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Daikin ATX20JV1B, Service Manual

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Daikin ATX20JV1B Service Manual Download Page 21

Si041051

Removal of Swing Motor / PCBs

Removal Procedure

19

4. Remove the control PCB.

1

Lift the shield plate (1) 
and unfasten the 2 
hooks.

2

Slide the shield plate 
(1) and remove it.

3

Release the harnesses 
from the hooks.

4

Disconnect the 
terminals from the 
terminal board with 
pliers.

Step

Procedure

Points

(R12061)

Hook

Shield plate (1)

(R12062)

(R14609)

Summary of Contents for ATX20JV1B

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Indoor Unit Inverter Wall Mounted Type 1 5 2 0 2 5 3 2 3 5 4 6 kW Class 9000 12000 Btu h Class Si041051 ...

Page 2: ...VJU FTXN12JEVJU FTXS12JEVJU FTXN25KEV1B FTXN35KEV1B FTXN25KV2C FTXP25JV2CW FTX25JEVM ATX20JV1B FTXN32KV2C FTXP32JV2CW FTX35JEVM ATX25JV1B FTXN25KV2W FTXP35JV2CW FTX20JV1B ATX35JV1B FTXN32KV2W FTXP25JV2CN FTX25JV1B FTXS35JV2CW FTXP32JV2CN FTX35JV1B FTXS35JV2CN FTXP35JV2CN FTXN25JEV1B FTXS35JV2CP FTXP25JV2CP FTXN35JEV1B FTXS46JV2CW FTXP32JV2CP FTXP35JV2CP FTXH25JV2C FTXH35JV2C FTXH25JV2CW FTXH35JV2C...

Page 3: ...ctrical Box Vertical Blades Pattern 1 8 6 Removal of Electrical Box Vertical Blades Pattern 2 12 7 Removal of Swing Motor PCBs 17 8 Removal of Indoor Heat Exchanger 21 9 Removal of Fan Rotor Fan Motor Pattern 1 24 10 Removal of Fan Rotor Fan Motor Pattern 2 27 11 Exchange of Piping Direction Drain Hose 30 Note The illustrations may be slightly different depending on the model ...

Page 4: ...ption When the ON OFF button is kept pressed for 5 seconds the forced cooling operation is performed for about 15 minutes 2 Remove the air filters 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 Insert the air filter with the FRONT mark faced up Be sure to insert the hooks at 2 lower positions when mount...

Page 5: ...the air filter and unfastening the projections from the air filter frame 3 Remove the Titanium apatite photocatalytic air purifying filter from its frame at 5 positions by bending it To prevent the damage do not remove the Titanium apatite photocatalytic air purifying filter from the frame when cleaning it The Titanium apatite photocatalytic air purifying filter is not marked for difference betwee...

Page 6: ...aft while bending the horizontal blade slightly The center shaft can be released easily by bending the blade Cautions for reassembling 1 Since the key pattern hook is provided rotate the horizontal blade and fit it to the right shaft first 2 Fit the horizontal blade to the center and left shafts 3 Unfasten the left shaft of the horizontal blade 4 Unfasten the right shaft of the horizontal blade R1...

Page 7: ...Si041051 Removal of Horizontal Blade Removal Procedure 5 5 Remove the horizontal blade Step Procedure Points R17333 ...

Page 8: ...anel over the position where it stops 2 Release the right rotary shaft The rotary shaft on each side can be released easily by sliding each shaft inward 3 Release the left rotary shaft 4 Remove the front panel When reassembling the front panel fit the right and left rotary shafts one by one into the grooves and fully push them in position Left side Front panel Right side R11627 Right Rotary shaft ...

Page 9: ...moval of Front Panel 2 The front grille has 3 hooks on the upper part Refer to the removal procedure in a reverse way when reassembling 3 Press each hook and also lift the grille up to unfasten the hooks 4 Pull the upper part of the front grille out and lift the lower part up and then remove the front grille The convex marks on the front panel indicate the position of the hooks When reassembling m...

