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BP Unit

Si181095

24

Removal Procedure

3

Disconnect the
connectors for the
electronic expansion
valve [X20A] [X21A]
[X22A] [X23A] and the
connector for the
thermistors [X90A].

[X20A]: bypass
[X21A]: for room A
[X22A]: for room B
[X23A]: for room C

4

Remove the screw of
the wire harness band.

5

Remove the screw of
the earth wire.

Step

Procedure

Points

(R12988)

[X23A]

[X90A]

[X22A]

[X21A]

[X20A]

(Q0505)

Wire harness band

(R17616)

Earth wire

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Содержание RMKS112EV1A

Страница 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L 11 2 14 0 16 0 kW Class Outdoor Unit Inverter Multi Type Si181095...

Страница 2: ...door Unit zCooling Only RMKS112EV1A RMKS140EV1A RMKS160EV1A zHeat Pump RMXS112E8V1B RMXS140E8V1B RMXS160E8V1B RMXS112EVLT RMXS140EVLT RMXS160EVLT RMXS112EV1A RMXS140EV1A RMXS160EV1A zBP Unit BPMKS967A...

Страница 3: ...Removal of Thermistors 14 1 5 Removal of Electronic Expansion Valves Peripheral Equipments 15 1 6 Removal of Four Way Valve 19 1 7 Removal of Compressor 20 2 BP Unit 23 2 1 Removal of PCB Assembly 23...

Страница 4: ...of the front panel 2 Push the front panel 2 downward to release the hook and remove it Remove the screw and remove the piping cover front Remove the 4 screws and remove the piping cover rear Detach t...

Страница 5: ...ks to remove a discharge grille 7 Remove the 7 screws of the front panel 1 Push the front panel 1 upward and remove it On the rear side of the front panel 1 a reinforce plate is attached Be careful no...

Страница 6: ...hooks with a flat screwdriver and remove the suction grille 9 Pull the outdoor temperature thermistor and slide it to the right Detach the outdoor temperature thermistor Step Procedure Points Suction...

Страница 7: ...ower supplies before disassembling work Step Procedure Points 1 Remove the 2 screws of the terminal mounting plate Preparation Remove the outer panels according to the Removal of Outer Panels M5 3 12...

Страница 8: ...Outdoor Unit Si181095 6 Removal Procedure 4 Cut off the 3 clamps 5 Disconnect the relay connector for the reactor lead wire from each other Step Procedure Points R9222 R9223 R9224 R9225...

Страница 9: ...for the fan motor X106A X107A 7 Release the fan motor lead wires from the hooks 8 Release the lead wires of the solenoid valves and four way valve from the fixing plate and then remove the electrical...

Страница 10: ...compressor lead wires blue red white and the lead wires between A1P and A3P red blue from the hooks 10 Remove the 2 screws from LB red and NB blue on A3P and disconnect the 2 lead wires of condenser...

Страница 11: ...A3P to A1P red blue and for the earth green Clamps 2 places for the compressor lead wires Clamp for the lead wires from A3P to A1P and for the earth 12 Push and unfasten the 2 hooks and slide the cas...

Страница 12: ...compressor lead wire connector and all the other connectors from the main PCB X22A X21A X13A X11A X12A X18A X17A X32A X25A X26A X27A X28A Step Procedure Points X66A X81A X5A R12970 X66A X81A X5A X22A...

Страница 13: ...16 Unfasten the 2 hooks at the rear side 17 The figures in the right are PCB assembly Step Procedure Points R9238 Hook R12972 Fixing plate for the PCB Electrical component mounting plate Cool heat sel...

Страница 14: ...ng work Step Procedure Points Preparation Remove the discharge grille front panels 1 and 2 and piping cover front according to the Removal of Outer Panels 1 Remove the nuts which fixing the outdoor fa...

Страница 15: ...not to be entangled with the outdoor fan Be sure to remove the lower screws first If the upper screws are removed first the fan motor the center of gravity of which is toward the front may tilt down...

Страница 16: ...erature thermistor R1T 3 Pull out the suction pipe thermistors R3T R5T 4 Pull out the subcooling thermistor R6T and the liquid pipe thermistor R7T 5 Pull out the outdoor heat exchanger thermistor R4T...

Страница 17: ...ull out the 2 electronic expansion valve coils 2 Remove the 2 pressure sensors When removing the pressure sensor be sure to use 2 wrench as the left figure shows The pressure sensor is equipped with a...

Страница 18: ...tch 4 Remove the screw and remove the solenoid valve coil for hot gas bypass 5 Remove the screw and remove the solenoid valve coil for unloading Step Procedure Points High pressure switch S1PH R12978...

Страница 19: ...gas Cautions for restoration 1 Restore the piping by non oxidation brazing 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affe...

Страница 20: ...eans because the sawdust comes into the circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a steel plate so tha...

Страница 21: ...to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the four way valve with wet cloth and...

Страница 22: ...sassembling work Step Procedure Points 1 Open upward the sound insulation for the terminal cover Preparation Remove the outer panels electrical components and peripheral equipments 2 Remove the termin...

Страница 23: ...sor 5 Remove the crankcase heater at the lower of the compressor Pull the spring to release the catch 6 Remove the 3 nuts of the compressor You can see the rear side nut when the lower discharge grill...

Страница 24: ...our way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry In cas...

Страница 25: ...er supplies before disassembling work Step Procedure Points 1 Remove the 4 screws and remove the electrical box cover 2 The PCB is as shown at the right Disconnect all the relay cables The PCB is wate...

Страница 26: ...X20A X21A X22A X23A and the connector for the thermistors X90A X20A bypass X21A for room A X22A for room B X23A for room C 4 Remove the screw of the wire harness band 5 Remove the screw of the earth...

Страница 27: ...Si181095 BP Unit Removal Procedure 25 6 Disconnect the terminal of the earth wire 7 Remove the 2 screws and remove the PCB assembly Step Procedure Points Q0507 R12990 PCB assembly...

Страница 28: ...upplies before disassembling work Step Procedure Points 1 Detach the clamp of the wire harnesses Preparation Remove the PCB assembly according to the Removal of PCB Assembly 2 Remove the 4 screws and...

Страница 29: ...al Procedure 27 4 Remove the sealing materials of the pipe insulation sleeves 5 Remove the putty Step Procedure Points Sealing material R12994 Q0513 R12993 Electronic expansion valve coils for room A...

Страница 30: ...BP Unit Si181095 28 Removal Procedure 6 Cut off the clamps and pull out the electronic expansion valve coils Step Procedure Points Q0528 Clamp Clamp Q0529...

Страница 31: ...Revision History Month Year Version Revised contents 01 2013 Si181095 First edition...

Страница 32: ...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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