Daikin ATXG25EV1B Service Manual

Removal procedure 2.5/3.5 kw class, indoor unit, inverter, wall mounted type, heat pump

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Page 1 Si04-858 REMOVAL PROCEDURE S E R V I C E M A N U A L 2.5/3.5 kW Class Indoor Unit Inverter Wall Mounted Type...
Page 2 Service Manual Removal Procedure Indoor Unit Heat Pump ATXG25EV1B ATXG35EV1B FTXG25EV1BW FTXG35EV1BW FTXG25EV1BS FTXG35EV1BS FTXG25EVMAW FTXG35EVMAW FTXG25EVMAS FTXG35EVMAS FTXG25FVMAW FTXG35FVMAW FTXG25FVMAS FTXG35FVMAS...
Page 3: Table Of Contents
Si04-858 Table of Contents 1. Removal of Air Filter................2 2. Removal of Front Grille ................4 3. Removal of Assembly of Front Panel Mechanism ........10 4. Removal of Lamp Cover ...............13 5. Removal of Horizontal Blade..............14 6. Removal of Reduction Motor..............16 7.
Page 4: Removal Of Air Filter
Removal of Air Filter Si04-858 1. Removal of Air Filter Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Features Front panel (top) Slot-in panel Room temperature sensor (R5001) Intelligent eye lamp...
Page 5 Si04-858 Removal of Air Filter Step Procedure Points Lift an air filter upwards The right and left air filters slightly and then pull it are interchangeable. out downwards. Insert the air filters along grooves when installing. When installing, insert 2 hooks of the air filter completely.
Page 6: Removal Of Front Grille
Removal of Front Grille Si04-858 2. Removal of Front Grille Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the front panel. Open the front panel to the horizontal position.
Page 7 Si04-858 Removal of Front Grille Step Procedure Points The slot-in panel is fixed only at the both ends. (R5011) When assembling, fit the axes of the slot-in panel from above. Push the lower part of the slot-in panel and attach to the running gear.
Page 8 Removal of Front Grille Si04-858 Step Procedure Points The service cover has 2 hooks on the right side and 4 hooks on the lower side. Hooks Hooks (R5014) When assembling, fit the right side hooks and insert the lower hooks while bending the service cover.
Page 9 Si04-858 Removal of Front Grille Step Procedure Points Pull down and remove the service cover of electrical box. (R3779) Loosen the screw on the fixing plate. (R3780) Push the white section on the terminal board and release the relay wires. (R3781) Removal Procedure...
Page 10 Removal of Front Grille Si04-858 Step Procedure Points 4. Remove the front grille. The front grille has no screw inside flaps. Loosen the 5 screws. (R5017) The front grille has 3 Hooks hooks on the upper side. (R5018) Lift the upper part of the Be careful not to cut your front grille and release finger by the fins of the heat...
Page 11 Si04-858 Removal of Front Grille Step Procedure Points Release the both sides hooks. (R5021) (R5073) Pull the front grille out When assembling, install the horizontally and remove front grille horizontally so as not to stuff the flap inside. When assembling, make sure the three hooks are caught properly.
Page 12: Removal Of Assembly Of Front Panel Mechanism
Removal of Assembly of Front Panel Mechanism Si04-858 3. Removal of Assembly of Front Panel Mechanism Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the front grille. 1.
Page 13 Si04-858 Removal of Assembly of Front Panel Mechanism Step Procedure Points Loosen the 2 screws of the assembly (right). (R5027) Remove the assembly. When assembling, insert the lower rack plate first. Lower rack plate (R5028) (R5029) (R5030) Removal Procedure...
Page 14 Removal of Assembly of Front Panel Mechanism Si04-858 Step Procedure Points 2. Remove the lower rack plate. Loosen the 3 screws of the left assembly cover. (R5031) Hold the assembly When you demand small horizontally and release parts like cogs and rollers, the upper hook.
Page 15: Removal Of Lamp Cover
Si04-858 Removal of Lamp Cover 4. Removal of Lamp Cover Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the front grille. 1. Remove the lamp cover. Release the 2 hooks carefully.
Page 16: Removal Of Horizontal Blade
Removal of Horizontal Blade Si04-858 5. Removal of Horizontal Blade Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the horizontal The horizontal blade is blade.
Page 17 Si04-858 Removal of Horizontal Blade Step Procedure Points 2. Remove the swing motor. The swing motor for horizontal blade is on the left Pull out and remove the side. swing motor connector. (R5040) Loosen the screw. (R5041) Pull toward left and The axis has a keyhole.
Page 18: Removal Of Reduction Motor
Removal of Reduction Motor Si04-858 6. Removal of Reduction Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the front grille. 1. Remove the assembly of reduction motor.
Page 19 Si04-858 Removal of Reduction Motor Step Procedure Points 2. Remove the reduction motor. Loosen the screw. (R5047) Undo the one hook on the opposite upper side. (R5048) Undo the one hook in the center. (R5049) Removal Procedure...
Page 20 Removal of Reduction Motor Si04-858 Step Procedure Points Hold the cog horizontally and open the motor side toward (R5050) Layout of the harness of the motor. (R5051) Lift and remove the reduction motor. (R5052) Pull and disconnect the connector for the motor. (R5053) Removal Procedure...
Page 21: Removal Of Outlet Grille
Si04-858 Removal of Outlet Grille 7. Removal of Outlet Grille Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the front grille. Remove the assembly of the reduction motor.
Page 22: Removal Of Vertical Blades And Swing Motor
Removal of Vertical Blades and Swing Motor Si04-858 8. Removal of Vertical Blades and Swing Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the assembly of the outlet grille.
