Daikin ARM24MV2S User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
6.0/7.1 kW Class
24000/28000 Btu/h Class
Outdoor Unit
Non-Inverter
Pair Type
Si011359EA

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only
ARM24MV2S
RM24NV2S
RM28NV2S
RM60JV14
RM71JV14
RM60KV1V
RN60JV1G

Si011359EA
Removal Procedure 1
Table of Contents
1. Outer Panels ...........................................................................................2
2. Outdoor Fan / Fan Motor.........................................................................6
3. Electrical Component ASSY ...................................................................8
4. Sound Blankets .....................................................................................11
5. Compressor ASSY ................................................................................12
Note: The illustrations may be slightly different depending on the model.

Outer Panels Si011359EA
2Removal Procedure
1. Outer Panels
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 8 screws
of the top panel.
2 Pull the suction grille to
unfasten the 3 hooks.
3 Lift up and remove the
top panel.
Top panel
(R5423)
(R5424)
Suction
grille
(R19345)
Hook
(R5426)

Si011359EA Outer Panels
Removal Procedure 3
4 Unfasten the 3 hooks
with a flat screwdriver
and remove the suction
grille.
5 Remove the screw and
remove the front panel
(2).
When reassembling, fit the 5
hooks.
6 Remove the screw and
remove the piping cover
(front).
When reassembling, fit the 3
hooks.
Step Procedure Points
Hook
(R5427)
Front
panel
(2)
(R12807)
(R12808)
Piping cover
(front)
Hook Hook
(R13234)

Outer Panels Si011359EA
4Removal Procedure
7 Remove the 6 screws
and remove the front
panel (1).
Step Procedure Points
Front panel (1)
(R12810)
(R17188)
(R8322)

Si011359EA Outer Panels
Removal Procedure 5
8 Remove the 9 screws
and remove the right
side panel.
When reassembling, fit the 2
hooks.
Step Procedure Points
Right side
panel
(R15402)
(R19346)
Hook
(R5442)

Outdoor Fan / Fan Motor Si011359EA
6Removal Procedure
2. Outdoor Fan / 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 Disconnect the relay
connector for the fan
motor.
2 Unfasten the hook with
a flat screwdriver.
3 Unfasten the 2 hooks
and release the fan
motor lead wire from
the partition plate.
Put the fan motor lead wire
through the back of the fan
motor when reassembling so
as not to be entangled with
the outdoor fan.
(R19298)
Hook
(R5436)
(R20870)
Partition plate
Hook
(R3249)
Lead wire Outdoor fan

Si011359EA Outdoor Fan / Fan Motor
Removal Procedure 7
4 Remove the nut and
remove the outdoor fan.
Nut size: M8
When reassembling, align
the mark of the outdoor
fan with the D-cut section of
the motor shaft.
5 Remove the 4 screws
and remove the fan
motor.
Be sure to remove the lower
screws first. If the upper
screws are removed first, the
fan motor may tilt or fall
because the center of its
gravity is toward the front.
It may cause injuries.
Screw size: M5 × 16
Step Procedure Points
Nut
(R19285)
(R19286)
13 mm
(0.51 inch)
(R12834)
D-cut
(R5439)

Electrical Component ASSY Si011359EA
8Removal Procedure
3. Electrical Component ASSY
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Step Procedure Points
1 Detach the outdoor
temperature sensor.
Remove the sensor fixing
plate.
2 Disconnect the
terminals of the outdoor
temperature thermostat
(S1T).
K1M: magnetic contactor
(R12813)
Outdoor
temperature
sensor
(R12814)
(R17451)
(R19299)
Outdoor
temperature
thermostat
(S1T)
to fan motor: orange
to fan motor: black
(R20871)
L
H
C
to K1M (5): white

Si011359EA Electrical Component ASSY
Removal Procedure 9
3 Remove the left screw
and slide the outdoor
temperature thermostat
to the left to remove it.
If it is difficult to remove the
outdoor temperature
thermostat, loosen the right
screw.
4 Disconnect the
terminals from the
compressor capacitor
(C1R).
X1M: terminal board
Compressor lead wire
Pattern 1
Pattern 2
S: yellow
C: blue
R: red
5 Remove the 2 clamps
on the rear side.
6 Disconnect the blue
terminal from the
magnetic contactor
K1M (1).
Step Procedure Points
(R19288)
(R20872)
to X1M (3):
black
to fan motor:
red
to fan motor:
white
to compressor
(R terminal): red
to compressor
(S terminal): yellow
(R20873)
S
R
C
(R20874)
S
C
R
(R19292)
to compressor
Clamp
(R20875)
to compressor
(C terminal):
blue

