多联机维修与应用

36820121671-6612201204-368-05MentePCTU831.3+7ATheApplicationandAnalysisofVRFMaintenanceSoftwareHuangMinYanWeidongMaQian(JiangsuInstituteofEconomic&TradeTechnology,CollegeofEngineering,Nanjing,210007)AbstractThisarticleintroducestheprincipleofautomaticcontrolfortheMHIVRFairconditionerandexpoundstheprimaryfunctionofMHIMentePCsoftwarefromthemaintenancetechnique.Throughtheanalysisofactualcase,thetroublesourceofVRFisgiven.Thecorrespondingsolutionandmaintenancetechniqueisgivenintheend.KeywordsVRF;operationalcontrol;protectedcontrol;[e-mail]2011-09-28KX6MentePCKX61212Fig.1SystemdiagramoftheoutdoormachineFig.2Systemdiagramoftheindoormachine26420128RefrigerationandAirConditioningVol.26No.4Aug.2012.368372264369THthermistorEEVElectricExpansionValveSVSolenoidValvePSLPressureSensor,LowPSHPressureSensor,HighiindoorooutdoorAAirDDischargeSsuctionSCsubcoolHheatCcrankcaseRrefrigerationKX62.1PSL=0.7MPaTHiR1THiR2THiR3EEVTHiR3THR2THiR1=3THoSPSLSSTEEVSCTHoSSST=102.2PSH=2.75MPaTHiR2EEVTHiR2=40THiR3THiR4PSLSSTEEVHTHoR3THoR4SST=582.3THoD115SV1120130THoC35SV680SV185PSH2.2MPaPSH3.7MPaPSH4.15MPaPSH2.75MPaPSH3.0MPaPSH3.3MPaPSH3.5MPaSV6PSH4.15MPa63HPSL0.7MPaPSL0.18MPaPSL0.134MPaPSL0.8MPaPSL0.18MPaPSL0.134MPaMentePCMentePCMentePC12303EERPROM4MentePC3.1116KX43EERPROM2.44MPa63H14.15MPa3.226KX6E364337020123Fig.3Thefaultdetectiondata4Fig.4Real-timedataoftheoutdoormachineEEV544EEV44THiR1THiR2THiR3THiA46PSL45Fig.5Thereal-timedataofEEVandTHi6Fig.6Thereal-timedataofPSL,PSHandTHo-D3.336KX671THiATHiR3THiR2THiR1=32643717Fig.7Thereal-timedataofEEVandTHi80.7MPa8Fig.8Thereal-timedataofPSL,PSHandINV932THoA44CSEEVHEEVSCCS109Fig.9Thereal-timedataofTHoandCS10Fig.10Thereal-timedataofEEVHandCT11Fig.11Thereal-timedataofTHoandTHoSC3722012THoR1THoSC11THoR1THoSCTHoSCEEVSC123MentePC[1].KX4KX6[M].2010.[2].KX6[M].2010.[3],,.R22R410A[J].,2009,23(4):114118.[4].[D].:,2010[5],,.[J].,2010,(10):4347.[6].VRV[J].,2011,(8):148,141[7],,,VRV[J].,2008,8(6):7982.[8].[J].,2011,39(7):1921.