Trane BCXC-SVX01B-EN, BCVC, BCHC manual On/Cancel Buttons, Communication Jack

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Start-Up

When the fan switch is in the off position, the controller does not control any unit capacity. The unit remains powered and all outputs drive to the closed position. Upon a loss of signal on the fan speed input, the controller reports a diagnostic and reverts to using the default fan speed.

On/Cancel Buttons

Momentarily pressing the on button during unoccupied mode places the controller in occupied bypass mode for 120 minutes. You can adjust the number of minutes in the unit controller configuration using Rover™ service tool. The controller remains in occupied bypass mode until the override time expires or until you press the Cancel button.

Communication Jack

Use the RJ-11 communication as the connection point from Rover™ service tool to the communication link—when the communication jack is wired to the communication link at the controller. By accessing the communication jack via Rover, you gain access to any controller on the link.

Figure 14. Resistance temperature curve for the zone sensor, entering water temperature sensor, and discharge air sensor

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Contents Blower Coil Air Handler AprilResponsible Refrigerant Practices Refrigerant warning informationEnvironmental Concerns Hazard of Explosion and Deadly Gases About This Manual TrademarksTable of Contents BCXC-SVX01B-EN Digits 5, 6, 7 Unit Size Digit 16 Motor HorsepowerDigits 1, 2, 3, 4 Unit Model Digit 8 Unit VoltageModel Number Description General Information Blower Coil General InformationGeneral Information Jobsite Storage Recommendations Pre-InstallationReceiving and Handling Pre-Installation Installation PreparationService Access Unit size Dimension aImproper Unit Lift Unit Handling ProcedureRigging and Handling Unit Location RecommendationsPre-Installation Checklist Skid RemovalUnit Size RH LH Weight Dimensions and WeightsHorizontal blower coil dimensions in. and weights lb Horizontal Blower CoilUnit Size Weight Dimensions and WeightsVertical blower coil dimensions in. and weights lb Vertical Blower CoilUnit size Angle filter and mixing box dimensions in. and weights lbAngle Filter and Mixing Box Bottom or Top Access Filter Box AIR Flow Filter Filter Access PanelElectric heat dimensions in. and weights lb Electric HeatCoil Connections, NPT Steam coil box dimensions in. and weights lbSteam Coil Supply ReturnDX coil connection sizes, OD Coil ConnectionsHydronic coil connection sizes, OD Steam coil connection sizes, female connection, NPTPiping Packages Basic PipingDimensions and Weights Deluxe Piping Piping Nominal Actual sizeZone Sensor Installation Installation ControlsInstalling Wall Mounted Controls Wiring InstructionsService Communication Wiring Communication WiringInstallation Controls Zone Sensors Without Interconnecting WiringTracer Summit Communication Wiring Installation Electrical Wire size range Max. wiring distance Installation ElectricalZone sensor maximum wiring distances, ft m Electrical Grounding Restrictions Hazardous VoltageUnit size Voltage Useful FormulasAvailable electric heat, min-max kW Motor electrical data 190/50/3 220/50/1240/50/1 380/50/3Bchc Installation Procedure Installation MechanicalInstalling the Unit Horizontal Units, Model BchcInstallation Mechanical Vertical Units, Model BcvcHeating Coil Option Mixing Box OptionCondensate Drain Connections Mixing Box Installation ProcedureLinkage Installation Procedure Recommended drain trap installation for draw-through units Duct ConnectionsPotential coil-freeze condition Installation PipingWater Coil Connections Refrigerant Coil PipingSuction Line Installation PipingValve Damage Field-Installing Evaporator Piping Field-installed evaporation piping