Trane CVHE-SVU01E-ENX39640712050 manual Head Relief Request Output, Compressor Running Relay, Opst

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Control System Components

Chilled and Condenser Water Flow Interlock Circuits

Proof of chilled water flow for the evaporator is made by the closure of flow switch 5S1 and the closure of

auxiliary contacts 5K1 on terminals 1X1-5 and 1A6-J3-2. Proof of condenser water flow for the condenser is made by the closure of

flow switch 5S2 and the closure of auxiliary contacts 5K2 on terminals 1X1-6 and 1A6-J2-2.

OPST Operation Status Option

Relay output modules 1A8 and 1A9 provide relay outs as shown:

1A8 Optional Quad Relay

OPST

Relay #1

Compressor running relay,

J2-10 NO, J2-11 NC,

Output Status

 

 

 

J2-12 common

1A8 Optional Quad Relay

OPST

Relay #2

MMR Alarm Relay,

J2-7 NO, J2-8 NC,

Output Status

 

 

(Latching)

J2-9 common

1A8 Optional Quad Relay

OPST

Relay #3

Limit Warning Relay,

J2-4 NO, J2-5 NC,

Output Status

 

 

 

J2-6 common

1A8 Optional Quad Relay

OPST

Relay #4

MAR Alarm Relay

J2-1 NO, J2-2 NC,

Output Status

 

 

(Non-Latching)

J2-3 common

1A9 Optional Quad Relay

OPST

Relay #2

Purge Alarm Relay

J2-7 NO, J2-8 NC,

Output Status

 

 

 

J2-9 common

1A9 Optional Quad Relay

OPST

Relay #3

Head Relief Request Relay

J2-4 NO, J2-5 NC

Output Status

 

 

 

to J2-6 common

1A9 Optional Quad Relay

OPST

Relay #4

Maximum Capacity Relay

J2-1 NO, J2-2 NC,

Output Status

 

 

 

to J2-3 common

Head Relief Request Output

When the chiller is running in Condenser Limit Mode or in Surge Mode, the head relief request relay (1 minute default) on the 1A9–J2-6 to J2-4 will be energized and can be used to control or signal for a reduction in the entering condenser water temperature. Designed to prevent high refrigerant pressure trip- outs during critical periods of chiller operation.

If the unit is not equipped with the CDPR Enhanced Condenser Limit Option the unit will use the condenser refrigerant temperature sensor (input converted to saturated refrigerant pressure) to perform the Standard Condenser Limit function,

without the head relief request relay, by limiting inlet guide vane stroke and chiller capacity.

Keep in mind that Condenser Limit Control supplements the protection provided by the condenser pressure high pressure cutout switch 3S1.

Compressor Motor Winding Temp Sensor Module

The motor temperature module 1A26 connects via unit wiring to the three motor winding temperature sensors.

Maximum Capacity Relay (TechView adjustable)

When the chiller has been operating at maximum capacity for 10 minutes (TechView adjustable 1 to 60 min.) this relay will activate. Also upon being less than maximum capacity for 10 minutes this relay will deactivate.

Compressor Running Relay

Relay activates while compressor is running.

Machine Shutdown Manual Reset (MMR)

Limit warning machine shutdown auto reset relays will activate with such conditions for remote status indication.

