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Ventilation Hood
Trane
Tracer Unit Ventilator, ZN.520
manual
Location Identifier
Models:
Tracer Unit Ventilator
ZN.520
1
75
78
78
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78 pages
280 b
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Troubleshooting
Specification
Install
Typical Wiring Diagram-Unit
Default
Occupied Bypass Timer
Wiring
Maintenance
Communication Configurations
Diagnostics
Page 75
Image 75
Location Identifier
UV-SVP01A-EN
69
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Image 75
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Contents
Tracer ZN.520 for Classroom Unit Ventilator
Installation Owner Diagnostics
Installation of New Units
Start-up Procedures
Power Up Sequence
Tracer ZN.520 Overview
General Information
General Information
Tracer ZN.520 unit controller circuit board
Controller Circuit Board Features
Controller Features
Service
Typical Components
Communication Configurations
Peer-to-Peer Communications
Integrated Comfort System
Stand-Alone
Communication Interface
Interoperability
Description
End Device Specifications
Characteristic
Standard End Devices
Standard End Devices
Way Control Valve Time clock Zone sensor
Dpdt
Control Transformer
Specifications
Installation and Wiring
Binary Inputs
Generic/baseboard Heat Binary Output
Binary Outputs
Analog inputs
Analog Inputs
Mounting
Vertical classroom unit ventilator end pocket
Power
Wiring
Proper zone sensor placement
Installing the Wall- Mounted Zone Sensor Optional
Humidity 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 Summary
Input/Output Summary
Heating source
Configuration
Configurable parameters
Cooling source
Binary Outputs1
Analog input summary
Binary input summary Configuration
Binary Inputs1
Analog Inputs1
Default
Fan Configuration
End Device Configurations
Fan configuration ranges
Discharge Air Limits
Setpoint defaults Default Valid range
Discharge air limit ranges Default Valid range
Setpoints
Occupied Bypass Timer
Power-Up Control Wait
Maintenance Timers
Location Identifier
Unit Identification Tag
Winking
Occupancy
Power-Up
Unit Operation
Heating And Cooling Changeover Logic
Heat/Cool Changeover logic
Fan Operation
Fan Off Delay
Cooling Operation
Heating Operation
Modulating Valves
Valve Operation
Face-and-Bypass Damper Operation
Exhaust fan/damper operation
Temperature Assumed1
Entering Water Temperature Sampling
Water assumption chart
Unit Configuration
Baseboard Heat Operation
Economizer Operation
DX Operation
Electric Heat Operation
Other Modes
Filter Status/ Maintenance Timer
Output Overrides
Fan Status
Simple data sharing application
Data Sharing-LonWorks
More 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
Troubleshooting
Red Service LED
Black Service Push Button
Exit6
Test Procedure
Troubleshooting
Outdoor Air Temperature Failure
Space Temperature Failure
Entering Water Temperature Failure
Discharge Air Temperature Limit
Diagnostics
Troubleshooting
Translating Multiple Diagnostics
Fans
Rover service tool
Valves
Valves stay closed Probable cause Possible Explanation
Valves stay open Probable cause Possible Explanation
DX/Electric Heat
Outside Air Damper
Outdoor air damper stays closed Probable cause Explanation
Probable Cause Explanation
Outdoor air damper stays open
Replacing Circuit Boards
Tracer ZN.520 Unit Controller Replacement
Appendix
Hardwired Setpoint Adjustment
Fan Switch Resistance Values
Hardwired Thermistor Values
Function
Appendix-Binary Configuration
Binary Configuration
Binary configuration details Binary input or output
Unit Operation Based On The Effective HEAT/COOL Output
Heat/cool mode input NviHeatCool
Effective heat/ cool mode output nvoHeatCool
Appendix-Unit Operation
Appendix-Unit Operation
Input/output listing1
Configuration properties1
Appendix-Data Lists
Data Lists
Set the Program
Setting the Time Clock
Appendix-Timeclock
Set the Time and Day
Override Program Manual Operation
Review and Change Programs
Appendix-Timeclock
Appendix-Location Identifier
Location Identifier
Location Identifier
Location Identifier
Trane Company
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