Daikin ATKM50QRV16 User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter
Wall Mounted Type
5.0/6.0/7.1 kW Class
Si041403EB

Service Manual
Removal Procedure
Indoor Unit
zCooling Only
ATKM50QRV16 DTKM50QRV16 FTHP50RRV16
ATKM60QRV16 DTKM60QRV16
FTKM50PRV16
ATKM50RRV16 DTKM50RRV16 FTKM60PRV16
ATKM60RRV16 DTKM60RRV16 FTKM71PRV16
ATKP50QRV16 DTKP50QRV16 FTKM50QRV16
ATKP60QRV16 DTKP60QRV16 FTKM60QRV16
ATKP71QRV16 DTKP71QRV16 FTKM71QRV16
ATKP50RRV16 DTKP50RRV16 FTKM50RRV16
ATKP60RRV16 DTKP60RRV16 FTKM60RRV16
ATKP71RRV16 DTKP71RRV16
FTKP50PRV16
FTKP60PRV16
FTKP50QRV16
FTKP60QRV16
FTKP71QRV16
FTKP50RRV16
FTKP60RRV16
FTKP71RRV16

Si041403EB
Removal Procedure 1
Table of Contents
1. Air Filters / Front Panel ...........................................................................2
2. Horizontal Blade......................................................................................4
3. Front Grille ..............................................................................................5
4. Electrical Box ..........................................................................................6
5. PCBs .......................................................................................................8
6. Drain Pan / Swing Motors / Vertical Blade ASSYs................................11
7. Indoor Heat Exchanger .........................................................................14
8. Fan Rotor / Fan Motor...........................................................................16
Note: The illustrations may be slightly different depending on the model.

Air Filters / Front Panel Si041403EB
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. The 2 filters are
interchangeable.
When reassembling, 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
bottom hooks when
reassembling the air filter.
1 Open the front panel to
the position where it
stops.
2
3
Unfasten the 2 hooks,
pull out the air filter
downward and remove
it.
Remove the other air
filter in the same way.
4 Unfasten the 4 hooks
and remove the
optional filter ASSY.
5 Unfasten the 5 hooks
and remove the
optional filter.
Front panel
(R20135)
(R20136)
Air filter
Hook
(R20137)
Hook
Hook
Optional
filter ASSY
Optional filter
Hook
Hook
(R23478)

Si041403EB Air Filters / Front Panel
Removal Procedure 3
2. Remove the front panel.
1 Open the front panel
over the position where
it stops.
2 Slide the left shaft to the
right and release it.
When reassembling the front
panel, fit the right and left
shafts one by one into the
grooves and fully push them
into position.
3
4
Release the right shaft
in the same way.
Remove the front panel.
Step Procedure Points
(R20139)
(R23479)
Left shaft
(R23480)
Right shaft

Horizontal Blade Si041403EB
4Removal Procedure
2. Horizontal Blade
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 2 center
shafts of the horizontal
blade.
2 Release the left shaft.
3 Release the right shaft
and remove the
horizontal blade.
(R19775)
Horizontal blade
(R19776)
(R20142)

Si041403EB Front Grille
Removal Procedure 5
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 5 screws
of the front grille.
2 Unfasten the 3 hooks
on the top of the front
grille.
The convex marks (...) on
the front panel indicate the
position of the hooks.
3 Remove the front grille. When reassembling, make
sure that all the 3 hooks are
fastened.
Front grille
(R20143)
Hook
(R20144)
(R19780)
(R20145)

Electrical Box Si041403EB
6Removal Procedure
4. 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 screw, and
then the wire fixture.
Remove the 4 screws
on the terminal board
and disconnect the
connecting wire.
4
5
Remove the screw and
release the earth/
ground wire.
Pull out the indoor heat
exchanger thermistor.
Be careful not to lose the clip
of the thermistor.
Service
cover
(R20146)
(R20147)
Terminal board Wire fixture
Connecting
wire
Indoor heat
exchanger
thermistor
Earth/ground wire
(R23481)
Clip
(R11268)

Si041403EB Electrical Box
Removal Procedure 7
6 Disconnect the 4
connectors.
[S1]: fan motor
[S6]: swing motor (horizontal
blade)
[S7]: fan motor (Hall IC)
[S8]: swing motor (vertical
blade)
DC fan motor models do not
have harness for [S7].
7 Release the harnesses
from the 4 hooks.
8 Remove the screw of
the electrical box.
9 Lift up and remove the
electrical box from the
bottom frame.
When reassembling, fasten
the 2 hooks at the back of
the electrical box.
Step Procedure Points
(R20149)
[S1]
[S6]
[S7]
[S8]
(R20150)
Hook
Hook
Electrical box
(R20151)
(R20152)
Hook
Bottom frame

