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Removal of Electrical Box / PCBs

Si001073

16

Removal Procedure

2

Pull out the terminals 
from the terminal board.

1: black, upper
2: white, lower
3: red, upper
(

) : green, lower

3

Cut the clamp.

4

Remove the 3 screws 
and remove the reactor.

5

Disconnect the 3 
connectors for the filter 
PCB [S10] [HN3] [HL3].

Step

Procedure

Points

Terminal board

(R14804)

(R14805)

Reactor

(R11777)

[S10]

(R17309)

[HN3]: 
blue

[HL3]: 
orange

Содержание ARX20JV1B

Страница 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Pair Type 1 5 2 0 2 5 3 5 kW Class 9000 12000 Btu h Class Si001073 ...

Страница 2: ...zHeat Pump RK15JEVM RX20JV1B RK20JEVM RX25JV1B RK25JEVM RX35JV1B RK35JEVM RX25JEVM RKN09JEVJU RX35JEVM RKN12JEVJU RXN09JEVJU RKN25JEVM RXN12JEVJU RKN35JEVM RXN25JEV1B RKS09JEVJU RXN35JEV1B RKS12JEVJU RXS09JEVJU RXS12JEVJU RXP35JV2C ARX20JV1B ARX25JV1B ARX35JV1B ...

Страница 3: ... of Outdoor Fan Fan Motor 8 4 Removal of Electrical Box PCBs 10 5 Removal of Sound Blankets 21 6 Removal of Electronic Expansion Valve ASSY 23 7 Removal of Four Way Valve 24 8 Removal of Compressor 26 Note The illustrations may be slightly different depending on the model The illustrations are for heat pump models as representative ...

Страница 4: ...assembling work Step Procedure Points 1 Appearance features Take care not to cut your finger by the fins of the outdoor heat exchanger 2 Remove the panels The stop valve cover is united with the shield plate When reassembling make sure to fit the 3 hooks 1 Remove the screw of the stop valve cover Pull down the stop valve cover and remove it R10742 R14768 R16329 Stop valve cover R16330 Shield plate...

Страница 5: ...t panel 4 Lift up the left side and unfasten the hooks 5 Unfasten the right side hooks and remove the front panel 6 The discharge grille has 2 projections to prevent its rotation Press the projection from the rear side and rotate the discharge grille to remove it Step Procedure Points Top panel Front panel R16331 R17304 R17306 R17307 Projection rear side Discharge grille ...

Страница 6: ...assembling work Step Procedure Points 1 Appearance features Take care not to cut your finger by the fins of the outdoor heat exchanger 2 Remove the panels The stop valve cover is united with the shield plate When reassembling make sure to fit the 3 hooks 1 Remove the screw of the stop valve cover Pull down the stop valve cover and remove it R10707 R14768 R10709 Stop valve cover R14606 Shield plate...

Страница 7: ...l 3 Remove the 5 screws of the front panel 4 Lift up the left side and unfasten the hooks 5 Unfasten the right side hooks and remove the front panel 6 7 Remove the 4 screws of the discharge grille Unfasten the 6 hooks and remove the discharge grille Step Procedure Points Top panel Front panel R14486 R14488 R14487 R14489 Discharge grille ...

Страница 8: ...Pattern 2 Si001073 6 Removal Procedure 3 Remove the shield plate and the conduit The U S models only 1 Remove the 2 screws 2 Remove the shield plate 3 Remove the 2 screws Step Procedure Points R11749 R11750 Shield plate R11751 ...

Страница 9: ...Si001073 Removal of Outer Panels Pattern 2 Removal Procedure 7 4 Remove the conduit 5 Remove the conduit mounting plate Step Procedure Points Conduit R11752 Conduit mounting plate R11753 ...

Страница 10: ...outdoor fan Remove the outdoor fan When reassembling align the mark of the outdoor fan with the D cut section of the motor shaft 2 Remove the fan motor 1 Disconnect the connector for the fan motor S70 2 Release the fan motor lead wire from the hooks 3 Remove the screw and remove the fan motor fixing frame When reassembling put the fan motor lead wire through the back of the fan motor so as not to ...

Страница 11: ...Si001073 Removal of Outdoor Fan Fan Motor Removal Procedure 9 4 Release the fan motor lead wire from the hooks 5 Remove the 3 screws to remove the fan motor Step Procedure Points R14778 R14779 Fan motor ...

Страница 12: ...e the right side panel Preparation Remove the panels according to the Removal of Outer Panels 1 Release the outdoor temperature thermistor 2 Remove the screws and release the connecting wire and the power supply wire 3 Remove the 3 screws and remove the wire clamp 4 Remove the screw on the rear side of the right side panel R17310 Outdoor temperature thermistor R17285 Connecting wire Power supply w...

Страница 13: ...ws on the right side panel 6 Unfasten the hook on the rear side When reassembling make sure to fit the hook 7 Unfasten the hook above the electrical box 8 Unfasten the hook and remove the right side panel Step Procedure Points R14785 Hook R14786 R14787 R14788 Right side panel Hook ...

