Mitsubishi Electric MS-A18VD Скачать руководство пользователя страница 20 | Manualshive

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Resistance (k

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Fan motor power supply
(CN211)

Fuse (F11)
T3.15AL250V

220-230-240 VAC

5 VDC

Indoor coil thermistor
(RT12 (main))

MS-A30VD
Indoor coil thermistor
(RT13 (sub))

Timer short
mode point
(JPS, JPG)
(Refer to 7-1.)

Emergency
operation
switch

CN121

Room temperature
thermistor (RT11)

PS132
MS-A30VD

To disable “Auto restart
function”, solder jumper
wire to JR07.
(Refer to 7-3.)

Vane motor
power supply
(CN151)

12 VDC

Indoor coil thermistor
(RT12 (main), RT13 (sub))
Room temperature thermistor (RT11)

Power supply input

MS-A18VD MS-A24VD MS-A30VD

Indoor electronic control P.C.board

TYPE 2

Receiver P.C. board

CN301

OB400C--1.qxp 11.7.22 10:13 AM Page 20

OB400C

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Содержание MS-A18VD

Страница 1: ...al describes technical data of the indoor units RoHS compliant products have G mark on the spec name plate For servicing of RoHS compliant products refer to the RoHS Parts List SERVICE MANUAL Models MS A18VD MS A18VD MS A24VD MS A24VD MS A30VD MS A30VD K2 K1 K2 K1 K2 K1 No OB400 REVISED EDITION C INDOOR UNIT Outdoor unit service manual MU A VD Series OB401 Revision C Another type of the electronic...

Страница 2: ...ed 4 FUSE F12 has been removed MS A18 24VD 5 8 5 C Check of indoor electronic control P C board has been changed K2 K2 K1 K2 K1 K2 K1 Revision A MS A18VD MS A24VD and MS A30VD have been added K2 K2 K2 Revision B Remote controller model KM04B has been added There are two remote controller models for and KP0B KM04B You can use the remote controller model KP0B and KM04B The remote controller model KM...

Страница 3: ...opened Remote controller Operation section Display section Front Panel Emergency operation switch Operation indicator lamp Air inlet Remote control receiving section Air cleaning filter White bellows type Horizontal vane Vertical vanes Catechin air filter Remote control receiving section OB400C ...

Страница 4: ... button OFF TIMER button HR button MIN button TIME SET button ON TIMER button RESET button ECONO COOL button VANE button Horizontal vane button CLOCK SET button LONG button WIDE VANE button Vertical vane button 4 Installation plate Installation plate fixing screw 4 x 25 mm Remote controller holder Fixing screw for 3 3 5 x 16 mm Black Battery AAA for remote controller Wireless remote controller Fel...

Страница 5: ...0V 50Hz 1 100O325O258 16 5 3 10 10 KP0B KM04B 0 33 0 34 0 35 67 69 75 92 88 89 0 33 0 34 0 35 RC4V40 AA WHT BLK 138 2 RED BLK 159 0 774 660 552 0 30 0 30 0 31 60 60 64 91 87 86 0 30 0 30 0 31 RC4V32 AA WHT BLK 293 0 RED BLK 146 0 42 37 33 K h A W A kW A mm kg dB rpm k k k 972 828 684 45 41 37 1 220 1 070 910 1 280 1 130 970 1 220 1 070 910 1 280 1 130 970 1 010 880 760 1 070 920 780 10 MS A18VD K1...

Страница 6: ...91 56 1068 1100 325 Air out Air in Insulation 28 Drain hose 16 Connected part O D Installation plate Wall hole 75 Wireless remote controller Installation plate Indoor unit Liquid line 6 35 0 5m Gas line 12 0 43m Insulation 50 O D 32 I D Liquid line 9 52 0 5m Gas line 16 0 43m Insulation 50 O D 32 I D for MS A18VD for MS A30VD for MS A24VD OB400C ...

Страница 7: ...VERTICAL VANE MOTOR VARISTOR ROOM TEMPERATURE THERMISTOR INDOOR COIL THERMISTOR SOLID STATE RELAY TERMINAL BLOCK COMPRESSOR CONTACTOR MS A18VD MS A24VD K2 K2 INDOOR UNIT 220 230 240V BLK GRY YLW BRN WHT RED MF 3 SR141 4 3 1 CN 121 C11 HIC1 MV1 151 CN MV2 15 RT12 112 CN CN211 NR11 ELECTRONIC CONTROL P C BOARD F11 1 2 3 CN201 MV2 CN 101 CN 102 DISPLAY P C BOARD RECEIVER P C BOARD REMOTE CONTROLLER 3...

