Mitsubishi MXZ-5A100VA Manuel de service

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ··································· 22. PART NAMES AND FUNCTIONS ····················· 43. SPECIFICATION ··

10COOLING INDOOR Dry-bulb temperature 27.0°C Wet-bulb temperature 19.0°C OUTDOOR Dry-bulb temperature 35.0°C Wet-bulb temperature 24.0°CHEATING I

MXZ-2B40VA HEATINGCurrent PowerUnit A Unit B (A) factor(%)( 0.9 - 3.1 ) ( 0.230 - 1.080 )( 0.9 - 3.1 ) ( 0.230 - 1.080 )( 0.9 - 4.0 ) ( 0.110 - 0.910

MXZ-2B52VA COOLINGCurrent PowerUnit A Unit B (A) factor(%)( 0.9 - 2.8 ) ( 0.280 - 0.820 )( 0.9 - 2.9 ) ( 0.280 - 0.870 )( 0.9 - 3.0 ) ( 0.120 - 0.620

MXZ-2B52VA HEATINGCurrent PowerUnit A Unit B (A) factor(%)( 0.9 - 3.1 ) ( 0.200 - 1.140 )( 0.9 - 3.3 ) ( 0.200 - 1.170 )( 0.9 - 4.0 ) ( 0.110 - 0.910

MXZ-3B54VA COOLINGCurrent PowerUnit A Unit B Unit C (A) factor(%)( 1.4 - 3.0 ) ( 0.410 - 1.020 )( 1.4 - 3.0 ) ( 0.410 - 1.020 )( 1.4 - 3.0 ) ( 0.420 -

MXZ-3B54VA COOLINGCurrent PowerUnit A Unit B Unit C (A) factor(%)Cooling capacity (kW) Outdoor unitTotalIndoor unitscombination power consumption(kW)(

MXZ-3B54VA COOLINGCurrent PowerUnit A Unit B Unit C (A) factor(%)Cooling capacity (kW) Outdoor unitTotalIndoor unitscombination power consumption(kW)(

MXZ-3B54VA HEATINGCurrent PowerUnit A Unit B Unit C (A) factor(%)( 1.2 - 3.0 ) ( 0.400 - 1.020 )( 1.2 - 3.9 ) ( 0.390 - 1.440 )( 1.2 - 4.2 ) ( 0.380 -

MXZ-3B54VA HEATINGCurrent PowerUnit A Unit B Unit C (A) factor(%)Outdoor unitpower consumption(kW)Heating capacity (kW)TotalIndoor unitscombination( 2

MXZ-3B54VA HEATINGCurrent PowerUnit A Unit B Unit C (A) factor(%)Outdoor unitpower consumption(kW)Heating capacity (kW)TotalIndoor unitscombination( 2

MXZ-3B68VA COOLINGIndoor units Current Powercombination Unit A Unit B Unit C (A) factor(%)( 1.4 - 3.0 ) ( 0.450 - 1.020 )( 1.4 - 3.0 ) ( 0.450 - 1.020

11COOLING INDOOR Dry-bulb temperature 27.0°C Wet-bulb temperature 19.0°C OUTDOOR Dry-bulb temperature 35.0°C Wet-bulb temperature 24.0°CHEATING I

MXZ-3B68VA COOLINGIndoor units Current Powercombination Unit A Unit B Unit C (A) factor(%)Cooling capacity (kW) Outdoor unitpower consumption(kW)Total

MXZ-3B68VA COOLINGIndoor units Current Powercombination Unit A Unit B Unit C (A) factor(%)Cooling capacity (kW) Outdoor unitpower consumption(kW)Total

MXZ-3B68VA COOLINGIndoor units Current Powercombination Unit A Unit B Unit C (A) factor(%)Cooling capacity (kW) Outdoor unitpower consumption(kW)Total

MXZ-3B68VA HEATING Indoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Total power consumption(kW) (A) facto

MXZ-3B68VA HEATING Indoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Total power consumption(kW) (A) facto

