Trane CVHE-SVU01E-ENX39640712050 manual Unit mounted devices

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Control System Components

Unit mounted devices

Vane Actuator Control

The Stepper Module within the stepper vane actuator (4M2) (and 4M4 extended capacity) pulses a DC voltage to the windings of the Stepper Motor Actuator(s) to control inlet guide vane position. While operation of this stepper motor is automatic, manual control is possible by going to the Mode Overrides settings menu within the DynaView™. Compressor Control Signal allow the operator to manually increase or decrease the compressor load by adjusting the compressor control signal.

Note: If the chiller is operating in a limit mode (current limit, condenser limit, evaporator limit, etcetera.) The limit operation has priority over all DynaView™ manual modes of operation.

On each UCP power-up, the inlet guide vanes are driven full closed to recalibrate the zero position (Steps) of the Stepper motor vane actuator.

Temperature sensors,

Evaporator sensors 4R6 and 4R7, and condenser sensors 4R8, 4R9 entering and leaving, bearing temperature sensors 4R1, 4R2, oil temperature sensor 4R5, outdoor air temperature 4R13, and evaporator 4R10 and condenser 4R11 saturated refrigerant temperature sensors.

Probe Operating Temperature Range - 40 to 250°F (-40 to 121oC)

Accuracy +/- 0.25oC over the range -4 to 122°F (-20 to 50oC), +/- 0.50oC over the range -40 to 250°F (-40 to 121oC)

Power and Communications and Terminations Power 24 +/- 10% VDC, 20 mA maximum.

Trane IPC3 protocol Communications.

Pressure sensors

Oil tank sump 4R4 and oil pump discharge 4R3, evaporator and condenser refrigerant pressure 4R22, Working Pressure Range: 0 to 50 Psia Accuracy: ± 0.3% of full scale output at 68°F (20°C)

Power and Communications and Terminations

Power 24 +/- 10% VDC, 20 mA maximum.

Communications, RS485 Physical Layer, 19.2 Kbaud, Trane IPC3 protocol.

Starter Module

In the hierarchy of modules the Starter module 2A1 (1A23 when customer supplied starter specified) is second only to the DynaView™. The starter module is present in all starter selections (except AFD) .This includes Wye Delta, Across the Line, Solid State whether remote unit mounted or supplied by others. The starter module provides the logic to provide the motor protection for Current overload, phase reversal, phase loss, phase imbalance, and momentary power loss. These functions are discussed in the motor protection section of this manual.

Relay outputs @ 120 vac: 7.2 amps resistive 2.88 amps Pilot Duty 1/3 hp, 7.2 FLA.

Relay outputs @ 240 vac: 5 amps 6 general purpose.

EarthWise™ Purge

Trane has also revolutionized its controller-integrated purge, which features an automatic regeneration system for high-efficiency, maintenance-free refrigerant containment. Air and noncondensables are pumped out faster, and the lower temperature refrigeration system enhances the base purge efficiency. See EarthWise purge operation and maintenance manual for details.

Unit-mounted medium - voltage starter

Take advantage of Tracer CH530’s new starter and save space in your equipment room. There is no need for a remote or floor-mounted starter with our new, exclusive unit- mounted medium - voltage starter from Cutler-Hammer.

Adaptive Frequency™ motor drive Tracer CH530 complements Trane’s Adaptive Frequency motor drive (AFD) system for chillers better than ever before. Brand new control logic allows safe, more efficient inlet vane and motor speed control operation to maximize part-load performance and, when necessary, limit the starting current.

When equipped with the Trane Adjustable Frequency Drive (AFD) the Unit Control Panels DynaView™ also provides the Operator interface to the AFD control. The Service Tool, TechView™ is also utilized for setting service items. See the Adjustable Frequency drive operation maintenance manual that ships with the chiller for details .

