Trane CVHE-SVU01E-ENX39640712050 manual Free Cooling Frcl

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General Information

it is then compressed and discharged to the condenser. Most of the condensed refrigerant initially follows the path of least resistance by flowing into the storage tank. This tank is vented to the economizer sump through a small bleed line; when the storage tank is full, liquid refrigerant must flow through the bleed line restriction. Because the pressure drop through the bleed line is greater than that of the orifice flow control device, the liquid refrigerant flows normally from the condenser through the orifice system and into the economizer.

Free Cooling FRCL

To enable Free Cooling Mode:

1.Free Cooling must first be installed and commissioned.

2.Enable the Free Cooling mode in the DynaView™ Settings Menu

3.Press “AUTO”, and if used, close the external binary input switch (connected to 1A20 J2- 1 to 2) while the chiller is in “AUTO”.

Free Cooling cannot be entered if the chiller is in “STOP”.

If the chiller is in “AUTO” and not running, the condenser water pump will start. After condenser water flow is proven, Relay Module 1A11 will energize operating the Free Cooling Valves 4B12 and 4B13. The Free Cooling Valves End Switches must open within 3 minutes, or an MMR diagnostic will be generated. Once the Free Cooling Valves End Switches open, the unit is in the Free Cooling mode. If the chiller is in “AUTO” and running powered cooling, the chiller will do a friendly shut down first, (Run: Unload, Post Lube, and drive vanes closed). After the vanes have been overdriven, closed and condenser water proven, the Free Cooling relays will be

energized. To disable Free Cooling and return to Powered Cooling, either disable the Free Cooling Mode in the DynaView™ settings menu if used to enable Free Cooling or “OPEN” the external binary input switch to the 1A20 Module if it was used to enable Free Cooling. Once Free Cooling is disabled, the Free Cooling relays Relay Module 1A11 will de-energize allowing the Free Cooling valves to close. The Free Cooling valves end switches must close within 3 minutes or an MMR diagnostic is generated. Once the end switches close the chiller will return to “AUTO” and powered cooling will resume if there is a call for cooling based on the differential to start.

Note: The manual control of the inlet guide vanes is disabled while in the Free Cooling Mode and the compressor is prevented from starting by the control logic.

Note: The relay at 1A11-J-2-4 to 6 is a FC auxiliary relay and can be used as required.

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CVHE-SVU01E-EN

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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 CondensersControl Panel Devices and Unit Mounted Devices Unit Control Panel UCPUnit 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 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 ChillerDisplay Settings Description Units DefaultPurge 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 OutputCondenser Pressure Output Temperature basedPressure based Refrigerant Differential Pressure Indication Output Gbas Gbas Generic Building Automation SystemPercent RLA Output 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 +1A15, 1A16, 1A17, 1A21 Dual Analog Input/output Module Recommended Length to Run external Output signalsAnalog Input Unit mounted devices Electrical Sequence Control Sequence of OperationUCP 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 RLACurrent Limit Protection Phase Loss ProtectionReverse Rotation Protection SoftLoading Differential to Start or StopMinimum 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 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 Unit Startup Unit Start-Up ProceduresDaily Unit Start-Up 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 TreatmentControl Settings Adjustments Cleaning the EvaporatorUnit Corrosion Damage 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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