MXZ-3B68VA HEATING Indoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Total power consumption(kW) (A) facto

MXZ-3B68VA HEATING Indoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Total power consumption(kW) (A) facto

MXZ-4B71VA COOLING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)( 1.4 - 3.0 ) ( 0.450 - 1.020 )( 1.4 - 3.0 ) ( 0.450 - 1.020 )( 1.4 - 3.0 ) (

MXZ-4B71VA COOLING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Indoor unitscombinationCooling capacity (kW)TotalOutdoor unitpower consumptio

MXZ-4B71VA COOLING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Indoor unitscombinationCooling capacity (kW)TotalOutdoor unitpower consumptio

12COOLING INDOOR Dry-bulb temperature 27.0°C Wet-bulb temperature 19.0°C OUTDOOR Dry-bulb temperature 35.0°C Wet-bulb temperature 24.0°CHEATING I

MXZ-4B71VA COOLING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Indoor unitscombinationCooling capacity (kW)TotalOutdoor unitpower consumptio

MXZ-4B71VA COOLING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Indoor unitscombinationCooling capacity (kW)TotalOutdoor unitpower consumptio

MXZ-4B71VA COOLING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Indoor unitscombinationCooling capacity (kW)TotalOutdoor unitpower consumptio

MXZ-4B71VA COOLING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Indoor unitscombinationCooling capacity (kW)TotalOutdoor unitpower consumptio

MXZ-4B71VA COOLING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Indoor unitscombinationCooling capacity (kW)TotalOutdoor unitpower consumptio

MXZ-4B71VA HEATING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)( 1.2 - 3.0 ) ( 0.400 - 0.950 )( 1.2 - 3.9 ) ( 0.390 - 1.330 )( 1.2 - 4.2 ) (

MXZ-4B71VA HEATING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Outdoor unitpower consumption(kW)Indoor unitscombinationHeating capacity (kW)

MXZ-4B71VA HEATING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Outdoor unitpower consumption(kW)Indoor unitscombinationHeating capacity (kW)

MXZ-4B71VA HEATING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Outdoor unitpower consumption(kW)Indoor unitscombinationHeating capacity (kW)

MXZ-4B71VA HEATING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Outdoor unitpower consumption(kW)Indoor unitscombinationHeating capacity (kW)

13NOISE CRITERIA CURVES490807060504030201063 125 250 500 1000 2000 4000 8000APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISENC-60NC-50NC-40NC-30NC-20

MXZ-4B71VA HEATING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Outdoor unitpower consumption(kW)Indoor unitscombinationHeating capacity (kW)

MXZ-4B71VA HEATING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Outdoor unitpower consumption(kW)Indoor unitscombinationHeating capacity (kW)

MXZ-4B71VA HEATING Current PowerUnit A Unit B Unit C Unit D (A) factor(%)Outdoor unitpower consumption(kW)Indoor unitscombinationHeating capacity (kW)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

1490807060504030201063 125 250 500 1000 2000 4000 8000APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISENC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA COOLINGIndoor units Cooling capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

15OUTLINES AND DIMENSIONS5MXZ-2B30VAMXZ-2B40VAMXZ-2B52VA51 51170.444400304 325344.517.54022.355028010800500150302.51323 28551251.169handleAir out2-10

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-4B80VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Total power consumption(kW) (A)

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

16100500350350100500100100350200500Service spaceMore thanMore thanMore thanMore thanMore thanMore thanMore thanMore thanMore thanMore thanMore than1.I

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

17100500350350100500100100350200500Service spaceMore thanMore thanMore thanMore thanMore thanMore thanMore thanMore thanMore thanMore thanMore than1.I

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA COOLINGIndoor units Cooling capacity (kW) Outdoor unitCurrent Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption(

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

18MXZ-4B80VA MXZ-5B100VAUnit: mm460317900Air out900HandleHandle3574200 20050035250270355(Bolt pitch)3874027161611243- 33 Drain hole(Base bolt M1

