Daikin ATM18MV2S User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Indoor Unit
Inverter / Non-Inverter
Wall Mounted Type
5.0/6.0/7.1 kW Class
15000/18000 Btu/h Class
Si041254EE
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Service Manual
Removal Procedure
Indoor Unit
zCooling Only zHeat Pump
ATM18MV2S FTX50GV1B
FTX60GV1B
FTE50KV19 FTX71GV1B
FTE60KV19
FTXD50FVMV
FTM15NV2S FTXD60FVMV
FTM18NV2S FTXD71FVMV
FTM50JV14 FTXD50HVMV
FTXD60HVMV
FTM50KV1V FTXD71HVMV
FTN50JV1G FTXS50FVMV
FTN50JV1G9 FTXS60FVMV
FTXS71FVMV
FTNE50LV1
FTNE60LV1 FTXS50GVMV
FTNE50MV1 FTXS60GVMV
FTNE60MV1 FTXS71GVMV
FTNE50MV14
FTNE60MV14 FTXS50KVM
FTNE50MV18 FTXS60KVM
FTNE60MV18 FTXS71KVM
FTNE50MV1V
FTNE60MV1V
FTKS50FVM
FTKS60FVM
FTKS71FVM
FTKS50FVMV
FTKS60FVMV
FTKS71FVMV
FTKS50KVM
FTKS60KVM
FTKS71KVM
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Si041254EE
Removal Procedure 1
Table of Contents
1. Air Filters .................................................................................................2
2. Front Panel..............................................................................................3
3. Front Grille ..............................................................................................4
4. Horizontal Blades ....................................................................................5
5. Vertical Blade ASSYs..............................................................................6
6. Electrical Box ..........................................................................................8
7. PCBs .....................................................................................................10
8. Swing Motors ........................................................................................12
9. Indoor Heat Exchanger .........................................................................13
10.Fan Motor / Fan Rotor...........................................................................15
Note: The illustrations may be slightly different depending on the model.
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Air Filters Si041254EE
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
2
3
Open the front panel.
Release each air filter
from the 2 hooks of the
front panel.
Remove the air filter by
pulling out downward.
The air filter is not marked
for difference between the
right and left sides.
Insert the air filter with the
“FRONT” mark faced up.
When reassembling, insert
the air filter along the guides.
Be sure to fasten the hooks
when installing the air filter.
4 Remove the Titanium
apatite photocatalytic
air-purifying filter, if
available, from the 5
hooks.
The right and left filters are
interchangeable.
Some models have no
Titanium apatite
photocatalytic air-purifying
filter.
Air filter
Hook (R21150)
Front panel
Hook
Hook
(R23427)
Titanium apatite
photocatalytic
air-purifying filter
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Si041254EE 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 Open the front panel
over the position where
it stops.
2 Slide the front panel 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.
3
4
Release the right shaft
in the same way.
Remove the front panel.
(R23428)
Front panel
(R2754)
(R2755)
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Front Grille Si041254EE
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.
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.
When reassembling, make
sure that the 3 hooks are
securely fastened.
3 Pull the upper part of
the front grille out and
lift the lower part up,
and then remove the
front grille.
(R2758)
Front grille
(R17741)
(R15467)
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Si041254EE 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
2
Bend the horizontal
blade (lower) slightly
and release the 2
center shafts.
Release the left shaft.
When reassembling, mount
the large horizontal blade to
the upper position and the
small horizontal blade to the
lower position.
3
4
Slide the horizontal
blade (lower) to the left
and release the right
shaft.
Remove the horizontal
blade (upper) in the
same way.
Installation 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.
Left shaft
(R21152)
Center shaft
Horizontal blade
(upper)
Horizontal blade
(lower)
Right shaft
(R2766)
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Vertical Blade ASSYs Si041254EE
6Removal Procedure
5. 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. For auto-swing (right and
left) models
Some models have fan
guards. Remove the fan
guards beforehand.
The unit has 3 sets of
vertical blade ASSYs linked
to one another with interlock
rods.
1 Release the right and
left shafts.
2 Unfasten the 3 hooks
for each set of vertical
blade ASSY (9 hooks).
3 Pull the vertical blade
ASSYs to the right and
remove them.
Vertical blade ASSY
(R21153)
Interlock rod
Hook
(R2768)
(R6706)
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Si041254EE Vertical Blade ASSYs
Removal Procedure 7
2. For models without auto-
swing (right and left)
Each vertical blade ASSY
has 5 or 6 fins which can not
be replaced individually.
The vertical blade ASSY is
not marked for difference
between right and left.
1 Unfasten the hooks at
the upper 2 positions.
2
3
4
Unfasten the 3 hooks of
the vertical blade ASSY
by pressing them with a
flat screwdriver.
Remove the vertical
blade ASSY.
Remove the other
vertical blade ASSY in
the same way.
Step Procedure Points
(R18194)
Vertical blade ASSY
Hook
(R8022)
Hook
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Electrical Box Si041254EE
8Removal Procedure
6. 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,
then the drip proof
plate.
2 Cut the clamp.
3
4
5
6
Pull out the indoor heat
exchanger thermistor.
Remove the screw of
the earth/ground wire.
Remove the screw of
the wire fixture.
Remove the 4 screws
of the connecting wires.
The position of the indoor
heat exchanger thermistor
varies depending on the
model.
Be careful not to lose the clip
of the thermistor.
Drip proof plate
(R2771)
(R6707)
Indoor heat exchanger thermistor
Earth/ground wire
(R19204)
Connecting
wire
Wire fixture
Clip
(R11234)
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Si041254EE Electrical Box
Removal Procedure 9
7 Disconnect the
connector [S1].
