Mitsubishi Electric PKH30 Manuel de service

TECHNICAL & SERVICE MANUALSPLIT-TYPE, HEAT PUMP AIR CONDITIONERSCONTENTS1. FEATURES ······························································

10Data is based on the condition under indoor humidity 50%.Air flow should be set at HI.A point on the curve shows the reference point.Data is based o

11Data is based on the condition under indoor humidity 50%.Air flow should be set at HI.A point on the curve shows the reference point.Data is based o

12Data is based on the condition under indoor humidity 50%.Air flow should be set at HI.A point on the curve shows the reference point.Data is based o

134. STANDARD OPERATION DATAModelsItemElectrical circuitRefrigerant circuitIndoor sideOutdoor sideVoltageFrequencyTotal inputIndoor fan current Booste

14ConditionStandard temperatureMaximum temperatureMinimum temperatureMaximum humidityStandard temperatureMaximum temperatureMinimum temperature8095678

156. NOISE CRITERION CURVES90807060504030201063 125 250 500 1000 2000 4000 8000APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISENC-60NC-50NC-40NC-30NC

165OUTLINES AND DIMENSIONS9-1/41-25/329-1/41-25/329-1/4 9-1/41-25/321/213-3/87-3/41-21/322-9/32TopFrontRight sideLeft side55-1/842-15/16 Air intake9-1

1766-5/329-1/453-15/16 Air IntakeFrontKnock out holeRight side9-1/47-3/4Cfor right pipingBAABC4-1/32Liquid pipe 1/2FGas pipeSleeve >< 1><

18Remote controllerPipe temperaturethermistor / Liquid(RT2)DistributorRestrictorvalveCapillary tubePKH18FL : ({0.126x{0.071x19.7)PKH24FL : ({0.157x{0.

19WIRING DIAGRAM7MODELS PKH18FL, PKH24FL, PKH30FL, PKH36FLWIRING DIAGRAMGRL1L2POWER SUPPLY~(1PHASE)AC208/230V 60HzGROUND3LED(HOT ADJUST)LED(RUN INDIC

21FEATURESIndoor unitRemote controllerModels Cooling capacity / Heating capacity SEERPKH18FL 18,000 / 18,600 [25,100] Btu/h 11.1PKH24FL 24,000 / 25,0

208 OPERATION FLOW-CHARTSTARTPower circuitbreakerCheck SWON twiceOperation SWON“OFF” timer“ON” timerSTOPSet timecompleteSet timecomplete1NONONONONONON

21COOL operationFour-way valve/OFFInitialCOOLINGNONONONONOYESYESYESYESYESYESNOYESYESYESYESYESYESYESYESYESYESYESNONONONOYESNONONONONONONONONOw 8w 9Vane

22w8—9 Refer to page OC276-21.w12 When room temperature is 64°F or below, the compressor cannot operate.When room temperature rises over 64°F the comp

23Heat operationinitialHEATINGVane setting notchVane initial settingdefrostingHeating areaDefrost releaseDefrost30 min. elapseOutdoor unit troubleFour

249 MICROPROCESSOR CONTROL● Compressor andoutdoor fan : ON-OFF● Operation modechange :COOL-HEAT.1.OUTLINE OF MICROPROCESSOR CONTROL● OFF-ON switching.

252. INDOOR UNIT CONTROL2-1 COOL operation<How to operate>1 Press POWER ON/OFF button.2 Press the MODE button to display COOL.3 Press the TEMP(

26(1) Compressor control1 3-minute time delayTo prevent overload, the compressor will not start within 3 minutes after stop. 2 The compressor runs whe

(3) Auto vane controlAuto vane position is set to 10 degrees airflow at the start-up of COOL operation. It can then be changed by the remotecontroller

28(4) Detecting abnormalities in the outdoor unitAfter the compressor has been continuously operated for 3 minutes, if the difference between the indo

29<DRY operation time chart>Minimum 3 minutes w1ONThermostatIndoor fanAuto vaneBooster heaterCompressorONDRY MODEDRY MODEONONOFFOFFONOFFOFFOFFOF

3PART NAMES AND FUNCTIONS2●Wireless remote controller● When cover is open.ON/OFF TEMPFANVANETEST RUNAUTO STOPAUTO STARThminLOUVERMODECHECKRESETSET C

301) Compressor control1 3-minute time delayTo prevent overload, the compressor will not start within 3 minutes after stop. 2 The compressor runs when

312-3 HEAT operationMinimum 3 minutes w2ONThermostatIndoor fanAuto vaneBooster heaterCompressorPower ON lampSTAND BY lampONONLOW or HIGHLOW or HI

