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Si041411E

Front Grilles / Horizontal Blades

Removal Procedure

7

2

Remove the screw and 
remove the service 
cover ASSY.

3

Open the air inlet cover.

4

Unfasten the 8 hooks 
and remove the front 
grille (bottom).

„

If piping work is difficult, 
remove the piping cover and 
cut the front grille (bottom) to 
expand the opening.

Step

Procedure

Points

(R19825)

Service cover ASSY

(R19826)

Air inlet cover

(R19827)

Hook

Hook

Hook

Hook

Hook

Front grille 
(bottom)

(R19828)

Cut

Cut

(R19829)

Piping cover

Summary of Contents for FTXZ25NVM

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Indoor Unit Inverter Wall Mounted Type 2 5 3 5 5 0 kW Class 9000 12000 18000 Btu h Class Si041411E ...

Page 2: ...Manual Removal Procedure Indoor Unit zHeat Pump FTXZ09NV1S FTXZ12NV1S FTXZ18NV1S FTXZ25NVM FTXZ35NVM FTXZ50NVM FTXZ25NVM4 FTXZ35NVM4 FTXZ50NVM4 FTXZ25NVMM FTXZ35NVMM FTXZ50NVMM FTXZ25NVMV FTXZ35NVMV FTXZ50NVMV ...

Page 3: ...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 Fan Rotor Fan Motor 29 Note The illustrations may be slightly different depending on the model ...

Page 4: ...es before disassembling work Step Procedure Points 1 Appearance features 2 Remove the front panel 1 Open the front panel 2 3 Slide the left rotary shaft to the outside and release it Release the right rotary shaft in the same way 4 Remove the front panel R19803 Front panel R19804 R19805 Rotary shaft left R19806 Rotary shaft right R19807 ...

Page 5: ...nts 1 Remove the streamer unit The streamer unit can be removed without removing the front panel 1 Remove the streamer unit 2 Remove the dust box 1 Slide the right and left knobs on the dust box inward and remove the dust box 2 3 Slide the cover to the left and unlock it Turn the cover and open the dust box 4 Pull out the dust brush Streamer unit R19808 Dust box Knob R19809 R19810 Cover Dust brush...

Page 6: ...emoving the air filters 1 Pull down the filter holding frame 2 Turn up the display unit 3 4 Pull the air filter downward and remove it Remove the other air filter in the same way 2 Remove the photocatalytic air purifying and deodorizing filter 1 Remove the photocatalytic air purifying and deodorizing filter Filter holding frame R19813 R19814 Display unit Air filter R19815 Photocatalytic air purify...

Page 7: ...inutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the front grille left 1 Open the 2 horizontal blades 2 Remove the 2 screws of the front grille left 3 Unfasten the 2 hooks and remove the front grille left Horizontal blade R20710 Front grille left R20711 Hook R20712 Hook ...

Page 8: ...lle right 1 Remove the 3 screws of the front grille right 2 Unfasten the 2 hooks and remove the front grille right 3 Remove the front grille bottom 1 Remove the screw cover with a flat head screwdriver Step Procedure Points Front grille right R20713 Hook Hook R20714 Screw cover R19824 ...

Page 9: ...nlet cover 4 Unfasten the 8 hooks and remove the front grille bottom If piping work is difficult remove the piping cover and cut the front grille bottom to expand the opening Step Procedure Points R19825 Service cover ASSY R19826 Air inlet cover R19827 Hook Hook Hook Hook Hook Front grille bottom R19828 Cut Cut R19829 Piping cover ...

Page 10: ... and remove the horizontal blade upper 3 4 Release the shaft of the horizontal blade lower in the same way Remove the horizontal blade lower 5 Remove the air inlet cover 1 Release the shafts of the air inlet cover in the order of right center and left and remove the air inlet cover Step Procedure Points R19830 Horizontal blade upper Horizontal blade lower R19831 R20715 Air inlet cover ...

