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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 January 2016 but subject to change without notice.

Si001554EA

01/2016 AK.B

Summary of Contents for RK09NMVJU

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Pair Type 9000 12000 Btu h Class Si001554EA ...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zCooling Only zHeat Pump RK09NMVJU RX09NMVJU RK12NMVJU RX12NMVJU RKN09NMVJU RXN09NMVJU RKN12NMVJU RXN12NMVJU RXL09QMVJU ...

Page 3: ...3 Electrical Box PCB 5 4 Thermistor ASSY 10 5 Sound Blankets 14 6 Reactor Electronic Expansion Valve Coil Partition Plate 15 7 Four Way Valve 17 8 Compressor 19 Note The illustrations may be slightly different depending on the model The illustrations are for heat pump models as representative ...

Page 4: ...mbling work Step Procedure Points 1 2 Remove the 3 screws and remove the top panel Remove the 4 screws of the front panel 3 4 Unfasten the 2 left side hooks and then the 2 right side hooks Remove the front panel 5 Unfasten the 2 hooks on the top and remove the discharge grille Top panel Front panel R22821 Hook R21605 Hook Discharge grille Front panel R21606 ...

Page 5: ... Points 1 Disconnect the connector S71 and remove the filament tape S71 fan motor 2 Release the fan motor lead wire from the groove 3 4 Remove the nut of the outdoor fan Remove the outdoor fan Nut size M6 Align the mark of the outdoor fan with the D cut section of the motor shaft when reassembling S71 Filament tape R22822 Fan motor lead wire Groove R21608 Nut Outdoor fan R21609 10 mm 0 39 inch R18...

Page 6: ... frame When reassembling fit the 2 lower hooks into the bottom frame 6 Open the 3 hooks and release the fan motor lead wire 7 Remove the 3 screws from the fan motor 8 Remove the fan motor Step Procedure Points Fan motor fixing frame R21611 Hook R21610 Hook Fan motor lead wire R21612 Fan motor R21613 R20826 ...

Page 7: ...isassembling work Step Procedure Points 1 Remove the electrical box 1 black front 2 white front 3 red front 1 Disconnect the 3 connectors from the terminal board 2 Remove the screw and detach the earth ground wire 3 Disconnect the connector S80 S80 four way valve coil Cooling only models have no harness for S80 Connector R21614 Earth ground wire R21615 S80 R21616 ...

Page 8: ...l Procedure 4 Disconnect the connector S20 S20 electronic expansion valve coil 5 Disconnect the connector S40 S40 overload protector 6 Disconnect the connector S30 S30 compressor motor Step Procedure Points S20 R21617 S40 R21618 S30 R21619 ...

Page 9: ...s from the reactor When reassembling you can reconnect the 2 connectors for the reactor in either way regardless of the color 8 Disconnect the connector S90 S90 thermistors 9 Pull out the clamp from the bottom Step Procedure Points Reactor Connector R21620 S90 R21621 Clamp R21622 ...

Page 10: ...ctrical box 11 Slide the electrical box to the right and lift up to remove it There are 2 hooks at the bottom and the top back of the electrical box 2 Remove the PCB 1 Remove earth ground screw Step Procedure Points Electrical box R21623 R21624 Hook R20839 Earth ground screw R20840 ...

Page 11: ...1554EA Electrical Box PCB Removal Procedure 9 2 3 Remove the 3 screws of the PCB Unfasten the 2 spacers and the 2 hooks from the PCB 4 Remove the PCB Step Procedure Points Hook Spacer Hook R20841 PCB R20842 ...

Page 12: ...before disassembling work Step Procedure Points 1 Remove the screw 2 Slide the stop valve cover downward and remove it When reassembling make sure to fit the 4 hooks 3 Remove the 2 screws and lift up the protection plate to remove it When reassembling make sure to fit the 2 hooks Stop valve cover R20843 Hook R21630 Protection plate R21631 Hook R21868 ...

Page 13: ...on the left and a projection on top Be sure to catch them all when reassembling 5 Remove the 7 screws on the terminal board and disconnect the connecting wire and the power supply wire 6 Remove the 3 screws of the right side panel Step Procedure Points Projection Conduit mounting plate cover Hook R21632 Connecting wire Power supply wire Terminal board R21633 Right side panel R21634 ...

Page 14: ...move the right side panel 10 11 Cut the clamp Pull out the outdoor heat exchanger thermistor Be careful not to lose the clip for the thermistor The location of the clamp is different depending on the model Step Procedure Points Outdoor temperature thermistor holder R21635 Hook Right side panel R21636 Outdoor heat exchanger thermistor Clamp R20851 Clip R20852 ...

Page 15: ...13 12 Pull out the discharge pipe temperature thermistor and remove the thermistor ASSY Be careful not to lose the fixture for the thermistor Step Procedure Points Discharge pipe temperature thermistor R20853 Thermistor ASSY R20855 R20854 Fixture ...

Page 16: ...k Step Procedure Points 1 Remove the sound blanket top The design of sound blanket varies depending on the model Since the piping ports on the sound blanket are torn easily remove the blanket carefully 2 Detach the fastener and pull out the sound blanket outer 3 Pull out the sound blanket inner Sound blanket top R20856 Sound blanket outer R20857 Sound blanket inner R20858 ...

Page 17: ...tion Plate 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 of the reactor 2 Slide upward the reactor and remove it 3 Pull out the electronic expansion valve coil Reactor R20859 Reactor R20860 Electronic expansion valve coil R20861 ...

Page 18: ...te Si001554EA 16 Removal Procedure 4 Remove the 2 screws of the partition plate 5 Lift up the partition plate and remove it When reassembling fit the hook on the bottom frame Step Procedure Points Partition plate R20862 Partition plate R20863 Hook R20864 ...

Page 19: ...For the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry Note 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 means because the sawdust comes into the circuit When withdrawing the pipes be careful not to ...

Page 20: ... compressor lead wires and the overload protector 5 6 7 Remove the sheet of putty Heat up and disconnect the every brazed part of the four way valve Remove the four way valve Step Procedure Points Terminal cover R20866 Overload protector V yellow W blue Protection bushing U red R22758 Brazed part Putty Four way valve R20868 ...

Page 21: ...e 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 brazed part 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...

Page 22: ... part of the discharge side pipe and disconnect it Heat up the brazed part of the suction side pipe and disconnect it Remove the 3 nuts of the compressor Lift up the compressor and remove it Step Procedure Points Overload protector V yellow W blue Protection bushing U red R22758 Nut Compressor Brazed part of discharge side pipe Brazed part of suction side pipe R20869 ...

Page 23: ...Revision History Month Year Version Revised contents 06 2015 Si001554E First edition 01 2016 Si001554EA Model addition RXL09QMVJU ...

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 accessories can result in water or refrigerant leakage electrical shock fire or explosion z Read the user s manual carefully before using this product The user s manual provides important safety instructi...

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