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Contents Operation Maintenance Read these carefully Contents About this manual General InformationLiterature change 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 Unit Control Panel UCPControl Panel Devices and Unit Mounted Devices 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 UnitsRPM Compressor Report Items UnitsMotor Report Items Units Purge Report Items UnitsRLA Historic Diagnostics LogAshrae Chiller Log Units PPMChilled Water Setpoint Description Units Default Monitor Value Feature SettingsMode Overrides ChillerPurge Description Units DefaultDisplay Settings Operator Interface Operator Interface Operator Interface Operator Interface Operator Interface IPC3 Definitions Bus Management Interprocessor CommunicationInter Processor Communications IPC3 BindingControl panel components layout and approximate dimensions Control System ComponentsControl System Components Control Panel Devices Compressor Running Relay Machine Shutdown Manual Reset MMRHead Relief Request Output OpstRefrigerant Monitor Input 1A17 ExopTrmm TRM4 Tracer Comm 4 interface Frcl Free Cooling OptionHgbp Hot Gas Bypass Option Cdrp Condenser Refrigerant Pressure OutputPressure based Temperature basedCondenser Pressure Output Refrigerant Differential Pressure Indication Output Percent RLA Output Gbas Generic Building Automation SystemGbas External Current Limit Setpoint Module CharacteristicsExternal Chilled Water Setpoint Ecws Wpsr WFC Water Pressure Sensing Option1A14 Communication interface Module 1A8, 1A9, 1A11, 1A12 Quad Relay Output Status1A13, 1A18, 1A19, 1A20 Dual Binary input module Comm +Analog Input Recommended Length to Run external Output signals1A15, 1A16, 1A17, 1A21 Dual Analog Input/output Module Unit mounted devices UCP and Wye-Delta Starter Control Circuits Control Sequence of OperationElectrical Sequence 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 RLAReverse Rotation Protection Phase Loss ProtectionCurrent Limit Protection Minimum and Maximum Capacity Limit Differential to Start or StopSoftLoading 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 Free Starts Restart Inhibit Start to Start Time SettingRestart Inhibit Clear Restart InhibitHigh Vacuum Lockout Oil Temperature Control Maximum Reset Controls Chilled Water Reset CWROutdoor Air Temperature Return WaterConstant Return Values for start reset typesDegrees of Reset EquationReset Ratio Outdoor air temperature versus degrees of resetReset function for return CWR Reset Ratio = 50% Return CWR Daily Unit Start-Up Unit Start-Up ProceduresUnit Startup Toxic Hazards Before changeover to heating modeLive Electrical Components Seasonal Unit Start-UpOil Pump Heater Operation Unit Shutdown ProceduresUnit Shutdown Seasonal Unit ShutdownMoisture Contamination Periodic MaintenanceDaily Maintenance and Checks Record Keeping FormsHazardous Voltage w/ Capacitors Weekly MaintenanceNormal Chiller Operating Characteristics Every 3 MonthsOff-Season Maintenance Annual MaintenanceHeater Damage Oil MaintenanceOil Change Procedure Compressor Oil Change onOil Filter Replacement Replacing Oil FilterOther Maintenance Requirements MaintenanceOil Supply System Problems LubricationDo not Leave Grease Fittings Installed Front View with Refrigerant PumpContains Refrigerant Refrigerant ChargeCleaning the Condenser Recovery and Recycle ConnectionsLeak Testing Proper Water TreatmentUnit Corrosion Damage Cleaning the EvaporatorControl Settings Adjustments Purge System Unit PreparationHazardous Voltage w/ Capacitors 100 101 102 103 104 105 106 107 108 109 110 111 Trane

CVHE-SVU01E-ENX39640712050 specifications

The Trane CVHE-SVU01E-ENX39640712050 is a high-efficiency centrifugal chiller designed for commercial and industrial applications. This state-of-the-art unit is engineered to provide reliable cooling performance, energy efficiency, and optimized operational flexibility. It is particularly suitable for large-scale facilities that require significant cooling capacity and robust performance under varying load conditions.

One of the most notable features of the CVHE-SVU01E series is its advanced variable speed drive technology. This technology enables the chiller to adjust its speed according to the cooling demands of the facility, resulting in substantial energy savings. By operating at optimal speeds, this unit reduces power consumption and enhances overall efficiency. This is noteworthy in the context of rising energy costs and increasing sustainability demands across various industries.

Moreover, the CVHE-SVU01E is equipped with Trane’s proprietary Compliant Scroll compressor technology. This innovative compressor design minimizes mechanical losses and increases the efficiency of the chiller system. Additionally, the compressor is specifically designed to handle varying refrigerant flow rates, allowing the chiller to maintain performance even when faced with fluctuating conditions.

Another significant characteristic of this chiller model is its use of environmentally friendly refrigerants, aligning with global regulations aimed at reducing greenhouse gas emissions. This commitment to sustainability ensures that the CVHE-SVU01E not only provides excellent cooling performance but also adheres to contemporary environmental standards.

The unit utilizes an advanced control system that simplifies operation and enhances troubleshooting capabilities. The intuitive interface allows facility managers to monitor performance metrics, optimize operation schedules, and conduct remote diagnostics, significantly reducing costly downtime and maintenance efforts.

Furthermore, the compact and modular design of the CVHE-SVU01E makes it easy to install in various settings. Its durability is ensured through the use of high-quality materials and components, designed to withstand the rigors of demanding environments. With reduced maintenance requirements, facility operators can focus on core business functions without frequent interruptions.

In summary, the Trane CVHE-SVU01E-ENX39640712050 combines cutting-edge technologies and features to deliver exceptional performance, efficiency, and reliability in commercial cooling applications. Its advanced design contributes to reduced energy costs, minimal environmental impact, and greater operational flexibility, making it an excellent choice for organizations seeking sustainable and efficient cooling solutions.
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