Daikin RXZ09NV1S Service Manual Download Page 2 | Manualshive

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Service Manual

Removal Procedure

Outdoor Unit

z

Heat Pump

RXZ09NV1S

RXZ12NV1S

RXZ18NV1S

RXZ25NVM

RXZ35NVM

RXZ50NVM

RXZ25NVM4

RXZ35NVM4

RXZ50NVM4

RXZ25NVMG

RXZ35NVMG

RXZ50NVMG

RXZ25NVMV

RXZ35NVMV

RXZ50NVMV

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Summary of Contents for RXZ09NV1S

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Pair Type 2 5 3 5 5 0 kW Class 9000 12000 18000 Btu h Class Si001412E ...

Page 2: ...ervice Manual Removal Procedure Outdoor Unit zHeat Pump RXZ09NV1S RXZ12NV1S RXZ18NV1S RXZ25NVM RXZ35NVM RXZ50NVM RXZ25NVM4 RXZ35NVM4 RXZ50NVM4 RXZ25NVMG RXZ35NVMG RXZ50NVMG RXZ25NVMV RXZ35NVMV RXZ50NVMV ...

Page 3: ...Panels Outdoor Fan Fan Motor 2 2 Electrical Box 7 3 PCB 10 4 Reactor Thermistor ASSY Partition Plate 12 5 Sound Blankets 15 6 Four Way Valve Electronic Expansion Valve 16 7 Compressor 19 Note The illustrations may be slightly different depending on the model ...

Page 4: ...otor 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 and remove the top panel 2 Remove the 6 screws 3 Unfasten the 5 hooks and remove the front panel R21563 Top panel Front panel R21564 R21565 ...

Page 5: ...dure 3 4 Remove the 4 screws 5 Unfasten the 6 hooks and remove the discharge grille 6 Disconnect the connector S70 S70 fan motor 7 Release the fan motor lead wire from the 5 hooks Step Procedure Points R21566 Discharge grille R21567 S70 R21568 Hook Hook R21569 ...

Page 6: ...f the fan motor so as not to be entangled with the outdoor fan 9 Unfasten the 2 hooks and release the fan motor lead wire 10 Remove the 4 screws and remove the fan motor Be sure to remove the lower screws first If the upper screws are removed first the fan motor may tilt or fall because the center of its gravity is toward the front It may cause injuries Step Procedure Points Nut Outdoor fan R21570...

Page 7: ...top valve cover down and remove it When reassembling make sure to fit the 4 hooks 13 14 Remove the 7 screws and disconnect the connecting wire and power supply wire Remove the 3 screws and remove the wire fixture Step Procedure Points Stop valve cover R21573 Hook R21574 Wire fixture Connecting wire Power supply wire R21575 ...

Page 8: ...stor Remove the 3 screws on the right side panel Remove the earth ground screw 21 22 Unfasten the 4 hooks and remove the right side panel Remove the liquid piping and the gas piping When reassembling make sure to fit the 4 hooks Step Procedure Points Suction grille R21576 R21577 Outdoor temperature thermistor R19605 Earth ground screw R20299 Hook Connecting wire Liquid piping Gas piping R19606 Hoo...

Page 9: ...ork Step Procedure Points 1 2 Remove the screw on the electrical box cover Unfasten the 2 hooks of the electrical box cover 3 Lift up the electrical box cover and remove it You can check the LED A green through slit 4 5 Disconnect the connector S70 Release the fan motor harness from the 5 hooks S70 fan motor Electrical box cover R21580 Slit R21581 Hook Hook S70 R21582 ...

Page 10: ...mistor 7 8 Disconnect the relay connector for the compressor Disconnect the relay connector for the overload protector 9 Disconnect the connector S90 S90 thermistor ASSY 10 Detach the clamp at the bottom of the terminal board Step Procedure Points S91 S80 S20 R21583 Relay connector for overload protector Relay connector for compressor R21584 S90 R21585 Clamp R21586 ...

