约克螺杆机组YEWS操作维护手册

Supersedes:NoYEWS-DScrewLiquidChillerInstallation,OperationandMaintenanceManualYEWS100SA50D/YEWS170SA50D/YEWS210SA50DSTYLEDWarningRefrigerantwithcertainpressureisinfusedintothissystemItispossibletodamagethesystemseverelyifbewiththeincorrectoperatingprocedurewheninmaintaining.AllthemaintenancesshouldbeperformedbythemaintenancetechnicianofYORKinaccordancewiththeInstallation,OperationandMaintenanceManualofYORK.FormNo:AP1105-IOM01(0407)IMPORTANT!Pleasereadcarefullybeforeproceeding!GeneralSafetyGuidelinesThisequipmentiscomplex,whenperformingtheinstallation,operationandmaintenance,thepersonnelmaybeexposedtothefollowingcircumstancesordangerscausedbycomponents,includingbutnotlimitedto:refrigerants,engineoil,compressivematerial,rotationpartandhigh-lowvoltage,whichwillresultinpersonalinjuryorevencasualtyifinimproperhandling.Theoperation/maintenancepersonnelhavetheresponsibilitytoconfirmthesepotentialdangerstoprotecthimfromtheinjurywhileworksafely.Ifthesesafetyrequirementsarenotfollowed,servedamagesontheequipmentandpropertywillbecaused,orevencasualtyonthepersonnelconcerned.Thismanualisjustfortheauthorizedoperation/maintenancepersonnel,whomareprofessionallytrainedtohandletheappointedworksafelyandcorrectly.Mostimportantofall,pleasecarefullyreadandmasterthismanualandotherreferencesbeforeanyoperationonthisequipment.Theoperatorisrequiredtobefamiliarwithandfollowanyrelevantgovernmentstandardsandcriterion.Yorkinheritsthestrategyofupdatingtheproductcontinuously,sothattheinformationinthisdocumentcanbecorrespondinglyupdatedwithoutpriornotice.Yorkisinnopromisetoprovidethelatestinformationtoalltheownersofthismanual;however,theusercanacquiretheseinformationfromthenearestrepresentativeofficeofengineeringsystemserviceofYork.Itistheobligationofoperation/maintenancepersonneltodeterminetheapplicabilityofthecorrespondingequipment.Ifanyquestionbeforeoperation,theywillcontactthecustomertoconfirmwhethertheequipmenthavebeenupdatedandwhetherthereisthelatestavailabledocumentornot.VariabilityofthisDocumentNomenclatureYEWS100SDA50StylePowersupplyRefrigerantA-R134aS-Standardunit100-UnitmodelWatercooledscrewchillerHighefficiencyYORKYEWS-DWaterCoolingScrewChillerSection1SupplierInformationSection2ProductIntroductionSection3Transportation,TransferringandStorageSection4InstallationSection5ControlCenterSection6StartupCommissioningSection7OperationSection8MaintenanceSection9TroubleShootingSection10TechnicalDataSection11SparePartsSection12TransferringStop,RemovalandHandlingSection13InstallationInstructionsfortheHF68FlowSwitchesTableofContents14911174244853556162634YEWS-DWaterCoolingScrewChiller1.1IntroductionYorkYEWS-Dwaterchillercomplieswiththemostrigorousdesignandmanufacturestandards,whichensuresthehigh-quality,reliabilityandflexibilityofvariousair-conditionproject.Thisunitcanbeusedforsupplyingthechilledwater,however,beunsuitableforotherapplicationsbeyondthismanual.Thismanualcontainsallthenecessaryinformationofoperationandmaintenanceguideforcorrectinstallationandtesting.Pleasereadthismanualcarefullybeforeoperatingandoverhaulingtheunit.Alltheworkelaboratedinthismanual(includinginstallation,testingandmaintenance)shouldbeperformedbythetrainedprofessionalpersonnel.Themanufacturershouldnotburdenanyresponsibilityofinjuryordamageduetoimproperinstallation,testing,operationorimpropermaintenance,ordisobeyingtheprocessandguidanceinthismanual.1.2WarrantyOneyearuponthedateofstartupandcommissioning,or18monthsuponthedateofshipment(subjecttothepriorarrival),Yorkguaranteestoremedythedefectofthemanufacturingprocessandmaterialofalltheequipmentandparts,exceptedastheguaranteeperiodisextendedintheContract.Thewarrantyislimitedtoalterandtransportanyfaultypartsorcomponents,ifthispartisunavailableduetoqualityormanufactureproblem,thecompensationmustbesupportedbytheevidence,namelythefaultoccursintheguaranteeperiodandtheunitisruninthespecifiedparameters.Section1SupplierInformationAllthecompensationforthewarrantymustshowtheunitmodel,seriesno.andorderno.,allofwhichareprintedonthetabletoftheunit.BeforegettingthewrittenconsentofYORKInternationalInc.,anyalterationontheunitshallbeprohibited,orthewarrantyshouldbeinvalid.Thefollowingclausesshouldbeobeyedtocomplywiththeproductwarranty:thecommissioningofstartupshouldbeperformedbytheauthorizedpersonnelofYork.Onlytheparts,lubricantandrefrigerantrecognizedbyYorkcanbeadopted.Intheregulatedtime,alltheoperationandmaintenancerequiredinthismanualshouldbecompletedbytheeligibletrainedpersonnel.Thewarrantyshouldlostefficacyautomaticallyfordisobeyinganyabove-mentionedclause.1.3SafetyThesafetystandardsofYEWS-Dwater-chillingunitdesignedandmanufacturedbythefactorypassedtheattestationofISO9000,whichmeetthelimitationregulatedinthismanualandcomplywiththefollowingstandards:JB8654SafetyRequirementsofPositiveDisplacementandCentrifugalWater-chilling(HeatPump)Packages.1.4SafetyLiabilityWetakethesafetyliabilityintoaccountindesigningandmanufacturingtheunittoensurethatitcanmeetthesafetyrequirements.However,thefollowingsmustbeplacedinthefirstinoperatinganyequipment