![upward. The fan begins to “ride up” its constant-speed performance curve toward f, from the design operating point e, trying to balance with this new system resistance curve. As a result, the fan delivers a lower airflow at a higher static pressure.](/images/new-backgrounds/44207/44207103x1.webp)
g
Discharge Dampers
static pressure
sensor set point
discharge | surge |
|
damper | line |
|
SP loss | & |
|
|
| |
|
| % |
VAV system | ' | $ |
| ||
modulation |
|
|
curve |
|
|
design system resistance curve
airflow | g IM |
|
KKe
upward. The fan begins to “ride up” its constant-speed performance curve toward f, from the design operating point e, trying to balance with this new system resistance curve. As a result, the fan delivers a lower airflow at a higher static pressure.
The system
This method of control is essentially the same as “riding the fan curve,” except that the
caQ3caM6793O[ | :; |