PCBs Si041403EB
8Removal Procedure
5. PCBs
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 display/
signal receiver PCB.
1 Unfasten the 2 bottom
hooks and remove the
signal receiver unit.
2 Release the harnesses
from the 3 hooks.
3 Unfasten the 3 hooks
on the back and
remove the display/
signal receiver PCB.
Hook (R20153)
Signal receiver
unit
Hook
(R23574)
Right view
Hook
Hook
(R23482)
Display/signal
receiver PCB
Back view

Si041403EB PCBs
Removal Procedure 9
4
5
Release the harness
from the 4 hooks.
Disconnect the
connector [S27].
[S27]: control PCB
2. Remove the
INTELLIGENT EYE
sensor PCB.
[S36]: control PCB
Some models do not have
INTELLIGENT EYE sensor.
When reassembling, put the
harness for [S27] and [S36]
on the 4 hooks.
1
2
Remove the
INTELLIGENT EYE
sealing material.
Disconnect the
connector [S36].
3 Unfasten the 3 hooks
and remove the
INTELLIGENT EYE
sensor PCB.
3. Remove the control PCB.
1 Unfasten the hook from
the right side of the
electrical box.
Step Procedure Points
(R20156)
[S27]
Hook
Hook
(R23575)
INTELLIGENT
EYE sealing
material
[S36]
(R22590)
Hook
Hook
Hook
Hook
INTELLIGENT
EYE sensor
PCB
(R20158)
(R20159)
Hook

PCBs Si041403EB
10 Removal Procedure
2 Unfasten the 2 hooks
and remove the shield
plate.
3
4
Disconnect the
connector [S2] for the
terminal board.
Pull out the harness for
the indoor heat
exchanger thermistor
from the hole.
Some models have
[H1][H2][H3] instead of [S2].
In case of [H1][H2][H3],
disconnect the terminals
from the terminal board.
Terminal board
1: black, back
2: white, back
3: red, back
5 Unfasten the 4 hooks
and remove the control
PCB.
Step Procedure Points
Shield plate (R23576)
Hook
Left view
[S2]
Harness for
the indoor
heat exchanger
thermistor
(R20161)
Control PCB
Hook
Hook
(R20162)

Si041403EB Drain Pan / Swing Motors / Vertical Blade ASSYs
Removal Procedure 11
6. Drain Pan / Swing Motors / 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 drain pan. Insertion of a wooden base
facilitates the removing
work.
Place a plastic sheet around
the drain pan to prevent
wetting the floor with the
remaining drain.
If the drain hose is
embedded in the wall,
disconnect the drain hose
beforehand.
Carry out the removal work
with 2 wrenches.
When the pipings are
disconnected, protect the
openings of both the pipes
and the indoor unit from
moisture intrusion.
1
2
Pull out the drain hose.
Unscrew the flare nuts
for gas piping and liquid
piping.
3
4
Remove the 2 screws.
Detach the indoor unit
from the installation
plate.
5 Remove the screw on
the back.
6 Unfasten the hook and
remove the drain pan
ASSY.
Gas piping
Drain hose
(R20163)
(R20164)
Back view
(R20165)
Hook
Drain pan ASSY
(R20166)

Drain Pan / Swing Motors / Vertical Blade ASSYs Si041403EB
12 Removal Procedure
2. Remove the swing
motors.
1 Remove the screw, and
then the swing motor
for horizontal blade.
2 Remove the 2 screws
of the cover link ASSY.
3 Remove the 2 screws
of the swing motor for
vertical blade.
4
5
Cut the clamp.
Remove the swing
motor for vertical blade.
Step Procedure Points
Swing motor for horizontal blade
(R23483)
Right view
(R23484)
Cover link ASSY
(R20169)
Swing motor for
vertical blade
Cover link ASSY
Clamp
(R23485)

Si041403EB Drain Pan / Swing Motors / Vertical Blade ASSYs
Removal Procedure 13
3. Remove the vertical blade
ASSY.
1 Remove the cover link.
2 Unfasten all the 5
hooks of each vertical
blade ASSY on the
bottom of the drain pan
ASSY.
3 Pull out the vertical
blade ASSYs.
The vertical blade ASSYs
are interlinked.
Step Procedure Points
(R20171)
Cover link
Back view
Hook (R20172)
Vertical blade ASSY
(R23486)

