Trane Tracer Unit Ventilator, ZN.520 manual Test Procedure, Exit6

Page 55

Troubleshooting

If a two-blink pattern remains after an attempt to clear diagnostics, the diagnostic condition is still present and may affect the manual output test. The diagnostic must then be cleared using another method. (See “Resetting Diagnostics” on

page 54.for more information.)

Test Procedure

The procedure for testing is:

1.Press and hold the Test button for at least two seconds, then

release the button to start the test mode.

2.When manual output test mode begins, the controller turns off all outputs and cali- brates modulating end devices closed.

3.Press the Test button once to advance through the test sequence.

Note: To help ensure accurate testing do not press the test button more than once per second.

Alternatively, the manual output test can be controlled over the communications network by using Rover.

When conducting the manual out- put test via communications net- work, the sequence must start with Step 1 (OFF), as shown in Table 26: Test sequence for non face-and-bypass unit configurations and Table 27: Test se- quence for face-and-bypass unit configura-

tions However, subsequent steps may be conducted in any order.

Table 26: Test sequence for non face-and-bypass unit configurations

 

 

 

 

DX, or cool or

Face-and-

Electric heat, or

Outdoor air

Generic/

Step

 

Fan

 

heat/cool changeover

baseboard

 

 

bypass damper

 

heat valve

damper

 

 

 

 

 

valve

 

heat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J1-1

J1-2

J1-3

J1-5

 

J1-6

J1-7

J1-8

J1-9

 

J1-10

J1-11

J1-12

TB4-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1: Off1

Off

Off

Off

Off

 

On

NA

NA

Off

 

Hydronic: on

Off

On

Off

 

 

EH: off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2: Fan high2

High

Off

Off

Off

 

Off

NA

NA

Off

 

Off

Off

Off

Off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3: Fan med3

Off

Med

Off

Off

 

Off

NA

NA

Off

 

Off

Off

Off

Off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4: Fan low4

Off

Off

Low

Off

 

Off

NA

NA

Off

 

Off

Off

Off

Off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5: Main open,

High

Off

Off

On

 

Off

NA

NA

Off

 

Off

Off

Off

Off

DX on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6: Main close,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DX off, aux

High

Off

Off

Off

 

On

NA

NA

On

 

Off

Off

Off

Off

open, EH1 on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7: Aux open,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH1 on, exhaust

High

Exh

Off

Off

 

Off

NA

NA

On

 

Off

Off

Off

Off

fan5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8: Aux close,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH1 off, EH2 on,

High

Off

Off

Off

 

Off

NA

NA

Off

 

On

On

Off

Off

damper open

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9: Damper close

High

Off

Off

Off

 

Off

NA

NA

Off

 

Off

Off

On

Off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10: Generic /

 

 

 

 

 

 

 

 

 

 

 

 

 

 

baseboard heat

High

Off

Off

Off

 

Off

NA

NA

Off

 

Off

Off

Off

On

energized

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11: Exit6

 

 

 

 

 

 

 

Exit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.Upon entering manual output test mode, the controller turns off all fan, DX, and electric heat outputs and drives all dampers and valves closed (if required).

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

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

4.If the unit is configured for a 3-speed fan, the medium fan speed output energizes at step 3. If the unit is configured for a 2-speed fan, 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.

5.If 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 speed.

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

UV-SVP01A-EN

49

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Contents Tracer ZN.520 for Classroom Unit Ventilator Installation Owner DiagnosticsInstallation of New Units Start-up ProceduresPower Up Sequence Tracer ZN.520 Overview General InformationGeneral Information Tracer ZN.520 unit controller circuit board Controller Circuit Board FeaturesService Controller FeaturesTypical Components Peer-to-Peer Communications Communication ConfigurationsIntegrated Comfort System Communication Interface Stand-AloneInteroperability Description End Device SpecificationsCharacteristic Standard End DevicesStandard End Devices Way Control Valve Time clock Zone sensor Dpdt Control Transformer Specifications Installation and WiringBinary Inputs Generic/baseboard Heat Binary Output Binary OutputsAnalog inputs Analog InputsMounting Vertical classroom unit ventilator end pocket Power WiringProper zone sensor placement Installing the Wall- Mounted Zone Sensor OptionalHumidity and CO2 Sensors Typical Wiring Diagram-Wall Mounted Zone Sensor Typical Wiring Diagram-Unit Mounted Zone Sensor Typical Wiring Diagram-Unit Input and output summary Input/Output SummaryInput/Output Summary Heating source ConfigurationConfigurable parameters Cooling sourceBinary Outputs1 Analog input summary Binary input summary ConfigurationBinary Inputs1 Analog Inputs1Default Fan ConfigurationEnd Device Configurations Fan configuration rangesDischarge Air Limits Setpoint defaults Default Valid rangeDischarge air limit ranges Default Valid range SetpointsPower-Up Control Wait Occupied Bypass TimerMaintenance Timers Unit Identification Tag Location IdentifierWinking Occupancy Power-UpUnit Operation Heating And Cooling Changeover LogicHeat/Cool Changeover logic Fan Operation Fan Off DelayCooling Operation Heating OperationModulating Valves Valve OperationFace-and-Bypass Damper Operation Exhaust fan/damper operationTemperature Assumed1 Entering Water Temperature SamplingWater assumption chart Unit ConfigurationBaseboard Heat Operation Economizer OperationDX Operation Electric Heat OperationOther Modes Filter Status/ Maintenance TimerOutput Overrides Fan StatusSimple data sharing application Data Sharing-LonWorksMore complex data sharing application Heating And Cooling Changeover Logic Heat/Cool Changeover logic Cooling Operation Valve Operation Entering Water Temperature Sampling Economizer Operation Output Overrides Data Sharing-LonWorks More complex data sharing application Yellow Comm LED TroubleshootingRed Service LED Black Service Push ButtonExit6 Test ProcedureTroubleshooting Outdoor Air Temperature Failure Space Temperature FailureEntering Water Temperature Failure Discharge Air Temperature LimitDiagnostics Troubleshooting Translating Multiple Diagnostics Fans Rover service toolValves stay closed Probable cause Possible Explanation ValvesValves stay open Probable cause Possible Explanation Outside Air Damper DX/Electric HeatOutdoor air damper stays closed Probable cause Explanation Probable Cause Explanation Outdoor air damper stays openReplacing Circuit Boards Tracer ZN.520 Unit Controller ReplacementAppendix Hardwired Setpoint AdjustmentFan Switch Resistance Values Hardwired Thermistor ValuesFunction Appendix-Binary ConfigurationBinary Configuration Binary configuration details Binary input or outputUnit Operation Based On The Effective HEAT/COOL Output Heat/cool mode input NviHeatCoolEffective heat/ cool mode output nvoHeatCool Appendix-Unit OperationAppendix-Unit Operation Input/output listing1 Configuration properties1Appendix-Data Lists Data ListsSet the Program Setting the Time ClockAppendix-Timeclock Set the Time and DayOverride Program Manual Operation Review and Change ProgramsAppendix-Timeclock Appendix-Location Identifier Location Identifier Location Identifier Location Identifier Trane Company