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Trane ZN.520 Standard End Devices, End Device Specifications Device, Characteristic, Description

Models: Tracer Unit Ventilator ZN.520

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Standard End Devices

Table 2: End Device Specifications

Device

Fan Status Switch

Low Temperature Detection Switch (Freezestat)

OutsideAir Sensor/discharge AirSensor/Entering

Water Temperature Sensor/Unit Mounted, Zone

Return-air Temperature Sensor

Characteristic

Material

Operating Temperature Range Contact Form

Preset

Trip Temperature:

Release Temperature

Rating—Auto Reset

Sensing Element

Description

Contact Blade—Pilot duty rated

-40°F/250°F (-40°C/120°C)

SPST-NO

Fan status - 0.07”

36°F ± 2°F (2°C + - 1.11°C)

44°F ± 3°F (6.67°C + - 1.67°C)

Pilot Duty	120	VAC	240	VAC
(24 VAC)	120	VAC	240	VAC
(24 VAC)
FLA	10.0		5.0
LRA	60.0		30.0

Thermistor 10 KOhms @ 77°F ± 1.8°F (25°C ±1°C)

UV-SVP01A-EN

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Trane ZN.520, Tracer Unit Ventilator Standard End Devices, End Device Specifications Device, Characteristic, Description

Contents

UV-SVP01A-EN Tracer ZN.520 for Classroom Unit VentilatorInstallation Owner Diagnostics Start-up Procedures Installation of New UnitsStart-up Procedures Power Up SequenceNote Manual output test can be initiated at any time General Information Tracer ZN.520 OverviewAdjust Table 1 Tracer ZN.520 Unit Controller features and coil availabilityTemperature General InformationService Button and LED Controller Circuit Board FeaturesPower Generic Auto Test Button Status LED Communications LED CommunicationsTypical Components Controller FeaturesService Test” on page 48, for more infor- mationPeer-to-Peer Communications Communication Configurationsservice tool. See “Configuration” Integrated Comfort SystemStand-Alone Communication ConfigurationsService tool Communication InterfaceCharacteristic Standard End DevicesTable 2 End Device Specifications Device DescriptionStandard End Devices Table 2 End Device Specifications DeviceCharacteristic Outside Air Actuator Face and Bypass Actuator 2-way Control ValveStandard End Devices Table 2 End Device Specifications DeviceCharacteristic 3-way Control Valve Time clock Zone sensorStandard End Devices Table 2 End Device Specifications DeviceCharacteristic Humidity Sensor CO 2 Sensor Fan RelayStandard End Devices Table 2 End Device Specifications DeviceCharacteristic DescriptionInstallation and Wiring SpecificationsDescription Installation and WiringTable 3 Binary inputs typically 24 mA AC TerminalsDescription Installation and WiringTable 4 Binary outputs TerminalsDescription Installation and WiringTable 6 Analog inputs TerminalsInstallation and Wiring MountingFigure 9 Vertical classroom unit ventilator end pocket Installation and WiringFigure 10 Horizontal classroom unit ventilator end pocket Wiring Installation and WiringPower Installation and Wiring Installing the Wall- Mounted Zone Sensor OptionalFigure 14 Relative humidity sensor Figure 15 CO 2 Sensor Installation and WiringHumidity and CO2 Sensors UV-SVP01A-ENTypical Wiring Diagram-Wall Mounted Zone Sensor UV-SVP01A-ENTypical Wiring Diagram-Unit Mounted Zone Sensor UV-SVP01A-ENMounted Switch, Wall Mounted Sensor Typical Wiring Diagram-UnitUV-SVP01A-EN Input/Output Summary Input/Output Summarysummary Input/Output Summary Zone Temperature Setpoint Fan Speed Entering Water TemperatureAnalog Inputs Discharge Air Temperature Outdoor Air Temperature Table 8 Input and output summaryConfiguration Configurable parametersBinary output ConfigurationTable 10 Binary output summary