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

19WIRING DIAGRAM6MXZ-2B30VA MXZ-2B40VA MXZ-2B52VA TB3TB2TB1

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

2TECHNICAL CHANGES1MXZ-4A80VA -E2 MXZ-4B80VA -E11. Indoor units combinations have been added (15/20 class).2. Electronic control P.C. board has be

20MXZ-3B54VA

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

MXZ-5B100VA HEATINGIndoor units Heating capacity (kW) Outdoor unit Current Powercombination Unit A Unit B Unit C Unit D Unit E Total power consumption

21MXZ-3B68VA

22MXZ-4B71VA

23MXZ-4B80VA

24MXZ-5B100VA

25REFRIGERANT SYSTEM DIAGRAM7abOutdoorunitIndoorunits10m10m10m Refrigerant piping length (one way, 2 unit total)Max.HeightdifferenceOutdoor unit prech

26 Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes, refer to the tables below. UNIT: mm (

27Stop valve(with strainer #100)LEV ALEV BCompressorDefrostthermistorRT61DistributorMuffler4-way valveIndoor unitBIndoor unitAIndoor unitAIndoor unitB

28Strainer#100PowerreceiverLEV ALEV BLEV COil separatorCompressorDefrostthermistorRT61DistributorMuffler4-way valveLEV EIndoor unitCIndoor unitBIndoor

29UNIT: mm Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes, refer to the tables below. W

3MXZ-4A71VA -E7 MXZ-4B71VA -E11. Indoor units combinations have been added (15/20 class).2. Electronic control P.C. board has been changed.3. Nois

30abcdOutdoorunitIndoorunits15m15m10mRefrigerant piping length (one way, 4 unit total)Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 40)

31abcdOutdoorunitIndoorunits15m10m15mRefrigerant piping length (one way, 5 unit total)Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 40)

32PERFORMANCE CURVES8The standard specifications apply only to the operation of the air conditioner under normal conditions.Since operating conditions

338-1. CAPACITY AND THE INPUT CURVES 22 class8.57.87.16.45.85.16.35.85.34.84.33.99.38.57.87.06.35.68.07.36.76.05.44.860 class10.69.78.87.97.16.313.111

34MXZ-4B80VA22 class8.57.87.16.45.85.19.38.57.87.06.35.66.35.85.34.84.33.98.07.36.76.05.44.86.35.85.34.84.33.98.07.36.76.05.44.871 class60 class10.69.

35MXZ-5B100VA22 class8.57.87.16.45.85.19.38.57.87.06.35.671 class60 class10.69.78.87.97.16.39.58.78.07.26.55.713.712.411.310.19.08.017.015.413.912.511

368-2. CAPACITY AND INPUT CORRECTION BY INVERTER OUTPUT FREQUENCY (single operation)MXZ-2B30VA 15-class unit 20-class unit 22-class unit 25-class

37MXZ-2B40VA0 50 100 1500.51.01.5<COOL>CapacityFrequencyHz0501001500.51.01.5<COOL>Total inputFrequencyHz0 50 100 1500.51.01.5<HEAT>C

380 50 100 1500.00.51.01.5<COOL>CapacityFrequencyHz0 50 100 1500.00.51.01.5<COOL>Total inputFrequencyHz0 50 100 1500.00.51.01.5<HEAT>

39<COOL>CapacityFrequencyHz0 50 100 1500.00.51.01.5<COOL>Total inputFrequencyHz<HEAT>CapacityFrequencyHz0 50 100 1500.00.51.01.5<

4PART NAMES AND FUNCTIONS2ACCESSORIESDrain socketDrain cap (MXZ-3B/4B/5B)12MXZ-4B80VAMXZ-5B100VAAir outletDrain outletAir inlet(Back and side)Air outl

400 50 100 1500.51.01.5<COOL>CapacityFrequencyHz0 50 100 1500.51.01.5<HEAT>CapacityFrequencyHz0 50 100 1500.51.01.5<COOL>CapacityFre

