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SERVICE MANUAL

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

Wireless type
Models

No. OB230

CONTENTS

1. TECHINICAL CHANGES ··································2

2. PART NAMES AND FUNCTIONS······················4

3. SPECIFICATION·················································6

4. NOISE CRITERIA CURVES ·······························8

5. OUTLINES AND DIMENSIONS ·························9

6. WIRING DIAGRAM ··········································10

7. REFRIGERANT SYSTEM DIAGRAM ··············12

8. PERFORMANCE CURVES ······························13

9. MICROPROCESSOR CONTROL ····················23

10. SERVICE FUNCTIONS·····································38

11. TROUBLESHOOTING ······································40

12. DISASSEMBLY INSTRUCTIONS·····················57

13. PARTS LIST······················································61

14. OPTIONAL PARTS···········································65

MSZ-A09RV -

(WH)

●

MUZ-A09RV -

MSZ-A12RV -

(WH)

●

MUZ-A12RV -

1999

Содержание MSZ-A09RV-E1

Страница 1: ...ECIFICATION 6 4 NOISE CRITERIA CURVES 8 5 OUTLINES AND DIMENSIONS 9 6 WIRING DIAGRAM 10 7 REFRIGERANT SYSTEM DIAGRAM 12 8 PERFORMANCE CURVES 13 9 MICROPROCESSOR CONTROL 23 10 SERVICE FUNCTIONS 38 11 TROUBLESHOOTING 40 12 DISASSEMBLY INSTRUCTIONS 57 13 PARTS LIST 61 14 OPTIONAL PARTS 65 MSZ A09RV WH MUZ A09RV MSZ A12RV WH MUZ A12RV E1 E1 E1 E1 1999 ...

Страница 2: ...on Non Previous refrigerant R 22 R 22 100 Single refrigerant Included A1 86 5 40 8 0 94 44 4 Non combustible 0 055 1700 Gas phase Possible Compatible oil Light yellow Non Refrigerant Composition Ratio Refrigerant handling Chlorine Safety group ASHRAE Molecular weight Boiling point Steam pressure 25 Mpa Saturated steam density 25 Kg K Combustibility ODP w1 GWP w2 Refrigerant charge method Additiona...

Страница 3: ...ils of flaring work refer to Installation manual 6 1 FLARING WORK R 410A tools Can R 22 tools be used Gas leak detector R 410A pressures beyonds the measurement range of R 22 gauges Port diameters have been changed to prevent other kinds of refrigerant from being charged into the units Hose material and cap size have been changed to improve the pressure resistance Dedicated for HFC refrigerant 1 4...

Страница 4: ...siphon Liquid 2 Optional extension pipe for R 410A 3 Refrigerant oil Apply the special refrigeration oil accessories to the flare and the union seat surfaces 4 Air purge Use the vacuum pump for air purging for the purpose of environmental protection 5 Additional charge For additional charging charge the refrigerant from liquid phase of the gas cylinder If the refrigerant is charged from the gas ph...

Страница 5: ... HR button MIN button TIME SET button TEMPERATURE buttons VANE CONTROL button OFF TIMER button RESET button ON OFF TOO WARM TOO COOL HR MIN CLOCK RESET CLOCK MODE FAN VANE START STOP ECONO COOL button ECONO COOL I FEELCOOL DRY HEAT 600 1 100 AM PM SWING SWING button MUZ A09RV MUZ A12RV E1 E1 OUTDOOR UNIT Air inlet Air outlet Drain outlet Piping Drain hose MSZ A09RV MSZ A12RV E1 E1 ...

Страница 6: ...4 6 850O278O191 10 5 3 10 10 10 MUZ A09RV E1 0 27 0 25 SNB 092FBA 700 U V 0 93 U W 0 93 V W 0 93 RA6V28 CA WHT BLK 197 BLK RED 315 YLW BLK 13 710 69 o540o255 34 2 1 10 450 NEO22 13 4 32 6 17 Cooling 2 6 0 9 3 3 516 1 2 3 67 3 37 800 250 1180 36 920 1440 6 9 3 25 45 670 Heating 3 6 0 9 4 8 540 4 55 4 17 990 250 1650 35 950 1530 7 4 3 64 47 700 MSZ A12RV E1 Single phase 220 240V 50Hz 10 99 7 25 6 65...

