Four-Pipe Bcxc with Tracer ZN520

Wiring Diagrams

•460 volt/3 phase

•3-wire floating point valves

•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.

BCXC-SVX01B-EN

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

Contents

April Blower Coil Air Handler Refrigerant warning information Environmental ConcernsResponsible Refrigerant Practices Hazard of Explosion and Deadly Gases Trademarks About This Manual Table of Contents BCXC-SVX01B-EN Digit 8 Unit Voltage Digit 16 Motor HorsepowerDigits 1, 2, 3, 4 Unit Model Digits 5, 6, 7 Unit Size Model Number Description Blower Coil General Information General Information General Information Pre-Installation Receiving and HandlingJobsite Storage Recommendations Unit size Dimension a Installation PreparationService Access Pre-Installation Unit Location Recommendations Unit Handling ProcedureRigging and Handling Improper Unit Lift Skid Removal Pre-Installation Checklist Horizontal Blower Coil Dimensions and WeightsHorizontal blower coil dimensions in. and weights lb Unit Size RH LH Weight Vertical Blower Coil Dimensions and WeightsVertical blower coil dimensions in. and weights lb Unit Size Weight Angle filter and mixing box dimensions in. and weights lb Angle Filter and Mixing BoxUnit size AIR Flow Filter Filter Access Panel Bottom or Top Access Filter Box Electric Heat Electric heat dimensions in. and weights lb Supply Return Steam coil box dimensions in. and weights lbSteam Coil Coil Connections, NPT Steam coil connection sizes, female connection, NPT Coil ConnectionsHydronic coil connection sizes, OD DX coil connection sizes, OD Basic Piping Piping Packages Dimensions and Weights Deluxe Piping Actual size Piping Nominal Wiring Instructions Installation ControlsInstalling Wall Mounted Controls Zone Sensor Installation Zone Sensors Without Interconnecting Wiring Communication WiringInstallation Controls Service Communication Wiring Tracer Summit Communication Wiring Installation Electrical Electrical Grounding Restrictions Hazardous Voltage Installation ElectricalZone sensor maximum wiring distances, ft m Wire size range Max. wiring distance Useful Formulas Available electric heat, min-max kWUnit size Voltage Motor electrical data 380/50/3 220/50/1240/50/1 190/50/3 Horizontal Units, Model Bchc Installation MechanicalInstalling the Unit Bchc Installation Procedure Vertical Units, Model Bcvc Installation Mechanical Mixing Box Option Heating Coil Option Mixing Box Installation Procedure Linkage Installation ProcedureCondensate Drain Connections Duct Connections Recommended drain trap installation for draw-through units Refrigerant Coil Piping Installation PipingWater Coil Connections Potential coil-freeze condition Installation Piping Valve DamageSuction Line Field-installed evaporation piping example Field-Installing Evaporator Piping Steam Coils Steam PipingCoil Condensate General Type NS steam coils, horizontal tubes for horizontal airflow Controls Interface Control OptionsTracer Controllers Tracer controller ZN010 ZN510 ZN520 Rover Service SoftwareControls Interface Tracer controller input/output summary Tracer controller function summary End Device Option AvailabilityTracer Control Device ZN010 Tracer ZN510 Tracer ZN520 Unit Location Pre-Start ChecklistPre-Start Receiving Electrical Pre-Start Component OverviewDuctwork Unit Piping Start-Up Sequence of OperationTracer ZN Controller Sequence of Operation Start-Up Occupied ModeUnoccupied Mode Sensor type Sensor position Unit occupancy mode Occupied Standby Mode Tracer ZN510 or ZN520 only Cooling OperationOccupied Bypass Mode, Tracer ZN510 or ZN520 Only Heating Operation Start-Up Economizer Cooling Tracer ZN520 OnlyDX Cooling Tracer ZN520 only Discharge Air Tempering Tracer ZN520 Only Fan sequence of operation Fan Mode Operation Rotating ComponentsTracer ZN520 fan configuration Auto fan operation Fan speed default Continuous Fan Operation Fan Speed SwitchTracer ZN010 and ZN510 Tracer ZN520 Fan Start on High Speed Fan Off DelayFan mode operation, Tracer ZN010 and ZN510 Start-Up Fan Cycling Operation Fan operation in heating and cooling modes Entering Water Temperature Sampling FunctionLocal fan switch enabled Two- and Four-Pipe Changeover Operation Economizer Damper Tracer ZN520 Only Unit mode as related to water temperatureUnit type EWT sensor required? Coil water temperature Electric Heat Operation Binary Inputs BIP1 Low Temperature Detection OptionTracer Dehumidification Tracer ZN520 Only Data Sharing Tracer ZN510 or ZN520 Only BIP4 Fan Status ZN520 Only Binary input configurationsBIP2 Condensate Overflow Detection Option BIP3 Occupancy Sensor Analog input Terminal Function Range ZN010 ZN510 ZN520 Analog InputsBinary Outputs Analog inputs Zone Sensor Space Temperature MeasurementBinary output configuration Zone sensor wiring connections Local Setpoint Fan Mode SwitchExternal Setpoint Adjustment Fan Switch Communication Jack On/Cancel Buttons Maintenance Procedures Maintenance Torque in.-lb Ft-lb MaintenanceFan Assembly Set Screws Fan Belt Tension BCBH/BCVC valve package waterflow limits Belt tension BCHC/BCVC coil general data Hydronic coil dataRow coil Steam coil data Drive data Unit Motor Motor sheave Fan sheave Belt1750 1450 Size Watts Browning Trane 60 Hz 50 Hz Steam, Hot Water, and Cooling Coil Cleaning Procedure Coil MaintenancePotential unit damage from coil cleaners Inspecting and Cleaning Coils Rotating parts Periodic Maintenance Checklists Maintenance Diagnostics TroubleshootingLED Activity Diagnostics Manual Output Test ProcedureManual Output Test Fan Cool output a Heat output Damper Steps J1-1, J1-3 DiagnosticsTranslating Multiple Diagnostics Tracer ZN520 test sequence Automatic Reset by the Controller Resetting Diagnostics Diagnostic Reset Tracer ZN510 or ZN520 Only Diagnostics Manual Output TestCycling Power Rover Service Tool Diagnostic Fan Other outputsa Tracer ZN010 and ZN510 controller diagnosticsTracer ZN520 diagnostics Diagnostic Latching Fan Valves Electric heat Damper Probably cause Explanation Common DiagnosticsFan outputs do not energize Valves stay closed Valves stay open Electric heat not operatingFresh 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