41<COOL>CapacityFrequencyHz<COOL>Total inputFrequencyHz<HEAT>Capacity <HEAT>Total inputFrequencyHzFrequencyHz<COOL>Capac

42<COOL>CapacityFrequencyHz<COOL>Total inputFrequencyHz<HEAT>Capacity <HEAT>Total inputFrequencyHzFrequencyHz<COOL>Capac

43MXZ-4B71VA<COOL>CapacityFrequencyHz<COOL>Total inputFrequencyHz<HEAT>Capacity <HEAT>Total inputFrequencyHzFrequencyHz<COO

44MXZ-4B71VA<COOL>CapacityFrequencyHz<COOL>Total inputFrequencyHz<HEAT>Capacity <HEAT>Total inputFrequencyHzFrequencyHz<COO

45MXZ-4B80VA0 50 100 1500.51.01.5<COOL>CapacityFrequencyHz0 50 100 1500.51.01.5<COOL>Total inputFrequencyHz0 50 100 1500.51.01.5<HEAT&g

460 50 100 1500.51.01.5<COOL>CapacityFrequencyHz0 50 100 1500.51.01.5<COOL>Total inputFrequencyHz0 50 100 1500.51.01.5<HEAT>Capacity

47MXZ-5B100VA0 50 100 1500.51.01.5<COOL>CapacityFrequencyHz0 50 100 1500.51.01.5<COOL>Total inputFrequencyHz0 50 100 1500.51.01.5<HEAT&

480 50 100 1500.51.01.5<COOL>CapacityFrequencyHz0 50 100 1500.51.01.5<COOL>Total inputFrequencyHz0 50 100 1500.51.01.5<HEAT>Capacity

491. Press EMERGENCY OPERATION switch to COOL or HEAT mode (COOL : Press once, HEAT : Press twice).2. Test run operation starts and continues to opera

5SPECIFICATION3Outdoor modelIndoor units number Piping total lengthConnecting pipe lengthHeight difference (Indoor ~ Outdoor)Height difference (Indoor

50MXZ-2B52VA 22-class unit 25-class unit 35-class unit 15-class unit 20-class unit 22-class unit 25-class unitAmbient temperature ( )Ambient

51 22-class unit 25-class unit 15-class unit 20-class unitMXZ-3B54VAAmbient temperature ( )Ambient humidity (%)Ambient temperature ( )Ambien

52 50-class unitAmbient temperature ( )Ambient humidity (%)Ambient temperature ( )Ambient humidity (%)Outdoor low pressure(MPa[Gauge])Outdoor uni

53MXZ-4B80VA 22-class unitAmbient temperature ( )Ambient humidity (%)Ambient temperature ( )Ambient humidity (%)Outdoor low pressure(MPa[Gauge])O

54MXZ-5B100VAAmbient temperature ( )Ambient humidity (%)Ambient temperature ( )Ambient humidity (%)Outdoor low pressure(MPa[Gauge])Outdoor unit cu

55Ambient temperature ( )Ambient humidity (%)Ambient temperature ( )Ambient humidity (%)Outdoor low pressure(MPa[Gauge])Outdoor unit current (A)0.

56 Condition : Operation : TEST RUN OPERATION (Refer to 8-3.)(2) HEAT operationDry bulb temperature (°C)Indoor20.014.521Outdoor76151220.014.5Wet bul

57 22-class unit 25-class unit 35-class unitMXZ-3B54VA 42-class unit 50-class unit 15-class unit 20-class unit5 10152025234567Ambient temperat

58 35-class unit5 10152025234567Ambient temperature ( )32HzOutdoor unit current (A) 42-class unitAmbient temperature ( )Outdoor unit current (A)

59ACTUATOR CONTROL9Relation between main sensor and actuatorDischarge temperature thermistorIndoor coil thermistorDefrost thermistorFin temperature th

6Outdoor modelIndoor units number Piping total lengthConnecting pipe lengthHeight difference (Indoor ~ Outdoor)Height difference (Indoor ~ Indoor)Func