Page 23 Si04-858 Removal of Vertical Blades and Swing Motor Step Procedure Points Remove the interlock rod from the vertical blades. (R3834) (R3835) Pull out the interlock You cannot dismantle the rod from the swing caulking section. motor side. (R5054) (R5055) Push the hooks on the back of the vertical blades and remove.
Page 24 Removal of Vertical Blades and Swing Motor Si04-858 Step Procedure Points 2. Remove the swing motor. Disconnect the connector for the swing motor. (R3840) Loosen the screw and Swing motor for horizontal blades remove the swing motor. (R3841) (R3842) Peel the fixing tape. (R3843) Removal Procedure...
Page 25 Si04-858 Removal of Vertical Blades and Swing Motor Step Procedure Points Loosen the screw and The projection is fragile. Be pull out the swing careful so as not to break it. motor. Swing motor for vertical blades Projection (R5056) Disconnect the connector for the swing motor.
Page 26: Removal Of Electrical Box
Removal of Electrical Box Si04-858 9. Removal of Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the front grille. Discharge the static Drip proof plate electricity from your body 1.
Page 27 Si04-858 Removal of Electrical Box Step Procedure Points Push the hook on the right side and remove the electrical box cover. (R5058) Layout of the wiring (R5059) Loosen the screw of the earth wire. (R5060) Removal Procedure...
Page 28 Removal of Electrical Box Si04-858 Step Procedure Points Disconnect the The harnesses for the connector for the swing horizontal swing motor and motors for horizontal the vertical swing motor are and vertical blades united. (S41). (R3857) Release the harness from the hook. Hook (R3858) Disconnect the...
Page 29 Si04-858 Removal of Electrical Box Step Procedure Points Disconnect the connector for the reduction motor (front panel mechanism) (S49). (R3861) Release the harness from the hook. (R3862) Release the heat Pay attention so as not to exchanger thermistor. lose the clip. Heat exchanger thermistor Clip...
Page 30 Removal of Electrical Box Si04-858 Step Procedure Points Layout of the lead wire for the heat exchanger thermistor Hook Hook Piping (R3866) Loosen the screw of the electrical box. (R5061) Tilt the front part of the electrical box to the right slightly and pull it out.
Page 31 Si04-858 Removal of Electrical Box Step Procedure Points When assembling, push the electrical box upright and make sure to fit the hook on the backside. (R3870) Removal Procedure...
Page 32: Removal Of Pcb
Removal of PCB Si04-858 10.Removal of PCB Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the electrical box. 1. Remove the control PCB. Lift up the cover of the electrical box and open (R3871) Release the right hook...
Page 33 Si04-858 Removal of PCB Step Procedure Points Loosen the screws of the earth wire. (R3873) Release the front hook and the 2 upper hooks, and remove the shelter. Shelter (R3874) (R3875) Removal Procedure...
Page 34 Removal of PCB Si04-858 Step Procedure Points Layout of the wiring S21(HA) Heat exchanger thermistor Limit switch Terminal board (R3876) Loosen the screw and pull out the terminal board. (R3877) (R3878) Removal Procedure...
Page 35 Si04-858 Removal of PCB Step Procedure Points Pull out the limit switch. (R3879) Disconnect the Pb free soldering is adopted terminals from the for PCB. board. When replacing PCB, use the particular solder and iron. Black······(1) White······(2) Red ········(3) (R3880) Cut the clamps.
Page 36 Removal of PCB Si04-858 Step Procedure Points Release the hooks and draw out the harness from the ditch. Hook Hook (R3883) Loosen the 2 screws and remove the PCB. (R3884) (R3885) Control PCB S51JB JA JC (R5062) Removal Procedure...
Page 37 Si04-858 Removal of PCB Step Procedure Points 2. Remove the signal receiver PCB. INTELLIGENT EYE PCB Signal receiver Buzzer ON/OFF switch Release the hook with a (R19143) flat screwdriver. (R3888) Release the hook and remove the receiver unit. Hook (R3889) Release the 2 hooks and remove the signal receiver PCB.
Page 38: Removal Of Heat Exchanger
Removal of Heat Exchanger Si04-858 11.Removal of Heat Exchanger Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step Remove the electrical You can detach the indoor box. unit without removing the assembly of the outlet grille.
Page 39 Si04-858 Removal of Heat Exchanger Step Procedure Points 3. Remove the piping fixture plate. Fixture plate (R3898) Release the 2 hooks with a flat screwdriver from the front side. (R3899) Release the hook from the back side. Lift up the lower part of the fixture plate and remove it.
Page 40 Removal of Heat Exchanger Si04-858 Step Procedure Points 4. Remove the heat exchanger. Auxiliary piping Slightly widen the auxiliary piping. (R19073) Loosen the 2 screws on the left. (R3903) Push the fixing hook on Caution the right side and lift the When removing or heat exchanger.
Page 41: Removal Of Fan Rotor And Fan Motor
Si04-858 Removal of Fan Rotor and Fan Motor 12.Removal of Fan Rotor and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Step 1. Remove the right side plate.
Page 42 Removal of Fan Rotor and Fan Motor Si04-858 Step Procedure Points 3. Remove the bearing. Lift up the right part of the fan rotor and motor, and slide them to the rightward to remove. Harness path Fan rotor Fan motor (R3911) (R3912) (R3913)
Page 43 Si04-858 Removal of Fan Rotor and Fan Motor Step Procedure Points Hold the lower outside of the bearing. Push it inwards and lift to release the hook. Bearing (R3914) Hook (R3915) 4. Remove the fan motor. Loosen the fixing screw and remove the fan Fan rotor motor.
Page 44 Revision History Month / Year Version Revised contents 06 / 2013 Si04-858 First edition...
Page 45 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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