Trane CNT-SVX07C-EN, Zone Controller Step Result, BOP1 BOP2 BOP3 BOP4 BOP5 BOP6 BOP7 BOP8 BOP9

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Manual output test

Table 12. Manual output test sequence for face-and-bypass configurations (two-position isolation valves only)

Step	Result	BOP1	BOP2	BOP3	BOP4	BOP5	BOP6	BOP7	BOP8	BOP9	BO
Number of times Test button is pressed		Fan high	1)Fan medium 2)Exhaust fan	Fan low	Two-position cool/ changeover valve	Face and bypass damper, open to face	Two-position heat valve	Face and bypass damper, close (bypass)	Outdoor air damper, open	Outdoor air damper, close	1)Generic

1	Begins test	Off	Off	Off	Off	Off	Off	On/Close	Off	On/Close	Off
	mode1
2	Fan high2	On/High	Off	Off	Off	On/Open	Off	Off	Off	Off	Off
3	Fan	Off	1) On/Med	Off	Off	On/Open	Off	Off	Off	Off	Off
	medium3		2) Off
4	Fan low4	Off	Off	On/Low	Off	On/Open	Off	Off	Off	Off	Off
5	Main open,	On/High	Off	Off	On/Open	On/Open	Off	Off	Off	Off	Off
	DX on

6	Main close,	On/High	Off	Off	Off	On/Open	On/Open	Off	Off	Off	Off
	DX off, aux
	open

7	Aux open,	On/High	1) Off	Off	Off	On/Open	On/Open	Off	Off	Off	Off
	EH1 on,		2) On
	exhaust
	fan5
8	Aux close,	On/High	Off	Off	Off	Off	Off	On/Close	On/Open	Off	Off
	damper
	open

9	Outdoor air	On/High	Off	Off	Off	Off	Off	On/Close	Off	On/Close	Off
	damper
	close

10	Generic/	On/High	Off	Off	Off	Off	Off	On/Close	Off	Off	On
	baseboard
	heat
	energized6
11: Exit5

1The controller turns off all fan and electric heat outputs and drives all dampers and valves closed.

2The controller attempts to clear all diagnostics.

3If configured for a 3-speed fan, the medium fan speed output will energize at step 3. If configured for a 2-speed fan, the fan remains on high at step 3.

4If configured for a 3-speed fan, the medium fan speed output energizes at step 4. If configured for a 2-speed fan, the low fan speed output en at step 4. If configured for a 1-speed fan, the fan remains on high speed at step 4.

5If the unit is configured for a 1- or 2-speed fan, the exhaust fan output energizes on step 7. The exhaust fan output is shared with medium fan

6After step 10, the manual output test performs an exit, which initiates a reset to restore the controller to normal operation.

CNT-SVX07C-EN

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Contents Installation and Operation Tracer ZN521 Zone Controller Page CNT-SVX07C-EN April CNT-SVX07C-EN Tracer ZN521 Zone Controller Installation and Operation CNT-SVX07C-EN Contents Sequence of operations Status indicators for operation and communication Troubleshooting Index Product description Overview and specificationsClearances DimensionsStorage environment Plastic-cover model dimensions and clearances Additional components Agency listing/complianceDamper actuators Tracer zone temperature sensor optionsZone humidity sensor CO2 sensorOverview and specifications AC-power wiring Input/output terminal wiringGeneral wiring information Communication-link wiring and addressing General wiring information Operating environment requirements Location recommendationsMounting the Tracer ZN521 zone controller Mounting recommendationsApplication SpeedfanMultiple Dehumidification Typical applications for the Tracer ZN521 zone controllerControlValve Economizing HeatElectricBinary inputs BI1 Low-coil-temperature detectionBI2 Condensate overflow Binary inputsBI4 Fan status BI3 Occupancy or generic binary inputAnalog inputs ZN Zone temperatureGND Ground terminals Analog inputsSET Local setpoint FAN Fan mode inputAI1 Entering water temperature AI3 Outdoor air temperature or generic temperature AI2 Discharge air temperatureAI4 Universal 4-20 mA AI4 configuration options and associated measurement rangesConfiguration Measurement range AI4 terminal wiring CO2 measurement Generic binary output Binary outputsBinary output functions Binary output FunctionsOverriding binary outputs Wiring requirements and optionsRequired controller inputs for proper operation Function Input source For more information SeeTwo-pipe hydronic-cooling unit Two-pipe hydronic-heating unit Two-pipe hydronic heating/cooling unit with auto changeover Four-pipe hydronic heating/cooling unit Four-pipe heating/cooling unit with auto changeover Two-pipe heating unit with DX cooling Electric heat unit with DX cooling Electric heat unit Two-pipe heating unit with face-and-bypass damper Two-pipe heating/cooling unit with face-and-bypass damper Four-pipe heating/cooling unit with face-and-bypass damper Input/output functions and wiring for typical applications Random start Power-up sequenceUnoccupied mode Occupied modeOccupied standby mode Occupancy modesTimed override control Occupied bypass modeSimplified zone control Zone temperature controlCascade zone control Discharge air tempering Heating or cooling modeMorning warm-up Morning cool-downFan operation Entering water temperature sampling functionExhaust control Exhaust controlModulating valve operation Valve operationModulating valve calibration Valve control optionsTwo-position valve operation Modulating outdoor/return air dampersIsolation-valve operation Two-pipe operationModulating outdoor air damper position Economizing free cooling Ashrae Cycle 1 conformanceAshrae Cycle 2 conformance Face-and-bypass damper operation Two-position control of a modulating outdoor air damperDX cooling operation Face-and-bypass, isolation-valve operationDehumidification Electric heat operationBaseboard heat operation Unit protection strategies Peer-to-peer communicationLow-coil-temperature protection Smart resetFan off delay Condensate overflowFreeze avoidance Filter-maintenance timerFreeze protection discharge air temperature low limit Tracer ZN521 zone controller circuit board Test buttonManual output test Output For nonClose damper, air Outdoor Open damper, air Outdoor BOP1 BOP2 BOP3 BOP4 BOP5 BOP6 BOP7 BOP8 BOP9 Step ResultRed LED Service indicator Service pin buttonInterpreting LEDs LED activity ExplanationYellow LED Communications indicator Green LED Status indicatorTypes of diagnostics DiagnosticsDiagnostics Table of diagnosticsDiagnostic Probable cause Consequences Type Fan unaffectedPosition Valved unaffectedDamper unaffected Status indicators for operation and communication Probable cause Explanation Fan does not energizeValves remain closed TroubleshootingDX or electric heat does not energize Valves remain openOutdoor air damper remains open Outdoor air damper remains closedOutdoor air damper remains open Troubleshooting Numerics IndexIndex Index Index Page Trane