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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/products/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 August 2016 but subject to change without notice.

Si001409EB

08/2016 AK.B

Summary of Contents for RKH50QRV16

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L 5 0 kW Class Outdoor Unit Inverter Pair Type Si001409EB...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zCooling Only RKH50QRV16 RKH50RRV16 RKP50PRV16 RKP50QRV16 RKPA50QRV16 RKPD50QRV16...

Page 3: ...f Contents 1 Outer Panels 2 2 Outdoor Fan Fan Motor 5 3 Electrical Box 7 4 PCB 11 5 Thermistor ASSY 13 6 Reactor Sound Blankets 15 7 Capillary Tube 17 8 Compressor 19 Note The illustrations may be sli...

Page 4: ...move the 4 screws and then the top panel The shape of the discharge grille varies depending on the model 2 Remove the 4 screws and then the left side cover Some models do not have the left side cover...

Page 5: ...anel When reassembling make sure that the 2 hooks are securely fastened 5 Remove the 4 screws of the discharge grille For square grille models 6 Unfasten the 6 hooks and remove the discharge grille St...

Page 6: ...ress the 2 projections from the rear side and rotate the discharge grille For round grille models 8 Unfasten the 6 hooks and remove the discharge grille Step Procedure Points Rear side Projection rear...

Page 7: ...e connector S70 Release the fan motor lead wire from the groove of the partition plate and from the 4 hooks on the electrical box This procedure is not necessary to remove only the outdoor fan S70 fan...

Page 8: ...the 2 lower hooks into the bottom frame 6 Open the 2 hooks and release the fan motor lead wire When reassembling put the fan motor lead wire through the back of the fan motor to avoid entanglement wit...

Page 9: ...tes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Disconnect the connector S70 S70 fan motor 2 Disconnect the connector S40 S40 overload protector 3 4...

Page 10: ...Disconnect the 2 connectors of the reactor 1 orange 2 brown 6 Disconnect the relay connector for the compressor 7 Remove the screw and then the stop valve cover Step Procedure Points Reactor 2 1 R2061...

Page 11: ...e fixture 9 Remove the 7 screws on the terminal board and disconnect the connecting wire and the power supply wire 10 Remove the 2 screws on the right side panel Step Procedure Points R18441 Wire fixt...

Page 12: ...Electrical Box Si001409EB 10 Removal Procedure 11 Remove the screw on the partition plate 12 Lift and remove the electrical box Step Procedure Points R18444 Partition plate R18445 Electrical box...

Page 13: ...re Points 1 Remove the screw and then the electrical box cover Some models have sealing material 2 3 Disconnect the 3 connectors from the terminal board Remove the screw and release the earth ground w...

Page 14: ...B 12 Removal Procedure 5 Remove the screws and then the main PCB The main PCB may be fixed by 5 or 7 screws depending on the model Step Procedure Points Main PCB Pattern 1 5 screws R23683 R23799 Patte...

Page 15: ...emperature thermistor The shape of the protection net varies depending on the model 2 3 Remove the 5 screws of the right side panel Remove the right side panel When reassembling insert the 2 lower hoo...

Page 16: ...e outdoor heat exchanger thermistor Be careful not to lose the clip for the thermistor 6 7 Cut the clamp and release the thermistor ASSY Remove the thermistor ASSY Step Procedure Points Clamp Outdoor...

Page 17: ...to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the screw 2 Remove the reactor There is a hook at the bottom of the reactor...

Page 18: ...blanket top 6 Pull out the sound blanket inner Some models do not have the sound blanket inner When reassembling mount the sound blankets and the partition plate in the following order 1 Bottom 2 Inn...

Page 19: ...ote 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 mean...

Page 20: ...sor lead wires and the overload protector 4 5 Remove the putties Heat up the 2 brazed parts and remove the capillary tube The shape of the capillary tube varies depending on the model Step Procedure P...

Page 21: ...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 br...

Page 22: ...part of the discharge side pipe and disconnect it Heat up the brazed part of the suction side pipe and disconnect it 7 8 Remove the 3 nuts of the compressor Lift the compressor up and remove it Step P...

Page 23: ...ion History Month Year Version Revised contents 08 2014 Si001409E First edition 11 2015 Si001409EA Model addition RKP50QRV16 RKPA50QRV16 RKPD50QRV16 08 2016 Si001409EB Model addition RKH50QRV16 RKH50R...

Page 24: ...ries 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 acce...

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