Four-Pipe Bcxc with Tracer ZN520

Wiring Diagrams

•460 volt/3 phase

•economizer damper

•condensate overflow

•fan status switch

•wall-mounted zone sensor

WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

NOTICE

Use copper conductors only!

Unit terminals are not designed to accept other conductor types. Failure to use copper conductors could cause equipment damage.

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Trane BCXC-SVX01B-EN, BCVC, BCHC manual Four-Pipe Bcxc with Tracer ZN520

Contents

Blower Coil Air Handler April Responsible Refrigerant Practices Refrigerant warning informationEnvironmental Concerns Hazard of Explosion and Deadly Gases About This Manual Trademarks Table of Contents BCXC-SVX01B-EN Digits 5, 6, 7 Unit Size Digit 16 Motor HorsepowerDigits 1, 2, 3, 4 Unit Model Digit 8 Unit Voltage Model Number Description General Information Blower Coil General Information General Information Jobsite Storage Recommendations Pre-InstallationReceiving and Handling Pre-Installation Installation PreparationService Access Unit size Dimension a Improper Unit Lift Unit Handling ProcedureRigging and Handling Unit Location Recommendations Pre-Installation Checklist Skid Removal Unit Size RH LH Weight Dimensions and WeightsHorizontal blower coil dimensions in. and weights lb Horizontal Blower Coil Unit Size Weight Dimensions and WeightsVertical blower coil dimensions in. and weights lb Vertical Blower Coil Unit 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 Panel Electric heat dimensions in. and weights lb Electric Heat Coil Connections, NPT Steam coil box dimensions in. and weights lbSteam Coil Supply Return DX coil connection sizes, OD Coil ConnectionsHydronic coil connection sizes, OD Steam coil connection sizes, female connection, NPT Piping Packages Basic Piping Dimensions and Weights Deluxe Piping Piping Nominal Actual size Zone Sensor Installation Installation ControlsInstalling Wall Mounted Controls Wiring Instructions Service Communication Wiring Communication WiringInstallation Controls Zone Sensors Without Interconnecting Wiring Tracer Summit Communication Wiring Installation Electrical Wire size range Max. wiring distance Installation ElectricalZone sensor maximum wiring distances, ft m Electrical Grounding Restrictions Hazardous Voltage Unit size Voltage Useful FormulasAvailable electric heat, min-max kW Motor electrical data 190/50/3 220/50/1240/50/1 380/50/3 Bchc Installation Procedure Installation MechanicalInstalling the Unit Horizontal Units, Model Bchc Installation Mechanical Vertical Units, Model Bcvc Heating Coil Option Mixing Box Option Condensate Drain Connections Mixing Box Installation ProcedureLinkage Installation Procedure Recommended drain trap installation for draw-through units Duct Connections Potential coil-freeze condition Installation PipingWater Coil Connections Refrigerant Coil Piping Suction Line Installation PipingValve Damage Field-Installing Evaporator Piping Field-installed evaporation piping example General Steam PipingCoil Condensate Steam Coils Type 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 ZN520 Tracer Control Device ZN010 Tracer ZN510 Tracer ZN520 Tracer controller function summaryEnd Device Option Availability Receiving Pre-Start ChecklistPre-Start Unit Location Unit Piping Pre-Start Component OverviewDuctwork Electrical Tracer ZN Controller Sequence of Operation Start-UpSequence of Operation Sensor type Sensor position Unit occupancy mode Occupied ModeUnoccupied Mode Start-Up Occupied 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 Operation Auto fan operation Fan speed default Fan Mode Operation Rotating ComponentsTracer ZN520 fan configuration Fan sequence of operation Tracer ZN520 Fan Speed SwitchTracer ZN010 and ZN510 Continuous Fan Operation Start-Up Fan Cycling Operation Fan Off DelayFan mode operation, Tracer ZN010 and ZN510 Fan Start on High Speed Two- and Four-Pipe Changeover Operation Entering Water Temperature Sampling FunctionLocal fan switch enabled Fan operation in heating and cooling modes Electric Heat Operation Unit mode as related to water temperatureUnit type EWT sensor required? Coil water temperature Economizer Damper Tracer ZN520 Only Data Sharing Tracer ZN510 or ZN520 Only BIP1 Low Temperature Detection OptionTracer Dehumidification Tracer ZN520 Only Binary Inputs BIP3 Occupancy Sensor Binary input configurationsBIP2 Condensate Overflow Detection Option BIP4 Fan Status ZN520 Only Analog inputs Analog InputsBinary Outputs Analog input Terminal Function Range ZN010 ZN510 ZN520 Zone sensor wiring connections Space Temperature MeasurementBinary output configuration Zone Sensor Fan Switch Fan Mode SwitchExternal Setpoint Adjustment Local Setpoint On/Cancel Buttons Communication Jack Maintenance Maintenance Procedures Fan Belt Tension MaintenanceFan Assembly Set Screws Torque in.-lb Ft-lb Belt tension BCBH/BCVC valve package waterflow limits Row 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 Procedure Periodic Maintenance Checklists Rotating parts Maintenance 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, J1-3 Resetting Diagnostics Automatic Reset by the Controller Rover Service Tool Diagnostics Manual Output TestCycling Power Diagnostic Reset Tracer ZN510 or ZN520 Only Diagnostic Latching Fan Valves Electric heat Damper Tracer ZN010 and ZN510 controller diagnosticsTracer ZN520 diagnostics Diagnostic Fan Other outputsa Valves stay closed Common DiagnosticsFan outputs do not energize Probably cause Explanation Fresh air damper stays closed Valves stay openElectric heat not operating Fresh air damper stays open DX or electric outputs do not energize Wiring Diagrams Two-Pipe Bcxc with Tracer ZN510 Wiring Diagrams Four-Pipe Bcxc with Tracer ZN510 Four-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 ZN520 Bcxc with DX Coil, Hydronic Heating, and Tracer ZN520 BCXC-SVX01B-EN