Trane CVHE-SVU01E-ENX39640712050 manual Cvhf pressure enthalpy curve

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General

Information

Figure 5. CVHF pressure enthalpy curve

Figure 6. CVHF single stage economizer

12	CVHE-SVU01E-EN

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Contents Operation Maintenance Read these carefully Contents General Information Literature changeAbout this manual Unit NameplateCVHF091NAL00ACU2758W7E8TB C0000000K01G14C10W1A03B1Commonly Used Acronyms Control Optional PackagesOverview CvhfGeneral Information General Information Cooling Cycle Cvhf CompressorCVHE, Cvhg pressure enthalpy curve Cvhf pressure enthalpy curve TechView Chiller Service Tool DynaView Human InterfaceCVHE, CVHF, and Cvhg sequence of operation running General Information Surface Temperatures Oil and Refrigeration PumpOil refrigerant pump Base Loading Control Algorithm 20 100 percent RLAGeneral Information Ice Machine Control Free Cooling Cycle Free Cooling Frcl Hot Gas Bypass Hot Water control Heat Recovery Cycle Auxiliary CondensersUnit Control Panel UCP Control Panel Devices and Unit Mounted DevicesUnit Control Panel UCP Variable water flow through the evaporator User-defined language supportOperator Interface DynaView main processorOperator Interface Chiller Stop Prevention/Inhibit Feature How It WorksTop Level Mode Description System Reset MinsecReference Main Screen Diagnostic Screen Back button provides navigation back to the chiller screen Operator Interface Reports Evaporator Report items Units Condenser Report Items UnitsCompressor Report Items Units Motor Report Items UnitsRPM Purge Report Items UnitsHistoric Diagnostics Log Ashrae Chiller Log UnitsRLA PPMChilled Water Setpoint Feature Settings Mode OverridesDescription Units Default Monitor Value ChillerDescription Units Default Display SettingsPurge Operator Interface Operator Interface Operator Interface Operator Interface Operator Interface Interprocessor Communication Inter Processor Communications IPC3IPC3 Definitions Bus Management BindingControl panel components layout and approximate dimensions Control System ComponentsControl System Components Control Panel Devices Machine Shutdown Manual Reset MMR Head Relief Request OutputCompressor Running Relay OpstRefrigerant Monitor Input 1A17 ExopFrcl Free Cooling Option Hgbp Hot Gas Bypass OptionTrmm TRM4 Tracer Comm 4 interface Cdrp Condenser Refrigerant Pressure OutputTemperature based Condenser Pressure OutputPressure based Refrigerant Differential Pressure Indication Output Gbas Generic Building Automation System GbasPercent RLA Output Module Characteristics External Chilled Water Setpoint EcwsExternal Current Limit Setpoint Wpsr WFC Water Pressure Sensing Option1A8, 1A9, 1A11, 1A12 Quad Relay Output Status 1A13, 1A18, 1A19, 1A20 Dual Binary input module1A14 Communication interface Module Comm +Recommended Length to Run external Output signals 1A15, 1A16, 1A17, 1A21 Dual Analog Input/output ModuleAnalog Input Unit mounted devices Control Sequence of Operation Electrical SequenceUCP and Wye-Delta Starter Control Circuits Delay time 200 msec. Opens 2K1 Control Sequence of Operation Test and start timing sequence AFD Momentary Power Loss MPL Protection Machine Protection Adaptive ControlCurrent Overload Protection Overload trip time versus percent RLAPhase Loss Protection Current Limit ProtectionReverse Rotation Protection Differential to Start or Stop SoftLoadingMinimum and Maximum Capacity Limit Leaving Water Temperature Cutout Evaporator LimitLow Refrigerant Temperature Cutout Main Processor Software Revision 6.0 and higherCutout strategy Evaporator Variable Flow Compensation Condenser LimitRestart Inhibit Start to Start Time Setting Restart InhibitRestart Inhibit Free Starts Clear Restart InhibitHigh Vacuum Lockout Oil Temperature Control Controls Chilled Water Reset CWR Outdoor Air TemperatureMaximum Reset Return WaterValues for start reset types Degrees of ResetConstant Return EquationReset Ratio Outdoor air temperature versus degrees of resetReset function for return CWR Reset Ratio = 50% Return CWR Unit Start-Up Procedures Unit StartupDaily Unit Start-Up Before changeover to heating mode Live Electrical ComponentsToxic Hazards Seasonal Unit Start-UpUnit Shutdown Procedures Unit ShutdownOil Pump Heater Operation Seasonal Unit ShutdownPeriodic Maintenance Daily Maintenance and ChecksMoisture Contamination Record Keeping FormsWeekly Maintenance Normal Chiller Operating CharacteristicsHazardous Voltage w/ Capacitors Every 3 MonthsOff-Season Maintenance Annual MaintenanceOil Maintenance Oil Change ProcedureHeater Damage Compressor Oil Change onOil Filter Replacement Replacing Oil FilterMaintenance Oil Supply System ProblemsOther Maintenance Requirements LubricationDo not Leave Grease Fittings Installed Front View with Refrigerant PumpContains Refrigerant Refrigerant ChargeRecovery and Recycle Connections Leak TestingCleaning the Condenser Proper Water TreatmentCleaning the Evaporator Control Settings AdjustmentsUnit Corrosion Damage Purge System Unit PreparationHazardous Voltage w/ Capacitors 100 101 102 103 104 105 106 107 108 109 110 111 Trane