Daikin FT15LV14 User manual

REMOVAL

PROCEDURE

SERVICE MANUAL

Indoor Unit

Non-Inverter

Wall Mounted Type

1.5/2.0/2.5/3.5 kW Class

Si041265EC

Service Manual

Removal Procedure

Indoor Unit

zCooling Only

FT15LV14

FT20LV14

FT25LV14

FTE15LV1

FTE20LV1

FTE25LV1

FTE20MV1V

FTE25MV1V

FTNE15MV1

FTNE20MV1

FTNE25MV1

FTNE35MV1

FTNE15MV14

FTNE20MV14

FTNE25MV14

FTNE35MV14

FTNE25MV18

FTNE35MV18

Si041265EC

Removal Procedure 1

Table of Contents

1. Air Filters / Front Panel ...........................................................................2

2. Front Grille ..............................................................................................3

3. Horizontal Blades / Vertical Blade ASSYs ..............................................4

4. Electrical Box / PCBs / Swing Motor .......................................................5

5. Indoor Heat Exchanger ...........................................................................8

6. Fan Motor / Fan Rotor...........................................................................10

Note: The illustrations may be slightly different depending on the model.

Air Filters / Front Panel Si041265EC

2Removal Procedure

1. Air Filters / Front Panel

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 air filters.

1 Open the front panel to

the position where it

stops.

2 Remove the air filter. Left and right filters are

interchangeable.

When reassembling, insert

the air filter along the guides.

2. Remove the front panel.

Open the front panel

fully.

Push the shafts towards

the inside to release.

3 Remove the front panel. When reassembling the front

panel, fit the shafts one by

one into the grooves and

fully push them into position.

(R18646)

Front panel

(R18647)

Air filter

(R23426)

Shaft

(R2513)

Si041265EC Front Grille

Removal Procedure 3

2. Front Grille

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.

2 Unfasten the 2 hooks

on the top.

3 Remove the front grille. When reassembling, make

sure that all hooks are

securely fastened.

(R18500)

Front

grille

Hook

(R2519)

(R2521)

In case that the hooks can

not be pressed from above,

remove the front grille while

pushing the hook from the

space between the front

grille and the indoor heat

exchanger.

Horizontal Blades / Vertical Blade ASSYs Si041265EC

4Removal Procedure

3. Horizontal Blades / Vertical Blade ASSYs

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 horizontal

blades.

1 Open the horizontal

blades.

2 Unfasten the center and

left shafts while bending

the horizontal blade

(small) slightly.

When reassembling, mount

the large horizontal blade to

the upper position and the

small horizontal blade to the

lower position.

Unfasten the right shaft

and remove the

horizontal blade (small).

Remove the horizontal

blade (large) in the

same way.

Installation procedure

1. Fit the horizontal blade to the

right shaft first. Make sure to

rotate the horizontal blade so

the shaft fits correctly.

2. Fit the horizontal blade to the

center and left shafts.

2. Remove the vertical blade

ASSYs.

Each vertical blade ASSY

has 5 fins, which can not be

replaced individually.

The vertical blade ASSY is

not marked for difference

between right and left.

Unfasten the 4 hooks.

Remove the vertical

blade ASSY.

Remove the other

vertical blade ASSY in

the same way.

(R2522)

(R18761)

Horizontal blade (large)

Horizontal blade

(small)

(R23377)

Right shaft

Hook

(R23378)

Si041265EC Electrical Box / PCBs / Swing Motor

Removal Procedure 5

4. Electrical Box / PCBs / Swing Motor

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 electrical

box.

Remove the 4 screws

and disconnect the

connecting wires.

Remove the screw, and

then the wire fixture.

Disconnect the

connectors.

Pull out the indoor heat

exchanger thermistor.

[S1] / [CN_FAN]: fan motor

[S7] / [CN_FANFB]: fan motor

[S6] / [CN_STP]: swing motor

5 Remove the screw on

the terminal board.

6 Remove the screw, and

then the electrical box.

Wire fixture

Connecting

wire

(R18503)

(R21155)

Indoor heat

exchanger thermistor

[S1] / [CN_FAN]

[S7] / [CN_FANFB]

[S6] / [CN_STP]

(R18505)

Terminal

board

(R21156)

Hook

When reassembling the

electrical box, make sure the

hook on the back is securely

fastened.

Electrical Box / PCBs / Swing Motor Si041265EC

6Removal Procedure

2. Remove the PCBs.

1 Remove the shield

plate.

2 Unfasten the 2 hooks.

3 Slide the electrical box

cover to the left and

remove the electrical

box cover.

4 Unfasten the 4 hooks

on the back of the

signal receiver PCB.

Step Procedure Points

Shield plate (R18507)

Hook

(R21157)

Push

here

(R18509)

Electrical

box cover

Hook

Signal receiver

PCB

(R18502)

Si041265EC Electrical Box / PCBs / Swing Motor

Removal Procedure 7

Disconnect the

connector [S26] /

[CN_DSP1] on the

control PCB and

remove the signal

receiver PCB.

Unfasten the 2 hooks at

the bottom and remove

the control PCB.

There are 2 hooks also at

the top of the control PCB.

3. Remove the swing motor.

1 Remove the 2 screws,

and then the swing

motor.

Step Procedure Points

(R23376)

Control PCB

Signal receiver PCB

Hook

[S26] /

[CN_DSP1]

(R21158)

Swing motor

(R2543)

Indoor Heat Exchanger Si041265EC

8Removal Procedure

5. Indoor Heat Exchanger

Warning Be sure to wait for 10 minutes or more after turning off all power supplies before

disassembling work.

In pump-down work, be sure to stop the compressor before disconnecting the

refrigerant pipe. If the refrigerant pipe is disconnected with the compressor operating

and the stop valve open, air may be sucked in and may generate an over-pressure in

refrigeration cycle, thus resulting in pipe rupture or accidental injury.

When removing or reinstalling the indoor heat exchanger, be sure to wear gloves or

wrap the indoor heat exchanger with cloths. (You may be injured by the fins.)

Caution Be sure to conduct pump down operation before disassembling the refrigerant pipe.

If the refrigerant leaks, repair the spot of leaking, then collect all refrigerant from the

unit. After conducting vacuum drying, recharge proper amount of refrigerant.

From the viewpoint of global environmental protection, make sure to use a vacuum

pump for air purging.

Step Procedure Points

Remove the 2 screws

which fix the indoor

heat exchanger to the

installation plate.

Disconnect the drain

hose.

Place a plastic sheet around

the drain pan to prevent

wetting the floor with

remaining drain.

If the drain hose is

embedded in the wall,

disconnect the drain hose

beforehand.

Disconnect the gas

piping and the liquid

piping.

Remove the indoor unit

from the installation

plate.

Hold the indoor unit up with a

piece of wood.

Carry out the removal works

with 2 wrenches.

When the pipings are

disconnected, protect the

openings of both the pipes

and the indoor unit from

moisture intrusion.

5 Unfasten the hook and

remove the piping

fixture on the back.

Drain hose

(R18764)

(R2545)

(R18760)

Piping fixture

This manual suits for next models

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