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Daikin RXL12QMVJU, Service Manual

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Daikin RXL12QMVJU Service Manual Download Page 12

Electrical Box / PCB

Si001655E

10

Removal Procedure

7

Disconnect the 
connector [S90].

[S90]: thermistors

8

Pull out the clamp from 
the bottom.

9

Remove the screw and 
lift up the electrical box 
to remove it.

„

When reassembling, make 
sure to catch the hook at the 
top back of the electrical 
box.

Step

Procedure

Points

[S90]

(R20398)

Clamp

(R20399)

Electrical box

(R20400)

Hook

(R20401)

Summary of Contents for RXL12QMVJU

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Pair Type 12000 Btu h Class Si001655E...

Page 2: ...Service Manual Removal Procedure Outdoor Unit zHeat Pump RXL12QMVJU...

Page 3: ...le of Contents 1 Outer Panels 2 2 Outdoor Fan Fan Motor 4 3 Drain Pan Heater Option 6 4 Electrical Box PCB 8 5 Thermistor ASSY 12 6 Sound Blankets Partition Plate 16 7 Electronic Expansion Valve Coil...

Page 4: ...embling work Step Procedure Points 1 2 Remove the 3 screws and remove the top panel Remove the 4 screws of the front panel 3 4 Unfasten the 3 left side hooks and then the 2 right side hooks Remove the...

Page 5: ...Si001655E Outer Panels Removal Procedure 3 6 Unfasten the 2 hooks on the top and remove the discharge grille Step Procedure Points Hook Discharge grille R20381...

Page 6: ...2 Release the fan motor lead wire from the groove 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 3 4 Remove the nut of t...

Page 7: ...frame When reassembling fit the 2 lower hooks into the bottom frame 6 Open the 3 hooks and release the fan motor lead wire 7 Remove the 3 screws from the fan motor 8 Remove the fan motor Step Procedur...

Page 8: ...for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Disconnect the 2 connectors from the terminal board 1 black back 2 white back 2 Remove th...

Page 9: ...l Procedure 7 4 Lift the outdoor heat exchanger slightly upward and pull the drain pan heater forward to remove it Be careful not to get cut by heat exchanger fins Step Procedure Points Outdoor heat e...

Page 10: ...white front 3 red front When reassembling wind the earth ground wire around other wires and fix them with a clamp Make sure the wires do not touch the four way valve 1 Cut the clamp and disconnect th...

Page 11: ...dure 9 4 Disconnect the connector S20 S20 electronic expansion valve coil 5 Disconnect the connector S40 S40 overload protector 6 Disconnect the relay connector for compressor Step Procedure Points S2...

Page 12: ...S90 thermistors 8 Pull out the clamp from the bottom 9 Remove the screw and lift up the electrical box to remove it When reassembling make sure to catch the hook at the top back of the electrical box...

Page 13: ...ure 11 2 Remove the PCB 1 Remove the earth ground screw 2 3 Remove the 5 screws of the PCB Unfasten the 2 spacers and the 3 hooks from the PCB 4 Remove the PCB Step Procedure Points Earth ground screw...

Page 14: ...oints 1 Remove the screw of the stop valve cover 2 Slide the stop valve cover downward and remove it When reassembling make sure that the 4 hooks are securely fastened 3 Remove the 2 screws and lift u...

Page 15: ...n on top Be sure to catch them all when reassembling 5 Remove the 7 screws on the terminal board and disconnect the connecting wire and the power supply wire 6 Pull out the outdoor temperature thermis...

Page 16: ...he 2 hooks Remove the right side panel When reassembling make sure that the 2 hooks are securely fastened 10 11 Cut the clamp Pull out the outdoor heat exchanger thermistor Be careful not to lose the...

Page 17: ...ket top and pull out the discharge pipe temperature thermistor Be careful not to lose the fixture for the thermistor 13 Remove the thermistor ASSY Step Procedure Points Discharge pipe temperature ther...

Page 18: ...lies before disassembling work Step Procedure Points 1 Remove the sound blankets Since the piping ports on the sound blanket are torn easily remove the blanket carefully 1 Remove the sound blanket top...

Page 19: ...late Removal Procedure 17 2 Remove the partition plate 1 Remove the 2 screws 2 Lift up the partition plate and remove it When reassembling fit the hook on the bottom frame Step Procedure Points R20418...

Page 20: ...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...

Page 21: ...nd remove the four way valve coil 3 Remove the terminal cover 4 5 Remove the protection bushing Disconnect the compressor lead wires and the overload protector Step Procedure Points Four way valve coi...

Page 22: ...c Expansion Valve Coil Four Way Valve Si001655E 20 Removal Procedure 6 7 Remove the putty Heat up the 4 brazed parts and remove the four way valve Step Procedure Points Four way valve Putty Brazed par...

Page 23: ...refrigerant gas Restore the piping by non oxidation 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 bra...

Page 24: ...d part of the discharge side pipe and disconnect it Heat up the brazed part of the suction side pipe and disconnect it Remove the 3 nuts of the compressor Lift up the compressor and remove it Step Pro...

Page 25: ...Revision History Month Year Version Revised contents 03 2016 Si001655E First edition...

Page 26: ...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 acc...

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