Страница 7: ...ductor relay Terminal block Relay compressor 52C Terminal block thermal Fuse Indoor fan motor thermal fuse Fuse F11 Smoothing capacitor C61 C62 Outdoor fan capacitor C65 Current transformer CT61 Fuse F801 F901 Reactor L64 Noise filter Current detecting resistor R61 62 64 Current limiting resistor R65 Terminal block Intelligent power module Relay X61 Relay X62 Reversing valve coil Power factor cont...

Страница 8: ...ooling DB35 WB24 Heating DB 7 WB 6 MUZ A09RV E1 HEATING NOTCH 47 COOLING 45 SPL dB A LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 002 MICRO BAR BAND CENTER FREQUENCIES Hz Test conditions Cooling DB27 WB19 Heating DB20 WB MSZ A12RV E1 HEATING COOLI...

Страница 9: ...ant pipe flared 6 35 Service panel Gas refrigerant pipe joint Refrigerant pipe flared 9 52 Service port Bolt pitch for installation Handle Air out Air in Drainage holes 28 4 holes 10o21 18 500 710 265 105 69 138 20 40 If both sides or back side is vacant only to be free 50 cm in front of a unit Air in 265 REQUIRED SPACE If a front side or both sides is vacant an upper side of a unit has only to be...

Страница 10: ... P C BOARD 11 CN 1J1 REMOTE CONTROLLER POWER MONITOR RECEIVER P C BOARD 5 LD101T SYMBOL C11 F11 F12 HIC1 MF MV1 MV2 SYMBOL NR11 RT11 RT12 RT13 SYMBOL SR141 TB 52C NAME INDOOR FAN CAPACITOR FUSE 3 15A THERMAL FUSE 93 DC DC CONVERTER INDOOR FAN MOTOR VANE MOTOR HORIZONTAL VANE MOTOR VERTICAL NAME VARISTOR ROOM TEMPERATURE THERMISTOR INDOOR COIL THERMISTOR MAIN INDOOR COIL THERMISTOR SUB NAME SOLID S...

Страница 11: ...C61 C62 C65 DSA61 F801 F901 IC950 IPM LEV L61 SYMBOL L63 L64 MC MF61 NR61 PFC RT61 RT62 RT64 R61 62 SYMBOL R64 R65 SSR61 TB1 TB2 X61 X62 X64 21S4 NAME CURRENT TRANSFORMER SMOOTHING CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER FUSE 2A FUSE 2A DC DC CONVERTER INTELLIGENT POWER MODULE EXPANSION VALVE COIL CMC COIL NAME COIL REACTOR COMPRESSOR OUTDOOR FAN MOTOR INNER FUSE VARISTOR POWER FACTOR CONTR...

Страница 12: ...m 60 30 Calculation Xg 30g m A 7 m Indoor heat exchanger Outdoor heat exchanger Distributor Flared connection Room temperature thermistor RT11 Indoor coil thermistor RT13 sub Defrost thermistor RT62 Discharge thermistor RT61 Flared connection Stop valve Stop valve with service port Capillary tube Capillary tube 2 pcs Refrigerant flow in cooling Compressor Accumulator Maffler Muffler Reversing valv...

Страница 13: ...of the chart on next page shows the difference between the indoor intake air wet bulb temperature and the indoor discharge air wet bulb temperature for your reference at service How to measure the indoor air wet bulb temperature difference 1 Attach at least 2 sets of wet and dry bulb thermometers to the indoor air intake as shown in the figure and at least 2 sets of wet and dry bulb thermometers t...

