Daikin ARXS42G3V1B Service Manual Download Page 17 | Manualshive

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Si001277

Four Way Valve / Electronic Expansion Valve

Removal Procedure

15

2. Remove the four way

valve and electronic
expansion valve.

1

Heat up the 2 brazed
parts of the electronic
expansion valve and
remove it.

2

3

Heat up the brazed
parts of the four way
valve.

Pull the pipe with pliers
and disconnect.

Step

Procedure

Points

(R8206)

(R8207)

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15
16
17
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19
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Summary of Contents for ARXS42G3V1B

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Pair Type 4 2 kW Class Si001277 ...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zHeat Pump ARXS42G3V1B RXS42K2V1B ...

Page 3: ...ter Panels 2 2 Electrical Box 3 3 PCB 6 4 Partition Plate Sound Blankets 8 5 Outdoor Fan Fan Motor 10 6 Thermistors 12 7 Four Way Valve Electronic Expansion Valve 13 8 Compressor 16 Note The illustrations may be slightly different depending on the model ...

Page 4: ...nel Remove the 8 screws and remove the front panel The front panel has 4 hooks 3 Remove the 4 screws and remove the discharge grille When reassembling make sure to fit the 4 hooks 4 Remove the screw and remove the stop valve cover The stop valve cover is united with the shield plate When reassembling make sure to fit the 5 hooks R18665 Hook Hook R9364 R8139 Stop valve cover R12213 Shield plate Top...

Page 5: ...emove all the screws to disconnect the power supply cables and the connecting wires When reassembling fasten the wires with screws on the terminal board 3 Release the outdoor temperature thermistor 4 Lift up the protection net and remove it 5 Remove the 7 screws and remove the right side panel R18666 Wire fixture Power supply cable Connecting wire Terminal board R12193 Outdoor temperature thermist...

Page 6: ...ronic expansion valve coil S40 overload protector S80 four way valve coil S90 thermistors 8 Disconnect the relay connector for the compressor 9 Disconnect the 2 connectors for the reactor When reassembling you can connect the 2 harnesses in either way regardless of the color Step Procedure Points R0254 S70 R18668 S40 S90 S20 S80 R0259 R0260 ...

Page 7: ...ful not to lose the fixture for the thermistor 11 Detach the clamp for the thermistors from the electrical box 12 Remove the screw in front of the electrical box 13 Lift and remove the electrical box Step Procedure Points R12197 Discharge pipe thermistor R18789 Fixture R0262 R12196 R0263 R0264 ...

Page 8: ...he electrical box cover Detach the insulation sheet The trimmed part goes front 3 4 5 Remove the 2 screws of the earth terminals Release the earth wire from the hook Remove the screw of the terminal board 6 Remove the 2 screws and detach the clip to remove the radiation shield plate Electrical box cover Insulation sheet R18895 Terminal board Earth terminal R18670 Hook R12198 Radiation shield plate...

Page 9: ...screws of the PCB Lift up the back side slightly and unfasten the 3 hooks of the front When reassembling make sure to fit the 3 hooks of the electrical box 10 Lift up and remove the PCB 11 Remove the screw and remove the radiation fin Step Procedure Points R8162 R18671 PCB Hook R8168 R12214 Radiation fin ...

Page 10: ...he partition plate When reassembling fit the lower hooks into the bottom frame 1 Remove the 2 screws 2 3 The partition plate has hooks on the lower side Lift and remove the partition plate Remove the screw to remove the reactor 2 Remove of the sound blanket Since the piping ports are torn easily remove the blanket carefully 1 Remove the sound blanket outer R12282 Partition plate R14110 R14111 Reac...

Page 11: ...ts Removal Procedure 9 2 Remove the sound blanket top upper 3 Remove the sound blanket top lower 4 Remove the sound blanket inner Step Procedure Points R12200 Sound blanket top upper R8178 Sound blanket top lower R12201 Sound blanket inner ...

Page 12: ... before disassembling work Step Procedure Points 1 Remove the nut and 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 2 Disconnect the connector S70 S70 fan motor 3 Release the fan motor lead wire from the hooks R18672 D cut Nut Outdoor fan 10 mm 0 39 inch R18954 R8184 S70 R8185 ...

Page 13: ...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 6 Remove the 4 screws and 4 rubber vibration isolators to remove the fan motor Step Procedure Points R12202 Fan motor fixing frame R8187 R11835 R3249 Lead wire Outdoor fan R8190 R18896 Rubber vibration isolator ...

Page 14: ...rocedure Points 1 Release the discharge pipe thermistor Be careful not to lose the fixture for the thermistor 2 Cut the clamp and pull out the outdoor heat exchanger thermistor The thermistors for outdoor temperature discharge pipe outdoor heat exchanger are united as one assembly R8192 Discharge pipe thermistor R18789 Fixture R8193 Outdoor heat exchanger thermistor R8194 ...

Page 15: ... F For 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 apply nitrogen replacement when heating up the brazed part Do not use a metal saw for cutting pipes by all means because the sawdust comes into the circuit When withdrawing the pipes be careful not ...

Page 16: ...expansion valve coil 3 Remove the putty 4 Remove the terminal cover 5 6 Disconnect the lead wires of the compressor Unfasten the hooks with a flat screwdriver to remove the overload protector Step Procedure Points R8204 R8205 R8195 Terminal cover R18897 Overload protector Red U Yellow V Blue W U W V ...

Page 17: ...re 15 2 Remove the four way valve and electronic expansion valve 1 Heat up the 2 brazed parts of the electronic expansion valve and remove it 2 3 Heat up the brazed parts of the four way valve Pull the pipe with pliers and disconnect Step Procedure Points R8206 R8207 ...

Page 18: ...ide the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C 248 F For 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 apply nitrogen replacement when heating up the brazed part Do not use a metal saw for cutting pipes b...

Page 19: ...move the protection bushing Remove the 2 nuts of the compressor 6 Heat up the brazed part of the discharge side and disconnect 7 Heat up the brazed part of the suction side and disconnect 8 Lift up the compressor and remove it Step Procedure Points R18897 Overload protector Red U Yellow V Blue W U W V R18673 Protection bushing Nut R18898 Discharge side Suction side R8202 ...

Page 20: ...Revision History Month Year Version Revised contents 04 2013 Si001277 First edition ...

Page 21: ...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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