Related Manuals for Daikin RXR28EV1B9
Summary of Contents for Daikin RXR28EV1B9
- Page 1 Si00-777 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...
- Page 2 Service Manual Removal Procedure Outdoor Unit Heat Pump RXR28EV1B9 RXR42EV1B9 RXR50EV1B9 RXR28FVLT RXR50FVLT...
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Page 3: Table Of Contents
Si00-777 Table of Contents 1. Removal of Humidifier Unit ..............2 2. Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor..........5 3. Removal of Humidifying Fan Assembly ..........9 4. Removal of Hygroscopic Fan Motor............12 5. Removal of Outdoor Fan / Fan Motor ...........13 6. -
Page 4: Removal Of Humidifier Unit
Removal of Humidifier Unit Si00-777 1. Removal of Humidifier Unit Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. External appearance Humidifier unit air inlet (1) Humidifier unit Humidifier... - Page 5 Si00-777 Removal of Humidifier Unit Step Procedure Points 3. Remove the humidifier Be sure to wait for 10 unit. minutes or more after turning off the power supply The figure shows the before disconnecting the arrangement of the connectors. relay harnesses. (R5791) Disconnect the 5 relay connectors.
- Page 6 Removal of Humidifier Unit Si00-777 Step Procedure Points Remove the 4 screws of the humidifier unit and lift it up to remove. Humidifier unit (R13984) The figure shows the When installing the positions of the humidifier unit, do not forget humidifying duct and to connect the relay the relay connectors.
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Page 7: Removal Of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor
Si00-777 Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor 2. Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. - Page 8 Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor Si00-777 Step Procedure Points Remove the 2 screws The heater assembly should and remove the heater be replaced as an assembly assembly. set. (Disassembling of the assembly may cause malfunction.) (R5800) Unfasten the hook.
- Page 9 Si00-777 Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor Step Procedure Points Inside structure of the heater assembly. Heater assembly (R5804) 3. Remove the humidifying rotor. Release the fan motor lead wire from the hooks. Fan motor lead wire (R5805) Remove the bell mouth on adsorption side.
- Page 10 Removal of Heater Assembly / Humidifying Rotor / Humidifying Rotor Motor Si00-777 Step Procedure Points Lift the humidifying A heat catalyst (black) is rotor up to remove. applied on the upper side. Humidifying rotor (Moisture adsorption element) (R13989) 4. Remove the humidifying rotor motor.
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Page 11: Removal Of Humidifying Fan Assembly
Si00-777 Removal of Humidifying Fan Assembly 3. Removal of Humidifying Fan Assembly 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 humidifying Preparation fan assembly. - Page 12 Removal of Humidifying Fan Assembly Si00-777 Step Procedure Points Remove the The humidifying fan humidifying fan assembly should be assembly. replaced as an assembly set. (Disassembling of the assembly can cause a noise.) (R5813) Peel the seal material and pull out the humidifying thermistor.
- Page 13 Si00-777 Removal of Humidifying Fan Assembly Step Procedure Points Remove the damper assembly. Damper assembly (R13991) Remove the screw and remove the damper motor. Damper motor (R13992) Limit switch (R5819) Removal Procedure...
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Page 14: Removal Of Hygroscopic Fan Motor
Removal of Hygroscopic Fan Motor Si00-777 4. Removal of Hygroscopic Fan Motor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the nut and Preparation remove the Remove the humidifying hygroscopic fan. -
Page 15: Removal Of Outdoor Fan / Fan Motor
Si00-777 Removal of Outdoor Fan / Fan Motor 5. Removal of Outdoor Fan / Fan Motor 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 shield plate. Preparation Remove the humidifier unit Remove the screw. - Page 16 Removal of Outdoor Fan / Fan Motor Si00-777 Step Procedure Points Remove the electrical box cover. (R5829) Remove the insulation Insulation sheet sheet. (R13997) 3. Remove the front panel. Remove the 7 screws. Unfasten the 5 hooks in total and remove the front panel.
- Page 17 Si00-777 Removal of Outdoor Fan / Fan Motor Step Procedure Points 4. Remove the outdoor fan. Nut size: M6 Remove the nut and remove the outdoor fan. 10 mm (R12236) When reassembling, align mark of the outdoor D cut fan with the D-cut section of the motor shaft.
- Page 18 Removal of Outdoor Fan / Fan Motor Si00-777 Step Procedure Points Remove the screw of the fan motor fixing plate. Fan motor fixing plate (R14001) Detach the upper part of the fan motor fixing plate. (R5839) Fan motor fixing plate has 2 hooks on lower part.