Indoor Heat Exchanger Si041403EB
14 Removal Procedure
7. 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
1
2
Pull out the drain hose.
Unscrew the flare nuts
for gas piping and liquid
piping.
Indoor heat exchanger can
be removed without
removing the drain pan.
Insertion of a wooden base
facilitates the removing
work.
Place a plastic sheet around
the drain pan to prevent
wetting the floor with the
remaining drain.
If the drain hose is
embedded in the wall,
disconnect the drain hose
beforehand.
Carry out the removal work
with 2 wrenches.
When the pipings are
disconnected, protect the
openings of both the pipes
and the indoor unit from
moisture intrusion.
3
4
Remove the 2 screws.
Detach the indoor unit
from the installation
plate.
5 Slightly pull out the
auxiliary piping.
Gas piping
Drain hose
(R20163)
(R20164)
(R20174)
Auxiliary piping

Si041403EB Indoor Heat Exchanger
Removal Procedure 15
6 Remove the screw on
the left side.
7
8
Remove the screw on
the right side.
Push the hook on the
right side and unfasten
it.
When reassembling, fasten
the hook of the indoor heat
exchanger.
9 Lift up and remove the
indoor heat exchanger.
Step Procedure Points
(R20175)
(R20176)
Hook
(R20177)
Indoor heat exchanger

Fan Rotor / Fan Motor Si041403EB
16 Removal Procedure
8. Fan Rotor / Fan 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 2 screws,
and then the right side
plate.
2 Loosen the screw of the
fan rotor.
When reassembling the fan
motor and the fan rotor,
provide as much as 5 mm
(0.2 inch) of play between
the side face of the rotor and
the bottom frame.
(1) Insert the fan motor allowing
for approx. 5 mm (0.2 inch)
of play.
(2) Tighten the fan rotor screw
until it stops. Then give the
screw one more turn.
(3) If the fan rotor rotates
appropriately, tighten the
screw completely.
(4) If not, repeat the procedure
from (1).
3 Remove the fan rotor
from the left groove.
4 Remove the fan motor.
Right side plate (R20178)
(R19802)
Fan rotor
5 mm (0.2 inch)
Side face of rotor
(R18879)
Side face of
bottom frame
(R9582)
(R19333)
(R19334)
Fan motor

Revision History
Month / Year Version Revised contents
04 / 2014 Si041403E First edition
11 / 2015 Si041403EA Model addition: FTKM50/60/71QRV16, FTKP50/60/71QRV16
06 / 2016 Si041403EB Model addition: ATKM50/60QRV16, ATKM50/60RRV16, ATKP50/60/71QRV16,
ATKP50/60/71RRV16, DTKM50/60QRV16, DTKM50/60RRV16,
DTKP50/60/71QRV16, DTKP50/60/71RRV16, FTHP50RRV16,
FTKM50/60RRV16, FTKP50/60/71RRV16

Head Office:
Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,
Kita-ku, Osaka, 530-8323 Japan
Tokyo Office:
JR Shinagawa East Bldg., 2-18-1, Konan,
Minato-ku, Tokyo, 108-0075 Japan
http://www.daikin.com/products/ac/
All rights reserved
c
Warning
zDaikin products are manufactured for export to numerous countries throughout the world. Prior to
purchase, please confirm with your local authorised importer, distributor and/or retailer whether this
product conforms to the applicable standards, and is suitable for use, in the region where the product
will be used. This statement does not purport to exclude, restrict or modify the application of any local
legislation.
zAsk a qualified installer or contractor to install this product. Do not try to install the product yourself.
Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion.
zUse only those parts and accessories supplied or specified by Daikin. Ask a qualified installer or
contractor to install those parts and accessories. Use of unauthorised parts and accessories or
improper installation of parts and accessories can result in water or refrigerant leakage, electrical
shock, fire or explosion.
zRead the user's manual carefully before using this product. The user's manual provides important
safety instructions and warnings. Be sure to follow these instructions and warnings.
If you have any enquiries, please contact your local importer, distributor and/or retailer.
Cautions on product corrosion
1. Air conditioners should not be installed in areas where corrosive gases, such as acid gas or alkaline gas, are produced.
2. If the outdoor unit is to be installed close to the sea shore, direct exposure to the sea breeze should be avoided. If you need to install
the outdoor unit close to the sea shore, contact your local distributor.
Dealer
zSpecifications, designs and other content appearing in this brochure are current as of June 2016 but subject to change without notice. Si041403EB
06/2016 AK.B