Four-Pipe Bcxc with Tracer ZN520

Wiring Diagrams

•460 volt/3 phase

•2-position valves

•condensate overflow

•fan status switch

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. Failureto usecopper conductors could cause equipment damage.

BCXC-SVX01B-EN

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

Contents

April Blower Coil Air Handler Environmental Concerns Refrigerant warning informationResponsible Refrigerant Practices Hazard of Explosion and Deadly Gases Trademarks About This Manual Table of Contents BCXC-SVX01B-EN Digits 1, 2, 3, 4 Unit Model Digit 16 Motor HorsepowerDigits 5, 6, 7 Unit Size Digit 8 Unit Voltage Model Number Description Blower Coil General Information General Information General Information Receiving and Handling Pre-InstallationJobsite Storage Recommendations Service Access Installation PreparationPre-Installation Unit size Dimension a Rigging and Handling Unit Handling ProcedureImproper Unit Lift Unit Location Recommendations Skid Removal Pre-Installation Checklist Horizontal blower coil dimensions in. and weights lb Dimensions and WeightsUnit Size RH LH Weight Horizontal Blower Coil Vertical blower coil dimensions in. and weights lb Dimensions and WeightsUnit Size Weight Vertical Blower Coil Angle Filter and Mixing Box Angle filter and mixing box dimensions in. and weights lbUnit size AIR Flow Filter Filter Access Panel Bottom or Top Access Filter Box Electric Heat Electric heat dimensions in. and weights lb Steam Coil Steam coil box dimensions in. and weights lbCoil Connections, NPT Supply Return Hydronic coil connection sizes, OD Coil ConnectionsDX coil connection sizes, OD Steam coil connection sizes, female connection, NPT Basic Piping Piping Packages Dimensions and Weights Deluxe Piping Actual size Piping Nominal Installing Wall Mounted Controls Installation ControlsZone Sensor Installation Wiring Instructions Installation Controls Communication WiringService Communication Wiring Zone Sensors Without Interconnecting Wiring Tracer Summit Communication Wiring Installation Electrical Zone sensor maximum wiring distances, ft m Installation ElectricalWire size range Max. wiring distance Electrical Grounding Restrictions Hazardous Voltage Available electric heat, min-max kW Useful FormulasUnit size Voltage Motor electrical data 240/50/1 220/50/1190/50/3 380/50/3 Installing the Unit Installation MechanicalBchc Installation Procedure Horizontal Units, Model Bchc Vertical Units, Model Bcvc Installation Mechanical Mixing Box Option Heating Coil Option Linkage Installation Procedure Mixing Box Installation ProcedureCondensate Drain Connections Duct Connections Recommended drain trap installation for draw-through units Water Coil Connections Installation PipingPotential coil-freeze condition Refrigerant Coil Piping Valve Damage Installation PipingSuction Line Field-installed evaporation piping example Field-Installing Evaporator Piping Coil Condensate Steam PipingGeneral Steam Coils Type NS steam coils, horizontal tubes for horizontal airflow Control Options Controls InterfaceTracer Controllers Controls Interface Rover Service SoftwareTracer controller input/output summary Tracer controller ZN010 ZN510 ZN520 End Device Option Availability Tracer controller function summaryTracer Control Device ZN010 Tracer ZN510 Tracer ZN520 Pre-Start Pre-Start ChecklistReceiving Unit Location Ductwork Pre-Start Component OverviewUnit Piping Electrical Sequence of Operation Start-UpTracer ZN Controller Sequence of Operation Unoccupied Mode Occupied ModeSensor type Sensor position Unit occupancy mode Start-Up Cooling Operation Occupied Standby Mode Tracer ZN510 or ZN520 onlyOccupied Bypass Mode, Tracer ZN510 or ZN520 Only DX Cooling Tracer ZN520 only Start-Up Economizer Cooling Tracer ZN520 OnlyDischarge Air Tempering Tracer ZN520 Only Heating Operation Tracer ZN520 fan configuration Fan Mode Operation Rotating ComponentsAuto fan operation Fan speed default Fan sequence of operation Tracer ZN010 and ZN510 Fan Speed SwitchTracer ZN520 Continuous Fan Operation Fan mode operation, Tracer ZN010 and ZN510 Fan Off DelayStart-Up Fan Cycling Operation Fan Start on High Speed Local fan switch enabled Entering Water Temperature Sampling FunctionTwo- and Four-Pipe Changeover Operation Fan operation in heating and cooling modes Unit type EWT sensor required? Coil water temperature Unit mode as related to water temperatureElectric Heat Operation Economizer Damper Tracer ZN520 Only Tracer Dehumidification Tracer ZN520 Only BIP1 Low Temperature Detection OptionData Sharing Tracer ZN510 or ZN520 Only Binary Inputs BIP2 Condensate Overflow Detection Option Binary input configurationsBIP3 Occupancy Sensor BIP4 Fan Status ZN520 Only Binary Outputs Analog InputsAnalog inputs Analog input Terminal Function Range ZN010 ZN510 ZN520 Binary output configuration Space Temperature MeasurementZone sensor wiring connections Zone Sensor External Setpoint Adjustment Fan Mode SwitchFan Switch Local Setpoint Communication Jack On/Cancel Buttons Maintenance Procedures Maintenance Fan Assembly Set Screws MaintenanceFan Belt Tension Torque in.-lb Ft-lb BCBH/BCVC valve package waterflow limits Belt tension Hydronic coil data BCHC/BCVC coil general dataRow coil Steam coil data Unit Motor Motor sheave Fan sheave Belt Drive data1750 1450 Size Watts Browning Trane 60 Hz 50 Hz Potential unit damage from coil cleaners Coil MaintenanceInspecting and Cleaning Coils Steam, Hot Water, and Cooling Coil Cleaning Procedure Rotating parts Periodic Maintenance Checklists Maintenance Troubleshooting DiagnosticsLED Activity Manual Output Test Procedure DiagnosticsManual Output Test Translating Multiple Diagnostics DiagnosticsTracer ZN520 test sequence Fan Cool output a Heat output Damper Steps J1-1, J1-3 Automatic Reset by the Controller Resetting Diagnostics Cycling Power Diagnostics Manual Output TestRover Service Tool Diagnostic Reset Tracer ZN510 or ZN520 Only Tracer ZN520 diagnostics Tracer ZN010 and ZN510 controller diagnosticsDiagnostic Latching Fan Valves Electric heat Damper Diagnostic Fan Other outputsa Fan outputs do not energize Common DiagnosticsValves stay closed Probably cause Explanation Electric heat not operating Valves stay openFresh air damper stays closed DX or electric outputs do not energize Fresh air damper stays open Two-Pipe Bcxc with Tracer ZN510 Wiring Diagrams Four-Pipe Bcxc with Tracer ZN510 Wiring Diagrams 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 Bcxc with DX Coil and Tracer ZN520 Field Installed Device Bcxc with DX Coil, Hydronic Heating, and Tracer ZN520 BCXC-SVX01B-EN