Daikin RE25JV1 User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
2.5/3.5 kW Class
Outdoor Unit
Non-Inverter
Pair Type
Si01-752

Service Manual
Removal Procedure
Outdoor Unit
zCooling Only
RE25JV1
RE35JV1

Si01-752
Removal Procedure 1
Table of Contents
1. Removal of Outer Panels ........................................................................2
2. Removal of Bellmouth .............................................................................4
3. Removal of Electrical Components ASSY ..............................................5
4. Removal of Outdoor Fan / Fan Motor .....................................................6
5. Removal of Sound Blanket......................................................................8
6. Removal of Partition Plate.......................................................................9
7. Removal of Compressor .......................................................................10
Note: The illustrations may be slightly different depending on the model.

Removal of Outer Panels Si01-752
2Removal Procedure
1. Removal of Outer Panels
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Remove the screw and
remove the stop valve
cover.
As the stop valve cover has
3 hooks, slide the cover
downward to remove.
2The top panel and the
front panel are
constructed in a
monoblock.
Remove the 3 screws
at the right side and the
2 screws at the front
side.
3Remove the 3 screws
at the left side.
Hook
(R1847)
Stop valve
cover
(R12889)
Stop valve
(liquid)
Stop valve (gas)
(R1849)
(R12820)

Si01-752 Removal of Outer Panels
Removal Procedure 3
4Remove the screw at
the rear of the top
panel. Once lift the
panel ASSY and then
remove it forward.
The left side plate and the
bellmouth can be removed
all at once.
When restoring the panel
ASSY, move it horizontally
and get it down for the easy
work.
5Remove the screw and
remove the left side
panel.
Sectional view
Step Procedure Points
Screw
(R1851)
Screw
Left side panel
(R12821)
Top panel
(R1853)
Left side
panel

Removal of Bellmouth Si01-752
4Removal Procedure
2. Removal of Bellmouth
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1The bellmouth is
attached with 2 screws
and 4 hooks.
2Remove the 2 screws
and slide the bellmouth
in the arrow direction to
disengage the hook B.
Remove the bellmouth.
Hook A
Hook B
Screw
(R1854)
(R12796)
Hook B

Si01-752 Removal of Electrical Components ASSY
Removal Procedure 5
3. Removal of Electrical Components ASSY
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. Remove the drip proof
plate.
1Remove the 3 screws
of the drip proof plate.
2Remove the drip proof
plate.
2. Remove the electrical
components ASSY.
1Disconnect all the
harnesses.
2Remove the 2 screws
of electrical
components ASSY.
3Remove the electrical
components ASSY.
(R1857)
(R1858)
(R1859)

Removal of Outdoor Fan / Fan Motor Si01-752
6Removal Procedure
4. Removal of Outdoor Fan / Fan Motor
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Disconnect the 3
terminals of the fan
motor lead wire.
(2 from the fan motor
capacitor, 1 from the
magnetic contactor)
Nut size: M6
When reassembling, align
the mark of the outdoor
fan with the D-cut section of
the motor shaft.
The fan motor should be
restored so that the mark z
will be at upper side.
2Remove the nut and
remove the outdoor fan.
3
4
Open the 2 hooks and
release the fan motor
lead wire.
Remove the 2 screws
of the fan motor.
Fan motor
lead wire: black
Fan motor capacitorRedWhiteBlack
Fan motor
lead wire
Magnetic
contactor
A
View from A
(R12890)
10 mm
(R12236)
(R1861)
TMark
(R12797)
D cut
zMark
(R12798)
Hoo
k

Si01-752 Removal of Outdoor Fan / Fan Motor
Removal Procedure 7
5Remove the fan motor.
Step Procedure Points
(R12799)

Removal of Sound Blanket Si01-752
8Removal Procedure
5. Removal of Sound Blanket
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. Remove the right side
panel.
1Remove the 3 screws
of the right side panel.
2Lift up and remove the
right side panel.
When reassembling, fit the 3
hooks.
2. Remove the sound
blanket.
Since the piping ports are
torn easily, remove the
sound blanket carefully.
When restoring, the sound
blanket should pass the
internal side of the piping.
Some models also have a
sound blanket (top).
1Untie the string and
open the sound blanket
(body).
2Pull out the sound
blanket (body).
(R12822)
(R12823)
Hook
Hook
(R12824)
Sound blanket (body)
(R12837)

Si01-752 Removal of Partition Plate
Removal Procedure 9
6. Removal of Partition Plate
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1Disengage the
compressor lead wires
from the wire clip.
2Remove the 2 screws
of the partition plate.
3Pull and remove the
partition plate.
4When restoring the
partition plate, put the
hook into the bottom
frame.
(R12800)
Compressor lead wire
Wire clip
(R1871)
(R12801)
(R1873)
Bottom
frame
Hook

Removal of Compressor Si01-752
10 Removal Procedure
7. Removal of Compressor
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Before working, make
sure that the refrigerant is
empty in the circuit.
Be sure to apply nitrogen
replacement when
heating up the brazed
part.
Warning
Be careful not to get yourself
burnt with the pipes and other
parts that are heated by the
gas brazing machine.
Warning
If the refrigerant gas leaks
during work, ventilate the
room. (If the refrigerant gas is
exposed to flames, toxic gas
may be generated.)
Warning
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.
Cautions for restoration
1. Restore the piping by non-
oxidation brazing.
2. It is required to prevent the
carbonization of the oil inside
the four way valve and the
deterioration of the gaskets
affected by heat. (Keep
below 120°C.) For the sake
of this, wrap the four way
valve with wet cloth and
provide water so that the
cloth does not dry.
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.
1Remove the terminal
cover and the partition
plate.
2Disconnect the
compressor lead wires.
3Remove the 3 nuts of
the compressor.
Lead wires for
the compressor
(R12803)
Partition
plate
Terminal cover
Red
Blue
Yellow
(R12802)

Si01-752 Removal of Compressor
Removal Procedure 11
4Heat up the brazed part
of the discharge side
and disconnect.
Note:
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 heat
exchanger fin.
5Heat up the brazed part
of the suction side and
disconnect.
6Lift the compressor up
and remove it.
Step Procedure Points
(R1876)
Protective
sheet or
steel plate

Revision History
Month / Year Version Revised contents
07 / 2013 Si01-752 First edition

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/global_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
z
Specifications, designs and other content appearing in this brochure are current as of July 2013 but subject to change without notice.
Si01-752
07/2013 AK.B