Daikin 2MKC30QVM4 User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Inverter
Multi Type
3.0 kW Class
Si121656E

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only
2MKC30QVM4

Si121656E
Removal Procedure 1
Table of Contents
1. Outer Panels ...........................................................................................2
2. Outdoor Fan / Fan Motor.........................................................................3
3. Electrical Box / PCB ................................................................................5
4. Thermistor ASSY ..................................................................................11
5. Right Side Panel / Partition Plates / Sound Blankets ............................13
6. Electronic Expansion Valve Coils / Gas Pipe Thermistor ASSY ...........17
7. Compressor...........................................................................................18

Outer Panels Si121656E
2Removal Procedure
1. Outer Panels
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1
2
Remove the 4 screws,
and then the top panel.
Remove the 5 screws
of the front panel.
3
4
Lift up the left side of
the front panel and
unfasten the 3 hooks.
Unfasten the 2 right
side hooks and remove
the front panel.
When reassembling, make
sure that the 5 hooks are
securely fastened.
5
6
Rotate the discharge
grille counterclockwise
to unfasten the 6 hooks.
Remove the discharge
grille.
(R23599)
Top panel
Front panel
(R23600)
(R23601)
Discharge grille
Hook
Hook

Si121656E Outdoor Fan / Fan Motor
Removal Procedure 3
2. Outdoor Fan / 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
2
Disconnect the
connector [S71] and
pull out the clamp.
Release the fan motor
lead wire from the
groove.
[S71]: fan motor
When reassembling, fix the
shield plate to the electrical
box using the clamp.
3 Remove the nut, and
then the outdoor fan.
When reassembling, put the
fan motor lead wire through
the back of the fan motor to
avoid any entanglement with
the outdoor fan.
Nut size: M6
When reassembling, align
the mark of the outdoor
fan with the D-cut section of
the motor shaft.
Groove [S71]
Fan motor lead wire Clamp (R23602)
Clamp
(R23603)
Nut
D-cut
Outdoor fan
(R23604) Lead wire Outdoor fan
(R3249)
10 mm
(0.39 inch)
(R18954)

Outdoor Fan / Fan Motor Si121656E
4Removal Procedure
4 Remove the 2 screws,
and then the fan motor
fixing frame.
When reassembling, fit the 2
lower hooks into the bottom
frame.
5 Unfasten the 3 hooks
on the fan motor fixing
frame and release the
fan motor lead wire.
6 Remove the 4 screws
from the fan motor.
7 Remove the fan motor.
Step Procedure Points
Fan motor fixing frame
(R23605)
Hook (R21610)
Hook
Fan motor lead wire
Back view
(R23606)
Fan motor
(R23607)
Front view
(R22830)

Si121656E Electrical Box / PCB
Removal Procedure 5
3. Electrical Box / PCB
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 shield plate. When reassembling, make
sure that the 5 hooks are
securely fastened.
1
2
Remove the screw of
the stop valve cover.
Slide the stop valve
cover downward and
remove it.
3 Remove the screw of
the shield plate.
4 Lift up the shield plate
and unfasten the 2
hooks to remove it.
When reassembling, make
sure that the 2 hooks are
securely fastened.
(R23608)
Stop valve cover
Hook
Hook
(R23609)
(R23610)
Shield plate
Hook
(R23611)

Electrical Box / PCB Si121656E
6Removal Procedure
2. Remove the terminal
boards.
1 Remove the 5 screws,
and then the wire
fixture.
2 Remove the 11 screws
on the 2 terminal
boards and disconnect
the 2 connecting wires
(Room A and B) and
power supply wire.
3 Remove the 2 screws
of the 2 terminal
boards.
Step Procedure Points
Wire fixture
(R23612)
Terminal board
Connecting wire
(Room B)
Connecting wire
(Room A)
Power supply
wire
(R23613)
(R23614)

Si121656E Electrical Box / PCB
Removal Procedure 7
4 Pull out the clamp and
remove the 2 terminal
boards from the
terminal board
mounting plate.
When reassembling, make
sure the ferrite core does not
touch the terminal board
mounting plate.
3. Remove the electrical
box.
[S40]: overload protector
1 Disconnect the
connector [S40].
2 Disconnect the
connectors [S20] and
[S21].
[S20] (white): electronic
expansion valve coil for room A
[S21] (red): electronic
expansion valve coil for room B
Step Procedure Points
Terminal board mounting plate
Ferrite core Clamp
(R23615)
[S40]
(R23616)
[S21]
[S20]
(R23617)

Electrical Box / PCB Si121656E
8Removal Procedure
3 Disconnect the
connectors [S90] and
[S92] and pull out the
clamp.
[S90], [S92]: thermistors
4 Disconnect the
connector [S30].
[S30]: compressor
5 Pull out the clamp.
Step Procedure Points
[S90]
Clamp
[S92]
(R23618)
[S30]
(R23619)
(R23620)
Clamp