DataSheet OPTIM201910 en GB

18 / 24 | Variable Air Volume Controllers
• Heating/Cooling/VAV simultaneaously with CO
2
control
Value with higher control difference becomes control value.
• Heating/VAV/Cooling
(reversed sequence)
Y3 output - VAV damper
Y3 cooling demand
CO
2
reduction demand
Comparator, maximum
(Y3 cooling demand, CO
2
reduction demand)
Output signal
100%
100% ... 0% 0% ... 48%
Controller output
0%
52% ... 100%
20% by default min. flow
at cool output for VAV control
Y1 Y2 Y3
CO
2
reduction
demand
100%
600 ppm by default
CO
2
level to start
open damper
CO
2
level
0%
800 ppm by default
CO
2
level when damper
fully open
20% by default min. flow
at cool output for VAV control
Y3
Neutral zone Neutral zone
Output signal
100%
100% ... 0% 0% ... 48%
Controller output
0%
52% ... 100%
20% by default min. flow
at cool output for VAV control
Y1 Y3 Y2
Neutral zone Neutral zone