Mitsubishi Electric MCFH-13NV-WH Manuel de service

SERVICE MANUALFLOOR AND CEILING TYPE AIR CONDITIONERSCONTENTS1. TECHNICAL CHANGES ····································22. PART NAMES AND FUNCTIONS····

10Dry Bulb temperature (˚C)202530Relative humidity (%)506070OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENTCOOL operation1 Both indoor and outdoor units

11OUTDOOR DB(:)INDOOR INDOOR21 25 27 30DB(:) WB(:)Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT21 18 4.35 2.35 0.54 1048 4.16 2.25

12OUTDOOR DB(:)INDOOR INDOOR35 40 43DB(:) WB(:)Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT21 18 3.63 1.96 0.54 1284 3.33 1.80 0.54 1362 3.20 1.73

13PERFORMANCE DATACOOL operation(240V)MCFH-13NV - : MUCFH-13NV -E3E3OUTDOOR DB(:)INDOOR INDOOR21 25 27 30DB(:) WB(:)Q SHC SHF INPUT Q SHC SHF INPUT Q

14PERFORMANCE DATACOOL operation(240V)MCFH-13NV - : MUCFH-13NV -E3E3NOTE Q : Total capacity (kW) SHF : Sensible heat factor SHC : Sensible heat capac

15PERFORMANCE DATAHEAT operation(220V)MCFH-13NV - : MUCFH-13NV -E3E3OUTDOOR DB(:)INDOOR-10 -5 0 5 10 15 20DB(:)Q INPUT Q INPUT Q INPUT Q INPUT Q INPU

16MICROPROCESSOR CONTROL9WIRELESS REMOTE CONTROLLEROnce the operation mode are set, the same operation modecan be repeated by simply turning theOPERAT

17— COOL mode of “I FEEL CONTROL” —1. Indoor fan speed controlIndoor fan operates at the set speed by FAN SPEED CONTROL button.In AUTO the fan speed i

18—DRY mode of “I FEEL CONTROL”—The system for dry operation uses the same refrigerant circuit as the cooling circuit.The compressor and the indoor fa

19— HEAT mode of “I FEEL CONTROL” —1. Indoor fan speed control(1) In AUTO the fan speed is as follows.Set temperature minus room temperature: 2 degree

2PART NAMES AND FUNCTIONSINDOOR UNITMCFH-13NV -E3(When installed on the floor)(When the air inlet grille is opened.)Deodorizing filter (gray sponge t

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

219-2. COOL ( ) OPERATION(1) Press OPERATE/STOP(ON/OFF) button.OPERATION INDICATOR lamp of the indoor unit turns on with abeep tone.(2) Select COOL mo

229-5. AUTO VANE OPERATION(1) Vane motor driveThis model is equipped with a stepping motor for the vane. The rotating direction, speed, and angle of t

23(8) Cold air prevention in HEAT operation.When any of the following conditions occurs in HEAT operation, the angle of horizontal vane automatically

249-7. EMERGENCY-TEST OPERATIONWhen the remote controller is missing, has failed or the batteries run down, press the EMERGENCY OPERATION switch on th

25SERVICE FUNCTIONS1010-3. TIMER SHORT MODEFor service, set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board

2611-1. Cautions on troubleshooting1. Before troubleshooting, check the following: 1) Check the power supply voltage.2) Check the indoor/outdoor conne

27Indoor unitoperates. Outdoorunit doesn’tOutdoor unitoperates inonly TestRunoperation.Outdoor unitdoesn’toperate evenin Test Runoperation.Check roomt

281. troubleshooting check tablew Before taking measures, make sure that the symptom reappears, for accurate troubleshooting.Self check table❈Those in

29Measure the resistance between the terminals with a tester.(Coil wiring temperature10°C ~ 30°C)CompressorRoom temperaturethermistor2. Trouble criter

