Wiring - Verasys - Field Device - ZEC510

Verasys ZEC510 VAV Controllers Installation Guide

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Installation Guide
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  • Risk of Electric Shock
  • Disconnect power from the controller before making any adjustments. Do not touch any part of the printed circuit board while power is applied. Failure to follow these precautions can result in personal injury or death.
  • Risque de décharge électrique
  • Déconnecter l'alimentation du controller avant toute opération de réglage. Veiller à ne toucher aucune partie du circuit imprimé lorsque celui-ci est sous tension. Le non-respect de ces précautions peut provoquer des blessures graves, voire mortelles.
  • Do not exceed the controller electrical ratings. Exceeding controller electrical ratings can result in permanent damage to the controller and void any warranty.
  • Do not connect supply power to the controller before finishing wiring and checking all wiring connections. Short circuits or improperly connected wires can result in damage to the controller and void any warranty.
  • Use copper conductors only. Make all wiring in accordance with local, national, and regional regulations.

To wire the ZEC510, complete the following steps:

  1. Use the appropriate figures according to your particular configuration:
    • Figure 1 and Figure 2 if you are using staged outputs for the heating control
    • Figure 1 and Figure 2 if you are using incremental outputs for the heating control
    • Figure 1 and Figure 2 if you are using proportional outputs for the heating control
  2. Wire the network temperature sensor and CO2 sensor to the sensor bus on the ZEC510. See Sensor bus terminal block.
    Note: The CO2 sensors require a 24 VAC power supply in addition to wiring the +, -, COM, and SA PWR terminals. For more information, refer to the NS Series CO2 Network Sensors Installation Instructions (Part No. 24-10424-6).
  3. Wire the zone bus in a daisy-chain configuration. See Zone bus terminal block.
  4. Set the device address DIP switch to the appropriate address. See Setting the ZEC510 device address.
  5. If the ZEC510 is at the end or beginning of the line, set the EOL switch to the ON position.
  6. Connect the ZEC510 to 24 VAC, Class 2 power.