Page 11: ...e color of the sleeve with the label on the reactor right yellow left red You can connect 2 harnesses of the same color into either upper or lower 12 Remove the screw in front of the electrical box 13 Lift up the electrical box and remove it Step Procedure Points Reactor R21587 Label R20301 Electrical box R21589 R21590 ...

Page 12: ... work Step Procedure Points 1 2 3 Remove the screw and remove the terminal board Remove the screw and detach the earth ground wire Release the harnesses from the hook 4 5 Detach the 2 clamps Cut the clamp 6 Remove the 9 screws Terminal board Earth ground wire Hook R21591 Clamp Clamp for compressor harness Clamp for reactor harness R21592 R21593 ...

Page 13: ...excessive force because the PCB and the radiation fin are adhered to one another 8 Names of the parts on the PCB S20 electronic expansion valve coil S40 overload protector S70 fan motor S80 four way valve coil S90 thermistor ASSY S91 liquid pipe thermistor Step Procedure Points PCB R21594 S20 S80 S40 S70 S91 S90 R21595 ...

Page 14: ...k Step Procedure Points 1 Remove the reactor 1 Remove the screw and remove the reactor 2 Release the outdoor heat exchanger thermistor 1 Remove the tape from the outdoor heat exchanger thermistor harness 2 Release the outdoor heat exchanger thermistor Be careful not to lose the clip for the thermistor Reactor R21596 Outdoor heat exchanger thermistor harness Tape R21597 R19625 Outdoor heat exchange...

Page 15: ...e discharge pipe thermistor Be careful not to lose the fixture for the discharge pipe thermistor When reassembling meet the edge of the thermistor and the fixture 4 Release the liquid pipe thermistor Be careful not to lose the clip for the thermistor 1 2 Open the right side of the sound blanket outer Detach the liquid pipe thermistor Step Procedure Points R19626 Sound blanket top Sound blanket out...

Page 16: ...Plate Si001412E 14 Removal Procedure 5 Remove the partition plate 1 Remove the 2 screws and remove the partition plate 2 The partition plate is fixed by a hook on the bottom frame Step Procedure Points Partition plate R21599 Hook R21600 ...

Page 17: ...ing work Step Procedure Points 1 Remove the sound blanket top Since the piping ports on the sound blanket are torn easily remove the blanket carefully 2 Remove the sound blanket outer 3 4 Open the sound blanket inner and pull it out Pull out the sound blanket bottom R19631 Sound blanket top R19633 Sound blanket outer R19634 Sound blanket inner Sound blanket bottom ...

Page 18: ...20 C 248 F 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 care...

Page 19: ...ate 4 5 Remove the terminal cover and the protection bushing Disconnect the compressor lead wires and detach the overload protector 6 7 Heat up the 4 brazed parts of the four way valve in the order of a b c d Remove the four way valve Step Procedure Points Shield plate R19636 Terminal cover Protection bushing V yellow W blue U red Overload protector R21601 R19638 a b c d Four way valve ...

Page 20: ...nsion Valve Si001412E 18 Removal Procedure 8 Heat up the 2 brazed parts of the electronic expansion valve in the order of e f 9 Remove the electronic expansion valve Step Procedure Points R19639 Electronic expansion valve e f R19640 ...

Page 21: ...as 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 deformed Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries Be ca...

Page 22: ...val Procedure 4 Remove the 2 nuts 5 Heat up the 2 brazed parts of the discharge side and disconnect 6 Heat up the 2 brazed parts of the suction side of the accumulator and disconnect Step Procedure Points R19641 Nut R19642 R19643 ...

Page 23: ...Si001412E Compressor Removal Procedure 21 7 Lift the compressor and remove it Step Procedure Points R19644 Compressor ...

Page 24: ...Revision History Month Year Version Revised contents 03 2015 Si001412E First edition ...

Page 25: ...sories 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 instruc...

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