Trane CVHE-SVU01E-ENX39640712050 External Chilled Water Setpoint Ecws, Module Characteristics

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Control System Components

External Chilled Water

Setpoint (ECWS)

The External Chilled Water Setpoint allows the chilled water setpoint to be changed from a remote location. The External Chilled Water Setpoint is found on 1A16 J2-5 to J2-6 (Ground). 2-10 vdc and 4-20 ma correspond to a 34°F to 65°F (-17.8 to 18.3°C) CWS range. Default 34°F to 65°F, adjustable via service tool.

External Current Limit Setpoint

The External Current Limit is an option that allows the current limit setpoint to be changed from a remote location. The External Limit Setpoint is found on 1A16 J2-2 to J2-3 (ground), 2-10 vdc and 4-20 ma each correspond to a 40 to 100 percent RLA range. UCP limits the maximum ECLS to 100 percent. Default 40 to 100%, adjustable via service tool.

Note: To use external inputs, the setpoint source setting on DynaView must be set to “Ext/FP.”

The ECWS or ECLS LLID will report either a very low or very high value when there is either an open or short in the system.

When an open or short is detected (or the signal is severely beyond the valid range) on the 2-10 VDC or 4- 20mA ECLS input and when the ECLS option is installed, an informational diagnostic shall be generated. The active current limit set point will default to the panel (or next priority) current limit set point. Open and short criteria will be set as close to the end of the range values as possible and still reliably detect an open and short.

WPSR (WFC Water Pressure Sensing Option)

1A21 Optional Dual

WPSR = WFC

Signal #1

Evaporator Differential

Not for field use

Analog Input or output

 

 

Water Pressure

 

Module

 

 

 

 

1A21 Optional Dual

WPSR = WFC

Signal #2

Condenser Differential

Not for field use

Analog Input or output

 

 

Water Pressure

 

Module

 

 

 

 

Module Characteristics

1A1, 1A2 Power Supply :

Unit Control Power Supply Module Converts 27 vac to 24 vdc.

Power Input Voltage: 23VRMS minimum, 27VRMS Nominal, 30VRMS maximum

Frequency: 50-60 Hz

Current: Full load 27 VAC – 4.30 A (RMS)

Inrush 27 VAC (RMS) ~ 30A (RMS)

Power Output: Class II Voltage 24 VDC, Rated Current 2.44 Amps. Fused @ 3 amps. (FUS01513)

1A3, 1A5, 1A10 Dual Relay Output modules :

Relay #1 J2-1 NO, J2-2 NC, J2-3 common

Relay #2 J2 4 NO, J2-5 NC, J2-6 common

Relay Outputs at 120 VAC: 7.2 Amps resistive, 2.88 Amps pilot duty, 1/3 HP, 7.2 FLA at 240 VAC: 5 Amps general purpose, 14 - 26 AWG with a maximum of two 14 AWG.

Power, 24 +/- 10 percent VDC, 60 mA maximum, Trane IPC3 protocol. J1-1 +24VDC, J1-2 Ground, J1-3 COMM + J1-4 COMM -

1A4, 1A6 Dual High Voltage Binary input module:

Binary Input Signal #1 J2-1 to 2

Binary Input Signal #2 J3-1 to 2

High Voltage Binary Input: Off

Voltage: 0 to 40 VAC RMS , On

Voltage: 70 to 276 VAC RMS

Input is not polarity sensitive (Hot and neutral can be switched), Input impedance 130K to 280K ohms

14 - 26 AWG with a maximum of two

14 AWG

Power, 24 +/- 10 percent VDC, 20 mA maximum. Trane IPC3 protocol. J1-1 +24VDC, J1-2 Ground, J1-3 COMM +, J1-4 COMM -

1A7 High Power Relay

Relay output contacts at 120 VAC:

16.0Amps resistive, 6.4 Amps pilot duty, 1 HP, 16.0 FLA

J2 14-26 AWG with a maximum of two 14 AWG J2-1 NO, J2-2 NO, J2-3 NC, J2-4 COM, J2-5 COM.

Power, 24 +/- 10% VDC, 60 mA max. Communications, RS485 Physical layer, 19.2 Kbaud, Trane IPC3 protocol.

J1: J1-1 +24 VDC, J1-2 GND, J1-3 COMM +, J1-4 COMM -

J11: J11-1 +24 VDC, J11-2 GND, J11-3 COMM +, J11-4 COMM -

CVHE-SVU01E-EN

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Contents Operation Maintenance Read these carefully Contents Unit Nameplate General InformationLiterature change About this manualC0000000K01G14C10W1A03B1 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 UnitsPurge Report Items Units Compressor Report Items UnitsMotor Report Items Units RPMPPM Historic Diagnostics LogAshrae Chiller Log Units RLAChilled Water Setpoint Chiller Feature SettingsMode Overrides Description Units Default Monitor ValuePurge Description Units DefaultDisplay Settings Operator Interface Operator Interface Operator Interface Operator Interface Operator Interface Binding Interprocessor CommunicationInter Processor Communications IPC3 IPC3 Definitions Bus ManagementControl System Components Control panel components layout and approximate dimensionsControl System Components Control Panel Devices Opst Machine Shutdown Manual Reset MMRHead Relief Request Output Compressor Running RelayExop Refrigerant Monitor Input 1A17Cdrp Condenser Refrigerant Pressure Output Frcl Free Cooling OptionHgbp Hot Gas Bypass Option Trmm TRM4 Tracer Comm 4 interfacePressure based Temperature basedCondenser Pressure Output Refrigerant Differential Pressure Indication Output Percent RLA Output Gbas Generic Building Automation SystemGbas Wpsr WFC Water Pressure Sensing Option Module CharacteristicsExternal Chilled Water Setpoint Ecws External Current Limit SetpointComm + 1A8, 1A9, 1A11, 1A12 Quad Relay Output Status1A13, 1A18, 1A19, 1A20 Dual Binary input module 1A14 Communication interface ModuleAnalog 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 CompensationClear Restart Inhibit Restart Inhibit Start to Start Time SettingRestart Inhibit Restart Inhibit Free StartsHigh Vacuum Lockout Oil Temperature Control Return Water Controls Chilled Water Reset CWROutdoor Air Temperature Maximum ResetEquation Values for start reset typesDegrees of Reset Constant ReturnOutdoor 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 Seasonal Unit Start-Up Before changeover to heating modeLive Electrical Components Toxic HazardsSeasonal Unit Shutdown Unit Shutdown ProceduresUnit Shutdown Oil Pump Heater OperationRecord Keeping Forms Periodic MaintenanceDaily Maintenance and Checks Moisture ContaminationEvery 3 Months Weekly MaintenanceNormal Chiller Operating Characteristics Hazardous Voltage w/ CapacitorsAnnual Maintenance Off-Season MaintenanceCompressor Oil Change on Oil MaintenanceOil Change Procedure Heater DamageReplacing Oil Filter Oil Filter ReplacementLubrication MaintenanceOil Supply System Problems Other Maintenance RequirementsFront View with Refrigerant Pump Do not Leave Grease Fittings InstalledRefrigerant Charge Contains RefrigerantProper Water Treatment Recovery and Recycle ConnectionsLeak Testing Cleaning the CondenserUnit 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.

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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.