Daikin RMKS112EV1A User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
10.0/11.2/12.5/14.0/16.0 kW Class
Outdoor Unit
Inverter
Multi Type
Si181180

Service Manual
Removal Procedure
Outdoor Unit
Applicable Models
zCooling Only
RMKS112EV1A
RMKS140EV1A
RMKS160EV1A
zHeat Pump
RMXS112EV1A
RMXS140EV1A
RMXS160EV1A
RMXS100KVLT
RMXS125KVLT
RMXS140KVLT
zBP Unit
BPMKS967A2
BPMKS967A3

Si181180
Removal Procedure 1
Table of Contents
1. Outdoor Unit............................................................................................2
1.1 Removal of Outer Panels .........................................................................2
1.2 Removal of PCBs / Electrical Components ..............................................5
1.3 Removal of Outdoor Fans / Fan Motors .................................................12
1.4 Removal of Thermistors .........................................................................14
1.5 Removal of Electronic Expansion Valves / Peripheral Equipments .......15
1.6 Removal of Four Way Valve...................................................................19
1.7 Removal of Compressor.........................................................................20
2. BP Unit ..................................................................................................23
2.1 Removal of PCB Assembly ....................................................................23
2.2 Removal of Electronic Expansion Valve Coils........................................26
Note: The illustrations may be slightly different depending on the model.
The illustrations are for heat pump models as representative.

Outdoor Unit Si181180
2Removal Procedure
1. Outdoor Unit
1.1 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
2
3
4
5
Remove the 8 screws
and remove the top
panel.
Remove the screw of
the front panel (2).
Push the front panel (2)
downward to release
the hook and remove it.
Remove the screw and
remove the piping cover
(front).
Remove the 4 screws
and remove the piping
cover (rear).
Detach the outdoor
temperature thermistor.
Remove the 6 screws
and remove the right
side panel.
It is possible to remove only
the front panel (2) without
removing the top panel.
Top panel
(R12962)
Front panel
(2)
Piping cover
(front)
Hook
(R12963)
Right side
panel
Piping cover
(rear)
(R9211)
Outdoor temperature
thermistor

Si181180 Outdoor Unit
Removal Procedure 3
6 The outdoor unit has 2
discharge grilles.
Remove the 4 screws
and unfasten the 4
hooks to remove a
discharge grille.
7 Remove the 7 screws
of the front panel (1).
Push the front panel (1)
upward and remove it.
On the rear side of the front
panel (1), a reinforce plate is
attached. Be careful not to
lose it while removing the
front panel (1).
Step Procedure Points
Front panel (1)
Discharge grille (R9213)
(R9215)
Reinforce plate

Outdoor Unit Si181180
4Removal Procedure
8 Unfasten the 3 hooks
with a flat screwdriver
and remove the suction
grille.
9 Pull the outdoor
temperature thermistor
and slide it to the right.
Detach the outdoor
temperature thermistor.
Step Procedure Points
Suction
grille
(R12964)
(R12965)
(R9218)
Outdoor
temperature
thermistor

Si181180 Outdoor Unit
Removal Procedure 5
1.2 Removal of PCBs / Electrical Components
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 2 screws
of the terminal
mounting plate.
Preparation
Remove the outer panels
according to the “Removal of
Outer Panels”.
M5(3) × 12
2 Remove the screw
above the electrical
component assembly.
M5(3) × 12
3 Unfasten the clamp
from the terminal
mounting plate.
(R12966)
Terminal mounting plate
(R9220)
(R9221)

Outdoor Unit Si181180
6Removal Procedure
4 Cut off the 3 clamps.
5 Disconnect the relay
connector for the
reactor lead wire from
each other.
Step Procedure Points
(R9222)
(R9223)
(R9224)
(R9225)

Si181180 Outdoor Unit
Removal Procedure 7
6 Disconnect the 2
connectors for the fan
motor [X106A] [X107A].
7 Release the fan motor
lead wires from the
hooks.
8 Release the lead wires
of the solenoid valves
and four way valve from
the fixing plate and then
remove the electrical
component assembly.
Step Procedure Points
(R12967)
[X106A] [X107A]
(R9227)
(R9228)

Outdoor Unit Si181180
8Removal Procedure
9 Remove the 2 screws
of the insulation sheet
and then release the
compressor lead wires
(blue, red, white) and
the lead wires between
A1P and A3P (red,
blue) from the hooks.
10 Remove the 2 screws
from [LB] (red) and [NB]
(blue) on A3P and
disconnect the 2 lead
wires of condenser
(orange, gray).
M4 × 8 with spring washer
Step Procedure Points
(R9229)
(R9230)
(R12968)
Condenser (C4)
Orange
[NB]
[LB]
Gray