Page 10: ...fore disassembling work Step Procedure Points 1 Disconnect the connecting wires Preparation Remove the front grille according to the Removal of Front Grille 1 Remove the screw of the service cover 2 Pull out the service cover down in the direction of the arrow 3 The figure shows the connections of wire harnesses R14600 Service cover R12042 Terminal board Electrical box Wire retaining plate Indoor ...

Page 11: ... black 1 power supply white 2 power supply red 3 transmission yellow green earth ground 6 Pull out the indoor heat exchanger thermistor Take care not to lose the clip of thermistor 2 Remove the electrical box 1 Remove the screw and release the earth ground wire Step Procedure Points R12044 Terminal board R11639 Connecting wires R12045 Indoor heat exchanger thermistor Clip R11268 Thermistor R17334 ...

Page 12: ... the hook 3 Remove the screw of the electrical box 4 Slide the electrical box to the right first and detach the horizontal blade from the electrical box 5 Pull the electrical box There is a hook on the bottom frame When reassembling fit the rear side of the electrical box to the hook Step Procedure Points R15844 S200 R14602 Hook R12048 R15845 R11657 Hook Bottom frame ...

Page 13: ...vertical blade ASSY is not marked for difference between right and left 1 Unfasten the hooks at the upper 2 positions 2 Unfasten the 3 hooks at the shaft mounting part by pressing them with a flat screwdriver 3 Remove the vertical blade ASSY Repeat the same procedure to remove the vertical blade ASSY on the other side Step Procedure Points Hook R8020 Vertical blade ASSY R8021 R8022 Hook R8023 ...

Page 14: ...ep Procedure Points 1 Disconnect the connecting wires Preparation Remove the front grille according to the Removal of Front Grille 1 Remove the screw of the service cover 2 Pull out the service cover down in the direction of the arrow 3 The figure shows the connections of wire harnesses 4 Remove the screw of the wire retaining plate R14600 Service cover R12042 Terminal board Electrical box Wire re...

Page 15: ... white 2 power supply red 3 transmission yellow green earth ground 6 Pull out the indoor heat exchanger thermistor Take care not to lose the clip of thermistor 2 Remove the electrical box 1 Remove the screw and disconnect the earth ground wire Step Procedure Points Terminal board R11639 Connecting wires R12045 Indoor heat exchanger thermistor Clip R11268 Thermistor Screw R12046 Earth ground wire ...

Page 16: ...m the hook 3 Remove the screw of the electrical box 4 Slide the electrical box to the right first and detach the horizontal blade from the electrical box 5 Pull the electrical box There is a hook on the bottom frame When reassembling fit the rear side of the electrical box to the hook Step Procedure Points R14601 S7 S1 R14602 Hook R12048 R15845 R11657 Hook Bottom frame ...

Page 17: ...n the 4 hooks at the bottom Remove the fan guard Repeat the same procedure to remove the fan guard on the other side 4 Remove the vertical blade ASSY A vertical blade ASSY has 6 fins It is impossible to replace only one fin The vertical blade ASSY is not marked for difference between right and left 1 Unfasten the hooks at the upper 2 positions Step Procedure Points Hook Fan guard Hook R14608 R1164...

Page 18: ... 16 Removal Procedure 2 Unfasten the 3 hooks at the shaft mounting part by pressing them with a flat screwdriver 3 Remove the vertical blade ASSY Repeat the same procedure to remove the vertical blade ASSY on the other side Step Procedure Points R8022 Hook R8023 ...

Page 19: ...rocedure Points 1 Remove the shield plate 2 Preparation Remove the electrical box according to the Removal of Electrical Box Vertical Blades 1 Unfasten the hooks at the upper 2 positions of the shield plate 2 2 Unfasten the hook at the lower position and remove the shield plate 2 2 Remove the swing motor 1 Remove the screw of the swing motor R14603 Hook Shield plate 2 Electrical box Hook R16650 Sw...

Page 20: ... hook and release the display PCB ASSY 2 Turn over the display PCB ASSY and unfasten the 3 hooks to remove the display PCB 3 Disconnect the connector S27 from the display PCB 4 The figure shows the component parts of the display PCB S27 for control PCB Step Procedure Points R8037 R14847 R17335 Hook Display PCB ASSY R11653 Hook Display PCB R14848 S27 TIMER lamp Signal receiver Operation lamp ON OFF...

