Daikin FTK18NMVJU Manual de usuario

REMOVAL

PROCEDURE

SERVICE MANUAL

Indoor Unit

Inverter

Wall Mounted Type

15000/18000/24000 Btu/h Class

Si041553EB

Service Manual

Removal Procedure

Indoor Unit

zCooling Only zHeat Pump

FTK18NMVJU FTX15NMVJU

FTK24NMVJU FTX18NMVJU

FTKN18NMVJU FTX24NMVJU

FTKN24NMVJU FTXN18NMVJU

FTXN24NMVJU

FTK24P5VL

FTX24N5VL

FTH24P5VL

Si041553EB

Removal Procedure 1

Table of Contents

1. Air Filters .................................................................................................2

2. Front Panel..............................................................................................3

3. Front Grille ..............................................................................................4

4. Horizontal Blades ....................................................................................5

5. Electrical Box / Swing Motor ...................................................................6

6. PCBs .....................................................................................................10

7. Indoor Heat Exchanger .........................................................................13

8. Fan Rotor / Fan Motor...........................................................................16

9. Fan Guards / Vertical Blade ASSYs......................................................18

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

Air Filters Si041553EB

2Removal Procedure

1. Air Filters

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. The air filter is not marked

for difference between the

right and left sides.

The air filter can be set

easily by inserting it along

the guides.

Insert the air filter with the

“FRONT” mark faced up.

Be sure to insert the 2 lower

hooks when installing the air

filter.

Open the front panel.

Unfasten the 2 hooks

and pull out the air filter

downward to remove it.

Remove the other air

filter in the same way.

2. Remove the optional

filters.

The right and left filters are

interchangeable.

1 Remove the optional

filter ASSY by

unfastening the 4

projections from the

back of the air filter

frame.

Unfasten the 5 hooks

and remove the

optional filter from its

frame.

Remove the other

optional filter in the

same way.

Front panel

Air filterHook

(R21491)

Optional filter ASSY

Projection

(R21492)

Optional filter

frame

Optional

filter

Hook

(R24270)

Si041553EB Front Panel

Removal Procedure 3

2. 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 Release the left and

right shafts.

2 Remove the front panel. When reassembling the front

panel, fit the right and left

shafts one by one into the

grooves and fully push them

in position.

Left Shaft

(R24362)

Right Shaft

(R24285)

Front panel

(R21496)

Front Grille Si041553EB

4Removal Procedure

3. 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 3 screws

of the front grille.

Unfasten the 3 hooks at

the top.

Pull out the upper part

of the front grille, lift up

the lower part, and then

remove the front grille.

The convex marks (…) on

the front panel indicate the

position of the hooks.

When reassembling, make

sure that all the 3 hooks are

fastened.

Front grille

(R21497)

Hook

(R21498)

(R12715)

Si041553EB Horizontal Blades

Removal Procedure 5

4. Horizontal Blades

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

disassembling work.

Step Procedure Points

1 Release the center

shafts of the upper

horizontal blade while

bending the blade

slightly.

Release the left shaft.

Release the right shaft.

4 Remove the upper

horizontal blade.

Installation procedure

1. Fit the right shaft of the

horizontal blade first. Make

sure to rotate the horizontal

blade so the shaft fits in the

correct position.

2. Fit the horizontal blade to the

center and left shafts.

When reassembling, install

the lower horizontal blade

first.

5 Remove the lower

horizontal blade in the

same way.

Upper horizontal blade

Center shaft

(R21499)

Shaft

Left

(R21008)

Shaft

Right

(R24271)

Upper horizontal blade (R21500)

Lower horizontal blade (R21501)

Electrical Box / Swing Motor Si041553EB

6Removal Procedure

5. Electrical Box / 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. Disconnect the

connecting wire.

The service cover can be

removed without removing

the front grille.

The service cover has no

hook and may fall when the

screw is loosened. Be

careful not to drop the

service cover.

1 Remove the screw, and

then the service cover.

Remove the screw, and

then the wire fixture.

Remove the screw, and

then the conduit holding

the connecting wire.

Remove the 4 screws

of the terminal board

and disconnect the

connecting wire.

Conduit is only for U.S.

models.

2. Remove the electrical

box.

When reassembling, be sure

to insert the earth/ground

wires in the front slit and

green/yellow wire is above

the green wire.

When reassembling, make

sure to pass the green earth/

ground wire behind the heat

exchanger tube (the tube

with the thermistor).

Remove the 2 screws

and detach the earth/

ground wires.

Release the earth/

ground wires from the

front slit at the top of the

electrical box.

Service cover

(R21502)

Wire fixture Conduit

Terminal board

Connecting

wire

(R21503)

Electrical

box

Front slit

Earth/ground wire (green/yellow)

Earth/ground wire (green) (R24272) Green/yellow

Green

(R24275)

Si041553EB Electrical Box / Swing Motor

Removal Procedure 7

3 Pull out the indoor heat

exchanger thermistor.

Be careful not to lose the clip

of the thermistor.

When reassembling, pass

the indoor heat exchanger

thermistor behind the green

earth/ground wire.

4 Release the thermistor

harness from the slit at

the top of the electrical

box.

5 Unfasten the 4 hooks

and remove the

electrical box cover.

When reassembling, make

sure the 4 hooks are

securely fastened.

Step Procedure Points

Indoor heat

exchanger

thermistor

(R21505)

Clip

(R11268)

Thermistor harness Electrical box

Thermistor

harness

Slit

(R24273)

Electrical box

cover

Hook

(R21508)

When reassembling, be

sure to insert the thermistor

harness in the slit as shown

in the picture.

Electrical Box / Swing Motor Si041553EB

8Removal Procedure

Disconnect the

connector [S200].

Release the harnesses

from the 4 hooks and

the groove.

[S200]: fan motor

Disconnect the

connector [S6].

Release the harnesses

from the 2 hooks and

from the groove.

[S6]: swing motor

10 Remove the screw of

the electrical box.

Step Procedure Points

Hook Hook

[S200]

Groove

Right view

(R24363)

Hook

[S6]

Groove

(R21510)

Electrical

box

(R22754)

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