Configuring a VAV controller for a COBP system (ZEC510) for temperature and flow control - Verasys - LIT-12012371 - LC-SBH300-0 - Building automation software - Verasys System - 5.1

Verasys System User Guide
Product name
Verasys System
Document type
User Guide
Document number
LIT-12012371
Version
5.1
Revision date
2024-03-11
Product status
Active

About this task

Note: This procedure is for the ZEC510 VAV controller, and it is the minimal setup needed for temperature and flow control. See the ZEC510 table in Appendix B: Objects and parameters.

Use the following procedure to check the VAV box:

Procedure

  1. Log on to the SBH.
  2. From the device list screen, select the VAV zone you want to configure. The zone home page and the zone menu structure appears.
  3. Navigate to the zone home page to see the details of the status of the unit.
  4. Check that the zone temperature reads properly.
  5. Check that the warmer cooler adjustment works properly.
  6. Navigate to the Control Setup tab and ensure that Control Application Type has the correct setting.
    Important: When you change this parameter, the controller restarts and you lose all other parameter settings.
  7. Select the Equipment Setup tab.
  8. Check which direction closes the damper and use the Damper Polarity parameter to set that position.
  9. Set the Actuator Stroke Time to 60 seconds.
  10. If the VAV box has heating functionality, set the parameters for the heating.
  11. If the VAV box has a fan, set the parameters for the fan type.
  12. If you want to calibrate the temperature, adjust the ZNT Sensor Offset so the temperature matches the sensor you are calibrating to.
  13. See Appendix A: Johnson Controls manufactured VAV box characteristics for directions to close the various JCI brands of VAV boxes.