Page 11: ...ect the connecting wires 1 2 Remove the screw and remove the wire fixture Remove the 4 screws on the terminal board and disconnect the connecting wire 2 Remove the electrical box 1 Remove the screw 2 3 Unfasten the 3 hooks Remove the front grille front 4 Unfasten the hook and remove the shield plate Terminal board Wire fixture Connecting wire R20716 R19834 Hook Front grille front R19835 R19836 Hoo...

Page 12: ...he 3 hooks 7 Disconnect the connectors S41 S44 S46 and release the harnesses from the hook S41 swing motors humidity sensor PCB for humidifying S44 brush motor filter motors limit switch for brush S46 signal receiver display PCB 8 Remove the 2 screws Step Procedure Points Electrical box R19837 R19838 Hook Hook Hook S46 S44 S41 R19839 R19840 ...

Page 13: ...e 11 9 Unfasten the 3 hooks and lift the filter cleaning unit 10 Remove the earth ground screw 11 Detach the indoor heat exchanger thermistor Step Procedure Points R19841 Filter cleaning unit Hook Hook R19842 R19843 Indoor heat exchanger thermistor ...

Page 14: ...ctrical box a little 13 Disconnect the connector S200 S200 fan motor 14 Remove the electrical box 3 Remove the control PCB 1 2 Remove the shield plate Remove the screw and remove the terminal board The shield plate has 3 hooks Step Procedure Points R19844 Hook S200 R19845 R19846 Electrical box Shield plate Terminal board R20751 Hook Hook R20718 ...

Page 15: ...s from the hook S33 humidity sensor PCB for room S52 high voltage unit PCB 6 7 Disconnect the connectors S32 S53 Release the harnesses from the hook S32 indoor heat exchanger thermistor S53 limit switch for streamer 8 Release the harnesses for the terminal board from the hook Step Procedure Points R20719 Hook Earth ground wire R19850 S52 S33 Hook S53 S32 Hook R19851 Hook R19852 ...

Page 16: ...h motor filter motors limit switch for brush S46 signal receiver display PCB S52 high voltage unit PCB S53 limit switch for streamer S200 fan motor 4 Remove the humidity sensor PCB for room 1 2 Unfasten the hook and remove the humidity sensor PCB for room Disconnect the connector Step Procedure Points Hook R20753 Control PCB S33 S52 S53 S32 S41 S44 S46 S200 R20773 Hook R19855 Connector for control...

Page 17: ...ltage unit PCB 3 Disconnect the connectors S401 B401 CN403 and remove the high voltage unit PCB S401 for control PCB B401 CN403 streamer 4 Release the harnesses from the hooks 5 Remove the 2 screws and remove the contact switches Step Procedure Points R19856 Hook Insulation sheet High voltage unit PCB B401 CN403 S401 R19857 R20754 Hook R19859 Contact switch ...

Page 18: ...receiver display PCB 1 Remove the display unit from the filter cleaning unit 2 Remove the 2 screws on the back of the display unit 3 4 Remove the streamer duct and the mounting plate Unfasten the 5 hooks of the signal receiver display PCB Step Procedure Points R19860 Hook Cover Limit switch Hook R19861 Display unit R19862 R19863 Hook Hook Streamer duct Mounting plate ...

Page 19: ...s S26 S56 S26 INTELLIGENT EYE sensor PCBs S56 control PCB 8 Remove the INTELLIGENT EYE sensors 1 Unfasten the 4 hooks and remove the lamp cover 2 Pinch and remove the INTELLIGENT EYE sensors Step Procedure Points Signal receiver display PCB S56 S26 R20774 R19865 Hook Hook R19866 Lamp cover R19867 INTELLIGENT EYE sensor ...

Page 20: ...supplies before disassembling work Step Procedure Points 1 Remove the cleaning unit 1 Remove the 2 screws on the both side 2 Unfasten the center hook 3 Remove the filter cleaning unit 2 Remove the brush motor 1 Disconnect the 3 connectors and release the harness from the hook R20720 Hook R20721 Filter cleaning unit R20722 R20723 Red White Green Hook ...

Page 21: ...ver a Remove the brush motor Remove the limit switch 3 Remove the filter motors 1 Remove the screw 2 Unfasten the hook and remove the air filter guide motor ASSY 3 Remove the cam gear Step Procedure Points R20724 Limit switch Motor cover a Hook Brush motor R19874 Air filter guide motor ASSY R19875 Hook R19876 Cam gear ...