exampleGeneral Steam PipingCoil Condensate Steam CoilsType NS steam coils, horizontal tubes for horizontal airflow Tracer Controllers Controls InterfaceControl Options Tracer controller input/output summary Rover Service SoftwareControls Interface Tracer controller ZN010 ZN510 ZN520Tracer Control Device ZN010 Tracer ZN510 Tracer ZN520 Tracer controller function summaryEnd Device Option Availability Receiving Pre-Start ChecklistPre-Start Unit LocationUnit Piping Pre-Start Component OverviewDuctwork ElectricalTracer ZN Controller Sequence of Operation Start-UpSequence of Operation Sensor type Sensor position Unit occupancy mode Occupied ModeUnoccupied Mode Start-UpOccupied Bypass Mode, Tracer ZN510 or ZN520 Only Occupied Standby Mode Tracer ZN510 or ZN520 onlyCooling Operation Discharge Air Tempering Tracer ZN520 Only Start-Up Economizer Cooling Tracer ZN520 OnlyDX Cooling Tracer ZN520 only Heating OperationAuto fan operation Fan speed default Fan Mode Operation Rotating ComponentsTracer ZN520 fan configuration Fan sequence of operationTracer ZN520 Fan Speed SwitchTracer ZN010 and ZN510 Continuous Fan OperationStart-Up Fan Cycling Operation Fan Off DelayFan mode operation, Tracer ZN010 and ZN510 Fan Start on High SpeedTwo- and Four-Pipe Changeover Operation Entering Water Temperature Sampling FunctionLocal fan switch enabled Fan operation in heating and cooling modesElectric Heat Operation Unit mode as related to water temperatureUnit type EWT sensor required? Coil water temperature Economizer Damper Tracer ZN520 OnlyData Sharing Tracer ZN510 or ZN520 Only BIP1 Low Temperature Detection OptionTracer Dehumidification Tracer ZN520 Only Binary InputsBIP3 Occupancy Sensor Binary input configurationsBIP2 Condensate Overflow Detection Option BIP4 Fan Status ZN520 OnlyAnalog inputs Analog InputsBinary Outputs Analog input Terminal Function Range ZN010 ZN510 ZN520Zone sensor wiring connections Space Temperature MeasurementBinary output configuration Zone SensorFan Switch Fan Mode SwitchExternal Setpoint Adjustment Local SetpointOn/Cancel Buttons Communication JackMaintenance Maintenance ProceduresFan Belt Tension MaintenanceFan Assembly Set Screws Torque in.-lb Ft-lbBelt tension BCBH/BCVC valve package waterflow limitsRow coil BCHC/BCVC coil general dataHydronic coil data Steam coil data 1750 1450 Size Watts Browning Trane 60 Hz 50 Hz Drive dataUnit Motor Motor sheave Fan sheave Belt Inspecting and Cleaning Coils Coil MaintenancePotential unit damage from coil cleaners Steam, Hot Water, and Cooling Coil Cleaning ProcedurePeriodic Maintenance Checklists Rotating partsMaintenance LED Activity DiagnosticsTroubleshooting Manual Output Test DiagnosticsManual Output Test Procedure Tracer ZN520 test sequence DiagnosticsTranslating Multiple Diagnostics Fan Cool output a Heat output Damper Steps J1-1, J1-3Resetting Diagnostics Automatic Reset by the ControllerRover Service Tool Diagnostics Manual Output TestCycling Power Diagnostic Reset Tracer ZN510 or ZN520 OnlyDiagnostic Latching Fan Valves Electric heat Damper Tracer ZN010 and ZN510 controller diagnosticsTracer ZN520 diagnostics Diagnostic Fan Other outputsaValves stay closed Common DiagnosticsFan outputs do not energize Probably cause ExplanationFresh air damper stays closed Valves stay openElectric heat not operating Fresh air damper stays open DX or electric outputs do not energizeWiring Diagrams Two-Pipe Bcxc with Tracer ZN510Wiring Diagrams Four-Pipe Bcxc with Tracer ZN510Four-Pipe Bcxc with Tracer ZN510 Two-Pipe Bcxc with Tracer ZN520 Four-Pipe Bcxc with Tracer ZN520 Four-Pipe Bcxc with Tracer ZN520 Four-Pipe Bcxc with Tracer ZN520 Four-Pipe Bcxc with Control Interface Four-Pipe Bcxc with Control Interface Field Installed Device Bcxc with DX Coil and Tracer ZN520Bcxc with DX Coil, Hydronic Heating, and Tracer ZN520 BCXC-SVX01B-EN