Страница 14: ... 5 1 0 1 5 Correction of Cooling capacity Capacity correction factors The operational frequency of compressor Cooling capacity MUZ A09RV E1 MUZ A12RV E1 Correction of total input Capacity correction factors The operational frequency of compressor 0 50 100 150 Hz 0 5 1 0 1 5 2 0 Correction of total input Capacity correction factors The operational frequency of compressor 0 50 100 150 Hz 0 5 1 0 1 5...

Страница 15: ...erational frequency of compressor 0 50 100 150 Hz 0 0 0 5 1 0 1 5 Correction of Heating capacity Capacity correction factors The operational frequency of compressor Heating capacity Correction of total input Capacity correction factors The operational frequency of compressor 0 50 100 150 Hz 0 5 1 0 1 5 Correction of total input Capacity correction factors The operational frequency of compressor 0 ...

Страница 16: ...quency 83Hz How to operate with fixed operational frequency of the compressor 1 Press the EMERGENCY OPERATION switch on the front of the indoor unit and select either the COOL mode or the HEAT mode before starting to operate the air conditioner 2 The compressor starts up The operational frequency of the compressor is 83Hz in the COOL mode and 58Hz in the HEAT mode 3 The fan speed of the indoor uni...

Страница 17: ...t A Ambient temperature HEAT operation Condition Indoor Dry bulb temperature 20 0 Wet bulb temperature 14 5 Outdoor Dry bulb temperature 2 7 15 20 0 Wet bulb temperature 1 6 12 14 5 58Hz 220V 240V 6 0 5 5 5 0 4 5 4 0 3 5 3 0 2 5 10 15 20 25 MUZ A09RV E1 Outdoor unit current A Ambient temperature ...

Страница 18: ...40 0 44 832 27 26 3 59 1 15 0 32 768 3 48 1 11 0 32 808 3 43 1 10 0 32 832 3 33 1 06 0 32 856 28 18 3 06 2 57 0 84 640 2 93 2 46 0 84 672 2 81 2 36 0 84 704 2 70 2 27 0 84 736 28 20 3 19 2 29 0 72 672 3 06 2 20 0 72 712 2 96 2 13 0 72 728 2 86 2 06 0 72 760 28 22 3 32 1 99 0 60 696 3 20 1 92 0 60 740 3 12 1 87 0 60 760 2 99 1 79 0 60 792 28 24 3 48 1 67 0 48 728 3 35 1 61 0 48 768 3 28 1 57 0 48 7...

Страница 19: ...3 0 56 912 27 24 2 99 1 32 0 44 880 2 81 1 24 0 44 920 2 73 1 20 0 44 940 27 26 3 15 1 01 0 32 912 2 96 0 95 0 32 952 2 87 0 92 0 32 972 28 18 2 55 2 14 0 84 784 2 34 1 97 0 84 832 2 25 1 89 0 84 848 28 20 2 68 1 93 0 72 816 2 50 1 80 0 72 856 2 41 1 73 0 72 880 28 22 2 83 1 70 0 60 848 2 65 1 59 0 60 896 2 56 1 54 0 60 912 28 24 2 99 1 44 0 48 880 2 81 1 35 0 48 920 2 73 1 31 0 48 940 28 26 3 15 ...

Страница 20: ... 24 4 56 1 78 0 39 1110 4 39 1 71 0 39 1171 4 28 1 67 0 39 1208 4 15 1 62 0 39 1269 27 26 4 69 1 27 0 27 1171 4 56 1 23 0 27 1232 4 49 1 21 0 27 1269 4 35 1 18 0 27 1305 28 18 4 00 3 16 0 79 976 3 83 3 02 0 79 1025 3 67 2 90 0 79 1074 3 54 2 79 0 79 1122 28 20 4 17 2 79 0 67 1025 4 00 2 68 0 67 1086 3 88 2 60 0 67 1110 3 74 2 51 0 67 1159 28 22 4 34 2 38 0 55 1061 4 18 2 30 0 55 1129 4 08 2 24 0 5...

