Daikin R18NUV2S User manual

REMOVAL
PROCEDURE
SERVICE MANUAL
Outdoor Unit
Non-Inverter
Pair Type
2/2.8 HP Class
Si241319

Service Manual
Removal Procedure
Outdoor Unit
Applicable Models
zCooling Only
R18NUV2S
R24NUV2S

Si241319
Removal Procedure 1
Table of Contents
1. Procedure to Remove Outside Panels....................................................2
2. Procedure to Remove Propeller Fan and Fan Motor ..............................3
3. Procedure to Remove El. Compo Box ....................................................4
4. Procedure to Remove Compressor.........................................................5

Procedure to Remove Outside Panels Si241319
2Removal Procedure
1. Procedure to Remove Outside Panels
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1Pull the lower part (7
positions). To remove
Stop valve cover assy,
dismount one screw,
and pull down the
panel.
2To remove the top
panel, dismount 4
screws.
3Dismount 1 screw to
remove suction grille to
your side and, then pull
up the entire grille to
remove it.
4To remove the
discharge grille,
dismount 4 screws.
5To remove the front
panel, dismount 6
screws.
6Dismount 1 screw to
remove the right side
panel.
Discharge grille
Top panel
Suction grille
Right side panel
Stop valve cover assy
Front panel

Si241319 Procedure to Remove Propeller Fan and Fan Motor
Removal Procedure 3
2. Procedure to Remove Propeller Fan and Fan
Motor
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
Removing top panel and
front panel according to
the “Procedure to
Remove Outside Panels”.
1. Removing propeller fan
1Dismount 4 screws
fixing discharge grille
and disengage 4 hooks
located at upper and
lower sides of the grille
to remove the grille.
2Remove fan stopper
and washer faced nut
fixing propeller fan.
2. Removing the fan motor
1Disconnect the
connector for fan motor
from the el. compo.
box.
Do not pull the lead wire but
hold the connector and press
the hook section when
disconnect the connector.
Precautions for installing
motor
Be sure to fix the motor lead
wire with clamps, or the lead
wire could be caught with fan
resulting damage of parts.
2Pull out the fastening
terminal from Capacitor
(C1R).
3The lead wires are
clamped at 3 locations.
4Fan motor can be
removed by removing 4
fixing bolts.
Propeller fan
Washer faced
Hook
Fan motor
Clamps
Screws
Capacitor
(C1R)
Lead wire Propeller fan

Procedure to Remove El. Compo Box Si241319
4Removal Procedure
3. Procedure to Remove El. Compo Box
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
Removing top panel and
front panel according to
the “Procedure to
Remove Outside Panels”.
1Remove following
connectors, fastening
terminal from
compressor, fan motor
terminals.
2Dismount 1 screw fixing
the el. compo box.
3To remove the el.
compo box frontward
before slide the left side
upward.
El. Compo Box
El. Compo Box
Fixing
screws

Si241319 Procedure to Remove Compressor
Removal Procedure 5
4. Procedure to Remove Compressor
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
Removing top panel and
front panel according to
the “Procedure to
Remove Outside Panels”.
Check that the refrigerant is
completely discharged
before starting the
disassembling work.
Color of terminal end
R18 • 24NUV2S
1 of compressor fixing nuts
is outside of the partition
plate.
1To remove the terminal
cover, press the
protruded section on
both right and left sides.
2Disconnect the lead
wires from the
terminals.
3Dismount the 3 nuts
fixing the compressor.
4Disconnect 3 brazed
joints.
5Lift and take out the
compressor.
Compressor
fixing nut
Stop valve
mounting plate
Brazed joints
(3 joints)
(S)
YLW
(C)
BLU
(R)
RED

Revision History
Month / Year Version Revised contents
01/2013 Si241319 First edition

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Kita-ku, Osaka, 530-8323 Japan
Tokyo Office:
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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.
Organization:
DAIKIN INDUSTRIES, LTD.
AIR CONDITIONING MANUFACTURING DIVISION
Scope of Registration:
THE DESIGN/DEVELOPMENT AND MANUFACTURE OF
COMMERCIAL AIR CONDITIONING, HEATING, COOLING,
REFRIGERATING EQUIPMENT, HEATING EQUIPMENT,
RESIDENTIAL AIR CONDITIONING EQUIPMENT, HEAT
RECLAIM VENTILATION, AIR CLEANING EQUIPMENT,
COMPRESSORS AND VALVES.
Organization:
DAIKIN INDUSTRIES
(THAILAND) LTD.
Scope of Registration:
THE DESIGN/DEVELOPMENT
AND MANUFACTURE OF AIR
CONDITIONERS AND THE
COMPONENTS INCLUDING
COMPRESSORS USED FOR THEM
All of the Daikin Group’s business
facilities and subsidiaries in Japan
are certified under the ISO 14001
international standard for
environment management.
JMI-0107 JQA-1452
Dealer
z
Specifications, designs and other content appearing in this brochure are current as of January 2013 but subject to change without notice.
Si241319
01/2013 AK