Page 21: ...e control PCB 1 Lift the shield plate 1 and unfasten the 2 hooks 2 Slide the shield plate 1 and remove it 3 Release the harnesses from the hooks 4 Disconnect the terminals from the terminal board with pliers Step Procedure Points R12061 Hook Shield plate 1 R12062 R14609 ...

Page 22: ...6 swing motor S26 display PCB S32 indoor heat exchanger thermistor S200 fan motor Some models have no harness for S5 Pattern 2 S1 S7 fan motor S5 thermal fuse S6 swing motor S26 display PCB S32 indoor heat exchanger thermistor Some models have no harness for S5 Step Procedure Points R11943 Control PCB Hook Hook S32 S200 S24 S26 R15846 S26 S6 S32 S5 S200 Fuse 250 V 3 15 A R15847 S1 S5 S7 S32 S6 S26...

Page 23: ... in to generate an over pressure in the refrigeration cycle thus resulting in pipe rupture or accidental injury If the drain hose is embedded in the wall disconnect the drain hose beforehand 1 Remove the screws which fix the indoor unit to the installation plate 2 Lift the indoor unit with a wooden base 3 Pull out the drain hose Place a plastic sheet under the drain hose as remaining drain may lea...

Page 24: ...nut for liquid piping 2 Remove the indoor heat exchanger 1 Remove the indoor unit from the installation plate 2 Unfasten the hook of the piping fixture on the back of the indoor unit Step Procedure Points R17302 Gas piping Liquid piping R17303 Auxiliary piping Piping fixture R8038 R8039 ...

Page 25: ...r heat exchanger be sure to wear gloves or wrap it with cloth before proceeding to the work You may be injured by the fins 5 Push and unfasten the hook on the right side and lift up the indoor heat exchanger 6 Pull the indoor heat exchanger to the front side to unfasten the hooks completely and then remove it Step Procedure Points Auxiliary piping R8040 R17336 R11269 Hook Hook Screw Hook R8042 R80...

Page 26: ...re after turning 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 screw of the right side plate 2 Unfasten the hook of the right side plate 3 Remove the right side plate Right side plate R17337 Hook R8045 R8046 ...

Page 27: ...e fan rotor and the fan motor 1 The fan motor has 3 projections on the right side The fan rotor has a rotating shaft on the left side 2 Remove the fan rotor 3 Press the bearing from outside 4 Remove the bearing Step Procedure Points Fan rotor Fan motor R8047 R8048 Bearing R8049 R8050 ...

Page 28: ...6 Pull out the fan motor from the fan rotor to remove The magnet of the fan 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 Step Procedure Points R8051 Hook Motor cover Magnet Coil Fan motor R8052 R8053 ...

Page 29: ...re after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the right side panel Preparation Remove the indoor heat exchanger according to the Removal of Indoor Heat Exchanger 1 Remove the screw of the right side panel 2 Unfasten the hook of the right side panel 3 Remove the right side panel Right side panel R8044 R14539 Hook R14540 ...

Page 30: ...emove the fan rotor and the fan motor 1 The fan motor has 3 projections The fan rotor has a rotating shaft on the left side 2 Remove the fan rotor 3 Press the bearing from outside 4 Remove the bearing Step Procedure Points Fan rotor Fan motor R14541 R14542 Bearing R8049 R8050 ...

Page 31: ...the fan motor with approx 5 mm left 2 Tighten the screw until it stops Then turn the screw in one scroll 3 Move 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 6 Pull out the fan motor from the fan rotor Step Procedure Points R14544 Lock screw Fan motor R2808 Side face of rotor Sid...

Page 32: ... located at the left side with pliers and insert the removed drain plug into the right side with a hexagonal wrench 4 mm 3 Insert the drain hose to the left side and tighten it with the heat insulation fixing screw Caution Do not thrust in the drain plug with a sharp pointed tool like a screwdriver The drain plug may be broken resulting in water leakage After removing the drain hose to prevent wat...

Page 33: ...Revision History Month Year Version Revised contents 01 2013 Si041051 First edition ...

Page 34: ...ries 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 instructi...

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