Daikin ATC50QRV16 User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter / Non-Inverter
Wall Mounted Type
5.0/6.0 kW Class
Si041257EC

Service Manual
Removal Procedure
Indoor Unit
zCooling Only
ATC50QRV16 FTE50NRV16
ATC60QRV16 FTE60NRV16
ATC50RRV161
ATC50RRV162 FTEL50NRV16
ATC60RRV162 FTEL60NRV16
ATQ50QRV16 FTF50PRV16
ATQ60QRV16 FTF60PRV16
ATQ50RRV162
ATQ60RRV162 FTQ50PRV16
FTQ60PRV16
DTC50QRV16
DTC60QRV16 FTQ50QRV16
DTC50RRV161 FTQ60QRV16
DTC50RRV162 FTQ50QRV1625
DTC60RRV162 FTQ60QRV1625
FTQ50RRV162
DTQ50QRV16 FTQ60RRV162
DTQ60QRV16 FTQ50RRV1625
DTQ50RRV162 FTQ60RRV1625
DTQ60RRV162
FTKC50NRV16
FTC50PRV16
FTC60PRV16 FTKV50NRV16
FTKV60NRV16
FTC50QRV16
FTC60QRV16
FTC50QRV161
FTC60QRV161
FTC50QRV1615
FTC60QRV1615
FTC50RRV161
FTC50RRV1615
FTC50RRV162
FTC60RRV162
FTC60RRV1625

Si041257EC
Removal Procedure 1
Table of Contents
1. Air Filters / Front Panel / Horizontal Blade / Vertical Blade ASSYs ........2
2. Front Grille ..............................................................................................5
3. Electrical Box ..........................................................................................6
4. PCBs / Swing Motor ................................................................................8
5. Indoor Heat Exchanger .........................................................................10
6. Fan Motor / Fan Rotor...........................................................................12
Note: The illustrations may be slightly different depending on the model.

Air Filters / Front Panel / Horizontal Blade / Vertical Blade ASSYs Si041257EC
2Removal Procedure
1. Air Filters / Front Panel / Horizontal Blade / 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 air filters. The 2 filters are
interchangeable.
Insert the air filter with the
"FRONT" mark faced up.
When reassembling, insert
the air filter along the guides.
Be sure to insert the 2 hooks
when reassembling the air
filter.
1
2
Open the front panel to
the position where it
stops.
Unfasten the 2 hooks
and remove the air
filter.
3 Remove the optional
filter from the back of
the air filter, if any.
2. Remove the front panel.
1 Open the front panel
over the position where
it stops.
2 Push the left shaft to
the right and release
the left shaft.
When reassembling the front
panel, fit the right and left
shafts one by one into the
grooves and fully push them
into position.
(R19771)
Air filter
Front panel
Hook
Air filter
Optional filter
Hook
(R23395)
(R19772)
(R19773)

Si041257EC Air Filters / Front Panel / Horizontal Blade / Vertical Blade ASSYs
Removal Procedure 3
3
4
Remove the right shaft
in the same way.
Remove the front panel.
3. Remove the horizontal
blade.
1 Release the 2 center
shafts of the horizontal
blade.
2 Release the left shaft.
Step Procedure Points
(R19774)
(R19775)
Horizontal blade
(R19776)

Air Filters / Front Panel / Horizontal Blade / Vertical Blade ASSYs Si041257EC
4Removal Procedure
3
4
Release the right shaft.
Remove the horizontal
blade.
Reassembling 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.
4. Remove the vertical blade
ASSYs.
1 Unfasten the 4 hooks of
the vertical blade ASSY
with a flat screwdriver.
2
3
Remove the vertical
blade ASSY.
Remove the other 2
vertical blade ASSYs
likewise.
Step Procedure Points
(R19777)
Hook
Vertical blade ASSY
(R19330)
(R19331)

Si041257EC Front Grille
Removal Procedure 5
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 5 screws
of the front grille.
2 Unfasten the 3 hooks
on the top of the front
grille.
The convex marks (...) on
the front grille indicate the
position of the hooks.
3 Remove the front grille. When reassembling, make
sure all the 3 hooks are
fastened.
(R19778)
Front grille
Hook
(R19779)
(R12715)
(R19781)

Electrical Box Si041257EC
6Removal Procedure
3. Electrical Box
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 screw, and
then the service cover.
2
3
Remove the 4 screws
on the terminal board
and disconnect the
connecting wire.
Remove the screw, and
then the wire fixture.
4 Unfasten the 3 hooks
and remove the
electrical box cover.
(R19782)
Service cover
(R19783)
(R19784)
Wire fixture
Terminal
board
Connecting
wire
(R19785)
Electrical box cover

Si041257EC Electrical Box
Removal Procedure 7
5
6
Remove the screw and
release the earth/
ground wire.
Pull out the indoor heat
exchanger thermistor.
The position of the indoor
heat exchanger thermistor
varies depending on the
model.
Be careful not to lose the clip
of the thermistor.
7 Disconnect the 3
connectors.
(a) fan motor:
[CN_FAN] or [S1]
(b) swing motor:
[CN_STP] or [S6]
(c) fan motor (Hall IC):
[CN101] or [S7]
8 Remove the screw of
the electrical box.
9 Lift up the electrical box
from the bottom frame
and remove the
electrical box.
Step Procedure Points
(R19786)
Earth/ground wire
Indoor heat
exchanger
thermistor
Clip
(R11268)
(R19787)
(a)
(b)
(c)
(R19788)
Electrical box
(R19789)

PCBs / Swing Motor Si041257EC
8Removal Procedure
4. 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 control PCB.
1 Remove the screw of
the terminal board.
2
3
4
5
Release the earth/
ground wire and the
indoor heat exchanger
thermistor lead wire
from the groove.
Pull out the control PCB
from the electrical box.
Disconnect the
connector for the
display/signal receiver
PCB ([CN_DB] or
[S26]).
Remove the control
PCB.
(R19790)
Terminal board
(R23396)
Control PCB
Groove
Indoor heat
exchanger
thermistor lead
wire
Earth/ground
wire
Connector for display/signal
receiver PCB