Daikin 4MXM110PVLT Service Manual Download | Manualshive

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Electrical Box

Si121293EC

10

Removal Procedure

10

11

Disconnect the
connector [S40].

Disconnect the relay
connector for the
compressor.

[S40]: overload protector

12

13

Remove the 2 screws.

Slide the electrical box
to the left and remove it.

Step

Procedure

Points

(R18094)

[S40]

Relay connector
for the compressor

Electrical box

(R17977)

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Summary of Contents for 4MXM110PVLT

Page 1: ...REMOVAL PROCEDURE S E R V I C E M A N U A L Outdoor Unit Inverter Multi Type 9 0 9 5 10 0 10 5 11 0 kW Class 32000 36000 38000 Btu h Class Si121293EC ...

Page 2: ...Outdoor Unit zCooling Only zHeat Pump 5MKS100LSG 4MXM110PVLT 5MKS100LVMA 5MXS100LVMA 5MKS100LVMA9 5MXS100LVMA9 5MKS110LVM 5MXS110LVM MKM95PV14 5MXS38PMVM MKM105PV14 MKM95PV1G MKM105PV1G MKM32PV2S MKM36PV2S MKM95PVM MKM105PVM MKS90QVMG ...

Page 3: ... 2 Outdoor Fan Fan Motor 4 3 Electrical Box 6 4 PCBs 11 5 Coils Thermistors 16 6 Sound Blankets 18 7 Four Way Valve 19 8 Compressor 21 Note The illustrations may be slightly different depending on the model The illustrations are for heat pump models as representative ...

Page 4: ...he clearances of the outdoor heat exchanger fins 2 Unfasten the 3 hooks at the bottom and remove the suction grille 3 4 Remove the 9 screws and then the top panel Remove the 5 screws and then the right side panel Slide the right side panel downward to unfasten the 2 hooks on the front side 5 Remove the screw and then the front panel 2 Slide the front panel 2 downward to unfasten the 3 hooks R18259...

Page 5: ... 7 8 Slide the discharge grille upward and unfasten the 4 hooks Remove the discharge grille 9 Remove the 7 screws and then the front panel 1 You can remove the front panel 1 without removing the discharge grille Step Procedure Points Discharge grille R18086 Hook R17953 Front panel 1 R18087 ...

Page 6: ... the connector S70 Release the fan motor lead wire from the 3 hooks S70 fan motor 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 4 Remove the nut and then the outdoor fan Nut size M8 When reassembling align the mark of the outdoor fan with the D cut section of the motor shaft R22548 Clamp R17956 S70 Hook Fan motor lead...

Page 7: ...ocedure 5 2 Remove the fan motor 1 Remove the 2 screws and then the fan motor fixing frame 2 Cut the 2 clamps 3 Remove the 4 screws and then the fan motor Step Procedure Points Fan motor fixing frame R17958 R17959 R17960 Fan motor Rubber cushion ...

Page 8: ...or room E 1 2 Remove the 2 screws and disconnect the power supply wire Remove the screws and disconnect the connecting wires of rooms A E 3 4 5 Remove the screw to detachtheearth ground wire Remove the 8 screws on the wire fixtures Remove the insulation sheets 6 Remove the 2 screws and then the partition plate 2 R20769 Connecting wire Power supply wire R22549 Earth ground wire Insulation sheet Wir...

Page 9: ...6 screws Slide the rear panel upward to unfasten the 2 hooks 3 Unfasten the 2 hooks to release the holder of the outdoor temperature thermistor 4 Unfasten the 2 hooks to open the holder and pull out the outdoor temperature thermistor Step Procedure Points R18091 Rear panel Hook Hook Stop valve mounting plate R18092 R17966 Holder Hook Hook Hook Outdoor temperature thermistor R17967 ...

Page 10: ...e fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 4 Detach the 3 clamps 5 Disconnect the 5 connectors for the electronic expansion valve coils S20 white room A S21 red room B S22 blue room C S23 yellow room D S24 white room E 4 room models do not have S24 Step Procedure Points R22548 Clamp R17956 S70 Hook Fan motor lead wire Lead wire Outdoor fa...

Page 11: ...8 Disconnect the connector S80 and pull out the clamp Disconnect the connector S90 S80 four way valve coil The cooling only models have no harness for S80 S90 thermistor ASSY 9 Pull out the 2 clamps which fix the harnesses of the thermistor ASSY under the electrical box Step Procedure Points R17972 S92 S93 R17973 S90 S80 Clamp R18263 R18264 ...