Страница 21: ... 1391 27 24 3 91 1 52 0 39 1342 3 67 1 43 0 39 1403 3 57 1 39 0 39 1434 27 26 4 11 1 11 0 27 1391 3 88 1 05 0 27 1452 3 76 1 01 0 27 1482 28 18 3 33 2 63 0 79 1196 3 06 2 42 0 79 1269 2 94 2 32 0 79 1293 28 20 3 50 2 35 0 67 1244 3 26 2 19 0 67 1305 3 15 2 11 0 67 1342 28 22 3 71 2 04 0 55 1293 3 47 1 91 0 55 1366 3 35 1 84 0 55 1391 28 24 3 91 1 68 0 43 1342 3 67 1 58 0 43 1403 3 57 1 54 0 43 143...

Страница 22: ...1643 5 04 1722 5 62 1770 6 24 1817 CAPACITY 4 8 kW INPUT 1580 W MUZ A09RV E1 MUZ A12RV E1 PERFORMANCE DATA HEAT operation PERFORMANCE DATA HEAT operation OUTDOOR DB INDOOR 10 5 0 5 10 15 20 DB Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT 15 2 27 644 2 74 772 3 20 871 3 67 941 4 14 1000 4 57 1030 5 04 1049 21 2 16 693 2 59 822 3 06 911 3 49 980 3 96 1030 4 39 1059 4 84 1099 26 1 94 743 2...

Страница 23: ...en the room temperature or set temperature is out of the indication range If the set temperature is lower than 21 indicating lamp at 21 is lighting And if the room temperature is lower than 21 indicating lamp at 21 is blinking If the set temperature is higher than 30 indicating lamp at 30 is lighting And if the room temperature is higher than 30 indicating lamp at 30 is blinking GREEN SIGN 21 22 2...

Страница 24: ...peration mode is determined according to the room temperature as the operation starts When the system is stopped with the OPERATE STOP button on the remote controller and restarted within 2 hours in I FEEL CONTROL mode the system operates in previous mode automatically regardless of the room temperature Mode COOL mode of I FEEL CONTROL DRY mode of I FEEL CONTROL HEAT mode of I FEEL CONTROL Initial...

Страница 25: ...door fan speed becomes Hi or the room temperature exceeds 26 timecounting stops temporarily After when the above conditions are satisfied again time counting restarts The indoor fan operates at set speed 1 5 deg 4 deg 2 deg 1 deg Temperature difference Difference between room temperature and set temperature during operation Fan speed The operational frequency of the compressor is controlled based ...

Страница 26: ...12 is less than 22 C and 1 if the temperature of room temperature thermistor RT11 is 15 C or less the fan stops 2 if the temperature of room temperature thermistor RT11 is more than 15 C the fan operates at VLo NOTE At initial and after defrosting when the RT12 is from 18 to 22 Cold Air Prevention control works 3 Warm air control When the following any condition of 1 a d and the condition of 2 are...

Страница 27: ...sor operation time hereinafter referred to as defrost interval The first defrost interval is 40 minutes long and the second 45 minutes long The third and subsequent intervals are set to be longer and less frequent depending on defrosting time The third and subsequent defrost intervals follow any of the three patterns 5 or 10 minutes longer the same or 5 or 10 minutes shorter compared with the prev...

Страница 28: ...OPERATION SELECT button 3 Press TEMPERATURE buttons TOO WARM or TOO COOL button to select the desired temperature The setting range is 16 31 C 35 30 25 20 15 10 10 15 20 25 30 35 Set temperature Initial room temperature Set temperature and initial room temperature in dry mode 9 5 FAN MOTOR CONTROL 1 Rotational frequency feedback control The indoor fan motor is equipped with a rotational frequency ...

Страница 29: ...is once pressed to the vane stopper below to confirm the standard position and then set to the desired angle The positioning is decided as follows a When the operate button is pushed POWER ON b When the stop button is pushed POWER OFF c When the vane control change AUTO to MANUAL d When the SWING is finished e When the test run starts f When the power supply is ON 4 VANE AUTO mode In VANE AUTO mod...