TB4-1/TB4-2Configuration ConfigurationConfiguration Table 11 Binary input summaryDefault ConfigurationTable 13 Fan configuration ranges Fan configuration DefaultDefault ConfigurationTable 15 Setpoint defaults DefaultTable 19 Control wait timer ConfigurationTable 18 Bypass timer range Default DefaultLocation Identifier Unit Identification TagUnit Operation Heating And Cooling Changeover Logic4 = Night Purge air changeover not supported Unit OperationFigure 17 “Heat/Cool Changeover logic” Fan Operation Cooling OperationHeating Operation Unit OperationUnit Operation Valve OperationFace-and-Bypass Damper Operation Exhaust fan/damper operationModulating Outdoor Air Operation Entering Water Temperature SamplingUnit Operation Electric Heat Operation Economizer OperationDX Operation Baseboard Heat OperationFan Status Filter Status/ Maintenance TimerOutput Overrides Other ModesData Sharing-LonWorks Unit OperationFigure 24 “More complex data sharing application” Figure 24 More complex data sharing application Unit OperationUV-SVP01A-EN Unit Operation Heating And Cooling Changeover LogicUnit Operation Figure 17 “Heat/Cool Changeover logic”Heating Operation Unit OperationCooling Operation Fan OperationValve Operation Unit OperationFace-and-Bypass Damper Operation Unit Operation Entering Water Temperature SamplingModulating Outdoor Air Operation DX Operation Unit OperationEconomizer Operation Electric Heat OperationOutput Overrides Filter Status/ Maintenance TimerUnit Operation Fan StatusData Sharing-LonWorks Unit OperationFigure 24 “More complex data sharing application” Figure 24 More complex data sharing application Unit OperationUV-SVP01A-EN Led Operation TroubleshootingManual Output Test DX, or cool or TroubleshootingTable 26 Test sequence for non face-and-bypass unit configurations Face-andDX, or cool or heat TroubleshootingTable 27 Test sequence for face-and-bypass unit configurations Face-andSafeties TroubleshootingTable 28 Tracer ZN.520 Unit Controller diagnostics DiagnosticsTroubleshooting DiagnosticDiagnostic TroubleshootingTable 28 Tracer ZN.520 Unit Controller diagnostics ResetTroubleshooting Translating Multiple DiagnosticsResetting Diagnostics Cycling powerTroubleshooting Questionable unit operationFans Probable cause TroubleshootingTable 30 Valves stay closed Possible ExplanationProbable cause TroubleshootingTable 31 Valves stay open Possible ExplanationProbable cause TroubleshootingTable 33 Outdoor air damper stays closed ExplanationTracer ZN.520 Unit Controller Replacement Replacing Circuit BoardsHardwired Thermistor Values Hardwired Setpoint AdjustmentFan Switch Resistance Values AppendixTable 38 Binary configuration details Appendix-Binary ConfigurationBinary Configuration ConfigurationTable 39 Unit operation based on the effective heat/cool output Appendix-Unit OperationUnit Operation Based On The Effective HEAT/COOL Output Application mode input nviApplicModeApplication mode input Appendix-Unit Operation contTable 39 Unit operation based on the effective heat/cool output Heat/cool mode inputTable 41 Configuration properties1 Appendix-Data ListsData Lists Configuration propertySetting the Time Clock Appendix-TimeclockReview and Change Programs Appendix-TimeclockOverride Program Manual Operation O appears in the display. To return to automatic pro To switch the load permanently OFF, press the key a third timeAppendix-Timeclock UV-SVP01A-ENThis area provided for the removable tag Appendix-Location IdentifierUV-SVP01A-EN Location Identifier UV-SVP01A-ENLocation Identifier UV-SVP01A-ENLocation Identifier UV-SVP01A-ENUV-SVP01A-EN The Trane CompanyLiterature Order Number File Number