contents

1. Removal of Outer Panels........................................................................2
2. Removal of Electrical Box .......................................................................4
3. Removal of PCB......................................................................................9
4. Removal of Partition Plate / Sound Blankets ........................................14
5. Removal of Outdoor Fan / Fan Motor ...................................................16
6. Removal of Thermistors........................................................................20
7. Removal of Drain Pan Heater ASSY (Pattern 1)...................................21
8. Removal of Drain Pan Heater ASSY (Pattern 2)...................................23
9. Removal of Four Way Valve / Electronic Expansion Valve...................26
10.Removal of Compressor .......................................................................29
Note:
The illustrations may be slightly different depending on the model.
The illustrations are for heat pump models as representative.
Removal Procedure 1
Removal of Outer Panels Si001070

1. Removal of Outer Panels

Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step
1. Features
Procedure Points
Illustrations are slightly
+
different depending on the model.
DAIKIN
INVERTER
(R7186)
Some models do not have guard nets.
2. Remove the panels.
1
Remove the screw and remove the drain pan heater cover.
Drain pan heater cover
Guard net
(R18392)
(R9329)
Some models do not have a drain pan heater cover.
2 Removal Procedure
Si001070 Removal of Outer Panels
Step
2
Remove the 2 screws to remove the top panel, and 7 screws to remove the front panel.
3
Remove the 4 screws and remove the discharge grille.
Hooks
Procedure Points
Top panel
Discharge grille
Front panel
Hooks
(R12305)
The front panel has 4 hooks.
When reassembling, make sure to fit the 4 hooks.
4
Remove the screw and remove the stop valve cover.
(R9364)
Stop valve cover
(R8139)
Shield plate
The stop valve cover is united with the shield plate.
When reassembling, make sure to fit the 5 hooks.
(R12213)
Removal Procedure 3
Removal of Electrical Box Si001070

2. Removal of Electrical Box

Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step
1. Disconnect the connecting wires.
1
Remove the 3 screws to remove the wiring fixture. Then remove the all screws to disconnect the power supply cables and the connecting wires.
Connecting wire
Procedure Points
When reassembling, fasten the wires with screws on the
Terminal board
Power supply cable
terminal board.
2. Remove the electrical box.
1
Release the outdoor temperature thermistor.
2
Lift up the guard net and remove it.
Wiring fixture
Outdoor temperature thermistor
(R12192)
(R12193)
Guard net
(R8143)
4 Removal Procedure
Si001070 Removal of Electrical Box
Step
3
Remove the 7 screws, and remove the right side panel.
4
Remove the screw of the terminal board.
Procedure Points
Right side panel
(R9365)
Terminal strip
5
Disconnect the connectors of the drain pan heater.
6
Cut the clamp.
(R9366)
(R9367)
Some models do not have a drain pan heater.
(R9368)
Removal Procedure 5
Removal of Electrical Box Si001070
Step
7
Disconnect the connector for the fan motor [S70].
8
Disconnect the connector for the overload protector [S40].
Procedure Points
For removal procedure of the
[S70]
fan motor lead wire, refer to “Removal of Outdoor Fan / Fan Motor”.
(R0254)
[S40]
9
Disconnect the connector for the electronic expansion valve coil [S20].
10
Disconnect the connector for the four way valve coil [S80].
(R0255)
[S20]
(R0256)
[S80]
(R0257)
6 Removal Procedure
Si001070 Removal of Electrical Box
Step
11
Disconnect the connector for the thermistors [S90].
12
Disconnect the relay connector for the compressor.
Procedure Points
[S90]
(R0258)
13
Disconnect the 2 connectors for the reactor.
(R0259)
(R0260)
Removal Procedure 7
Removal of Electrical Box Si001070
Step
14
Release the discharge pipe thermistor.
15
Detach the clamp for the thermistors from the electrical box.
Procedure Points
Be careful not to lose the clip for the thermistor.
Clip
Discharge pipe thermistor
(R12197)
(R12279)
16
Remove the screw in front of the electrical box.
17
Lift and remove the electrical box.
(R12196)
(R0262)
(R0263)
(R0264)
8 Removal Procedure
Si001070 Removal of PCB

3. Removal of PCB

Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step
1
Remove the screw and remove the electrical box cover.
Procedure Points
Preparation
Electrical box cover
Remove the panels according to the “Removal of Outer Panels”.
Remove the electrical box according to the “Removal of Electrical Box”.
(R12274)
2
Detach the insulation sheet.
3
Remove the 2 screws of the earth terminals.
Insulation sheet
(R8156)
Earth terminals
(R8157)
The trimmed part goes front.
(R8158)
Removal Procedure 9
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