DataSheet OPTIM201910 en GB

Variable Air Volume Controllers | 3 / 24
Master (Supply Air) VAV Controller Setup
V
min
adjustable between 0 and V
nom
V
max
adjustable between V
min
and V
nom
. Lowest possible adjustment is 20% of V
nom
.
Slave (Extract Air) VAV Controller Setup
V
min
adjusted to 0, shall not be changed.
V
max
adjusted equal V
nom
, shall not be changed.
Setpoint/Feedback Signal and Air Flow Volume Calculation for VAV Controller
U
C
(V) =
q - V
min
· 10
V
max
- V
min
q =
U (V)
· V
nom
10
U
c
: Air ow volume setpoint signal value (range DC 0 V … 10 V)
q: Air ow volume
V
min
: Minimum adjusted air ow volume (lower limit of control range)
V
max
: Maximum adjusted air ow volume (upper limit of control range)
U: Measured air ow volume feedback signal value (range DC 0 … 10 V)
V
nom
: Nominal air ow volume calibrated in factory – not adjustable.
U
C
(V)
q (m
3
/h)
V
max
0 10
Setpoint, U
C
: 0 V ... 10 V
V
min
q (m
3
/h)
U (V)
10
0 V
nom
Feedback, U: 0 V ... 10 V