Daikin RK15JEVM User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Inverter
Pair Type
1.5/2.0/2.5/3.5 kW Class
9000/12000 Btu/h Class
Si001073

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only zHeat Pump
RK15JEVM RX20JV1B
RK20JEVM RX25JV1B
RK25JEVM RX35JV1B
RK35JEVM
RX25JEVM
RKN09JEVJU RX35JEVM
RKN12JEVJU
RXN09JEVJU
RKN25JEVM RXN12JEVJU
RKN35JEVM
RXN25JEV1B
RKS09JEVJU RXN35JEV1B
RKS12JEVJU
RXS09JEVJU
RXS12JEVJU
RXP35JV2C
ARX20JV1B
ARX25JV1B
ARX35JV1B

Si001073
Removal Procedure 1
Table of Contents
1. Removal of Outer Panels (Pattern 1) ......................................................2
2. Removal of Outer Panels (Pattern 2) ......................................................4
3. Removal of Outdoor Fan / Fan Motor .....................................................8
4. Removal of Electrical Box / PCBs .........................................................10
5. Removal of Sound Blankets..................................................................21
6. Removal of Electronic Expansion Valve ASSY.....................................23
7. Removal of Four Way Valve .................................................................24
8. Removal of Compressor .......................................................................26
Note: The illustrations may be slightly different depending on the model.
The illustrations are for heat pump models as representative.

Removal of Outer Panels (Pattern 1) Si001073
2Removal Procedure
1. Removal of Outer Panels (Pattern 1)
Procedure 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
Take care not to cut your
finger by the fins of the
outdoor heat exchanger.
2. Remove the panels.
The stop valve cover is
united with the shield plate.
When reassembling, make
sure to fit the 3 hooks.
1Remove the screw of
the stop valve cover.
Pull down the stop
valve cover and remove
it.
(R10742)
(R14768)
(R16329)
Stop valve
cover
(R16330)
Shield plate
Hook

Si001073 Removal of Outer Panels (Pattern 1)
Removal Procedure 3
2Remove the 3 screws
(right: 1 screw, left: 2
screws) and remove the
top panel.
3Remove the 6 screws
of the front panel.
4Lift up the left side and
unfasten the hooks.
5Unfasten the right side
hooks and remove the
front panel.
6The discharge grille has
2 projections to prevent
its rotation. Press the
projection from the rear
side and rotate the
discharge grille to
remove it.
Step Procedure Points
Top panel
Front panel (R16331)
(R17304)
(R17306)
(R17307)
Projection (rear side)
Discharge grille

Removal of Outer Panels (Pattern 2) Si001073
4Removal Procedure
2. Removal of Outer Panels (Pattern 2)
Procedure 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
Take care not to cut your
finger by the fins of the
outdoor heat exchanger.
2. Remove the panels.
The stop valve cover is
united with the shield plate.
When reassembling, make
sure to fit the 3 hooks.
1Remove the screw of
the stop valve cover.
Pull down the stop
valve cover and remove
it.
(R10707)
(R14768)
(R10709)
Stop valve
cover
(R14606)
Shield plate
Hook

Si001073 Removal of Outer Panels (Pattern 2)
Removal Procedure 5
2Remove the 3 screws
(right: 1 screw, left: 2
screws) and remove the
top panel.
3Remove the 5 screws
of the front panel.
4Lift up the left side and
unfasten the hooks.
5Unfasten the right side
hooks and remove the
front panel.
6
7
Remove the 4 screws
of the discharge grille.
Unfasten the 6 hooks
and remove the
discharge grille.
Step Procedure Points
Top panel
Front panel (R14486)
(R14488)
(R14487)
(R14489)
Discharge grille

Removal of Outer Panels (Pattern 2) Si001073
6Removal Procedure
3. Remove the shield plate
and the conduit (The U.S.
models only).
1Remove the 2 screws.
2Remove the shield
plate.
3Remove the 2 screws.
Step Procedure Points
(R11749)
(R11750)
Shield plate
(R11751)

Si001073 Removal of Outer Panels (Pattern 2)
Removal Procedure 7
4Remove the conduit.
5Remove the conduit
mounting plate.
Step Procedure Points
Conduit
(R11752)
Conduit
mounting
plate
(R11753)

Removal of Outdoor Fan / Fan Motor Si001073
8Removal Procedure
3. Removal of Outdoor Fan / Fan 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. Remove the outdoor fan. Preparation
Remove the panels
according to the “Removal
of Outer Panels”.
Nut size: M6
1
2
Remove the nut of the
outdoor fan.
Remove the outdoor
fan.
When reassembling, align
the mark of the outdoor
fan with the D-cut section of
the motor shaft.
2. Remove the fan motor.
1Disconnect the
connector for the fan
motor [S70].
2Release the fan motor
lead wire from the
hooks.
3Remove the screw and
remove the fan motor
fixing frame.
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.
(R17341)
Shaft
D-cut
Nut
Outdoor
fan
10 mm
(R12236)
(R17338)
Hook
Fan motor lead wire
[S70]
(R17284)
Fan motor fixing frame
(R3249)
Lead wire Outdoor fan