Page 12: ...ect the connector S40 Disconnect the relay connector for the compressor S40 overload protector 12 13 Remove the 2 screws Slide the electrical box to the left and remove it Step Procedure Points R18094 S40 Relay connector for the compressor Electrical box R17977 ...

Page 13: ...03 from the service monitor PCB Detach the 4 projections and remove the service monitor PCB S501 red for S209 on control PCB S502 yellow for S210 on control PCB S503 white for S206 on control PCB 2 Remove the terminal board 1 2 Remove the 4 screws of the terminal board Remove the 2 screws of the power supply terminal board R18095 Electrical box cover Hook Hook Hook Hook R22550 Projection Projectio...

Page 14: ...ower connectors a and b of the room B Remove the terminal board Not available for 4 room models Step Procedure Points R17981 Terminal board S R17982 b a B A C E D R22556 Terminal upper lower A 1 black black 2 white white 3 red B 1 black black 2 white white 3 yellow C 1 black black 2 white white 3 blue D 1 black black 2 white white 3 orange E 1 black 2 white 3 gray ...

Page 15: ...er PCB Disconnect the connectors DCP2 and DCM2 Disconnect the connectors S401 and S411 4 Disconnect the connectors S206 S209 and S210 from the control PCB S206 for S503 on service PCB S209 for S501 on service PCB S210 for S502 on service PCB 5 Remove the screw of the earth ground wire under the electrical box Step Procedure Points S411 S401 HL402 HN402 DCP2 DCM2 Inverter PCB R18098 R17984 S210 S20...

Page 16: ...emove the 2 screws and unfasten the 4 hooks 7 Lift up and remove the control PCB 4 Remove the inverter PCB 1 Disconnect the connectors of the compressor harness U V and W Step Procedure Points Hook Hook R18100 Control PCB R17987 R17988 W V U ...

Page 17: ...93EC PCBs Removal Procedure 15 2 3 Remove the 8 screws Unfasten the hook and remove the inverter PCB The screw marked with is larger than the others M4 16 Step Procedure Points R18101 Hook R17990 Inverter PCB ...

Page 18: ... electronic expansion valve coils The number of electronic expansion valve coils and thermistorsvaries depending on the model 1 2 Cut the 3 clamps Pull out the electronic expansion valve coils 2 Remove the thermistors Be careful not to lose the clips for the thermistors 1 Cut the clamps and pull out the gas pipe thermistors Clamp R17991 R17992 Clamp Electronic expansion valve coil Gas pipe thermis...

Page 19: ...ermistor vary depending on the model 4 Pull out the outdoor temperature thermistor through the hole 5 Slightly open the sound blanket top and remove the discharge pipe thermistor Be careful not to lose the fixture for the thermistor Step Procedure Points R17994 Liquid pipe thermistor Putty Be careful not to lose the fixtures for the thermistors R18103 Clamp Outdoor heat exchanger thermistor Clip R...

Page 20: ...tion plate When reassembling fit the hook on the partition plate to the notch of the outdoor heat exchanger plate 3 4 Remove the sound blanket outer top Remove the sound blanket outer Since the piping ports on the sound blankets are torn easily remove the blankets carefully 5 6 Remove the sound blanket inner top Remove the sound blanket inner R20771 Partition plate Clamp Partition plate Hook R1799...

Page 21: ...f 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 to pinch them fir...

Page 22: ...4 5 Disconnect the terminals of the compressor harness Remove the bushing for the lead wire U red V yellow W blue 2 Remove the four way valve 1 2 Heat up the brazed parts in order of a b c d Remove the four way valve Step Procedure Points Terminal cover R18010 Overload protector Hook R24005 Compressor harness Bushing for lead wire R18007 a b c d R22553 ...

Page 23: ...it 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 to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries Be careful so as not to burn ...

Page 24: ...brazed 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 Procedure Points Nut R18105 Putty R23999 Brazed part of the discharge side pipe Brazed part of the suction side pipe Nut ...

Page 25: ... contents 11 2012 Si121293 First edition 08 2014 Si121293EA Model addition 5MK X S100LVMA9 10 2015 Si121293EB Model addition MKM95 105PV14 MKM95 105PV1G MKM32 36PV2S 4MXM110PVLT 09 2016 Si121293EC Model addition MKM95 105PVM MKS90QVMG 5MXS38PMVM ...

Page 26: ...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 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 instructio...

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