[S1]: fan motor
8 Disconnect the
connectors [S6] and
[S8].
[S6]: swing motor for horizontal
blades
[S8]: swing motor for vertical
blades
Some models do not have
the harness for [S8].
9 Remove the screw of
the electrical box.
10
11
Unfasten the hook at
the back of the
electrical box.
Pull out the electrical
box.
When reassembling, make
sure that the hook at the
back of the electrical box is
fastened.
Step Procedure Points
[S1]
(R2774)
(R2775)
[S6]
[S8]
Electrical box
(R3205)
(R17665)
Hook
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PCBs Si041254EE
10 Removal Procedure
7. 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 screw on
the electrical box.
2 Unfasten the hook and
remove the shield plate.
The shield plate also has 2
hooks on the upper side (at
the back).
3 Unfasten the 2 hooks
on the top and remove
the signal receiver unit.
(R17747)
Electrical box
Shield
plate
Hook
(R13224)
(R2781)
Signal receiver
unit
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Si041254EE PCBs
Removal Procedure 11
4 Cut the clamp.
5
6
Unfasten the 8 hooks
and remove each PCB.
Disconnect every
connector from each
PCB.
Some models do not have
INTELLIGENT EYE sensor
PCB.
7 Cut the clamp.
8 Unfasten the 2 hooks
on the lower side, and
then the 2 hooks on the
upper side.
Remove the control
PCB.
Step Procedure Points
(R23374)
Clamp
INTELLIGENT EYE
sensor PCB
Display PCB Signal receiver PCB
Buzzer PCB
Hook
Hook
Hook
(R23375)
(R17913)
Upper hook
Lower hook Control PCB
(R17912)
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Swing Motors Si041254EE
12 Removal Procedure
8. Swing Motors
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 swing motor
for horizontal blades.
1
2
Remove the screw.
Remove the swing
motor.
2. Remove the swing motor
for vertical blades.
Remove the swing shaft.
1 Remove the swing shaft
on the right side.
2 Remove the 2 screws
and detach the swing
motor assembly.
Some models do not have
the swing motor assembly.
3 Remove the 2 screws
and remove the swing
motor.
The swing motor assembly
has 6 hooks.
(R17666)
Swing motor
(R2789)
(1) Unfasten the hook.
(2) Pull out the swing shaft.
(R12896)
Swing motor assembly (R20210)
Hook
Hook Swing motor
(
R2792
)
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Si041254EE Indoor Heat Exchanger
Removal Procedure 13
9. 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 Unscrew the flare nut
for gas piping and liquid
piping and disconnect
both pipes.
Hold the indoor unit up with a
piece of wood.
Place a plastic sheet around
the drain pan to prevent
wetting the floor with
remaining drain.
If the drain hose is
embedded in the wall,
disconnect beforehand.
Carry out the removal works
with 2 wrenches.
2 Detach the indoor unit
from the installation
plate.
When the pipings are
disconnected, protect the
openings of both the pipes
and the indoor unit from
moisture intrusion.
3 Unfasten the hook and
remove the piping
fixture on the back of
the indoor unit.
Liquid piping
Gas piping
(R2796)
(R2797)
Piping
fixture
(R23429)
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Indoor Heat Exchanger Si041254EE
14 Removal Procedure
4 Slightly pull out the
auxiliary piping.
5 Unfasten the 2 hooks
on the left side.
6 Unfasten the 2 hooks
on the right side.
7 Pull the indoor heat
exchanger to the front
side, unfasten the
hooks completely, and
then remove the indoor
heat exchanger.
Step Procedure Points
Auxiliary piping
(R23430)
Hook
(R13231)
Hook
(R13232)
Indoor heat exchanger
(R2802)
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Si041254EE Fan Motor / Fan Rotor
Removal Procedure 15
10.Fan Motor / Fan Rotor
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1
2
Remove the 2 screws.
Lift and remove the
right side plate.
You can remove the fan
rotor without detaching the
right side plate.
3 Remove the screw, and
then the fan motor
fixing plate.
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).
4 Loosen the screw of the
fan rotor.
5 Remove the fan motor.
Right
side
plate
(R16544)
Fan motor fixing plate
(R2805)
5 mm (0.2 inch)
Side face of rotor
(R18879)
Side face of
bottom frame
(R9582)
Fan rotor (R2806)
Fan motor
(R12897)
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Fan Motor / Fan Rotor Si041254EE
16 Removal Procedure
6 Remove the fan rotor.
7 Remove the 2 screws,
and then the left side
plate.
8 Remove the rubber
bearing by pushing
inward.
Step Procedure Points
Fan rotor
(R2809)
Left side plate
(R2810)
(R2811)
Bearing
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Revision History
Month / Year Version Revised contents
09 / 2012 Si041254 First edition
11 / 2012 Si041254_A Model addition: FTX50/60/71GV1B
08 / 2013 Si041254EB Model addition: FTN50JV1G, FTXD50/60/71HVMV
03 / 2014 Si041254EC Model addition: FTN50JV1G9, FTXS50/60/71GVMV
12 / 2014 Si041254ED
Model addition: FTE50/60KV19, ATM18MV2S, FTM15/18NV2S, FTM50KV1V,
FTM50JV14, FTNE50/60LV1, FTNE50/60MV1, FTNE50/60MV14,
FTNE50/60MV1V
05 / 2016 Si041254EE Model addition: FTNE50/60MV18
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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 May 2016 but subject to change without notice. Si041254EE
05/2016 AK.B
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