27ECB-VAVS Preloaded Applications
Configuring the Flow Setpoints
The following table describes the airflow setpoint parameters that can be configured.
Figure7: Flow Setpoints
Parameter Description
Min Cool Flow Setpoint Minimum cooling flow setpoint
Max Cool Flow Setpoint Maximum cooling flow setpoint
Min Heat Flow Setpoint Minimum flow setpoint when duct heater is active
Max Heat Flow Setpoint Maximum flow setpoint during heating mode
Configuring the Calibration Points
From the
Calibration Points
table, the VAV flow calibration and flow setpoint can be configured.
Figure8: Calibration Points Table
Parameter Description
Flow / Calibrate
The actual flow in cfm. When the value is sent to the VAV controller, the controller will
automatically calibrate its flow reading and readjust the K-Factor.
Flow Setpoint The actual flow setpoint.
Configuring the Damper
From the
Damper Configuration
table, the adjustment of the damper direction and damper initialization
can be performed.
Figure9: Damper Configuration
Parameter Description
Damper Direction
Used to specify the direction (clockwise or counter clockwise) in which the actuator
rotates to open the damper.
Damper Initialize
If the mechanical stops on the actuator have been moved to limit the range of movement
of the damper, then the damper must be initialized. Setting the Damper Initialize
parameter to True resets the damper position and calculates the total number of steps
between the stops. To initialize the damper, click the Edit button. The status will change
from Normal to Initializing during the initialization process.
The actuator mechanical stops should be moved only to limit damper movement from going under 0% or over
100%.
Using the dc gfxApplications