Mitsubishi Electric MSC-A09YV Manual de servicio

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ····································22. PART NAMES AND FUNCTIONS······················53. SPECIFICATION····

10MSC-A07YV - E1MUH-A07YV - E1 MUH-A12YV - E1 MSC-A12YV - E1MUH-A09YV - E1 MSC-A09YV - E18.57.87.16.45.85.19.68.88.07.26.55.711.010.09.18.27.46.520.41

118-2.OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENTCOOL operation① Both indoor and outdoor unit are under the same temperature/humidity condition.➁ Ai

12HEAT operationCondition indoor:Dry bulb temperature 20.0°CWet bulb temperature 14.5°COutdoor:Dry bulb temperature 7,15,20°CWet bulb temperature 6,12

13MSC-A07YV - : MUH-A07YV -E1E1PERFORMANCE DATACOOL operation (230V)21 18 2.70 1.51 0.56 572 2.59 1.45 0.56 601 2.48 1.39 0.56 629 2.39 1.34 0.56 6

14MSC-A07YV - : MUH-A07YV -E1E1PERFORMANCE DATACOOL operation (230V)21 18 2.25 1.26 0.56 701 2.07 1.16 0.56 744 1.99 1.11 0.56 75821 20 2.37 1.04 0

15MSC-A09YV - : MUH-A09YV -E1E1PERFORMANCE DATACOOL operation (230V)21 18 3.00 1.56 0.52 636 2.87 1.49 0.52 668 2.75 1.43 0.52 700 2.65 1.38 0.52 7

16MSC-A09YV - : MUH-A09YV -E1E1PERFORMANCE DATACOOL operation (230V)21 18 2.50 1.30 0.52 779 2.30 1.19 0.52 827 2.21 1.15 0.52 84321 20 2.63 1.05 0

17MSC-A12YV - : MUH-A12YV -E1E1PERFORMANCE DATACOOL operation (230V)21 18 4.11 1.97 0.48 872 3.94 1.89 0.48 916 3.78 1.81 0.48 959 3.64 1.75 0.48 1

18MSC-A12YV - : MUH-A12YV -E1E1PERFORMANCE DATACOOL operation (230V)21 18 3.43 1.65 0.48 1068 3.15 1.51 0.48 1134 3.03 1.45 0.48 115521 20 3.61 1.3

19MSC-A07YV - : MUH-A07YV -E1E1PERFORMANCE DATAHEAT operation (230V)MSC-A09YV - : MUH-A09YV -E1E1OUTDOOR WB(:)INDOOR-10 -5 0 5 10 15 20DB(:)Q

TECHNICAL CHANGES21RefrigeratingoilRefrigerantNew refrigerantR410AHFC-32: HFC-125 (50%:50%)Pseudo-azeotropic refrigerantNot includedA1/A172.6-51.41.55

2. DefrostingDefrosting of outdoor heat exchanger is controlled by DEICER P.C. board, with detection by the defrost thermistor RT61.(1) Starting condi

21NOTE ● When the indoor coil thermistor RT12 reads above 0°C, indoor fan operates at Very Low for 30 seconds.● When the indoor coil thermistor RT12 r

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

2311-2. Instruction of troubleshootingStartIndoor unit operates.Outdoor unit doesn't operate.Indoor unit doesn't receive the signal from re

AACheck of outdoor unitCompressor and/or outdoor fan motor doesn’t operate.YesCompressor doesn't operate.YesYesIs there 230V AC between 3 on the

25BB Check of outdoor unitDoes compressor stop?NoYesIs there 230V AC between 3 on thecompressor contactor (52C) and N on the outdoor terminal block (

26DDHow to check mis-wiring and serial signal errorMis-wiring is indicated.(0.5-sec. ON, 0.5-sec. OFF)1. Turn OFF the power supply(indoor/outdoor unit

27EE Check of outdoor thermistorMeasure resistance between CN 661 1 and 2.NoYesReplace the thermistor.Defrost thermistor (RT61)Reconnect CN661.Turn O

28MUH-A07YV -MUH-A09YV -MUH-A12YV -Outdoor deicer P.C. boardE1E1E1CN711Outdoor fan motor 230V ACCN721R.V. coil230V ACF61Fuse2A/250V}}CN661 1-2Defro

29DISASSEMBLY INSTRUCTIONS12MUH-A07YV - MUH-A09YV - MUH-A12YV -OUTDOOR UNITE1E1E1OPERATING PROCEDURE PHOTOS1. Removing the cabinet(1) Remove the screw

3-30 -20 -10 0 10 203040 50 60-0.50.00.51.01.52.02.53.03.54.0(MPa [Gauge])R410AR22Conversion chart of refrigerant temperature and pressureSaturated li

303. Removing the propeller and the outdoor fan motor(1) Remove the cabinet. (Refer to 1.)(2) Remove the propeller nut.(3) Remove the propeller.NOTE :

31OPERATING PROCEDURE PHOTOS4. Removing the compressor(1) Remove the cabinet. (Refer to 1.)(2) Remove the relay panel.(3) Remove the soundproof felt.(

32PARTS LIST13No.Part No.Remarks123456789101112131415E02 835 630E02 836 630E02 837 630E02 815 232E02 815 521E02 742 900E02 753 900E02 7

331234567891011E02 665 501E02 835 301E02 672 301E02 752 353E02 694 353E02 696 353E02 835 451E02 836 451E02 128 383E02 817 374E02

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CCCopyright 2003 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistributed in Dec. 2003. No.OB331 6Made in JapanNew publication, effective Dec. 2003Specifica

4Electronic scale for refrigerant chargingOutdoor unitRefrigerant gas cylinderoperating valveRefrigerant gas cylinderfor R410A with siphonRefrigerant

5PART NAMES AND FUNCTIONS2Air inletPipingDrain hoseAir outletDrain outlet(back and side)OUTDOOR UNITMUH-A07YV -MUH-A09YV -MUH-A12YV -E1E1E1ACCESSORIES

NOISE CRITERIA CURVES6490807060504030201063 125 250 500 1000 2000 4000 8000APPROXIMATETERESHOLD OFHEARING FORCONTINUOUSNOISENC-60NC-50NC-40NC-30NC-20N

7OUTLINES AND DIMENSIONS5WIRING DIAGRAM6MODELS WIRING DIAGRAMSYMBOLT61TB1,TB221S452CSYMBOLMFNR61RT61SR61,SR62SYMBOLC1C65DSARF61MCNAMENAME NAMECOMPRESS

REFRIGERANT SYSTEM DIAGRAM87Unit:mmMUH-A12YV -E1OUTDOOR UNIT(with heat insulator)(with heat insulator)Refrigerant pipe [12.74-way valveStop valve(wit

9 Piping size O.D : mm Length of connecting pipe : mModelRefrigerant pipingMax. length : m A2025Indoor unitGas 0.43Liquid 0.5 Gas9.5212.7Liquid6.35