Daikin RK15KEVM User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
1.5 kW Class
Outdoor Unit
Inverter
Pair Type
Si001159

Service Manual
Removal Procedure
Outdoor Unit
Applicable Model
zCooling Only
RK15KEVM

Si001159
Removal Procedure 1
Table of Contents
1. Removal of Outer Panels ........................................................................2
2. Removal of Outdoor Fan / Fan Motor .....................................................4
3. Removal of Electrical Box / PCBs ...........................................................6
4. Removal of Sound Blankets..................................................................19
5. Removal of Electronic Expansion Valve ASSY.....................................21
6. Removal of Compressor .......................................................................22

Removal of Outer Panels Si001159
2Removal Procedure
1. Removal of Outer Panels
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)
(R14769)
Stop valve
cover
(R14606)
Shield plate
Hook

Si001159 Removal of Outer Panels
Removal Procedure 3
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
(R14771)
Top panel
Front panel
(R14772)
(R14773)
(R14774)
Discharge grille

Removal of Outdoor Fan / Fan Motor Si001159
4Removal Procedure
2. 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
mark of the outdoor fan
with 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.
(R14775)
Shaft
D-cut
Nut
Outdoor
fan
10 mm
(R12236)
(R14776)
Fan motor lead wire [S70]

Si001159 Removal of Outdoor Fan / Fan Motor
Removal Procedure 5
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.
4Release the fan motor
lead wire from the
hooks.
5Remove the 3 screws
to remove the fan
motor.
Step Procedure Points
(R14777)
Fan motor fixing frame
(R3249)
Lead wire Outdoor fan
(R14778)
(R14779)
Fan motor

Removal of Electrical Box / PCBs Si001159
6Removal Procedure
3. 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”.
1Unhook the outdoor
temperature thermistor.
2Release the outdoor
temperature thermistor
from the groove.
3Remove the screws
and release the
connecting wires.
(R14780)
Outdoor temperature thermistor
(R14781)
(R14782)

Si001159 Removal of Electrical Box / PCBs
Removal Procedure 7
4Remove the 3 screws
and remove the wire
clamp.
5Remove the screw on
the rear side of the right
side panel.
6Remove the 4 screws
on the right side panel.
Step Procedure Points
(R14783)
Wire
clamp
(R14784)
Right
side
panel
(R14785)

Removal of Electrical Box / PCBs Si001159
8Removal Procedure
7Unfasten the hook on
the rear side.
When reassembling, make
sure to fit the hook.
8Unfasten the hook
above the electrical
box.
9Unfasten the hook, and
remove the right side
panel.
Step Procedure Points
Hook
(R14786)
(R14787)
(R14788)
Right
side
panel
Hook

Si001159 Removal of Electrical Box / PCBs
Removal Procedure 9
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 upper clamp.
Step Procedure Points
Discharge pipe thermistor
(R14789)
Dent
Fixture
(R11740)
(R14790)
Outdoor heat
exchanger
thermistor
(R14791)

Removal of Electrical Box / PCBs Si001159
10 Removal Procedure
4Cut the lower clamp.
5Lift the hook with a flat
screwdriver, and
remove the electronic
components mounting
plate.
6Release the harnesses.
Step Procedure Points
(R14792)
Electronic components mounting plate
(R14795)
(R14796)

Si001159 Removal of Electrical Box / PCBs
Removal Procedure 11
7Disconnect the
connector for the
thermistors [S90].
[S90]: outdoor temperature
thermistor, outdoor heat
exchanger thermistor,
discharge pipe
thermistor
8Remove the thermistor
ASSY.
3. Remove the electrical box.
1Disconnect the
connector for the
overload protector
[S40].
Step Procedure Points
[S90]
(R14797)
(R14798)
[S40]
(R14799)

Removal of Electrical Box / PCBs Si001159
12 Removal Procedure
2Disconnect the relay
connector for the
compressor motor.
3Release the harnesses
from the hook.
4Disconnect the
connector for the
electronic expansion
valve coil [S20].
5Unfasten the hook of
the electrical box from
the partition plate with a
flat screwdriver.
The electrical box can be
removed without a
screwdriver.
Step Procedure Points
(R11774)
(R14800)
(R14801)
[S20]
(R7318)

Si001159 Removal of Electrical Box / PCBs
Removal Procedure 13
6Lift and remove the
electrical box.
4. Remove the control PCB.
1Disconnect the 2
terminals of the reactor.
2Pull out the terminals
from the terminal board.
Step Procedure Points
Electrical box
(R14802)
(R14803)
Reactor
BrownWhite Control PCB
Terminal board
(R14804)

Removal of Electrical Box / PCBs Si001159
14 Removal Procedure
3Cut the clamp.
4Remove the 3 screws
and remove the reactor.
5Disconnect the 3
connectors for the filter
PCB [S10] [HN3] [HL3].
6Release the harnesses.
Step Procedure Points
(R14805)
Reactor
(R11777)
[S10]
[HN3] [HL3]
(R14807)
(R11782)

Si001159 Removal of Electrical Box / PCBs
Removal Procedure 15
7Remove the 5 screws
of the control PCB.
8Remove the screw of
the earth wire.
9Remove the plate with
a flat screwdriver.
10 Remove the screw.
Step Procedure Points
(R14808)
(R14809)
(R14810)
(R14811)

Removal of Electrical Box / PCBs Si001159
16 Removal Procedure
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
[S90]: thermistors
5. Remove the filter PCB.
1Cut the clamp.
2Release the harnesses
from the hooks.
Step Procedure Points
(R14812)
[S70]
[S10] [S90]
[S40]
[S20]
[HL3]
[HN3]
(R14850)
(R14813)
(R14814)

Si001159 Removal of Electrical Box / PCBs
Removal Procedure 17
3Remove the screw.
4Unfasten the 2 hooks.
Step Procedure Points
(R14815)
(R14816)
(R14817)

Removal of Electrical Box / PCBs Si001159
18 Removal Procedure
5Release the harnesses.
6Remove the filter PCB.
Step Procedure Points
(R14818)
(R14819)
Filter PCB