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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.

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.

Si011086

01/2013 AK.B

Summary of Contents for RYN50HV1A

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L 5 0 kW Class Outdoor Unit Non inverter Pair Type Si011086...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zHeat Pump RYN50HV1A...

Page 3: ...Outdoor Fan Fan Motor 6 3 Removal of Electrical Components 9 4 Removal of Partition Plate 13 5 Removal of Thermistor ASSY 15 6 Removal of Sound Blankets 19 7 Removal of Four Way Valve 20 8 Removal of...

Page 4: ...ore after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the panels Take care not to cut your finger by the fins of the outdoor heat exchanger 1 Remove the 4 s...

Page 5: ...emoval Procedure 3 The discharge grille has 4 hooks 3 Remove the 6 screws of the front panel 4 Slide the shield plate to the left to unfasten the hooks and remove it Step Procedure Points R13358 R1335...

Page 6: ...oks Lift the front panel while pushing the left side panel inward 6 Unfasten the right side hook Lift the front panel and unfasten the right side hook 7 Remove the front panel When reassembling fit th...

Page 7: ...cedure 5 2 Remove the stop valve cover 1 Remove the screw of the stop valve cover 2 Pull down the stop valve cover to unfasten the hooks and remove it The stop valve cover has 6 hooks Step Procedure P...

Page 8: ...10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the nut and remove the outdoor fan Nut size M6 When reassembling align the mark of the...

Page 9: ...Removal Procedure 7 3 Release the fan motor lead wire from the hook 4 Remove the 2 screws of the fan motor fixing plate 5 Remove the fan motor fixing plate Step Procedure Points R13370 Fan motor lead...

Page 10: ...Removal of Outdoor Fan Fan Motor Si011086 8 Removal Procedure 6 Cut the clamp at 3 locations 7 Remove the 4 screws 8 Remove the fan motor Step Procedure Points R13373 R13374 Fan motor R13375...

Page 11: ...to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the PCB 1 Disconnect the connectors S5 S7 S8 S20 S80 S90 2 Release the fan...

Page 12: ...ts Si011086 10 Removal Procedure 4 Remove the PCB S5 AC fan motor S7 terminal board S8 compressor S20 electronic expansion valve S80 four way valve coil S90 thermistor ASSY Step Procedure Points R1338...

Page 13: ...1 Pull out all the terminals with pliers 2 Remove the 2 screws Remove the magnetic contactor 3 Remove the fan motor capacitor 1 Pull out all the terminals 2 Remove the screw Remove the fan motor capa...

Page 14: ...Si011086 12 Removal Procedure 4 Remove the compressor motor capacitor 1 Pull out all the terminals 2 Remove the 2 screws 3 Remove the compressor motor capacitor Step Procedure Points R13389 R13390 R1...

Page 15: ...Partition Plate Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Peel the sealing material off 2 Remove...

Page 16: ...the harness of the electronic expansion valve from the clamp 6 Release the harness of the four way valve from the mounting plate 7 Lift and remove the partition plate When reassembling make sure to f...

Page 17: ...SY Procedure 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 2 screws right 2 Remove the 2 screws back...

Page 18: ...ure 4 Unfasten the hooks and remove the right side panel When reassembling insert the 2 hooks of the lower part and the 1 hook of the upper back 5 Release the harness from the clamps Step Procedure Po...

Page 19: ...t the clamp of the outdoor temperature thermistor 7 Cut the clamp of the outdoor heat exchanger thermistor 8 Pull out the outdoor heat exchanger thermistor Be careful not to lose the clip for the ther...

Page 20: ...of Thermistor ASSY Si011086 18 Removal Procedure 9 Release the discharge pipe thermistor Remove the thermistor ASSY Be careful not to lose the clip for the thermistor Step Procedure Points R13409 R122...

Page 21: ...er turning off all power supplies before disassembling work Step Procedure Points 1 Remove the sound blanket top upper 2 Remove the sound blanket outer Since the piping ports are torn easily remove th...

Page 22: ...o wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the screw and remove the four way valve coil 2 Remove the electronic expansi...

Page 23: ...e Removal Procedure 21 4 Remove the nut of the terminal cover 5 Remove the terminal cover 6 Disconnect the lead wires of the compressor 7 Remove the gasket Step Procedure Points Terminal cover R13416...

Page 24: ...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 g...

Page 25: ...e 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...

Page 26: ...awdust 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 flam...

Page 27: ...Revision History Month Year Version Revised contents 01 2013 Si011086 First edition...

Page 28: ...ies 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 acces...

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