Si001073 Removal of Outdoor Fan / Fan Motor
Removal Procedure 9
4Release the fan motor
lead wire from the
hooks.
5Remove the 3 screws
to remove the fan
motor.
Step Procedure Points
(R14778)
(R14779)
Fan motor

Removal of Electrical Box / PCBs Si001073
10 Removal Procedure
4. Removal of Electrical Box / PCBs
Procedure 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 right side
panel.
Preparation
Remove the panels
according to the “Removal
of Outer Panels”.
1Release the outdoor
temperature thermistor.
2Remove the screws
and release the
connecting wire and the
power supply wire.
3Remove the 3 screws
and remove the wire
clamp.
4Remove the screw on
the rear side of the right
side panel.
(R17310)
Outdoor temperature
thermistor
(R17285)
Connecting wire Power supply
wire
(R14783)
Wire
clamp
(R17308)
Right
side
panel

Si001073 Removal of Electrical Box / PCBs
Removal Procedure 11
5Remove the 4 screws
on the right side panel.
6Unfasten the hook on
the rear side.
When reassembling, make
sure to fit the hook.
7Unfasten the hook
above the electrical
box.
8Unfasten the hook, and
remove the right side
panel.
Step Procedure Points
(R14785)
Hook
(R14786)
(R14787)
(R14788)
Right
side
panel
Hook

Removal of Electrical Box / PCBs Si001073
12 Removal Procedure
2. Remove the thermistors. Pay attention so as not to
lose the fixture for
thermistor.
When reassembling, do not
insert the thermistor up to
the dent of fixture.
1Release the discharge
pipe thermistor.
2Release the outdoor
heat exchanger
thermistor.
3Cut the clamp.
Step Procedure Points
Discharge pipe thermistor
(R14789)
Dent
Fixture
(R11740)
(R14790)
Outdoor heat
exchanger
thermistor
(R14792)

Si001073 Removal of Electrical Box / PCBs
Removal Procedure 13
4Lift the hook with a flat
screwdriver, and
remove the electronic
components mounting
plate.
5Release the harnesses.
6Disconnect the
connector for the
thermistors [S90].
[S90]: outdoor temperature
thermistor, outdoor heat
exchanger thermistor,
discharge pipe
thermistor
7Remove the thermistor
ASSY.
Step Procedure Points
Electronic components mounting plate
(R14795)
(R14796)
[S90]
(R14797)
(R14798)

Removal of Electrical Box / PCBs Si001073
14 Removal Procedure
3. Remove the electrical box.
1Disconnect the
connector for the
overload protector
[S40].
2Disconnect the
connector for the four
way valve coil [S80].
3Disconnect the relay
connector for the
compressor motor.
4Release the harnesses
from the hook.
Step Procedure Points
[S40]
(R14799)
[S80]
(R11772)
(R11774)
(R14800)

Si001073 Removal of Electrical Box / PCBs
Removal Procedure 15
5Disconnect the
connector for the
electronic expansion
valve coil [S20].
6Unfasten the hook of
the electrical box from
the partition plate with a
flat screwdriver.
The electrical box can be
removed without a
screwdriver.
7Lift and remove the
electrical box.
4. Remove the control PCB.
1Disconnect the 2
terminals of the reactor.
Step Procedure Points
(R14801)
[S20]
(R7318)
Electrical box
(R14802)
(R14803)
Reactor
BrownWhite Control PCB

Removal of Electrical Box / PCBs Si001073
16 Removal Procedure
2Pull out the terminals
from the terminal board.
1: black, upper
2: white, lower
3: red, upper
( ) : green, lower
3Cut the clamp.
4Remove the 3 screws
and remove the reactor.
5Disconnect the 3
connectors for the filter
PCB [S10] [HN3] [HL3].
Step Procedure Points
Terminal board
(R14804)
(R14805)
Reactor
(R11777)
[S10]
(R17309)
[HN3]:
blue [HL3]:
orange

Si001073 Removal of Electrical Box / PCBs
Removal Procedure 17
6Release the harnesses.
7Remove the 5 screws
of the control PCB.
8Remove the screw of
the earth wire.
9Remove the plate with
a flat screwdriver.
Step Procedure Points
(R11782)
(R14808)
(R14809)
(R14810)

Removal of Electrical Box / PCBs Si001073
18 Removal Procedure
10 Remove the screw.
11 Unfasten the 2 hooks.
12 Lift and remove the
control PCB.
13 Feature of the control
PCB
[S10] [HN3] [HL3]: filter PCB
[S20]: electronic expansion
valve coil
[S40]: overload protector
[S70]: fan motor
[S80]: four way valve coil
[S90]: thermistors
5. Remove the filter PCB.
1Cut the clamp.
Step Procedure Points
(R14811)
(R14812)
[S70]
[S10] [S90]
[S40]
[S20]
[S80]
[HL3]
[HN3]
(R11784)
(R14813)