Страница 30: ... automatically set 2 C higher than that in MANUAL COOL mode SWING operation In swing operation of ECONO COOL operation air flow is initially blew out upward levelly According to the temperature of indoor coil thermistor RT12 at starting of this operation next downward blow time is decided Then when the downward blow has been finished next upward blow time is decided The air conditioner repeats the...

Страница 31: ...er operation will not work without setting the current time Initially AM0 00 blinks at the current time display of TIME MONITOR so set the current time correctly with CLOCK SET button 3 Press ON or OFF TIMER buttons to select the operation button AUTO START operation ON timer button AUTO STOP operation OFF timer 4 Press HR and MIN button to set the timer Time setting is 10 minute units HR and MIN ...

Страница 32: ...perates in this mode and defrosting operates too In the test run or emergency operation the horizontal vane operates in AUTO mode with a set temperature of 24 C Defrosting of outdoor heat exchanger works in EMERGENCY HEAT MODE NOTE Do not press the EMERGENCY OPERATION switch during normal operation GREEN SIGN 21 22 23 24 25 26 27 28 29 30 GREEN SIGN 21 22 23 24 25 26 27 28 29 30 GREEN SIGN 21 22 2...

Страница 33: ...each operation mode w The maximum frequency in COOL mode is limited according to operation hours as shown below 2 Frequency change speed During increasing frequency During decreasing frequency Operational frequency MUZ A09RV E1 MUZ A12RV E1 10Hz to 14Hz 0 5 sec Hz 15Hz to 79Hz 5 sec Hz 80Hz to 150Hz 0 5 sec Hz Operational frequency MUZ A09RV E1 MUZ A12RV E1 10Hz to 42Hz 1 sec Hz 43Hz to 150Hz 0 5 ...

Страница 34: ...ee approx 15 minutes after compressor stops Remote controller ON LEV is positioned first full closed at zero pulse and then positioned During 2 to 15 minutes after compressor starts Opening degree is adjusted according to standard opening degree Standard opening degree is set for each rotational frequency of compressor More than 15 minutes have passed since compressor start up LEV opening degree i...

Страница 35: ... compressor Commanded to open Standard opening degree opening degree is corrected according to discharge temperature positioning air conditioner ON Air conditioner OFF thirmostat off LEV opening degree 15 min 4 Control data 06 05 04 03 02 01 LEV opening degree A target discharge temperature B C D E F 30 50 70 The operational frequency of the compressor 90 110 130 Hz A 58 49 B 60 58 C 68 67 D 70 70...

Страница 36: ...ng valve is OFF w The Reversing valve does not turn ON before the compressor starts up ON OFF ON OFF Outdoor fan Compressor 5 0 sec 15 sec ON OFF Compressor Outdoor fan Reversing valve ON OFF ON OFF COOL 5 seconds HEAT 5 seconds 9 12 Outdoor fan motor control The AC fan motor turns ON OFF interlocking with the compressor ON The AC fan motor turns on 5 0 seconds before the compressor starts up OFF ...

Страница 37: ...dicator lamp flashes to show abnormality Controlled voltage is applied to AC fan motor The microprocessor outputs pulse every 100Hz every 50Hz in half wave Fan speed varies according to the time span between a Zero cross point on the commercial wave and a pulse out put point The microprocessor drives SSR on relay p c board The microprocessor detects rotational frequency of AC fan motor using Hall ...

Страница 38: ...the indoor unit number Therefore at and after the second time indoor unit accepts the remote controller of the initial setting number At setting error turn the power supply off to cancel the individual operation and then turn the power supply on to restart the setting Remove batteries before modification The board has a print as shown below NOTE Fore remodeling take out the batteries at first Afte...

Страница 39: ...on settings remain 2After the power is restored the unit restarts automatically according to the memory However it takes at least 3 minutes for the compressor to start running NOTE The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remote controller If the main power is turned off or a power failure occurs while AUTO START STOP timer is act...

