Daikin SUPER MULTI NX FTXS09LVJU Service Manual Download

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REMOVAL

PROCEDURE

S E R V I C E M A N U A L

Indoor Unit

Inverter/Hybrid

Wall Mounted Type

2.0/2.5/3.5/4.6 kW Class
9000/12000 Btu/h Class

Si041137

Summary of Contents for SUPER MULTI NX FTXS09LVJU

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Indoor Unit Inverter Hybrid Wall Mounted Type 2 0 2 5 3 5 4 6 kW Class 9000 12000 Btu h Class Si041137 ...

Page 2: ...0KVMA FTKS12HV2S FTXS25KVMA FTXS35KVMA FTKS20KVMA FTXS46KVMA FTKS25KVMA FTKS35KVMA FTYN25KV1A FTYN35KV1A FTN25KV1A FTYN35KAV1A FTN35KV1A FTN35KAV1A FTXF125KC W FTXF125KC R FTKS20LVMA FTXF135KC W FTKS25LVMA FTXF135KC R FTKS35LVMA FTKS46LVMA FTXS09LVJU FTXS12LVJU FTXS20LVMA FTXS25LVMA FTXS35LVMA FTXS46LVMA ...

Page 3: ...Horizontal Blades Vertical Blades 7 5 Removal of Electrical Box 11 6 Removal of PCBs Pattern 1 14 7 Removal of PCBs Pattern 2 20 8 Removal of Swing Motors Pattern 1 24 9 Removal of Swing Motors Pattern 2 28 10 Removal of Indoor Heat Exchanger 31 11 Removal of Fan Motor 34 Note The illustrations may be slightly different depending on the model ...

Page 4: ...utton is kept pressed for 5 seconds the forced cooling operation is performed for about 15 minutes 2 Remove the air filters 1 Open the front panel to the position where it stops 2 Slightly push up the center knob of the air filter and release the hooks The air filter is not marked for difference between the right and left sides The air filter can be set easily by inserting it along the guides Inse...

Page 5: ...ilter The right and left filters are interchangeable 2 Remove the Titanium apatite photocatalytic air purifying filter ASSY by unfastening the projections from the back of the air filter frame 3 Unfasten the 5 hooks and remove the Titanium apatite photocatalytic air purifying filter from its frame Step Procedure Points R7904 Air filter Titanium apatite photocatalytic air purifying filter ASSY R134...

Page 6: ...ocedure Points 1 Open the front panel over the position where it stops 2 Slide the left rotary shaft to the right and release it When reassembling the front panel fit the right and left rotary shafts one by one into the grooves and fully push them into position 3 Slide the right rotary shaft to the left and release it 4 Remove the front panel R7906 Front panel R7907 Rotary shaft R7909 Rotary shaft...

Page 7: ...off all power supplies before disassembling work Step Procedure Points 1 Remove the service cover 1 Remove the screw of the service cover Preparation Remove the front panel according to the Removal of Front Panel 2 Pull out the service cover diagonally down in the direction of the arrow 3 The figure shows the inside R7911 Service cover R13488 R13489 ...

Page 8: ...oks at the top The convex marks on the front panel indicate the position of the hooks 3 Pull the upper part of the front grille out and lift the lower part up and then remove the front grille When reassembling make sure that all the 3 hooks are fastened as they were Step Procedure Points R13490 R13491 Hook R12715 R12268 ...

Page 9: ...rge horizontal blade to the upper position and the small horizontal blade to the lower position Do not put them in the wrong place 2 Unfasten the center shaft while bending the horizontal blade large slightly 3 Unfasten the left shaft 4 Unfasten the right shaft There is a key alignment at the right shaft When reassembling insert the right shaft first while turning After inserting the right shaft f...

Page 10: ...ft There is a key alignment at the right shaft When reassembling insert the right shaft first while turning After inserting the right shaft first mount the horizontal blade to the center shaft and then to the left shaft 3 Remove the fan guard Some models have no fan guard 1 Unfasten the hooks at the lower part of the fan guard with a flat screwdriver Step Procedure Points R13493 Horizontal blade s...

Page 11: ... blade ASSYs 1 Detach the pivot from the interlock shaft for vertical blades with a flat screwdriver 2 Remove the interlock rod 3 Unfasten the hooks at the upper 3 positions by pressing them with a flat screwdriver Step Procedure Points R8079 R13092 Vertical blade ASSY Pivot Interlock shaft R13093 Interlock rod R13094 ...

Page 12: ...7 10 Removal Procedure 4 Remove the vertical blade ASSY A vertical blade ASSY has 5 fins It is impossible to replace only one fin The vertical blade ASSY is not marked for difference between right and left Step Procedure Points R13095 Hook Vertical blade ...

