Trane BCXC-SVX01B-EN, BCVC, BCHC Translating Multiple Diagnostics, Tracer ZN520 test sequence

Page 74

Diagnostics

Table 39. Tracer ZN010 and ZN510 test sequence for 1-heat/1-cool configurations

 

 

Fan

Cool output(a)

Heat output

Damper

Steps

J1-1, J1-3

J1-

J1-

J1-

 

 

 

 

 

 

1.

Off

Off

Off

Off

Closed

 

 

 

 

 

 

2.

Fan high

High

Off

Off

Closed

 

 

 

 

 

 

3.

Exhaust fan

(b)

Off

Off

Closed

 

 

 

 

 

 

4.

Fan

Low

Off

Off

Closed

 

 

 

 

 

 

5.

Cool

High

On

Off

Closed

 

 

 

 

 

 

6.

Heat

High

Off

On

Closed

 

 

 

 

 

 

7.

Two-position damper(c)

High

Off

Off

Open

8.

Exit

(d)

 

 

 

Note: The 2-position damper energizes during this step if the controller is configured for a 2-position damper.

(a)At the beginning of step 2, the controller attempts to clear all diagnostics.

(b)Tracer™ ZN010 and ZN510 have a binary output default as “none” on J1-X from the factory. If the unit has a 2-speed fan, step 3 will energize the low fan speed. If the unit has a single speed fan, step 3 will continue to energize the high fan speed. This binary output can be reconfigured as an exhaust fan, with the use of Rover™ software.

(c)After the fresh air damper step, the test sequence performs the exit step.This initiates a reset and attempts to return the controller to normal operation.

(d)For all 1-heat/1-cool applications including 2-pipe changeover, the cooling and heat test stage energize. This occurs even though during normal 2-pipe changeover operation binary output controls the unit valve for both cooling and heating.

Table 40. Tracer ZN520 test sequence

 

 

 

 

Main

Electric heat or Fresh air

 

 

 

 

 

 

 

Fan

valve

aux. valve

damper

Generic/baseboard heat

 

 

 

 

 

 

 

 

 

 

 

Step

J1-1

J1-2

J1-3

J1-5

J1-6

J1-9

J1-10

J1-11

J1-12

TB4-1

 

 

 

 

 

 

 

 

 

 

 

 

1.

Off(a)

Off

Off

Off

Off

On

Off

aux: on

Off

On

Off

 

 

 

 

 

 

EH: off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.

Fan high(b)

High

Off

Off

Off

Off

Off

Off

Off

Off

Off

3.(c)

Off

 

Off

Off

Off

Off

Off

Off

Off

Off

4.

Fan low

Off

Off

Low

Off

Off

Off

Off

Off

Off

Off

 

 

 

 

 

 

 

 

 

 

 

 

5.

Main open

High

Off

Off

On

Off

Off

Off

Off

Off

Off

 

 

 

 

 

 

 

 

 

 

 

 

6.

Main close, EH1 on

High

Off

Off

Off

On

On

Off

Off

Off

Off

 

 

 

 

 

 

 

 

 

 

 

 

7.

Aux. open

High

Exh(d)

Off

Off

Off

On

Off

Off

Off

Off

 

 

EH1 on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8.

Aux. close, damper open

High

Off

Off

Off

Off

Off

On

On

Off

Off

 

 

 

 

 

 

 

EH1 off

EH2 on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9.

Damper close

High

Off

Off

Off

Off

Off

Off

Off

On

Off

 

 

 

 

 

 

 

 

 

 

 

10. Generic/baseboard heat energized

High

Off

Off

Off

Off

Off

Off

Off

Off

On

 

 

 

 

 

 

 

 

 

 

 

11. Exit(e)

Exit

 

 

 

 

 

 

 

 

 

(a)Upon entering manual output test mode, the controller turns off all fan and electric heat outputs and drives.

(b)At the beginning of step 2, the controller attempts to clear all diagnostics.

(c)The low fan speed output energizes at step 3. If the unit is configured for a 1 speed fan, the fan remains on high speed at step 3.

(d)If the unit is configured for a 1- or 2-speed fan, and BOP2 is configured for an exhaust fan, the exhaust fan output energizes on step 7. The exhaust fan output is shared with medium speed.

(e)After step 10, the test sequence performs an exit. This initiates a reset and attempts to return the controller to normal operation.

Diagnostics

Translating Multiple Diagnostics

The controller senses and records each diagnostic independently of other diagnostics. It is possible to have multiple diagnostics present simultaneously. The diagnostics are reported in the order they occur.

Possible diagnostics include:

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BCXC-SVX01B-EN

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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