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Page 19: Removal Of Humidifying Duct
Si00-777 Removal of Humidifying Duct 6. Removal of Humidifying Duct Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the screw and remove the stop valve cover. -
Page 20: Removal Of Electrical Box
Removal of Electrical Box Si00-777 7. Removal of Electrical Box Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Release the harnesses Preparation for the humidifier unit Remove the front panel from the hook. - Page 21 Si00-777 Removal of Electrical Box Step Procedure Points Disconnect the connector for the [S20] electronic expansion valve coil [S20]. (R14050) Disconnect the connector for the [S90] thermistor assembly [S90]. (R14009) Disconnect the connector for the humidifying thermistor [S91]. (R14051) Disconnect the 2 terminals from the reactor.
- Page 22 Removal of Electrical Box Si00-777 Step Procedure Points Disconnect the relay harness for the compressor. (R14010) Remove the screw of Thermal fuse should be the terminal board. replaced with the terminal board. You can work without removing the terminal board. (R14052) Remove the screws and disconnect the...
- Page 23 Si00-777 Removal of Electrical Box Step Procedure Points Disconnect the 4 connectors. White Red Black Green/Yellow Remove the screw and detach the earth wire. Earth wire (R14011) Detach the clamp for the thermistor assembly from the electrical box. Clamp (R14012) Remove the 2 screws of the electrical box.
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Page 24: Removal Of Pcb
Removal of PCB Si00-777 8. Removal of PCB Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the 7 screws. Preparation Remove the electrical box according to "Removal of Electrical Box". - Page 25 Si00-777 Removal of PCB Step Procedure Points Remove the 2 screws and detach the clip to remove the radiation shield plate. Radiation shield plate Clip (R14016) Cut the 3 clamps. (R5864) Remove the 2 screws. (R5865) Unfasten the 3 hooks of the electrical box.
- Page 26 Removal of PCB Si00-777 Step Procedure Points Remove the PCB from the electrical box. (R5867) Disconnect the connectors. 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...
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Page 27: Removal Of Sound Blankets
Si00-777 Removal of Sound Blankets 9. Removal of Sound Blankets 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 right side Preparation panel. Remove the electrical box according to "Removal of Remove the 3 screws... - Page 28 Removal of Sound Blankets Si00-777 Step Procedure Points Untie the strings and open the sound blanket (outer). Sound blanket (outer) (R14023) Pull the sound blanket Since the piping ports on (outer) out. the sound blanket are torn easily, remove the blanket carefully.
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Page 29: Removal Of Thermistor Assembly
Si00-777 Removal of Thermistor Assembly 10.Removal of Thermistor Assembly Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points The figure shows the Preparation arrangement of the Remove the electrical box Outdoor temperature thermistor thermistor assembly. - Page 30 Removal of Thermistor Assembly Si00-777 Step Procedure Points Pull out the outdoor heat exchanger thermistor. (R5879) Be careful not to loose the clip for the thermistor. Remove the sound Since the piping ports on blanket (top). the sound blanket are torn Sound blanket (top) easily, remove the blanket carefully.
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Page 31: Removal Of Reactor / Partition Plate
Si00-777 Removal of Reactor / Partition Plate 11.Removal of Reactor / 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. Remove the reactor. Preparation Remove the sound blankets Remove the screw and... -
Page 32: Removal Of Four Way Valve
Removal of Four Way Valve Si00-777 12.Removal of Four Way Valve Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the screw and Preparation remove the four way Remove the sound blankets valve coil. - Page 33 Si00-777 Removal of Four Way Valve Step Procedure Points Before working, make sure that the refrigerant gas is Warning empty in the circuit. Be careful not to get yourself Be sure to apply nitrogen burnt with the pipes and replacement when heating other parts that are heated by up the brazed part.
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Page 34: Removal Of Electronic Expansion Valve
Removal of Electronic Expansion Valve Si00-777 13.Removal of Electronic Expansion Valve Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the screw and Preparation remove the four way Remove the sound blankets valve coil. -
Page 35: Removal Of Compressor
Si00-777 Removal of Compressor 14.Removal of Compressor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the terminal Preparation Terminal cover cover. Remove the sound blankets according to "Removal of Sound Blankets". - Page 36 Removal of Compressor Si00-777 Step Procedure Points Before working, make sure that the refrigerant gas is Warning empty in the circuit. Be careful not to get yourself Be sure to apply nitrogen burnt with the pipes and replacement when heating other parts that are heated by up the brazed part.
- Page 37 Revision History Month / Year Version Revised contents 07 / 2013 Si00-777 First edition...
- Page 38 Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion. 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.