Page 13: ... Procedure Points 1 The figure shows the connections of the wire harnesses Preparation Remove the front grille according to the Removal of Front Grille 2 Remove the screw of the wire retainer 3 Remove the 4 screws of the terminal board and disconnect the connecting wires 4 Disconnect the connector for the fan motor S1 R13496 Electrical box R13497 Wire retainer R16968 Terminal board Connecting wire...

Page 14: ...lamp near the indoor heat exchanger thermistor Some models have no clamp near the indoor heat exchanger thermistor 8 Pull out the indoor heat exchanger thermistor The position of the indoor heat exchanger thermistor varies by model Be careful not to lose the clip of the thermistor Step Procedure Points R7935 S41 R7936 R13104 R7937 Indoor heat exchanger thermistor Clip R11268 ...

Page 15: ... box 11 Unfasten the hook at the upper far side by pressing it from above and pulling the electrical box 12 Lift up the electrical box and pull it out There is a hook also at the lower part of the back When reassembling the electrical box make sure that it is securely fastened Step Procedure Points R16863 Earth ground wire R3939 R8081 Hook R8082 ...

Page 16: ... shows the appearance of the electrical box Preparation Remove the electrical box according to the Removal of Electrical Box 2 Unfasten the hooks at the upper 2 positions of the shield plate 3 Unfasten the hook at the side of the shield plate 4 Lift up the shield plate to unfasten the lower hooks and remove it R13747 Signal receiver PCB Control PCB Shield plate INTELLIGENT EYE sensor PCB Display P...

Page 17: ...minal board 1 Remove the screw and remove the terminal board 3 Remove the signal receiver unit 1 Unfasten the 3 hooks 2 Unfasten the hook on the opposite side and lift up the signal receiver unit Step Procedure Points R10315 Terminal board R12277 Signal receiver unit R8262 ...

Page 18: ...er unit 4 Remove the INTELLIGENT EYE sensor PCB 1 Unfasten the 3 hooks and remove the INTELLIGENT EYE sensor PCB 2 Disconnect the connector S26 from the INTELLIGENT EYE sensor PCB Step Procedure Points R12278 Hook R8088 Signal receiver unit R8092 INTELLIGENT EYE sensor PCB R8093 S26 ...

Page 19: ...signal receiver PCB 2 Disconnect the connector S48 from the signal receiver PCB 6 Remove the display PCB The display PCB is positioned on the rear side of the signal receiver unit 1 The figure shows the connection of the wire harness for the display PCB Step Procedure Points R8090 Signal receiver PCB R8091 S48 R8094 Display PCB ...

Page 20: ... display PCB 7 Remove the control PCB 1 Unfasten the lower 2 hooks of the control PCB 2 Lift up the bottom of the control PCB and pull it out The control PCB is also fixed by 2 upper hooks When reassembling be sure to fit all the 4 hooks Step Procedure Points R10318 Hook R8096 LED 3 Green LED 1 Green S49 LED 2 Yellow R8097 Hook Control PCB R8098 ...

Page 21: ...nent parts S1 DC fan motor S25 INTELLIGENT EYE sensor PCB S26 control PCB S32 indoor heat exchanger thermistor S41 swing motors S46 display PCB S47 signal receiver PCB S48 control PCB S49 control PCB Step Procedure Points R16970 S32 S1 S47 S25 S46 S41 R8100 S48 S49 S26 LED2 Yellow LED3 Green LED1 Green ...

Page 22: ...ait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Appearance of the electrical box 2 Remove the screw 3 Remove the terminal board 4 Cut the clamp Control PCB Shield plate Signal receiver PCB Display PCB inside R13107 R13108 R13110 Terminal board R13109 ...

Page 23: ...e 21 5 Pull out the terminals 6 Unfasten the hooks and remove the shield plate 7 Remove the signal receiver PCB 3 hooks 8 Disconnect the connector S48 S48 control PCB Step Procedure Points R13111 R13112 Shield plate R13113 Signal receiver PCB R13114 S48 ...

Page 24: ...tach the signal receiver unit 10 Reverse the signal receiver unit 11 Detach the display PCB 4 hooks 12 Reverse the display PCB and disconnect the connector S49 S49 control PCB Step Procedure Points R13115 Signal receiver unit R13116 R13117 Display PCB R13118 S49 ...

Page 25: ...s of the control PCB The control PCB is also fixed by upper 2 hooks When reassembling be sure to fit all the 4 hooks 16 Remove the control PCB S1 DC fan motor S32 indoor heat exchanger thermistor S41 swing motors S46 display PCB S47 signal receiver PCB Step Procedure Points R13119 R13120 Thermistor Earth ground R8097 Hook Control PCB R13164 S1 S32 S47 S46 S41 ...

