Daikin FTXZ09NV1S Service Manual
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Daikin FTXZ09NV1S Service Manual

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REMOVAL
PROCEDURE
S E R V I C E
2.5/3.5/5.0 kW Class
9000/12000/18000 Btu/h Class
Indoor Unit
Inverter
Wall Mounted Type
Si041411E
M A N U A L

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Summary of Contents for Daikin FTXZ09NV1S

  • Page 1 Si041411E REMOVAL PROCEDURE S E R V I C E M A N U A L 2.5/3.5/5.0 kW Class 9000/12000/18000 Btu/h Class Indoor Unit Inverter Wall Mounted Type...
  • Page 2 Service Manual Removal Procedure Indoor Unit Heat Pump FTXZ09NV1S FTXZ12NV1S FTXZ18NV1S FTXZ25NVM FTXZ35NVM FTXZ50NVM FTXZ25NVM4 FTXZ35NVM4 FTXZ50NVM4 FTXZ25NVMM FTXZ35NVMM FTXZ50NVMM FTXZ25NVMV FTXZ35NVMV FTXZ50NVMV...

  • Page 3: Table Of Contents

    Si041411E Table of Contents 1. Front Panel....................2 2. Streamer Unit / Dust Box ................3 3. Filters ......................4 4. Front Grilles / Horizontal Blades .............5 5. Electrical Box / PCBs ................9 6. Filter Cleaning Unit................18 7. Swing Motors ..................22 8. Indoor Heat Exchanger .................26 9.

  • Page 4: Front Panel

    Front Panel Si041411E 1. Front Panel Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Appearance features (R19803) 2. Remove the front panel. Front panel Open the front panel. (R19804) Slide the left rotary Rotary shaft (left)

  • Page 5: Streamer Unit / Dust Box

    Si041411E Streamer Unit / Dust Box 2. Streamer Unit / Dust Box 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 streamer The streamer unit can be Streamer unit unit.

  • Page 6: Filters

    Filters Si041411E 3. Filters 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 air filter. Remove the dust box before removing the air filters. Pull down the filter holding frame.

  • Page 7: Front Grilles / Horizontal Blades

    Si041411E Front Grilles / Horizontal Blades 4. Front Grilles / Horizontal Blades 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 front grille (left). Open the 2 horizontal blades.
  • Page 8 Front Grilles / Horizontal Blades Si041411E Step Procedure Points 2. Remove the front grille Front grille (right) (right). Remove the 3 screws of the front grille (right). (R20713) Unfasten the 2 hooks and remove the front grille (right). Hook Hook (R20714) 3.
  • Page 9 Si041411E Front Grilles / Horizontal Blades Step Procedure Points Remove the screw and remove the service cover ASSY. Service cover ASSY (R19826) (R19825) Open the air inlet cover. Air inlet cover (R19827) Unfasten the 8 hooks and remove the front grille (bottom).
  • Page 10 Front Grilles / Horizontal Blades Si041411E Step Procedure Points 4. Remove the horizontal blades. Release the center shaft of the horizontal blade (upper). Release the left and right shafts and remove the horizontal blade (upper). Horizontal blade (upper) (R19830) Release the shaft of the horizontal blade (lower) in the same way.

  • Page 11: Electrical Box / Pcbs

    Si041411E Electrical Box / PCBs 5. Electrical Box / PCBs Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points 1. Disconnect the connecting wires. Remove the screw and remove the wire fixture.
  • Page 12 Electrical Box / PCBs Si041411E Step Procedure Points Remove the screw and Electrical box slightly draw out the electrical box. (R19837) Release the harnesses from the 3 hooks. Hook Hook (R19838) Disconnect the [S41]: swing motors, humidity [S41] connectors [S41] [S44] sensor PCB for [S44] [S46] and release the...
  • Page 13 Si041411E Electrical Box / PCBs Step Procedure Points Unfasten the 3 hooks Filter cleaning unit and lift the filter cleaning unit. Hook Hook (R19841) Remove the earth / ground screw. (R19842) Detach the indoor heat exchanger thermistor. Indoor heat exchanger thermistor (R19843) Removal Procedure...
  • Page 14 Electrical Box / PCBs Si041411E Step Procedure Points Release the harness of the indoor heat exchanger thermistor from the hook and draw the electrical box a little. Hook (R19844) Disconnect the [S200]: fan motor [S200] connector [S200]. (R19845) Remove the electrical Electrical box box.
  • Page 15 Si041411E Electrical Box / PCBs Step Procedure Points Remove the 2 screws and remove the earth / ground wires from the hook. Hook Earth / ground wire (R20719 ) Disconnect the [S33]: humidity sensor PCB for connectors [S33] [S52]. room [S52] [S33] [S52]: high voltage unit PCB...
  • Page 16 Electrical Box / PCBs Si041411E Step Procedure Points Unfasten the 2 hooks [S32]: indoor heat exchanger Control PCB and remove the control thermistor PCB. [S33]: humidity sensor PCB for room [S41]: swing motors, humidity sensor PCB for humidifying [S44]: brush motor, filter motors, limit switch for brush [S46]: signal receiver / display [S52]: high voltage unit PCB...
  • Page 17 Si041411E Electrical Box / PCBs Step Procedure Points 5. Remove the high voltage unit PCB. Hook Remove the insulation sheet. High voltage unit PCB Unfasten the hook and remove the high voltage unit PCB. Insulation sheet (R19856) Disconnect the [S401]: for control PCB connectors [S401] [B401][CN403]: streamer [CN403]...
  • Page 18 Electrical Box / PCBs Si041411E Step Procedure Points 6. Remove the limit switch. Unfasten the 4 hooks and remove the cover. Remove the limit Limit switch switch. Hook Cover Hook (R19860) 7. Remove the signal receiver / display PCB. Remove the display unit from the filter cleaning unit.
  • Page 19 Si041411E Electrical Box / PCBs Step Procedure Points Remove the signal [S26]: INTELLIGENT EYE receiver / display PCB. sensor PCBs Signal receiver / [S56]: control PCB [S26] display PCB [S56] Disconnect the connectors [S26] [S56]. (R20774) 8. Remove the INTELLIGENT EYE sensors.