60SERVICE FUNCTIONS1010-1. LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT)10-2. LOWERING THE OPERATING NOISE OF THE OUTDOOR UNITDe

61OUTDOOR UNITINDOOR UNIT AINDOOR UNIT B<Incorrect piping>ABAB10-4. AUTO LINE CORRECTING Outdoor unit has an auto line correcting function which

62Improper wiring or piping can be automatically detected by pressing the piping/wiring correction switch (SW871).When improper wiring or piping is de

6310-5. INCREASING MAXIMUM COMPRESSOR OPERATIONAL FREQUENCY AND FAN SPEED OF THE OUTDOOR UNIT <MXZ-4B80VA, MXZ-5B100VA>10-6. CHANGING DE

64TROUBLESHOOTING113. Troubleshooting procedure1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate a

652. Outdoor unit failure mode tableAbnormal point(Failure mode / protection)ConditionRemedyIndoor/outdoorunit failure moderecall functionLED indicati

6611-time flash15-time flash• Replace the power board.• Replace the power board.A short or open circuit is detected in the current sensorduring co

67The frequency of the compressor is kept 80Hz or more and the discharge temperature is kept under 50°C (COOL mode)/40°C (HEAT mode)for more than 40 m

68Operation startCheck the outdoor unit LED indicator.Refer to 11-6. "Check of power supply".• When cooling,dew drops in the non-operatingin

6911-4. TROUBLESHOOTING CHECK TABLE MXZ-2BNo.12345689101112131415Symptom'Outdoorunit stops and restarts 3 minutes later' is repeated.Primary

7MXZ-2B52VASingle phase230 V, 50 Hz1 to 2Max. 30Max. 20Refer to 9Refer to 915977.220.35SNB130FGBHT1,400U-V 0.98V-W 0.98 W-U 0.98RC0J50-CIBLK-WHT 14.2

70--9 timesLightingInverter check modeLightingLightingNormalThe unit is operated with emergency operation switch.-5 timesLightingCooling high-pressure

71MXZ-3B/4B/5BLED1(Red) LED2(Yellow)Lighting TwiceOutdoor power systemLighting 3 timesDischarge temperaturethermistor• Refer to 11-6. "Check of

72Primary current protectionSecondary current protectionHigh-pressure protectionDefrosting in cooling3 timesLightingDischarge temperatureprotection4 t

73Defrost thermistor (RT61)Fin temperature thermistor (RT64)Ambient temperature thermistor (RT65)Outdoor heat exchanger temperature thermistor (RT68)D

74 Check of power supplyOutdoor unit does not operate. Turn ON the power supply.NoYesYesNoYesNoYesNoReplace the power board.Check the main power sup

75Is there rated voltage in the power supply?Is there any miswiring, poor contact, or wire disconnection of the indoor/outdoor connecting wire? 1. Mi

76 Check of R.V. coilNoYesNoYesNoYesNoYesNoYes1. Disconnect the lead wire leading to the compressor.2. 3 minutes after turning ON the power supply,

77 Check of LEVNoYesNoYesTurn ON the power supply to the outdoor unit after checking LEV coil is mounted to the LEV body securely.Is "click - c

78 How to check inverter/compressor• When heating, room does not get warm.• When cooling, room does not get cool.NoNoYesYesYesNoYesNoYesDisconnect t

79 Check of outdoor thermistors• When thermistor is abnormal.Disconnect the connector in the following table and measure the resistance of the therm

8COOLING INDOOR Dry-bulb temperature 27.0°C Wet-bulb temperature 19.0°C OUTDOOR Dry-bulb temperature 35.0°C Wet-bulb temperature 24.0°CHEATING IN

80 Check of HPSInfinity0ΩYesNo1. Disconnect the connector CN681.2. Check the resistance of HPS 1 minute after the outdoor unit power supply was turn

81 The other cases Indoor unit does not operate. (different operating models in multi system)• When you try to run two indoor units simultaneously,

8211-7. TEST POINT DIAGRAM AND VOLTAGE1. Inverter P.C. boardMXZ-2B30VA MXZ-2B40VA MXZ-2B52VABack side of unit-20 -10 0 10 20 30 40010203040506070