3RESETCLOCKgSignal transmitting sectionOperation display sectionOPERATE/STOP(ON/OFF)buttonOPERATION SELECT buttonFAN SPEED CONTROL buttonON-TIMER butt

30Check of indoor fan motorACheck of remote controller and receiver P.C. boardBIndoor fan does not operate.Turn OFF the power supply.Check connector (

31Check of indoor electronic control P.C. boardCCheck of outdoor unitDCompressor and outdoor fan do not operate.StartPress the EMERGENCYOPERATION swit

32YesYesHow to check mis-wiring and serial signal error (when outdoor unit does not work)E1. Turn OFF the power supply.2. Turn ON the power supply.3.

33DE00R697BTo the indoorelectronic controlP.C.board CN113Indoor coil thermistor (RT12)Room temperature thermistor (RT11)RT11EMERGENCY OPERATION switch

34Outdoor fan motor 220-240V ACSolenoid coil220-240V ACR6015~10V DC+INPUT220-240V ACDefrost thermistor(RT61)Fuse 2A/250VDefrost intervaltime short pin

35DISASSEMBLY INSTRUCTIONS12OPERATING PROCEDURE PHOTOS1. Removing the electronic control P.C . board.(1) Pull out the upper part of the grill. (Photo

36OPERATING PROCEDURE PHOTOS3. Removing the indoor heat exchanger.(1) Remove the grill. (Refer to 1(1) (2))(2) Remove the screws on both side and in f

3712-2. MUCFH-13NV -OUTDOOR UNITE3OPERATING PROCEDURE PHOTOS1. Removing the cabinet(1) Remove the screws of the top panel.(2) Remove the screws of th

38OPERATING PROCEDURE PHOTOS3. Removing the propeller fan and the outdoor fanmotor(1) Remove the cabinet. (Refer to 1)(2) Remove the propeller fan nut

39PARTS LIST13MCFH-13NV - (WH)13-1. INDOOR UNITSTRUCTURAL PARTSE3Part number that is circled is not shown in the illustration.No.Part No.Part name Re

4ModelFunctionPower supplyCapacityDehumidificationAir flowPower outletRunning currentPower inputAuxiliary heaterPower factorStarting currentCompressor

40Part numbers that are circled are not shown in the illustration.13-3. INDOOR UNITELECTRICAL PARTS AND FUNCTIONAL PARTSMCFH-13NV - (WH)E3No. Part No.

41No. Part No.Part nameRemarksSymbolin WiringDiagramQ'ty/unitMUCFH-13NV- E31234567891011121314E02 336 232E02 336 297E02 336 521E02 336 24

42126354713-5. OUTDOOR UNITELECTRICAL PARTS AND FUNCTIONAL PARTS MUCFH-13NV -E3Part number that are circled are not shown in the illustration.No. Part

43OPTIONAL PARTS1414-1. REFRIGERANT PIPESThe air conditioner has flared connections its indoor and outdoor sides.Please use the optional extension pip

CCCopyright 1999 MITSUBISHI ELECTRIC ENGINEERING CO., LTD.Issued in Jun. 1999. No.OB240 268Printed in JapanNew publication, effective Jun. 1999.Specif

5NOISE CRITERIA CURVES4MCFH-13NV -E3MUCFH-13NV -E390807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUN

6(When installed on the floor)(When installed on the ceiling)50cm or more50cm or more50cm or more50cm or more100cm or more650616.580.8 906 112.8114161

7WIRING DIAGRAM6NOTE :1. Use copper conductors only.(For field wiring)2. Symbols below indicate./:Terminal block, : Connector3. “w” shows the

8REFRIGERANT SYSTEM DIAGRAM7IndoorheatexchangerOutdoorheatexchangerDistributorFlared connectionRoom temperaturethermistorRT11Coil temperaturethermisto

9PERFORMANCE CURVES8The standard data contained in these specifications apply only to the operation of the air conditioner under normal condition,sinc