Страница 8: ... 1 About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing 2 Use copper conductors only For field wiring 3 Symbols below indicate Terminal block Connector SYMBOL SR141 TB SYMBOL MV2 NR11 RT11 RT12 RT13 SYMBOL C11 F11 HIC1 MF MV1 NAME NAME NAME INDOOR FAN CAPACITOR FUSE T3 15AL250V DC DC CONVERTER INDOOR FAN MOTOR INNER PROTECTOR HORIZONTAL VANE MOTOR ...

Страница 9: ...heat exchanger Flared connection Room temperature thermistor RT11 Flared connection Refrigerant flow in cooling Refrigerant pipe 15 88 with heat insulator Refrigerant pipe 6 35 with heat insulator Indoor coil thermistor RT12 Strainer 50 Indoor heat exchanger Flared connection Room temperature thermistor RT11 Indoor coil thermistor RT13 sub Flared connection Refrigerant pipe 15 88 with heat insulat...

Страница 10: ... 8 6 Set time 1 minute 1 second Set time 3 minute 3 second It takes 3 minutes for the compressor to start operation However the starting time is shortened by short circuit of JPG and JPS How to modify the remote controller P C board Remove batteries before modification The board has a print as shown below The P C board has the print J1 and J2 Solder J1 and J2 according to the number of indoor unit...

Страница 11: ...ing is cancelled If the unit has been off with the remote controller before power failure the auto restart function does not work as the power button of the remote controller is off To prevent breaker off due to the rush of starting current systematize other home appliances not to turn on at the same time When some air conditioners are connected to the same supply system if they are operated befor...

Страница 12: ...the indoor unit is flashing on and off to indicate an abnormality To make sure check how many times the OPERATION INDICATOR lamp is flashing on and off before starting service work 2 Before servicing that the connector and terminal are connected properly 3 When the electronic control P C board seems to be defective check the copper foil pattern for disconnection and the components for bursting and...

Страница 13: ...er to 8 5 D How to check mis wiring When outdoor unit does not work Check room temperature thermistor and indoor coil thermis tor Refer to 8 6 Test point diagram and voltage Refer to 8 5 A Check of indoor fan motor Refer to Check of outdoor thermistor Replace the deicer P C board MU A30VD 10 time flash Cause Outdoor unit Trouble of low discharge temperature protection Refer to Check of LEV 4 time ...

Страница 14: ...ection Discharge temperature has been 50 or less for 20 minutes Abnormal point Outdoor unit does not operate Room tempera ture thermistor 2 time flash 2 5 second OFF Detect Indoor coil room temperature thermistor short or open circuit every 8 seconds during operation Refer to the characteristics of indoor coil thermistor sub indoor coil thermistor and room temperature thermistor on 8 6 3 time flas...

Страница 15: ...e terminals with a tester Coil wiring temperature10 C 30 C Indoor fan motor MF INNER PROTECTOR 135i 5 OPEN 86i15 CLOSE Motor part Sensor part Measure the voltage Power ON MAIN AUX BLK REDWHT P P INNER PROTECTOR Horizontal vane motor MV1 Vertical vane motor MV2 Measure the resistance between the RED terminals and other ones Winding temperature10 C 30 C ORN BLU YLW RED PNK ROTOR 282 306 Normal Color...

Страница 16: ... troller Yes Does the unit operate with remote controller Yes OK No not clear Yes No No No 5V or 0 VDC No Indoor unit operates by pressing the EMERGENCY OPERATION switch but does not operate with the remote controller Yes A A Check of indoor fan motor Turn OFF the power supply Check connector CN211 visually Disconnect lead wires from connector CN211 on the indoor electronic control P C board Measu...

Страница 17: ...connector CN151 from the indoor electronic control P C board and turn ON the power supply No Does the unit operate with the remote controller Does the OPERATION INDICATOR lamp light up by pressing the EMERGENCY OPERATION switch Yes No Turn OFF the power supply Turn OFF the power supply Replace the indoor electronic control P C board Measure the resistance between CN201 1 on the indoor electronic c...

Страница 18: ...indoor electronic control P C board Is there 220 230 240V AC between L N on the outdoor terminal block No Check the outdoor power supply and connection of wiring Is there 5V DC between J101 J401 Yes No Replace the deicer P C board Yes No Make the wiring between CN730 on the deicer P C board and outdoor terminal block correct Replace the deicer P C board Yes Yes Yes When the unit has mis wiring in ...

Страница 19: ...tch 12 VDC Indoor coil thermistor RT12 main RT13 sub Room temperature thermistor RT11 Temperature Resistance k Room temperature thermistor RT11 MS A30VD Indoor coil thermistor RT13 sub To disable Auto restart function solder the Jumper wire or the Resistor 220 to the Resistor JR07 Refer to 7 3 Varistor NR11 CN121 Vane motor power supply CN151 CN301 PS132 MS A30VD w There are 2 types of electronic ...

