Daikin ARXS20G4V1B Service Manual Download | Manualshive

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background image

PCBs

Si001273EC

10

Removal Procedure

9

Disconnect the
connectors [S50]
[S100].

[S50]: magnetic relay
[S100]: forced operation button

PCB

10

Disconnect the
connectors [HL3]
[HN3].

[HL3] [HN3]: filter PCB

11

Release the harnesses
from the hook.

12

Release the harness for
the outdoor
temperature thermistor.

Step

Procedure

Points

(R11862)

[S100]

[S50]

[HL3]

[HN3]

(R11863)

(R11864)

(R11865)

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10
11
12
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14
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Summary of Contents for ARXS20G4V1B

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Pair Type 2 0 2 5 3 5 4 2 kW Class 9000 12000 15000 Btu h Class Si001273EC...

Page 2: ...RKJ25NVM RKJ35NVM RXG25K3V1B RXG35K3V1B RKJ25NVM4 RKJ35NVM4 RXG20L2V1B RXG25L2V1B RKJ25NVMG RXG35L2V1B RKJ35NVMG RXS20K3V1B RKJ25NVMV RXS25K3V1B RKJ35NVMV RXS35K2V1B RKM09NV2S RXS35L2V1B RKM12NV2S RK...

Page 3: ...2 2 Fan Motor 4 3 Electrical Box 6 4 PCBs 8 5 Reactor Partition Plate 13 6 Sound Blankets 14 7 Four Way Valve 15 8 Compressor 18 Note The illustrations may be slightly different depending on the mode...

Page 4: ...valve cover has 5 hooks When reassembling make sure to fit all the 5 hooks 3 4 5 Remove the 2 screws and remove the top panel Remove the drip proof plate Remove the 4 screws and remove the discharge...

Page 5: ...Take care not to cut your finger by the fins of the outdoor heat exchanger 10 11 Remove the screw of the right side panel Lift up the right side panel and remove it When reassembling make sure to fit...

Page 6: ...ut of the outdoor fan Remove the outdoor fan Nut size M6 When reassembling align the mark of the outdoor fan with the D cut section of the motor shaft 3 Release the outdoor temperature thermistor 4 Di...

Page 7: ...tom frame 7 Open the 2 hooks and release the fan motor lead wire When reassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 8 Remove...

Page 8: ...s 1 Disconnect the connector S80 S80 four way valve coil Cooling only models have no harness for S80 2 Disconnect the connector S20 S20 electronic expansion valve coil 3 Disconnect the 2 connectors fo...

Page 9: ...S20 5 S70 6 S80 6 7 Cut the clamp Pull out the outdoor heat exchanger thermistor Be careful not to lose the clip for the thermistor 8 Release the discharge pipe thermistor Be careful not to lose the...

Page 10: ...without removing the electrical box by disconnecting the lead wires on the terminal board 1 Remove the screw on the terminal board 2 Release the 2 earth ground wires 3 Pull out the forced operation bu...

Page 11: ...for standby electricity saving and pull out the relay connector 5 Cut the clamp 6 Release the harness 7 8 Cut the clamps at the 2 locations Disconnect the connector S10 S10 filter PCB Step Procedure P...

Page 12: ...50 magnetic relay S100 forced operation button PCB 10 Disconnect the connectors HL3 HN3 HL3 HN3 filter PCB 11 Release the harnesses from the hook 12 Release the harness for the outdoor temperature the...

Page 13: ...Procedure 11 13 14 Remove the 7 screws Unfasten the 4 hooks and remove the main PCB 2 Remove the filter PCB 1 Release the harnesses from the hook 2 Cut the clamp Step Procedure Points R20689 R11869 F...

Page 14: ...rocedure 3 Release the harnesses from the hook 4 Release the harnesses from the 2 hooks 5 Remove the screw 6 7 Unfasten the 2 hooks Lift and remove the filter PCB Step Procedure Points Hook R11872 R11...

Page 15: ...fore disassembling work Step Procedure Points 1 Remove the reactor 1 Remove the screw and remove the reactor 2 Remove the partition plate 1 Remove the 2 screws 2 The partition plate has 2 hooks on the...

Page 16: ...rk Step Procedure Points 1 2 Remove the sound blanket top Remove the sound blanket outer Since the piping ports are torn easily remove the sound blankets carefully 3 Remove the sound blanket inner 4 P...

Page 17: ...or the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry Note Before working make sure that the refrigerant gas is empty in the circuit Be sure to ap...

Page 18: ...minal cover 3 Disconnect the lead wires of the compressor and the overload protector 4 Remove the screw and remove the four way valve coil Step Procedure Points R7234 Terminal cover V W U R20182 Red U...

Page 19: ...Si001273EC Four Way Valve Removal Procedure 17 5 Remove the sheets of putty 6 Heat up the 4 brazed parts and remove the four way valve Step Procedure Points R7248 R20183 Four way valve R7250...

Page 20: ...brazing Note Before working make sure that the refrigerant gas is empty in the circuit Be sure to apply nitrogen replacement when heating up the brazed part Do not use a metal saw for cutting pipes b...

Page 21: ...001273EC Compressor Removal Procedure 19 3 Heat up the brazed part of the suction side pipe and disconnect it 4 Lift up the compressor and remove it Step Procedure Points R20691 Suction side pipe R725...

Page 22: ...n 03 2014 Si001273EA Model addition RXG20 25 35L2V1B RXS35L2V1B 07 2014 Si001273EB Model addition RKM09 12 15NV2S RKM25 35 42NVMG RKV25 35NVM RKV25 35NVM4 RKV25 35NVMV 02 2015 Si001273EC Model additio...

Page 23: ...ies 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 acces...

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