Page 22: ...motor cover b 6 Remove the filter motors 4 Remove the peripheral parts 1 Release the shafts on the right and left side and remove the filter holding frame Step Procedure Points R20725 Hook Hook Hook R20726 Hook Motor cover b Hook R19879 Filter motor right Filter motor left Filter holding frame R19880 ...

Page 23: ...al Procedure 21 2 Remove the 3 screws and remove the undercover 3 Pull out the drive shaft 4 Remove the screw 5 Unfasten the hook and remove the gear ASSY Step Procedure Points Undercover R19881 R19882 Drive shaft R19883 R19884 Gear ASSY ...

Page 24: ...mbling work Step Procedure Points 1 Remove the air outlet ASSY 1 Remove the 2 screws of the air outlet ASSY 2 3 Unfasten the lower 4 hooks and upper 3 hooks Remove the air outlet ASSY 2 Remove the vertical blade ASSY 1 Release the 2 shafts of the vertical blade ASSY 2 Unfasten the 2 hooks R19888 Air outlet ASSY Hook Hook Hook R19889 Shaft R19890 Hook R19891 ...

Page 25: ...horizontal blade upper 1 2 Remove the screw Release the harness from the 3 hooks 3 Unfasten the 5 hooks and remove the cover link 4 5 Remove the swing motor for horizontal blade upper Disconnect the connector Connector color red Step Procedure Points Vertical blade ASSY R19892 Hook R19893 Cover link Hook Hook R20727 Swing motor for horizontal blade upper R19895 ...

Page 26: ...t the connector Remove the shaft Remove the other swing motor for vertical blades in the same way 5 Remove the swing motor for horizontal blade lower and the motor for suction cover 1 2 Remove the screw Release the harness from the 2 hooks 3 Unfasten the 2 hooks and remove the gear case ASSY Step Procedure Points Swing motor for vertical blades Shaft R20728 Hook Hook R19897 Hook R19898 Hook Gear c...

Page 27: ...he hook and remove the motor for suction cover Disconnect the connector Connector color red 8 9 Remove the swing motor for horizontal blade lower Disconnect the connector Connector color green Step Procedure Points Hook Hook Cover R19900 R19901 Hook R19902 Motor for suction cover R19903 Swing motor for horizontal blade lower ...

Page 28: ...ou may be injured by the fins Caution Be sure to conduct pump down operation before disassembling the refrigerant pipe If the refrigerant leaks repair the spot of leaking then collect all refrigerant from the unit After conducting vacuum drying recharge proper amount of refrigerant From the viewpoint of global environmental protection make sure to use a vacuum pump for air purging Step Procedure P...

Page 29: ...sten the 3 hooks and remove the piping fixture 2 3 Slightly widen the auxiliary piping Remove the screw and remove the drain hose 4 5 Remove the screw Unfasten the hook while pushing from behind Step Procedure Points Hook Hook Piping fixture R19908 Drain hose Auxiliary piping R19909 Hook R19910 ...

Page 30: ...Indoor Heat Exchanger Si041411E 28 Removal Procedure 6 Unfasten the hook and remove the indoor heat exchanger Step Procedure Points R19911 Hook Indoor heat exchanger R19912 ...

Page 31: ...plies before disassembling work Step Procedure Points 1 Remove the 2 screws and remove the right side panel 2 Remove the 4 screws of the drain pan ASSY 3 Unfasten the hook and remove the drain pan ASSY 4 5 Release the harness from the hook Lift up and remove the fan rotor Right side panel R19913 R19914 Drain pan ASSY R19915 Hook Fan rotor Hook R19916 ...

Page 32: ...net of the motor is 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 also 8 Unfasten the 2 hooks and remove the motor cover Step Procedure Points Bearing R19917 R19918 Fan motor Hook Motor cover R19919 R20348 ...

Page 33: ...Revision History Month Year Version Revised contents 08 2014 Si041411E First edition ...

Page 34: ...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 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 instruct...

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