  • Page 20: Filter Cleaning Unit

    Filter Cleaning Unit Si041411E 6. Filter Cleaning Unit 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 cleaning unit. Remove the 2 screws on the both side. (R20720) Unfasten the center Hook...
  • Page 21 Si041411E Filter Cleaning Unit Step Procedure Points Remove the screw. Unfasten the hook and remove the motor cover (a). Remove the brush Brush motor motor. Limit switch Remove the limit Motor cover (a) switch. Hook (R20724) 3. Remove the filter motors. Remove the screw.
  • Page 22 Filter Cleaning Unit Si041411E Step Procedure Points Unfasten the 4 hooks on the back. Hook Hook Hook (R20725) Remove the motor cover (b). Motor cover (b) Hook Hook (R20726) Remove the filter motors. Filter motor (right) Filter motor (left) (R19879) 4.
  • Page 23 Si041411E Filter Cleaning Unit Step Procedure Points Remove the 3 screws and remove the Undercover undercover. (R19881) Pull out the drive shaft. Drive shaft (R19882) Remove the screw. (R19883) Unfasten the hook and remove the gear ASSY. Gear ASSY (R19884) Removal Procedure...

  • Page 24: Swing Motors

    Swing Motors Si041411E 7. Swing Motors 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 air outlet ASSY. Remove the 2 screws of the air outlet ASSY. Air outlet ASSY (R19888) Unfasten the lower 4...
  • Page 25 Si041411E Swing Motors Step Procedure Points Remove the vertical blade ASSY. Vertical blade ASSY Remove the other vertical blade ASSY in the same way. (R19892) 3. Remove the swing motor for horizontal blade (upper). Remove the screw. Hook Release the harness from the 3 hooks.
  • Page 26 Swing Motors Si041411E Step Procedure Points 4. Remove the swing motors Connector color: Shaft right → green for vertical blades. left → white Remove the 2 screws and remove the swing motor for vertical blades. Disconnect the connector. Remove the shaft. Swing motor for (R20728) vertical blades...
  • Page 27 Si041411E Swing Motors Step Procedure Points Remove the 2 screws. Unfasten the 2 hooks and remove the cover. Hook Cover Hook (R19900) (R19901) Unfasten the hook and remove the motor for suction cover. Disconnect the Connector color: red connector. Hook Motor for suction cover...

  • Page 28: Indoor Heat Exchanger

    Indoor Heat Exchanger Si041411E 8. Indoor Heat Exchanger Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. In pump-down work, be sure to stop the compressor before disconnecting the refrigerant pipe. If the refrigerant pipe is disconnected with the compressor operating and the stop valve open, air may be sucked in and may generate an over-pressure in refrigeration cycle, thus resulting in pipe rupture or accidental injury.
  • Page 29 Si041411E Indoor Heat Exchanger Step Procedure Points 3. Remove the indoor heat exchanger. Unfasten the 3 hooks and remove the piping Hook fixture. Hook (R19908) Piping fixture Slightly widen the Drain hose auxiliary piping. Remove the screw and remove the drain hose. Auxiliary piping (R19909) Remove the screw.
  • Page 30 Indoor Heat Exchanger Si041411E Step Procedure Points Unfasten the hook and remove the indoor heat exchanger. Hook (R19911) Indoor heat exchanger (R19912) Removal Procedure...

  • Page 31: Fan Rotor / Fan Motor

    Si041411E Fan Rotor / Fan Motor 9. Fan Rotor / Fan Motor Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work. Step Procedure Points Remove the 2 screws and remove the right side panel.
  • Page 32 Fan Rotor / Fan Motor Si041411E Step Procedure Points Remove the bearing. Bearing (R19917) Pull out the fan motor. The magnet of the motor is Fan motor united with the fan rotor. Be careful not to attract metal waste to the magnet. Keep away from the materials that can be affected by magnetic force...
  • Page 33 Revision History Month / Year Version Revised contents 08 / 2014 Si041411E First edition...
  • Page 34 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.

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