CVHE-SVU01E-EN

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Contents Operation Maintenance Read these carefully Contents Literature change General InformationAbout this manual Unit NameplateC0000000K01G14C10W1A03B1 CVHF091NAL00ACU2758W7E8TBControl Optional Packages Commonly Used AcronymsCvhf OverviewGeneral Information General Information Cvhf Compressor Cooling CycleCVHE, Cvhg pressure enthalpy curve Cvhf pressure enthalpy curve DynaView Human Interface TechView Chiller Service ToolCVHE, CVHF, and Cvhg sequence of operation running General Information Oil and Refrigeration Pump Surface TemperaturesOil refrigerant pump 20 100 percent RLA Base Loading Control AlgorithmGeneral Information Ice Machine Control Free Cooling Cycle Free Cooling Frcl Hot Gas Bypass Hot Water control Auxiliary Condensers Heat Recovery CycleUnit Control Panel UCP Unit Control Panel UCPControl Panel Devices and Unit Mounted Devices User-defined language support Variable water flow through the evaporatorDynaView main processor Operator InterfaceOperator Interface How It Works Chiller Stop Prevention/Inhibit FeatureTop Level Mode Description Minsec System ResetReference Main Screen Diagnostic Screen Back button provides navigation back to the chiller screen Operator Interface Condenser Report Items Units Reports Evaporator Report items UnitsMotor Report Items Units Compressor Report Items UnitsRPM Purge Report Items UnitsAshrae Chiller Log Units Historic Diagnostics LogRLA PPMChilled Water Setpoint Mode Overrides Feature SettingsDescription Units Default Monitor Value ChillerPurge Description Units DefaultDisplay Settings Operator Interface Operator Interface Operator Interface Operator Interface Operator Interface Inter Processor Communications IPC3 Interprocessor CommunicationIPC3 Definitions Bus Management BindingControl System Components Control panel components layout and approximate dimensionsControl System Components Control Panel Devices Head Relief Request Output Machine Shutdown Manual Reset MMRCompressor Running Relay OpstExop Refrigerant Monitor Input 1A17Hgbp Hot Gas Bypass Option Frcl Free Cooling OptionTrmm TRM4 Tracer Comm 4 interface Cdrp Condenser Refrigerant Pressure OutputPressure based Temperature basedCondenser Pressure Output Refrigerant Differential Pressure Indication Output Percent RLA Output Gbas Generic Building Automation SystemGbas External Chilled Water Setpoint Ecws Module CharacteristicsExternal Current Limit Setpoint Wpsr WFC Water Pressure Sensing Option1A13, 1A18, 1A19, 1A20 Dual Binary input module 1A8, 1A9, 1A11, 1A12 Quad Relay Output Status1A14 Communication interface 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 Machine Protection Adaptive Control Momentary Power Loss MPL ProtectionOverload trip time versus percent RLA Current Overload ProtectionReverse Rotation Protection Phase Loss ProtectionCurrent Limit Protection Minimum and Maximum Capacity Limit Differential to Start or StopSoftLoading Evaporator Limit Leaving Water Temperature CutoutMain Processor Software Revision 6.0 and higher Low Refrigerant Temperature CutoutCutout strategy Condenser Limit Evaporator Variable Flow CompensationRestart Inhibit Restart Inhibit Start to Start Time SettingRestart Inhibit Free Starts Clear Restart InhibitHigh Vacuum Lockout Oil Temperature Control Outdoor Air Temperature Controls Chilled Water Reset CWRMaximum Reset Return WaterDegrees of Reset Values for start reset typesConstant Return EquationOutdoor air temperature versus degrees of reset Reset RatioReset function for return CWR Reset Ratio = 50% Return CWR Daily Unit Start-Up Unit Start-Up ProceduresUnit Startup Live Electrical Components Before changeover to heating modeToxic Hazards Seasonal Unit Start-UpUnit Shutdown Unit Shutdown ProceduresOil Pump Heater Operation Seasonal Unit ShutdownDaily Maintenance and Checks Periodic MaintenanceMoisture Contamination Record Keeping FormsNormal Chiller Operating Characteristics Weekly MaintenanceHazardous Voltage w/ Capacitors Every 3 MonthsAnnual Maintenance Off-Season MaintenanceOil Change Procedure Oil MaintenanceHeater Damage Compressor Oil Change onReplacing Oil Filter Oil Filter ReplacementOil Supply System Problems MaintenanceOther Maintenance Requirements LubricationFront View with Refrigerant Pump Do not Leave Grease Fittings InstalledRefrigerant Charge Contains RefrigerantLeak Testing Recovery and Recycle ConnectionsCleaning the Condenser Proper Water TreatmentUnit Corrosion Damage Cleaning the EvaporatorControl Settings Adjustments Unit Preparation Purge SystemHazardous 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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