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Daikin RXN25KEV1B Service Manual

Daikin RXN25KEV1B Service Manual

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Si001161
REMOVAL
PROCEDURE
S E R V I C E
M A N U A L
2.5/3.5 kW Class
Outdoor Unit
Inverter
Pair Type

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Summary of Contents for Daikin RXN25KEV1B

  • Page 1 Si001161 REMOVAL PROCEDURE S E R V I C E M A N U A L 2.5/3.5 kW Class Outdoor Unit Inverter Pair Type...
  • Page 2 Service Manual Removal Procedure Outdoor Unit Applicable Models Heat Pump RXN25KEV1B RXN35KEV1B RXN425KC RXN435KC...
  • Page 3: Table Of Contents

    Si001161 Table of Contents 1. Removal of Outer Panels ................2 2. Removal of Outdoor Fan / Fan Motor .............4 3. Removal of Electrical Box / PCB.............6 4. Removal of Sound Blankets..............14 5. Removal of Four Way Valve ..............16 6. Removal of Compressor ...............19 Note: The illustrations may be slightly different depending on the model.
  • Page 4: Removal Of Outer Panels

    Removal of Outer Panels Si001161 1. Removal of Outer Panels Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Appearance features (R10707) Take care not to cut your finger by the fins of the outdoor heat exchanger.
  • Page 5 Si001161 Removal of Outer Panels Step Procedure Points Remove the 3 screws Top panel (right: 1 screw, left: 2 screws) and remove the top panel. Remove the 5 screws of the front panel. (R10711) Front panel Lift up the left side and unfasten the hooks.
  • Page 6: Removal Of Outdoor Fan / Fan Motor

    Removal of Outdoor Fan / Fan Motor Si001161 2. 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. Procedure Points Step 1. Remove the outdoor fan. Preparation Remove the panels Remove the nut of the...
  • Page 7 Si001161 Removal of Outdoor Fan / Fan Motor Step Procedure Points Remove the screw and When reassembling, put the Fan motor fixing frame remove the fan motor fan motor lead wire through fixing frame. the back of the fan motor so as not to be entangled with the outdoor fan.
  • Page 8: Removal Of Electrical Box / Pcb

    Removal of Electrical Box / PCB Si001161 3. Removal of Electrical Box / PCB Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the PCB. Preparation Remove the panels Remove the screws...
  • Page 9 Si001161 Removal of Electrical Box / PCB Step Procedure Points Remove the screw on the rear side of the right side panel. Right side panel (R15876) Remove the 4 screws on the right side panel. (R14499) Unfasten the hook on When reassembling, make the rear side.
  • Page 10 Removal of Electrical Box / PCB Si001161 Step Procedure Points Unfasten the hook, and remove the right side panel. Right side panel (R14502) Hook Pull out the terminals 1 : black, upper White from the terminal board 2 : white, lower except the earth wire.
  • Page 11 Si001161 Removal of Electrical Box / PCB Step Procedure Points Disconnect the [S20]: electronic expansion [S90] [S40] [S20] connector [S20], [S40], valve coil [S90]. [S40]: overload protector [S90]: thermistors (R16001) Release the harnesses of [S20], [S40], [S90] from the groove. (R16002) Disconnect the The colors of the harnesses...
  • Page 12 Removal of Electrical Box / PCB Si001161 Step Procedure Points Release the harnesses of the relay connector and the reactor from the groove. (R14510) Release the lead wires of the power supply and the earth wire from the groove. (R14581) Remove the electrical Electrical box cover box cover and...
  • Page 13 Si001161 Removal of Electrical Box / PCB Step Procedure Points Remove the 5 screws. (R14512) Unfasten the hook. (R14513) Remove the PCB. (R14514) [S90] [S40] [S20] [S80] [S70] [S20]: electronic expansion valve coil [S40]: overload protector [S70]: fan motor [S80]: four way valve coil [S90]: thermistors (R14515) Removal Procedure...
  • Page 14 Removal of Electrical Box / PCB Si001161 Step Procedure Points 2. Remove the electrical box. Some models have no screw. Remove the screw and Electrical box remove the electrical box. (R15879) 3. Remove the reactor. Some models have more screws. Remove the screw and remove the reactor.
  • Page 15 Si001161 Removal of Electrical Box / PCB Step Procedure Points Cut the clamp. When reassembling, clamp the outdoor heat exchanger thermistor. (R15890) Release the outdoor Take care not to lose the clip heat exchanger of thermistor. thermistor. Clip Thermistor Clip Outdoor (R11268) (R14520)
  • Page 16: Removal Of Sound Blankets

    Removal of Sound Blankets Si001161 4. Removal of Sound Blankets Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the partition Some models have more plate.
  • Page 17 Si001161 Removal of Sound Blankets Step Procedure Points 2. Remove the sound The design of sound blankets. blankets is different depending on the model. Lift and remove the Sound blanket Since the piping ports on the sound blankets (top (top upper) sound blanket are torn upper, top lower).
  • Page 18: Removal Of Four Way Valve

    Removal of Four Way Valve Si001161 5. 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. Procedure Points Step 1. Remove the peripheries. Remove the screw and remove the four way valve coil.
  • Page 19 Si001161 Removal of Four Way Valve Step Procedure Points Remove the protection Protection bushing bushing. (R14530) Remove the electronic Electronic expansion expansion valve coil. valve coil (R14531) Remove the putty. (R14532) Removal Procedure...
  • Page 20 Removal of Four Way Valve Si001161 Step Procedure Points Before working, make sure that the refrigerant Warning gas is 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 21: Removal Of Compressor

    Si001161 Removal of Compressor 6. Removal of Compressor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the four way valve, the terminal Warning cover and disconnect Be careful not to get yourself the terminals of the burnt with the pipes and...
  • Page 22 Revision History Month / Year Version Revised contents 08/2012 Si001161 First edition...
  • Page 23 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.

This manual is also suitable for:

Rxn35kev1bRxn425kcRxn435kc