Demand control ventilation (optional)
• You can proportionally reset the minimum damper flows based on an air quality setpoint when
you wire the zone CO
2
sensors to the boxes to detect the air quality in the zone.
• The reset of the damper minimum flows do not exceed the maximum value that you set. The
CO
2
sensor with the highest value determines the reset when you wire more than one CO
2
sensor to the boxes.
Configuring the NS sensors
Use the following diagrams and tables to address the NS sensors.
Figure 17: CO
2
net stat with terminals addressable
Table 11: CO
2
NS sensors with terminals addressable
A
Address switch
B
To next device on the sensor bus if required
C
From previous device on the sensor bus
Table 12: CO
2
NS sensor addresses
DIP switch settings
Available DIP switch
addresses
Switch 4
Switch 2
Switch 1
212
Off (open)
Off (open)
Off (open)
213
Off (open)
Off (open)
On (closed)
214
Off (open)
On (closed)
Off (open)
215
Off (open)
On (closed)
On (closed)
216
On (closed)
Off (open)
Off (open)
217
On (closed)
Off (open)
On (closed)
218
On (closed)
On (closed)
Off (open)
219
On (closed)
On (closed)
On (closed)
25
Verasys ZEC510 VAV Controllers Installation Guide