Страница 14: ... fixture for thermistor When reassembling do not insert the thermistor up to the dent of fixture 1 Release the discharge pipe thermistor 2 Release the outdoor heat exchanger thermistor 3 Cut the clamp Step Procedure Points Discharge pipe thermistor R14789 Dent Fixture R11740 R14790 Outdoor heat exchanger thermistor R14792 ...

Страница 15: ...tronic components mounting plate 5 Release the harnesses 6 Disconnect the connector for the thermistors S90 S90 outdoor temperature thermistor outdoor heat exchanger thermistor discharge pipe thermistor 7 Remove the thermistor ASSY Step Procedure Points Electronic components mounting plate R14795 R14796 S90 R14797 R14798 ...

Страница 16: ...rical box 1 Disconnect the connector for the overload protector S40 2 Disconnect the connector for the four way valve coil S80 3 Disconnect the relay connector for the compressor motor 4 Release the harnesses from the hook Step Procedure Points S40 R14799 S80 R11772 R11774 R14800 ...

Страница 17: ...n the hook of the electrical box from the partition plate with a flat screwdriver The electrical box can be removed without a screwdriver 7 Lift and remove the electrical box 4 Remove the control PCB 1 Disconnect the 2 terminals of the reactor Step Procedure Points R14801 S20 R7318 Electrical box R14802 R14803 Reactor Brown White Control PCB ...

Страница 18: ...m the terminal board 1 black upper 2 white lower 3 red upper green lower 3 Cut the clamp 4 Remove the 3 screws and remove the reactor 5 Disconnect the 3 connectors for the filter PCB S10 HN3 HL3 Step Procedure Points Terminal board R14804 R14805 Reactor R11777 S10 R17309 HN3 blue HL3 orange ...

Страница 19: ...cal Box PCBs Removal Procedure 17 6 Release the harnesses 7 Remove the 5 screws of the control PCB 8 Remove the screw of the earth wire 9 Remove the plate with a flat screwdriver Step Procedure Points R11782 R14808 R14809 R14810 ...

Страница 20: ...and remove the control PCB 13 Feature of the control PCB S10 HN3 HL3 filter PCB S20 electronic expansion valve coil S40 overload protector S70 fan motor S80 four way valve coil S90 thermistors 5 Remove the filter PCB 1 Cut the clamp Step Procedure Points R14811 R14812 S70 S10 S90 S40 S20 S80 HL3 HN3 R11784 R14813 ...

Страница 21: ...Si001073 Removal of Electrical Box PCBs Removal Procedure 19 2 Release the harnesses from the hooks 3 Remove the screw Step Procedure Points R14814 R14815 R14816 ...

Страница 22: ...Removal of Electrical Box PCBs Si001073 20 Removal Procedure 4 Unfasten the 2 hooks 5 Release the harnesses 6 Remove the filter PCB Step Procedure Points R14817 R14818 R14819 Filter PCB ...

Страница 23: ...turning off all power supplies before disassembling work Step Procedure Points 1 Remove the partition plate Some models have 3 screws 1 Remove the 2 screws 2 The partition plate has a hook on the lower side Lift and pull the partition plate and remove it When reassembling fit the lower hook into the bottom frame R17286 R14821 Partition plate Hook ...

Страница 24: ... torn easily remove the blanket carefully 1 Lift and remove the sound blanket top 2 Pull the sound blankets outer and inner 2 out Some models have no sound blanket inner 2 3 Pull the sound blanket inner 1 out Step Procedure Points Sound blanket top R17287 Sound blanket outer Sound blanket inner 2 R14823 Sound blanket inner 1 R14824 ...

Страница 25: ... the electronic expansion valve because it contains plastic parts They may melt with heat and cause operation failure Replace the whole assembly Caution Do not directly heat the electronic expansion valve Wrap the electronic expansion valve with wet cloth and provide water so that the cloth does not dry Keep below 120 C Caution From the viewpoint of global environment protection do not discharge t...

Страница 26: ...disassembling work Step Procedure Points 1 Remove the peripheries 1 Remove the terminal cover 2 Remove the screw and remove the four way valve coil 3 Disconnect the terminals of the compressor 4 Remove the overload protector R15005 Terminal cover R12653 There are 2 hooks at the inner side of the terminal cover R11799 Four way valve coil R14529 U red V yellow W blue Overload protector ...

Страница 27: ... with wet cloth and provide water so that the cloth does not dry In case of difficulty with gas brazing machine 1 Disconnect the brazed part where is easy to disconnect and restore 2 Cut pipes on the main unit with a tube cutter in order to make it easy to disconnect Before working make sure that the refrigerant gas is empty in the circuit Be sure to apply nitrogen replacement when heating up the ...

Страница 28: ...the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry In case of difficulty with gas brazing machine 1 Disconnect the brazed part where is easy to disconnect and restore 2 Cut pipes on the main unit with a tube cutter in order to make it easy to disconnect 1 Remove the four way valve the terminal cover and the lead wire for the compressor so as no...

Страница 29: ...Revision History Month Year Version Revised contents 01 2013 Si001073 First edition ...

Страница 30: ...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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