Daikin RXR28EV1B9 Service Manual Removal Procedure Download | Manualshive

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Removal of Electrical Box

Si00-777

20

Removal Procedure

9

Disconnect the relay
harness for the
compressor.

10

Remove the screw of
the terminal board.

Thermal fuse should be
replaced with the terminal
board.

You can work without
removing the terminal
board.

11

Remove the screws
and disconnect the
connecting wires and
the power supply
cables.

Step

Procedure

Points

(R14010)

(R14052)

(R14054)

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Summary of Contents for RXR28EV1B9

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L 2 8 4 2 5 0 kW Class Outdoor Unit Inverter Pair Type Si00 777...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zHeat Pump RXR28EV1B9 RXR42EV1B9 RXR50EV1B9 RXR28FVLT RXR50FVLT...

Page 3: ...n Motor 12 5 Removal of Outdoor Fan Fan Motor 13 6 Removal of Humidifying Duct 17 7 Removal of Electrical Box 18 8 Removal of PCB 22 9 Removal of Sound Blankets 25 10 Removal of Thermistor Assembly 27...

Page 4: ...e after turning off all power supplies before disassembling work Step Procedure Points 1 External appearance 2 Remove the top panel 1 Remove the 4 screws and remove the top panel Humidifier unit air i...

Page 5: ...r supply before disconnecting the connectors 1 The figure shows the arrangement of the relay harnesses 2 Disconnect the 5 relay connectors 3 Disconnect the connector for the humidifier fan motor Pull...

Page 6: ...midifier unit and lift it up to remove 5 The figure shows the positions of the humidifying duct and the relay connectors When installing the humidifier unit do not forget to connect the relay connecto...

Page 7: ...power supplies before disassembling work Step Procedure Points 1 Inside structure of the humidifier unit Preparation Remove the top panel according to Removal of Humidifier Unit 2 Remove the heater a...

Page 8: ...as an assembly set Disassembling of the assembly may cause malfunction 4 Unfasten the hook 5 Inside of the heater assembly Heater and thermal fuse should be replaced as the heater assembly 6 Loosen th...

Page 9: ...or Removal Procedure 7 7 Inside structure of the heater assembly 3 Remove the humidifying rotor 1 Release the fan motor lead wire from the hooks 2 Remove the bell mouth on adsorption side Step Procedu...

Page 10: ...heat catalyst black is applied on the upper side 4 Remove the humidifying rotor motor 1 The figure shows the connector for the humidifying rotor motor 2 Remove the 2 screws and remove the humidifying...

Page 11: ...power supplies before disassembling work Step Procedure Points 1 Remove the humidifying fan assembly Preparation Remove the humidifier unit according to Removal of Humidifier Unit 1 Peel off the 2 tap...

Page 12: ...fan assembly should be replaced as an assembly set Disassembling of the assembly can cause a noise 5 Peel the seal material and pull out the humidifying thermistor Inside of the upper part of the hum...

Page 13: ...val of Humidifying Fan Assembly Removal Procedure 11 2 Remove the damper assembly 3 Remove the screw and remove the damper motor Step Procedure Points Damper assembly R13991 Damper motor R13992 Limit...

Page 14: ...t and remove the hygroscopic fan Preparation Remove the humidifying rotor according to Removal of Heater Assembly Humidifying Rotor Humidifying Rotor Motor Nut size M6 When reassembling align the mark...

Page 15: ...p Procedure Points 1 Remove the shield plate Preparation Remove the humidifier unit according to Removal of Humidifier Unit Be careful not to forget to install not to lose and not to break the shield...

Page 16: ...ver 3 Remove the insulation sheet 3 Remove the front panel 1 Remove the 7 screws Unfasten the 5 hooks in total and remove the front panel 2 Remove the 4 screws and remove the front grille Step Procedu...

Page 17: ...mark of the outdoor fan with the D cut section of the motor shaft 1 Remove the nut and remove the outdoor fan 5 Remove the fan motor 1 Disconnect the connector for the fan motor S70 2 Release the fan...

Page 18: ...hooks on lower part 6 Unfasten the hook and release the fan motor lead wire When reassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor f...

Page 19: ...to 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 stop valve cover 2 Remove the screw and remove th...

Page 20: ...assembling work Step Procedure Points 1 Release the harnesses for the humidifier unit from the hook Preparation Remove the front panel according to Removal of Outdoor Fan Fan Motor 2 Disconnect the co...

Page 21: ...for the electronic expansion valve coil S20 6 Disconnect the connector for the thermistor assembly S90 7 Disconnect the connector for the humidifying thermistor S91 8 Disconnect the 2 terminals from t...

Page 22: ...the compressor 10 Remove the screw of the terminal board Thermal fuse should be replaced with the terminal board You can work without removing the terminal board 11 Remove the screws and disconnect t...

Page 23: ...screw and detach the earth wire 14 Detach the clamp for the thermistor assembly from the electrical box 15 Remove the 2 screws of the electrical box 16 Lift the electrical box and remove it Step Proce...

Page 24: ...work Step Procedure Points 1 Remove the 7 screws Preparation Remove the electrical box according to Removal of Electrical Box 2 Detach the radiation fin In working be careful not to break the PCB wit...

Page 25: ...3 Remove the 2 screws and detach the clip to remove the radiation shield plate 4 Cut the 3 clamps 5 Remove the 2 screws 6 Unfasten the 3 hooks of the electrical box Step Procedure Points Clip Radiatio...

Page 26: ...tors S20 electronic expansion valve coil S21 humidifying rotor motor S22 damper motor S45 thermal fuse S70 fan motor S72 humidifier fan motor S80 four way valve coil S90 thermistor assembly S91 humidi...

Page 27: ...the right side panel Preparation Remove the electrical box according to Removal of Electrical Box 1 Remove the 3 screws on the back side of the right side panel 2 Remove the 2 screws 3 Lift the right...

Page 28: ...ll the sound blanket outer out Since the piping ports on the sound blanket are torn easily remove the blanket carefully 4 Open the sound blanket inner and pull it out 5 Pull the sound blanket bottom o...

Page 29: ...he arrangement of the thermistor assembly Preparation Remove the electrical box according to Removal of Electrical Box 2 Remove the 3 screws on the back side of the right side panel and detach the out...

Page 30: ...ince the piping ports on the sound blanket are torn easily remove the blanket carefully 7 Release the discharge pipe thermistor Detach the discharge pipe thermistor while opening the thermistor fixing...

Page 31: ...before disassembling work Step Procedure Points 1 Remove the reactor Preparation Remove the sound blankets according to Removal of Sound Blankets 1 Remove the screw and remove the reactor 2 Remove the...

Page 32: ...rning off all power supplies before disassembling work Step Procedure Points 1 Remove the screw and remove the four way valve coil Preparation Remove the sound blankets according to Removal of Sound B...

Page 33: ...uired to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the four way valve with wet clo...

Page 34: ...urself burnt with the pipes and other parts that are heated by the gas brazing machine Warning If the refrigerant gas leaks during work ventilate the room If the refrigerant gas is exposed to flames t...

Page 35: ...k Step Procedure Points 1 Remove the terminal cover Preparation Remove the sound blankets according to Removal of Sound Blankets 2 Disconnect the compressor lead wires and detach the overload protecto...

Page 36: ...o prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the four way valve with wet cloth and...

Page 37: ...Revision History Month Year Version Revised contents 07 2013 Si00 777 First edition...

Page 38: ...ories 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 acc...

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