Daikin FTXS20K2V1B User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
2.0/2.5 kW Class
Si041140

Service Manual
Removal Procedure
Indoor Unit
Applicable Models
zHeat Pump
FTXS20K2V1B
FTXS25K2V1B

Si041140
Removal Procedure 1
Table of Contents
1. Removal of Air Filters..............................................................................2
2. Removal of Horizontal Blade...................................................................4
3. Removal of Front Panel ..........................................................................6
4. Removal of Front Grille ...........................................................................7
5. Removal of Vertical Blade ASSYs ..........................................................8
6. Removal of Electrical Box .....................................................................10
7. Removal of Swing Motor / PCBs...........................................................13
8. Removal of Indoor Heat Exchanger......................................................18
9. Removal of Fan Rotor / Fan Motor........................................................21
10.Exchange of Piping Direction (Drain Hose)...........................................24
Note: The illustrations may be slightly different depending on the model.

Removal of Air Filters Si041140
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 a signal from the
remote controller is
received, the receiving tone
sounds and the operation
lamp flickers 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 of the air filter to
unfasten the 2 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
mounting the air filter.
Room temperature thermistor
(R16654)
Signal receiver
(R16655)
Operation
lamp
TIMER
lamp
INTELLIGENT
EYE lamp
[ON/OFF] button
(Forced cooling operation [ON/OFF] button)
(R16656)
Front panel
Hook
(R16657)
Air filter

Si041140 Removal of Air Filters
Removal Procedure 3
3Pull out the air filter
downward and remove
it.
3. Remove the Titanium
apatite photocatalytic
air-purifying filters.
1The Titanium apatite
photocatalytic air-
purifying filter is
attached to the back of
the air filter.
2Remove the Titanium
apatite photocatalytic
air-purifying filter frame
by bending the air filter
and unfastening the
projections from the air
filter frame.
3Remove the Titanium
apatite photocatalytic
air-purifying filter from
its frame (at 5 positions)
by bending it.
To prevent the damage, do
not remove the Titanium
apatite photocatalytic air-
purifying filter from the frame
when cleaning it.
The Titanium apatite
photocatalytic air-purifying
filter is not marked for
difference between the right
and left sides.
Step Procedure Points
(R16658)
Air filter
(R8025)
Titanium apatite
photocatalytic
air-purifying filter
Projection
(R14599)
Hook
(R8027)

Removal of Horizontal Blade Si041140
4Removal Procedure
2. Removal of Horizontal Blade
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 horizontal
blade.
2Unfasten the center
shaft while bending the
horizontal blade
slightly.
The center shaft can be
released easily by bending
the blade.
Cautions for reassembling
1. Since the key pattern hook
is provided, rotate the
horizontal blade and fit it to
the right shaft first.
2. Fit the horizontal blade to
the center and left shafts.
3Unfasten the left shaft
of the horizontal blade.
4Unfasten the right shaft
of the horizontal blade.
(R16659)
Horizontal blade
(R16660)
(R16661)
Shaft
(R16662)
Key pattern hook
Left Right
Shaft

Si041140 Removal of Horizontal Blade
Removal Procedure 5
5Remove the horizontal
blade.
Step Procedure Points
(R16663)

Removal of Front Panel Si041140
6Removal Procedure
3. 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.
2Release the right rotary
shaft.
The rotary shaft on each
side can be released easily
by sliding each shaft inward.
3Release the left rotary
shaft.
4Remove the front panel. When reassembling the
front panel, fit the right and
left rotary shafts one by one
into the grooves and fully
push them in position.
Left side
Front panel
Right side
(R16664)
Right
(R16665)
Rotary shaft
(R16666)
Left Rotary shaft
Rotary shaft
(R16667)

Si041140 Removal of Front Grille
Removal Procedure 7
4. 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
1Remove the 2 screws,
which fix the front grille
to the main body.
2The front grille has 3
hooks on the upper
part.
Refer to the removal
procedure in a reverse way
when reassembling.
3Press each hook, and
also lift the grille up to
unfasten the hooks.
4Pull the upper part of
the front grille out and
lift the lower part up,
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 as they were.
(R16668)
Front grille
(R16669)
Hook
Left Center Right
(R16670)
(R16671)
Left Center Right
(R12715)

Removal of Vertical Blade ASSYs Si041140
8Removal Procedure
5. Removal of Vertical Blade ASSYs
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Unfasten the right and
left hooks of the fan
guard with pliers.
Narrow the edges of the
hook to unfasten it.
2Unfasten the 4 hooks at
the bottom. Remove the
fan guard.
Repeat the same procedure
to remove the fan guard on
the other side.
3Unfasten the hooks at
the upper 2 positions.
A vertical blade ASSY has 6
fins. It is impossible to
replace only one fin.
The vertical blade ASSY is
not marked for difference
between right and left.
Hook
Fan guard
Hook
(R14608)
(R11646)
Hook
(R11647)
Hook
Hook
(R8020)
Vertical blade ASSY
(R8021)