Страница 40: ...ts for bursting and discoloration 3 When troubleshooting refer to the flow chart and the check table on page 38 4 How to replace batteries Weak batteries may cause the remote controller malfunction In this case the remote controller can not be repaired only by the battery replacement To operate the remote controller normally replace the batteries in the following order This remote controller has t...

Страница 41: ... OFF Cause in outdoor unit Outdoor control system error wIn case of serial signal error the mis wiring indication will appear by turning the power off and then turning it back on 5 flashes 2 5 seconds OFF 6 flashes 2 5 seconds OFF 12 flashes 2 5seconds OFF Operation start 1 flash 2 5 seconds or 0 5 seconds OFF Refer H Check of indoor electronic P C board on page 50 2 flashes 2 5 seconds OFF Refer ...

Страница 42: ...e thermistor is abnormal when open circuit is detected more than 10 min after compressor start up When nonvolatile memory data cannot be read properly on outdoor control P C board outdoor unit stops and restarts 3 minutes later Shortage of refrigerant Outdoor electronic control p c board Refer to I Check of outdoor thermistors on page 50 Refer to the characteristics of indoor coil thermistor auxil...

Страница 43: ... seconds OFF 5 flashes 2 5 seconds OFF one flash 2 5 seconds OFF 3 flash 2 5 seconds OFF 4 flashes 2 5 seconds OFF 5 flashes 2 5 seconds OFF 8 flashes 2 5 seconds OFF 7 flashes 2 5 seconds OFF Converter power system Outdoor power system Outdoor thermistors Outdoor control system Over current protection Discharge temperature overheat protection Fin temperature thermistor overheat protection High pr...

Страница 44: ...irm the wiring is correct before the operation starts w3 Replace indoor electronic control P C board w3 Be sure to release the failure mode recall function after checking w The serial signal indication on the Power monitor lamp right side facilitates checking abnormality based on the failure mode Mis wiring indication No No Yes Correct wiring Replace outdoor electronic control P C board Main circu...

Страница 45: ...bnormal 5k 55K Open or short circuit Disconnect the connector and measure the resistance with a tester Before measurement hold the termistor with your hands to warm it up Part temperature 20 40 normal abnormal 100k 250K Open or short circuit Disconnect the connector and measure the resistance with a tester Part temperature 10 80 normal abnormal 5k 30K Open or short circuit Disconnect the connector...

Страница 46: ...rmal abnormal Measure the resistance between the terminals with a tester Part temperature 10 40 Measure the resistance with a tester Part temperature 10 40 termina CN724 normall abnormal WHT RED RED ORN YLW BRN 42 52 Open or short circuit BRN BLU terminal normal abnormal WHT BLK 173 7 212 6 BLK RED 277 8 339 9 Open or short circuit YLW BLK 11 4 14 1 approx 300 in each phase open or short circuit n...

Страница 47: ...rt heating opration by pressing the Emergency operation switch on the indoor unit test run mode Measurement point at 3 points BLK WHT BLK RED WHT RED NOTE Measure AC voltage at 3 points more than one minute ofter the outdoor fan motor starts running Check of IPM B Disconnect the connector between compressor and IPM and measure resistance between terminals on the IPM Measurement point at 6 points B...

Страница 48: ... stop of the inverter due to overcurrent Judgment For reference 0 10 seconds abnormal short 10 60 seconds abnormal compressor lock out 60 seconds 5 minutes abnormal refrigerant circuit defect more than 5 minutes normal w Measure resistace between the lead wires at 3 points Outdoor fan starts Abnormal Compressor short circuit or layer short Abnormal Compressor lock out Abnormal refrigerant circuit ...

Страница 49: ...dio Is voltage approx 4V DC Are there any fluorescent lights of inverter or radio start type within 1 meter Is resistance 0 short or open Connector is not properly soldered Replace batteries and then press RESET button See page 32 Receiver defect Indoor electronic control P C board defect Indoor fan motor defect Indoor electronic control P C board defect CN211 3 2 1 fan motor indoor electronic con...