Electrical Component ASSY Si011359EA
10 Removal Procedure
7 Lift the electrical
component ASSY to
unfasten the 2 hooks
and remove it.
When reassembling,
connect the wirings to the
correct position.
Step Procedure Points
(R20876)
Electrical
component ASSY
to X1M (1): red (fuse)
to V1R (3): black
to V1R (4): black
to outdoor temperature
thermostat (C): white
to X1M (1): red
(R20877)
Magnetic contactor (K1M)
to K1M (6): red (fuse)
to V1R (2): white
to K1M (2): red
Terminal board (X1M)
Earth / ground wire:
green / yellow
to C1R (C): black
to V1R (1): white
(R20878)
to X1M (2): white to X1M (3): white
to K1M (A1): black
Rectifier (V1R)
to K1M (A2): black
(R20879)

Si011359EA Sound Blankets
Removal Procedure 11
4. Sound Blankets
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 sound
blanket (top).
Remove the sound
blanket (body).
Since the piping ports on the
sound blanket are torn
easily, remove the sound
blanket carefully.
Sound blanket (body)
(R19300)
Sound blanket (top)

Compressor ASSY Si011359EA
12 Removal Procedure
5. Compressor ASSY
Warning Be sure to wait for 10 minutes or more after turning off all power supplies before
disassembling work.
Be careful not to get yourself burnt with the pipes and other parts that are heated by
the gas brazing machine.
If the refrigerant gas leaks during work, ventilate the room. (If the refrigerant gas is
exposed to flames, toxic gas may be generated.)
Since it may happen that the refrigerant oil in the compressor catches fire, prepare wet
cloth so as to extinguish fire immediately.
Caution From the viewpoint of global environment protection, do not discharge the refrigerant
gas in the atmosphere. Make sure to collect all the refrigerant gas.
Restore the piping by non-oxidation brazing.
Note Before working, make sure that the refrigerant gas is empty in the circuit.
Be sure to apply nitrogen replacement when heating up the brazed part.
Do not use a metal saw for cutting pipes by all means because the sawdust comes into
the circuit.
When withdrawing the pipes, be careful not to pinch them firmly with pliers. The pipes
may get deformed.
Provide a protective sheet or a steel plate so that the brazing flame cannot influence
peripheries.
Be careful so as not to burn the compressor terminals, the name plate, the outdoor
heat exchanger fin.
In case of difficulty with gas brazing machine.
1. Disconnect the brazed part where is easy to disconnect and restore.
2. Cut pipes on the main unit with a tube cutter in order to make it easy to disconnect.
Step Procedure Points
1 Remove the terminal
cover.
The shape of the terminal
cover varies depending on
the model.
Terminal cover
(R5455)(R5455)
Terminal
cover
fixture
(R5456)

Si011359EA Compressor ASSY
Removal Procedure 13
2 Disconnect the
compressor lead wires.
Be careful so as not to burn
the compressor terminals or
the name plate.
Pattern 1
Pattern 2
S: yellow
C: blue
R: red
3 Remove the gasket.
4 Remove the 4 nuts of
the compressor.
Step Procedure Points
Yellow (S)
Blue (C)
Red (R)
(R5457)
(R20873)
S
R
C
(R20874)
S
C
R
Gasket
(R5458)
(R12888)

Compressor ASSY Si011359EA
14 Removal Procedure
5 Heat up the brazed part
of the discharge side
pipe and disconnect it.
6
7
Heat up the brazed part
of the suction side pipe
and disconnect it.
Lift the compressor
ASSY up and remove it.
Step Procedure Points
(R20880)
Brazed part of
the discharge
side pipe
Brazed part of
the suction
side pipe
Compressor
ASSY
(R20881)

Revision History
Month / Year Version Revised contents
08 / 2013 Si011359E First edition
09 / 2014 Si011359EA Model addition: ARM24MV2S, RM24/28NV2S, RM60/71JV14, RM60KV1V

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 September 2014 but subject to change without notice. Si011359EA
09/2014 AK.B