Manuals / Trane / Kitchen Appliance / Ventilation Hood

Trane Tracer Unit Ventilator Replacing Circuit Boards, Tracer ZN.520 Unit Controller Replacement

Models: Tracer Unit Ventilator ZN.520

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Replacing Circuit Boards

Tracer ZN.520 Unit Controller Replacement

1.Disconnect power or disable the circuit breaker to unit.

2.Remove bad or questionable Tracer ZN.520 controller cir- cuit board.

3.Install controller in the unit with the heat-sink placement at the top of the control box. (See page 32).

4.Connect the power to the cir- cuit board ONLY.

5.Connect Rover and properly configure the controller, unless a previously config- ured board is purchased.

6.Power down.

7.Connect the remaining input and output wiring to the con- troller.

8.Reapply power.

9.Complete sequence 7 and 8 above in the installation sec- tion of this manual.

10.Refer to BAS manual for instructions on how to install the new ZN.520 into BAS sys- tem.

UV-SVP01A-EN

Page 65

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Trane Tracer Unit Ventilator manual Replacing Circuit Boards, Tracer ZN.520 Unit Controller Replacement

Contents

Installation Owner Diagnostics Tracer ZN.520 for Classroom Unit VentilatorUV-SVP01A-EN Installation of New Units Start-up ProceduresNote Manual output test can be initiated at any time Power Up SequenceStart-up Procedures Tracer ZN.520 Overview General InformationTemperature Table 1 Tracer ZN.520 Unit Controller features and coil availabilityAdjust General InformationPower Generic Auto Test Button Status LED Communications LED Controller Circuit Board FeaturesService Button and LED CommunicationsService Controller FeaturesTypical Components Test” on page 48, for more infor- mationservice tool. See “Configuration” Communication ConfigurationsPeer-to-Peer Communications Integrated Comfort SystemService tool Communication ConfigurationsStand-Alone Communication InterfaceTable 2 End Device Specifications Device Standard End DevicesCharacteristic DescriptionCharacteristic Table 2 End Device Specifications DeviceStandard End Devices Outside Air Actuator Face and Bypass Actuator 2-way Control ValveCharacteristic Table 2 End Device Specifications DeviceStandard End Devices 3-way Control Valve Time clock Zone sensorCharacteristic Table 2 End Device Specifications DeviceStandard End Devices Humidity Sensor CO 2 Sensor Fan RelayCharacteristic Table 2 End Device Specifications DeviceStandard End Devices DescriptionSpecifications Installation and WiringTable 3 Binary inputs typically 24 mA AC Installation and WiringDescription TerminalsTable 4 Binary outputs Installation and WiringDescription TerminalsTable 6 Analog inputs Installation and WiringDescription TerminalsMounting Installation and WiringFigure 10 Horizontal classroom unit ventilator end pocket Installation and WiringFigure 9 Vertical classroom unit ventilator end pocket Power Installation and WiringWiring Installing the Wall- Mounted Zone Sensor Optional Installation and WiringHumidity and CO2 Sensors Installation and WiringFigure 14 Relative humidity sensor Figure 15 CO 2 Sensor UV-SVP01A-ENUV-SVP01A-EN Typical Wiring Diagram-Wall Mounted Zone SensorUV-SVP01A-EN Typical Wiring Diagram-Unit Mounted Zone SensorUV-SVP01A-EN Typical Wiring Diagram-UnitMounted Switch, Wall Mounted Sensor summary Input/Output SummaryInput/Output Summary Analog Inputs Discharge Air Temperature Outdoor Air Temperature Zone Temperature Setpoint Fan Speed Entering Water TemperatureInput/Output Summary Table 8 Input and output summaryConfigurable parameters ConfigurationTable 10 Binary output summary ConfigurationBinary output TB4-1/TB4-2Configuration ConfigurationConfiguration Table 11 Binary input summaryTable 13 Fan configuration ranges Fan configuration ConfigurationDefault DefaultTable 15 Setpoint defaults ConfigurationDefault DefaultTable 18 Bypass timer range Default ConfigurationTable 19 Control wait timer DefaultUnit Identification Tag Location IdentifierHeating And Cooling Changeover Logic Unit OperationFigure 17 “Heat/Cool Changeover logic” Unit Operation4 = Night Purge air changeover not supported Heating Operation Cooling OperationFan Operation Unit OperationFace-and-Bypass Damper Operation Valve OperationUnit Operation Exhaust fan/damper operationUnit Operation Entering Water Temperature SamplingModulating Outdoor Air Operation DX Operation Economizer OperationElectric Heat Operation Baseboard Heat OperationOutput Overrides Filter Status/ Maintenance TimerFan Status Other ModesFigure 24 “More complex data sharing application” Unit OperationData Sharing-LonWorks UV-SVP01A-EN Unit OperationFigure 24 More complex data sharing application Heating And Cooling Changeover Logic Unit OperationFigure 17 “Heat/Cool Changeover logic” Unit OperationCooling Operation Unit OperationHeating Operation Fan OperationFace-and-Bypass Damper Operation Unit OperationValve Operation Modulating Outdoor Air Operation Entering Water Temperature SamplingUnit Operation Economizer Operation Unit OperationDX Operation Electric Heat OperationUnit Operation Filter Status/ Maintenance TimerOutput Overrides Fan StatusFigure 24 “More complex data sharing application” Unit OperationData Sharing-LonWorks UV-SVP01A-EN Unit OperationFigure 24 More complex data sharing application Manual Output Test TroubleshootingLed Operation Table 26 Test sequence for non face-and-bypass unit configurations TroubleshootingDX, or cool or Face-andTable 27 Test sequence for face-and-bypass unit configurations TroubleshootingDX, or cool or heat Face-andTroubleshooting SafetiesTroubleshooting DiagnosticsTable 28 Tracer ZN.520 Unit Controller diagnostics DiagnosticTable 28 Tracer ZN.520 Unit Controller diagnostics TroubleshootingDiagnostic ResetResetting Diagnostics Translating Multiple DiagnosticsTroubleshooting Cycling powerFans Questionable unit operationTroubleshooting Table 30 Valves stay closed TroubleshootingProbable cause Possible ExplanationTable 31 Valves stay open TroubleshootingProbable cause Possible ExplanationTable 33 Outdoor air damper stays closed TroubleshootingProbable cause ExplanationReplacing Circuit Boards Tracer ZN.520 Unit Controller ReplacementFan Switch Resistance Values Hardwired Setpoint AdjustmentHardwired Thermistor Values AppendixBinary Configuration Appendix-Binary ConfigurationTable 38 Binary configuration details ConfigurationUnit Operation Based On The Effective HEAT/COOL Output Appendix-Unit OperationTable 39 Unit operation based on the effective heat/cool output Application mode input nviApplicModeTable 39 Unit operation based on the effective heat/cool output Appendix-Unit Operation contApplication mode input Heat/cool mode inputData Lists Appendix-Data ListsTable 41 Configuration properties1 Configuration propertyAppendix-Timeclock Setting the Time ClockOverride Program Manual Operation Appendix-TimeclockReview and Change Programs Appendix-Timeclock To switch the load permanently OFF, press the key a third timeO appears in the display. To return to automatic pro UV-SVP01A-ENUV-SVP01A-EN Appendix-Location IdentifierThis area provided for the removable tag UV-SVP01A-EN Location IdentifierUV-SVP01A-EN Location IdentifierUV-SVP01A-EN Location IdentifierLiterature Order Number The Trane CompanyUV-SVP01A-EN File Number