832. Outdoor electronic control P.C. boardLED 1LED 2Bus-bar voltageCN801325~370 V DCInput(((LEV Room A(12V DCpulse wave(LEV Room B(12V DCpulse wave(LE

840 1020304050607080901001101207006005004003002001000Resistance (kΩ)Temperature (°C)Discharge temperature thermistor (RT62)-20-10 0 102030401009080706

85MXZ-3B54VA MXZ-3B68VA MXZ-4B71VA230V ACOutputF64 FUSET2AL250V{{CN901To electroniccontrol P.C. boardCN912R.V. coil230V AC{CN902To powerboardCN903

86MXZ-3B54VA MXZ-3B68VA MXZ-4B71VA MXZ-4B80VA MXZ-5B100VA 5. Outdoor Power board325-370V DCOutput(Red)(White)Connect to the compressorVoltage

87MXZ-2B30VA MXZ-2B40VA MXZ-2B52VA6. Display P.C. boardMXZ-2B30VA MXZ-2B40VA MXZ-2B52VA7. Interface P.C. boardSW1GND5VLED2LED1GND5VSerial

88DISASSEMBLY INSTRUCTIONS12(1) Slide the sleeve and check if there is a locking lever or not.(2) The terminal with this connector has the loc

894. Removing the discharge temperature thermistor, defrost thermistor and outdoor heat exchanger temperature thermistor (1) Remove the top panel, cab

9COOLING INDOOR Dry-bulb temperature 27.0°C Wet-bulb temperature 19.0°C OUTDOOR Dry-bulb temperature 35.0°C Wet-bulb temperature 24.0°CHEATING IN

90OPERATING PROCEDUREPHOTOSPhoto 5Defrostthermistor5. Removing outdoor fan motor(1) Remove the top panel, cabinet and service panel (Refer to 1).(

9112-2. MXZ-3B54VA MXZ-3B68VA MXZ-4B71VANOTE: Turn OFF power supply before disassembling.OPERATING PROCEDUREPHOTOS1. Removing the compressor(1) R

92OPERATING PROCEDUREPHOTOS3. Removing the fan motor(1) Remove the top panel, the service panel, and the cabinet (Photo 1, 2).(2) Disconnect the con

93OPERATING PROCEDURE PHOTOS6. Removing the reactor(1) Remove the top panel (Photo 1).(2) Remove the service panel, cabinet, back panel, and the

9412-3. MXZ-4B80VA MXZ-5B100VANOTE: Turn OFF power supply before disassembling.OPERATING PROCEDUREPHOTOS1. Removing the compressor(1) Remove the

95OPERATING PROCEDUREPHOTOSPhoto 4Suction pipe welded partDischarge pipe weld-ed partCompressor nuts (3 places)Photo 3Screws of the electrical parts 2

OPERATING PROCEDUREPHOTOS4. Removing the expansion valve(1) Remove the top panel (Photo 1,2).(2) Remove the service panel (Photo 1). (Gas recovery i

MXZ-2B30VA COOLINGCurrent PowerUnit A Unit B (A) factor(%)( 0.9 - 2.4 ) ( 0.140 - 0.670 )( 0.9 - 2.6 ) ( 0.140 - 0.720 )( 0.9 - 3.0 ) ( 0.120 - 0.620

MXZ-2B30VA HEATINGCurrent PowerUnit A Unit B (A) factor(%)( 0.9 - 3.1 ) ( 0.140 - 0.820 )( 0.9 - 3.1 ) ( 0.140 - 0.850 )( 0.9 - 4.0 ) ( 0.110 - 1.100

MXZ-2B40VA COOLINGCurrent PowerUnit A Unit B (A) factor(%)( 0.9 - 2.7 ) ( 0.260 - 0.890 )( 0.9 - 2.7 ) ( 0.260 - 0.890 )( 0.9 - 3.0 ) ( 0.120 - 0.620