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

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

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