Страница 20: ...fer to 7 1 Emergency operation switch CN121 Room temperature thermistor RT11 PS132 MS A30VD To disable Auto restart function solder jumper wire to JR07 Refer to 7 3 Vane motor power supply CN151 12 VDC Indoor coil thermistor RT12 main RT13 sub Room temperature thermistor RT11 Power supply input MS A18VD MS A24VD MS A30VD Indoor electronic control P C board TYPE 2 Receiver P C board CN301 OB400C ...

Страница 21: ...clamp Remove the V A clamp 4 Remove the screw of the terminal block 5 Remove the screw of the ground wire 6 Disconnect all the connectors and all the lead wires on the electronic control P C board 7 Remove the R L holder 8 Remove the electronic control P C board 9 Open the R L holder remove the receiver P C board and the display P C board 1 Slide the sleeve and check if there is a locking lever or...

Страница 22: ...drain hose from the nozzle assembly remove the nozzle assembly 6 Remove the screws of the vane motor disconnect the con nector 7 Remove the vane motor Screws fixing the fan motor 5 Removing the line flow fan and the indoor fan motor 1 Remove the front panel Refer to 1 2 Remove the electrical box Refer to 3 3 Pull out the drain hose from the nozzle assembly remove the nozzle assembly 4 Remove the w...

Страница 23: ... 4 3 1 1 2 2 1 1 1 1 4 3 1 1 2 2 1 1 1 1 4 3 1 1 2 2 1 1 1 1 4 3 1 1 2 2 1 MS A30 VD K2 MS A30 VD K1 MS A24 VD K2 MS A24 VD K1 MS A18 VD K2 MS A18 VD K1 10 2 INDOOR UNIT HEAT EXCHANGER 2 4 5 8 6 1 11 7 12 13 3 CATCH SCREW CAP 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 11 12 13 E02 817 620 E02 947 620 E02 890 620 E02 179 667 E02 138 666 E02 A16 666 E02 151 667 E02 527 667 INDOOR HEAT EXCHANGER INDOOR HEAT...

Страница 24: ...THERMISTOR MOTOR BAND MOTOR BAND TERMINAL BLOCK TERMINAL BLOCK INDOOR COIL THERMISTOR INDOOR COIL THERMISTOR INDOOR COIL THERMISTOR VANE MOTOR SUPPORT SET RIGHT VANE MOTOR SUPPORT SET LEFT THERMAL FUSE F11 NR11 MF MF MV2 MV1 RT11 TB TB RT12 RT12 RT12 RT13 F12 Q ty unit 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 ...

Страница 25: ...ing unit operation Air cleaning filter White bellows type Model Part No MAC 1700FT MS A18VD K1 MS A18VD K2 MS A24VD K1 MS A24VD K2 MS A30VD K1 MS A30VD K2 1 2 E02 527 426 E02 527 083 REMOTE CONTROLLER REMOTE CONTROLLER HOLDER 1 1 KM04B 1 1 1 1 1 1 1 1 1 1 No Part No Part name Remarks Symbol in Wiring Diagram Q ty unit MS A30 VD K2 MS A30 VD K1 MS A24 VD K2 MS A24 VD K1 MS A18 VD K2 MS A18 VD K1 10...

Страница 26: ...1 1 1 4 3 1 1 2 2 1 1 1 1 4 3 1 1 2 2 1 1 1 1 4 3 1 1 2 2 1 1 1 1 4 3 1 1 2 2 1 MS A30 VD K2 MS A30 VD K1 MS A24 VD K2 MS A24 VD K1 MS A18 VD K2 MS A18 VD K1 11 2 INDOOR UNIT HEAT EXCHANGER 2 4 5 8 6 1 11 7 12 13 3 CATCH SCREW CAP 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 11 12 13 E12 817 620 E12 947 620 E12 890 620 E12 179 667 E12 138 666 E12 A16 666 E12 151 667 E12 527 667 G G G G G G G G INDOOR HEAT ...

Страница 27: ...NTROL P C BOARD w1 ROOM TEMPERATURE THERMISTOR MOTOR BAND MOTOR BAND TERMINAL BLOCK TERMINAL BLOCK INDOOR COIL THERMISTOR INDOOR COIL THERMISTOR INDOOR COIL THERMISTOR VANE MOTOR SUPPORT SET RIGHT VANE MOTOR SUPPORT SET LEFT THERMAL FUSE F11 NR11 MF MF MV2 MV1 RT11 TB TB RT12 RT12 RT12 RT13 F12 Q ty unit 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 ...

Страница 28: ...sible Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet DO NOT reuse AIR CLEANING FILTER even if it is washed DO NOT remove or attach AIR CLEANING FILTER during unit operation Air cleaning filter White bellows type Model Part No MAC 1700FT MS A18VD K1 MS A18VD K2 MS A24VD K1 MS A24VD K2 MS A30VD K1 MS A30VD K2 1 2 E12 527 426 E12 527 083 REMOTE CO...

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