Daikin FTKS20KVLT User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
2.0/2.5/3.0/3.5/4.2/4.6/5.0 kW Class
Si041049

Service Manual
Removal Procedure
Indoor Unit
zCooling Only zHeat Pump
FTKS20KVLT FTXS20KVLT
FTKS25KVLT FTXS25KVLT
FTKS30KVLT FTXS30KVLT
FTKS25KVMA FTXS25KVMA
FTKS35KVMA FTXS35KVMA
FTXS46KVMA
FTXS20G2V1B
FTXS25G2V1B FTXL20G2V1B
FTXS35G2V1B FTXL25G2V1B
FTXS42G2V1B FTXL35G2V1B
FTXS50G2V1B
FTXG25JV2CW
FTXS20J2V1B FTXG35JV2CW
FTXS25J2V1B FTXG50JV2CW
FTXS35J2V1B FTXG50JV2C
FTXS42J2V1B
FTXS50J2V1B FTXS20G2V1B
FTXS25G2V1B
FTXS35G2V1B
FTXS42G2V1B
FTXS50G2V1B
FTXS20J2V1B
FTXS25J2V1B
FTXS35J2V1B
FTXS42J2V1B
FTXS50J2V1B
ATXS20G2V1B
ATXS25G2V1B
ATXS35G2V1B
ATXS42G2V1B
ATXS50G2V1B

Si041049
Removal Procedure 1
Table of Contents
1. Removal of Air Filters..............................................................................2
2. Removal of Front Panel ..........................................................................4
3. Removal of Front Grille ...........................................................................5
4. Removal of Horizontal Blades / Vertical Blades......................................7
5. Removal of Electrical Box .....................................................................11
6. Removal of PCBs (Pattern 1)................................................................14
7. Removal of PCBs (Pattern 2)................................................................20
8. Removal of Swing Motors (Pattern 1) ...................................................24
9. Removal of Swing Motors (Pattern 2) ...................................................28
10.Removal of Indoor Heat Exchanger ......................................................31
11.Removal of Fan Motor...........................................................................34
Note: The illustrations may be slightly different depending on the model.

Removal of Air Filters Si041049
2Removal Procedure
1. Removal of Air Filters
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1. Appearance features
Warning
Dangerous: High voltage
A high voltage is applied to all
the electric circuits of this
product including
thermistors.
When the signal receiver
catches a signal from the
remote controller, the
receiving tone sounds and
the operation lamp blinks
immediately to confirm the
signal reception.
When the [ON/OFF] button
is kept pressed for 5
seconds, the forced cooling
operation is performed for
about 15 minutes.
2. Remove the air filters.
1Open the front panel to
the position where it
stops.
2Slightly push up the
center knob of the air
filter and release the
hooks.
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 hooks
(at 2 lower positions) when
reassembling the air filter.
3Pull out the air filter
downward and remove
it.
(R7900)
(R7901)
Signal receiver
Operation lamp
TIMER lamp
[ON/OFF] button Room temperature thermistor
INTELLIGENT
EYE sensor
INTELLIGENT
EYE lamp
(R7902)
Front panel
(R7903)
Air filter

Si041049 Removal of Air Filters
Removal Procedure 3
3. Remove the Titanium
apatite photocatalytic air-
purifying filters.
1The Titanium apatite
photocatalytic air-
purifying filter ASSY is
attached to the back of
the air filter.
The right and left filters are
interchangeable.
2Remove the Titanium
apatite photocatalytic
air-purifying filter ASSY
by unfastening the
projections from the
back of the air filter
frame.
3Unfasten the 5 hooks
and remove the
Titanium apatite
photocatalytic air-
purifying filter from its
frame.
Step Procedure Points
(R7904)
Air filter
Titanium apatite
photocatalytic
air-purifying filter ASSY
(R13487)
Projection
(R13174)

Removal of Front Panel Si041049
4Removal Procedure
2. Removal of Front Panel
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Open the front panel
over the position where
it stops.
2Slide the left rotary
shaft to the right and
release it.
When reassembling the front
panel, fit the right and left
rotary shafts one by one into
the grooves and fully push
them into position.
3Slide the right rotary
shaft to the left and
release it.
4Remove the front
panel.
(R7906)
Front panel
(R7907)
Rotary shaft
(R7909)
Rotary shaft
(R7910)

Si041049 Removal of Front Grille
Removal Procedure 5
3. Removal of Front Grille
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 service cover. Preparation
Remove the front panel
according to the “Removal of
Front Panel”.
1Remove the screw of
the service cover.
2Pull out the service
cover diagonally down
in the direction of the
arrow.
3The figure shows the
inside.
(R7911)
Service cover
(R13488)
(R13489)

Removal of Front Grille Si041049
6Removal Procedure
2. Remove the front grille.
1Remove the 2 screws.
2Unfasten the 3 hooks at
the top.
The convex marks (...) on
the front panel indicate the
position of the hooks.
3Pull the upper part of
the front grille out and
lift the lower part up,
and then remove the
front grille.
When reassembling, make
sure that all the 3 hooks are
fastened as they were.
Step Procedure Points
(R13490)
(R13491)
Hook
(R12715)
(R12268)

Si041049 Removal of Horizontal Blades / Vertical Blades
Removal Procedure 7
4. Removal of Horizontal Blades / Vertical Blades
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 horizontal
blade (large).
1Open the horizontal
blade (large).
When reassembling, mount
the large horizontal blade to
the upper position and the
small horizontal blade to the
lower position.
Do not put them in the wrong
place.
2Unfasten the center
shaft while bending the
horizontal blade (large)
slightly.
3Unfasten the left shaft.
4Unfasten the right shaft. There is a key alignment at
the right shaft. When
reassembling, insert the right
shaft first while turning.
After inserting the right shaft,
first mount the horizontal
blade to the center shaft and
then to the left shaft.
(R7921)
Horizontal blade (large)
Horizontal blade (small)
(R13175)
(R13073)
(R13492)
Key alignment

Removal of Horizontal Blades / Vertical Blades Si041049
8Removal Procedure
2. Remove the horizontal
blade (small).
1Unfasten the center
shaft while bending the
horizontal blade (small)
slightly.
2Unfasten the left shaft.
3Unfasten the right shaft. There is a key alignment at
the right shaft. When
reassembling, insert the right
shaft first while turning.
After inserting the right shaft,
first mount the horizontal
blade to the center shaft,
and then to the left shaft.
3. Remove the fan guard. Some models have no fan
guard.
1Unfasten the hooks at
the lower part of the fan
guard with a flat
screwdriver.
Step Procedure Points
(R13493)
Horizontal blade (small)
(R13494)
(R13495)
Key alignment
(R13751)