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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/global_ac/

All rights reserved

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Warning

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Daikin 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.

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Ask 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.

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Use 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.

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Read 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

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Specifications, designs and other content appearing in this brochure are current as of January 2013 but subject to change without notice.

Si241307

01/2013 AK

Summary of Contents for R21NUV1

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Non Inverter Pair Type 2 5 HP Class Si241307 ...

Page 2: ...Service Manual Removal Procedure Outdoor Unit Applicable Models zCooling Only R21NUV1 ...

Page 3: ...Si241307 Removal Procedure 1 Table of Contents 1 Procedure to Remove Outside Panels 2 2 Procedure to Remove El Compo Box 3 3 Procedure to Remove Compressor 6 ...

Page 4: ...ork Step Procedure Points 1 To dismount the top panel remove the 4 mounting screws A 2 To dismount the front panel remove the 6 mounting screws B 3 To dismount the service cover remove the 2 mounting screws 4 To dismount the side panel remove the 6 mounting screws Interconnecting wire terminal Power supply terminal Earth terminal Top panel A Service cover Side panel B Front panel B B A A A B B B C...

Page 5: ...ll power supplies before disassembling work Step Procedure Points 1 Remove the wire harness connectors from the PCB 2 Dismount the outdoor air thermistor and the heat exchanger thermistor Attach to the 3rd row of heat exchanger pipe at 30mm from the left end Route thermistor wire through the specified section to prevent wire pinching Thermistor Thermistor retaining spring ...

Page 6: ...th the flame of welder Also record terminal code ON a memo paper in case the indication becomes illegible Connect the lead wires to the proper fasten terminals S Yellow M Red C Blue 3 Remove the terminal cover 4 Remove the compressor protective device and the 3 terminals together with the mounting plate S yellow M red C blue Blue Yellow Red ...

Page 7: ...Si241307 Procedure to Remove El Compo Box Removal Procedure 5 Step Procedure Points 5 Remove the screw 6 Take off the el compo box ...

Page 8: ... before disassembling work Step Procedure Points Make sure that refrigerant is completely empty in the circuit before disassembling Warning If refrigerant gas leaks during servicing work ventilate the area If refrigerant gas contacts flames hazardous gas can be generate 1 Disconnect the suction pipe and the discharge pipe of the compressor at brazed sections Discharge pipe Suction pipe ...

Page 9: ... Procedure Points 2 After disconnecting the refrigerant pipes remove the 3 washer nuts that secure the compressor Use open end washer nut a located on the right front side 3 Use T handle box wrench to loosen the nuts b and c a c b Open end wrench T handle box wrench ...

Page 10: ...Revision History Month Year Version Revised contents 01 2013 Si241307 First edition ...

Page 11: ...oduct 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 inst...

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