32(1) Compressor control13-minute time delayTo prevent overload, the compressor will not start within 3 minutes after stop.2The compressor runs when t

33(5) Detecting abnormalities in the outdoor unitWhen the outdoor unit is determined to be abnormal by the following causes, the compressor will stop

342-4 AUTO operation (Automatic COOL/HEAT change over operation)(1) Initial mode1 When AUTO operation starts after unit OFF.● If the room temperature

35<How to operate>To change the air flow direction, press VANE ( ) button.(1) COOL/DRY operationAt the start-up of COOL or DRY operation,

362-6 TIMER operation2-7 Test run<Timer function>AUTO STOP ·········The air conditioner stops after the set time lapses.AUTO START ········The a

37(1) Indoor coil temperature codeDuring the test run, the indoor coil temperature code from 1 to 15 is displayed on the remote controller instead of

382-9 Dip switch and jumper connector functions.Each figure shows the initial factory setting.2-9-1 On remote controller board(1). On indoor controlle

392-10 INDOOR FAN CONTROLIndoor fan relay output.(a) During fan ONThe indoor fan relay turns ON. One second later, the phase control will start.(b) Du

43 SPECIFICATIONSFK1:48 -41CapacityMoisture removalPowerConsumptionEERSEERHSPFCOPINDOOR UNIT MODELSExternal finishPower supplyMax.fuse size (time dela

402-11 Wireless remote controller pair number setting operationON/OFFTEMPFANVANEMODECHECKLOUVERTEST RUN AUTO STOP AUTO STARThminRESETSETCLOCKMO

41TROUBLESHOOTING101. Self-diagnostic functionSelf-check1 Turn on the main power to the unit.2 Press the button twice continuously.(Start this

42CheckcodeDiagnosis of malfunction Cause Check points4Abnormality of drain sensor 1) Bad contact of transmissionwire2) Damaged thermistor1) Check the

433. WRONG WIRING ON SITE3-1 Between remote controller and indoor unitIf the wire is disconnected between the remote controller and the indoor unit, n

444. HOW TO CHECK THE PARTSRoom temperaturethermistor (RT1)Pipe temperaturethermistor (RT2)Fan motor (MF)Disconnect the connector, then

45DISASSEMBLY PROCEDURE11OPERATING PROCEDURE PHOTOS&ILLUSTRATIONMetal fixtureScrews1. Removing the lower side of the indoor unit from the instal-l

46OPERATING PROCEDURE PHOTOS&ILLUSTRATION(8) Remove the screws of the indoor controller board case,and pull out the indoor controller board case.

47OPERATING PROCEDURE PHOTOS8. Removing the line flow fan and the fan motor(1) Remove the left and right side panels. (2) Remove the grilles. (3) Remo

4812 PARTS LISTNo.Parts No. Parts Name SpecificationsRemarks(Drawing No.)WiringDiagramSymbolQ'ty / setPKHFL FLFL12345SLEEVE BEARINGBEARING MOUNTL

49No.Parts No. Parts Name SpecificationsRemarks(Drawing No.)WiringDiagramSymbolQ'ty / setPKH6789101112131415161718192021222324252627282930313233D

5DATA4ModelsModels Outdoor intake air DB temperature(˚F)PKH18FL71676362.5605971676362.5605971676362.5605971676362.56059TC21.019.518.218.117.216.827.92

50No.Parts No. Parts Name SpecificationsRemarks(Drawing No.)WiringDiagramSymbolQ'ty / setPKHFLPart number that is circled is not shown in the fig

OC276-A-2.qxp 03.11.25 9:07 AM Page 51

TMcCopyright 2001 MITSUBISHI ELECTRIC ENGINEERING CO., LTD.Distributed in Nov. 2003 No.OC276 REVISED EDITON-A PDF 9Distributed in Dec. 2001 No.OC276.N

3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024 Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904 www.mrslim.com Specifications ar

6ModelsModels Outdoor intake air WB temperature(˚F)PKH18FL757065757065757065757065CA12.112.412.716.316.617.021.521.922.524.725.325.9PC1.201.161.111.82

7SHF=0.71Does not include booster heater (1.9kW)Total power consumption (kW) Total capacity (x103 Btu/h)30352418123.02.52.01.515 25 35 45 55 65Total

8NOTES : A point on the curve shows the reference point.COOLING CAPACITY HEATING CAPACITYCOOLING CAPACITY HEATING CAPACITY716763716763423630244.03.53.

93. CONDENSING PRESSURE AND SUCTION PRESSUREData is based on the condition under indoor humidity 50%.Air flow should be set at HI.A point on the curve