Page 26: ...efore disassembling work Step Procedure Points 1 Remove the swing motor for vertical blades 1 Lift the indoor unit with a wooden base 2 Remove the screw behind the drain hose and disconnect the drain hose 3 Remove the screw at the rear and remove the screws on the right and the left side of the swing motors for horizontal blades R10323 R10329 Drain hose R13748 Swing motor for horizontal blades ...

Page 27: ...ith a flat screwdriver 5 Remove the swing motor unit 6 Detach the interlock shaft from the swing motor with a flat screwdriver 7 Remove the vertical blade interlock with a flat screwdriver Step Procedure Points R13092 Vertical blade Pivot Interlock shaft R8126 Swing motor unit R8127 Interlock shaft R10331 Vertical blade interlock ...

Page 28: ...Swing Motors Pattern 1 Si041137 26 Removal Procedure 8 Remove the 2 screws 9 Remove the swing motor for vertical blades 10 Disconnect the connector Connector green Step Procedure Points R13573 Screw R10333 R10334 ...

Page 29: ...s opposite the horizontal blades do not move smoothly or noise may be heard 1 Set the swing motor for the upper blade first connector white 2 Then set the swing motor for the lower blade connector red 3 Fix both swing motors with a screw 1 Remove the screw and remove the swing motors for horizontal blades 2 Disconnect the harnesses from the motors Step Procedure Points R8131 Connector for lower bl...

Page 30: ...ades do not move smoothly or the noise may be heard 1 Set the motor for the upper blade first connector white 2 Then set the motor for the lower blade connector red 3 Fix the both motors with a screw 1 Remove the 3 screws 2 Disconnect the connectors to remove the swing motors for the horizontal blades 2 Remove the swing motor for vertical blades 1 Remove the screw on the rear side Pull out the dra...

Page 31: ... a flat screwdriver 4 Remove the swing motor unit for vertical blades 5 Detach the interlock shaft from the swing motor with a flat screwdriver 6 Remove the vertical blade interlock with a flat screwdriver Step Procedure Points R13092 Vertical blade Pivot Interlock shaft R13125 R13126 Interlock shaft R13127 Vertical blade interlock ...

Page 32: ... Swing Motors Pattern 2 Si041137 30 Removal Procedure 7 Remove the 2 screws 8 Remove the swing motor for vertical blades 9 Disconnect the connector Connector green Step Procedure Points R13128 Screw R13129 R10334 ...

Page 33: ...sconnecting the refrigerant piping If the refrigerant piping is disconnected with the compressor operating and the stop valve open air may be sucked in to generate an over pressure in refrigeration cycle thus resulting in pipe rupture or accidental injury Place a plastic sheet under the drain pan to prevent from wetting the floor with the remaining drain If the drain hose is embedded in the wall d...

Page 34: ... the piping fixture at the back of the indoor unit Remove the piping fixture 3 Slightly widen the auxiliary piping 4 Remove the 2 screws on the left side Caution When removing or reassembling the indoor heat exchanger be sure to wear gloves or wrap the indoor heat exchanger with cloth You may be injured by the fins Step Procedure Points R10622 Piping fixture R17120 R10546 ...

Page 35: ...rewdriver 6 After unfastening the lower hooks lift up the indoor heat exchanger by its right side When reassembling the indoor heat exchanger make sure that the right hooks upper and lower are fastened 7 Remove the indoor heat exchanger Step Procedure Points R13138 Upper hook R13139 Indoor heat exchanger Lower hook R13140 ...

Page 36: ...ng off all power supplies before disassembling work Step Procedure Points 1 Remove the right side plate Preparation Remove the indoor heat exchanger according to the Removal of Indoor Heat Exchanger 1 Remove the 2 screws and remove the right side plate 2 Release the fan motor wire harness from the hook R8112 R13502 Right side plate R8114 R8115 ...

Page 37: ... 2 screws of the fan motor fixing plate 4 Unfasten the hook of the fan motor fixing plate and remove the plate 2 Remove the fan motor 1 Dislocate the fan rotor by sliding it to the right Step Procedure Points R8116 Fan motor fixing plate R8117 R8118 R8119 Fan rotor ...

Page 38: ...n motor with approx 5 mm left 2 Tighten the screw until it stops Then give the screw one more turn 3 Rotate the fan rotor and confirm the fan motor and the fan rotor are installed appropriately 4 Tighten the screw completely if appropriate 5 If not appropriate go back to 1 3 Press the bearing ASSY from outside 4 Remove the bearing Step Procedure Points R8120 Lock screw Fan motor 5 mm Side face of ...

Page 39: ...Revision History Month Year Version Revised contents 08 2012 Si041137 First edition ...

Page 40: ...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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