Страница 50: ...ncy operation switch Discharge temperature thermistor Fin temperature thermistor As per the characteristics on page 55 As per the characteristics on page 55 Does the unit operate 10 minutes or more No Yes Thermal block Is LED in the electronic control P C board flashing 5 minutes Inferior electronic control P C board No Yes Check both parts side and pattern side of indoor electronic control P C bo...

Страница 51: ...1 on relay P C board Disconnect connector between compressor and IPM Turn power on to indoor unit and press Emergency operation switch 3 minites after power on measure voltage between terminals of CN 771 1 CN913 Relay P C P C board 2 Reversing valve AC 220 240V Yes Yes Yes No No No CN771 Relay P C board 1 2 3 4 5 6 fan motor In out Connecting Wire outdoor terminal block TB1 N 2 3 Cooling operation...

Страница 52: ... between connector CN 201 1 on indoor electronic control P C board and terminal block N Yes No No No Flash How to check power supply and others Yes No CN201 Indoor electronic control P C board Check the applicable parts by LED indication Check of electronic control P C board N Not become cooling heating Not increase speed of compressor rotation Replace electronic control P C board Does the outdoor...

Страница 53: ...el it vibrate Is LEV coil resistance as per characterictics below Do you hear LEV click click No Yes Yes Yes LEV is normal Yes Yes No No LEV CN 724 WHT 6 RED 1 RED 1 ORE 4 YLW 5 BRN 2 BRN 2 BLU 3 resistance 39 56 Characteristics of LEV coil After you have followed the entire flow chart of Check of linear expansion valve LEV be sure to follow the procedure below Replace current limiting resistor Ch...

Страница 54: ...Indoor coil thermistor RT12 Timer short mode point Room temperature thermistor RT11 Indoor coil thermistor RT12 13 0 0 10 20 30 40 10 20 30 40 50 60 Emergency operation switch Power supply input 220 240V AC Fan motor power supply How to set Auto restart function Cut the Resistor JR07 Refer page 39 5V DC 12V DC Temperature Resistance k Indoor coil thermistor RT13 ...

Страница 55: ...ture Fin temperature thermistor RT64 Resistance k Resistance k Resistance k MUZ A09RV MUZ A12RV E1 E1 Fin temperature thermistor RT64 CN642 Outdoor electronic control P C board 370V DC C62 Defrost termination temperature change Jumper wire JP7 Defrost thermistor RT62 CN641 Discharge temperature thermistor RT61 LED monitor lamp Power supply zero crossing signal 220 240V AC CN726 Connector for indoo...

Страница 56: ...A09RV MUZ A12RV Noise filter P C board E1 E1 Outdoor fan motor 220 240V AC R V coil 220 240V AC Relay P C board 220 240V AC FRONT BACK FRONT BACK Power supply zero crossing signal 220 240V AC CN911 220 240V AC ...

Страница 57: ... below Terminal with lock mechanism Detaching points 2 Removing the electronic control P C board and the display P C board 1 Remove the front panel Refer to 1 2 Remove the screw of the electrical cover Remove the electrical cover 3 Remove the terminal cover Remove the screw of the terminal block 4 Remove the cord clamp 5 Remove the screw of the ground wire 6 Disconnect all the connectors and all t...

Страница 58: ...motor disconnect the connector 3 Remove the vane motor Photo 4 Photo 5 Drain hose Vane motor Fan motor screws Indoor coil thermistor 5 Removing the line flow fan and the indoor fan motor 1 Remove the front panel Refer to 1 2 Remove the electrical box 3 Pull out the drain hose from the nozzle assembly remove the nozzle assembly 4 Remove the screws fixing the fan motor 5 Remove the screws fixing the...

Страница 59: ...emove all the connectors and the terminals on noise filter P C board 4 Remove the ground wire screwed down on the relay panel 5 Remove the noise filter P C board 4 Removing the relay p c board 1 Remove the service panel and the cabinet refer to 1 2 Remove all the connectors and the terminals on relay P C board 3 Remove the relay P C board 3 Removing the control p c board 1 Remove the service panel...

