Daikin 3MWKS80LV1 User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
80 kW Class
Outdoor Unit
Inverter
Multi Type
Si121557E

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only
3MWKS80LV1
zWater Heater
TUL-55KVM
TUL-75KVM
TUL-100KVM
TUR-55KVM
TUR-75KVM
TUR-100KVM

Si121557E
Removal Procedure 1
Table of Contents
1. Outdoor Unit............................................................................................2
1.1 Outer Panels / Outdoor Fan .....................................................................2
1.2 Fan Motor ...............................................................................................10
1.3 Electrical Box..........................................................................................12
1.4 PCBs ......................................................................................................18
1.5 Reactor...................................................................................................24
1.6 Coils / Thermistors .................................................................................25
1.7 Sound Blankets ......................................................................................27
1.8 Compressor............................................................................................29
2. Water Heater.........................................................................................31
Note: The illustrations may be slightly different depending on the model.

Outdoor Unit Si121557E
2Removal Procedure
1. Outdoor Unit
1.1 Outer Panels / Outdoor Fan
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 suction grille. The hooks are secured in
the clearances of the
outdoor heat exchanger fins.
1
2
Unfasten the 5 hooks.
Remove the suction
grille.
2. Remove the top panel.
1
2
Remove the 8 screws.
Lift up the top panel and
remove it.
3. Remove the front panel
(2).
This screw is M5 × 16.
1 Remove the 5 screws.
(R17585)
Hook
Hook
Suction grille
(R22022)
Top panel
+
Front Panel (2)
Front
Panel (1)
(R13637)

Si121557E Outdoor Unit
Removal Procedure 3
2 Slide the front panel (2)
downward to release
the hook.
3 Remove the front panel
(2).
4. Remove the right side
panel.
1 Remove the 2 screws.
Step Procedure Points
(R21942)
Hook
(R13639)
Right side panel (R13640)

Outdoor Unit Si121557E
4Removal Procedure
2 Slide the right side
panel downward to
unfasten the 2 hooks on
the back side.
Step Procedure Points
(R13645)
Hook
(R6378)
Hook
(R13646)

Si121557E Outdoor Unit
Removal Procedure 5
5. Remove the outdoor fan
and the front panel (1).
Remove the discharge grille
and outdoor fan first to
remove the front panel (1).
1 Remove the 4 screws
on the discharge grille.
2
3
Slide the discharge
grille downward to
unfasten the 2 hooks at
the top.
Remove the discharge
grille.
4 Remove the nut and
remove the outdoor fan.
Nut size : M8
When reassembling, align
the mark of the outdoor
fan with the D-cut section of
the motor shaft.
Step Procedure Points
(R13641)
Discharge grille
Front
Panel (1)
(R21943)
Hook
(R13644)
Outdoor fan
13 mm
(0.51 inch)
(R18965)

Outdoor Unit Si121557E
6Removal Procedure
5 Remove the 5 screws
on the front panel (1).
6 Release the hook and
remove the front panel
(1).
6. Remove the rear panel.
1 Remove the screw on
the partition plate (2)
and remove the
partition plate (2).
Step Procedure Points
(R18785)
(R17716)
(R13650)
Partition
plate (2)
Rear panel

Si121557E Outdoor Unit
Removal Procedure 7
2 Remove the 5 screws
and remove the wire
fixture.
3 Disconnect the
connecting wires.
4 Disconnect the
connector [S402].
[S402]: water heater thermistor
Step Procedure Points
(R21944)
Wire fixture
(R13652)
[S402]
(R22025)

Outdoor Unit Si121557E
8Removal Procedure
5 Remove the screw of
the resin clamp.
When reassembling, attach
the resin clamp as below.
6 Remove the water
heater thermistor.
7 Pull out the holder of
the outdoor
temperature thermistor.
The holder is secured in the
clearances of the outdoor
heat exchanger fins.
Step Procedure Points
(R13654)
Resin
clamp
<Correct>
<Wrong>
(R22023)
(R15740)
Water
heater
thermistor
(R10388)
Outdoor temperature thermistor