Страница 60: ...lded part of the discharge pipe 7 Disconnect the welded part of the suction pipe 8 Remove nuts fixing the compressor 9 Remove the compressor 6 Removing the outdoor fan motor 1 Remove the cabinet Refer to 1 2 Unconnect the connector remove the clamp of fan motor lead wire 3 Remove the propeller nut and remove the propeller 4 Remove screws fixing the fan motor Propeller fan Propeller nut Set screws ...

Страница 61: ...T WH AIR CLEANING FILTER DEODORIZING FILTER Symbol in Wiring Diagram Q ty unit 2PCS SET 3PCS SET See page 65 MAC 1300FT See page 65 MAC 1800DF Remarks Part No NO Part Name 1 1 2 1 1 2 3 1 1 1 1 1 MSZ A09RV E1 WH 1 2 3 4 5 6 7 8 9 10 11 12 WH 1 1 2 1 1 2 3 1 1 1 1 1 MSZ A12RV E1 13 2 INDOOR UNIT HEAT EXCHANGER 4 7 6 3 2 10 5 11 9 13 12 8 1 CATCH SCREW CAP E02 448 620 E02 151 667 E02 151 666 INDOOR ...

Страница 62: ... RECEIVER P C BOARD VANE CLANK SET VANE MOTOR SUPPROT SET THERMAL FUSE FUSE VARISTOR POWER SUPPLY CORD Symbol in Wiring Diagram Q ty unit UP DOWN RIGHT LEFT RC4V19 2PES SET 3P AUTO RESTART AUTO RESTART UP DOWN RIGHT LEFT 93 3 15A Remarks Part No NO Part Name MV1 MV2 MF RT11 RT12 13 TB F12 F11 NR11 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 MSZ A09RV E1 WH 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1...

Страница 63: ...R SUPPORT SEPARATOR OUTDOOR HEAT EXCHANGER REVERSING VALVE PIPE ASSEMBLY STOP VALVE LIQUID STOP VALVE GAS COMPRESSOR BASE CONDENSER NET CAPILLARY TUBE MUFFLER MUFFLER SPECIAL Symbol in Wiring Diagram Q ty unit RA6V28 EXP VALVE CAPILLARY SNB 092FBA 2PC SET 3 0 2 0 300 Remarks Part No NO Part Name MF MC 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 MUZ A09RV E1 MUZ A12RV E1 5 9 17 4 15 16 6 2 1 8 10 13 14...

Страница 64: ...D TERMINAL BLOCK TERMINAL BLOCK REVERSING VALVE COIL FIN TEMPERATURE THERMISTOR REACTOR THERMISTOR SET RELAY P C BOARD Symbol in Wiring Diagram Q ty unit Remarks Part No NO Part Name TB1 TB2 21S4 RT64 L64 RT61 62 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 MUZ A09RV E1 MUZ A12RV E1 1 9 6 7 2 8 3 5 MUZ A09RV WH MUZ A12RV WH E1 E1 13 6 OUTDOOR UNIT ELECTRICAL PARTS Part number that is circled is not shown i...

Страница 65: ...d DO NOT remove or attach AIR CLEANING FILTER during unit operation 13 8 DEODORIZING FILTER DEODORIZING FILTER removes ammonia and hydrogen sulfide emitted from tobacco and odors of pets Clean DEODORIZING FILTER every two weeks If the filter is particularly dirty clean the filter more often For cleaning soak the filter in warm water for a while and then wash and rinse it Dry the filter in the shad...

Страница 66: ...CHI TOKYO100 8310 TELEX J24532 CABLE MELCO TOKYO C C Copyright 1999 MITSUBISHI ELECTRIC ENGINIEERING CO LTD Issued in Mar 1999 MEE No OB230 244 Printed in Japan New publication effective Mar 1999 Specifications subject to change without notice ...

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