Bac-8001 draft222_25, Setting airflow setpoints, Setting the vav terminal unit parameters – Titus Alpha BAC-8001/BAC-8201 Cooling Only User Manual
Page 21: Balancing airflow
BAC-8001 and BAC-8201 VAV Controllers
Setting up VAV controllers
Setting airflow setpoints
21
Setting airflow
setpoints
The airflow setpoints are limits for VAV unit operation. All values are entered by
a controls technician.
Minimum and maximum cooling airflow Sets the airflow limits through the VAV
unit when in the cooling mode.
Minimum and maximum heating airflow Sets the airflow limits through the VAV
unit when in the heating mode.
Setting the VAV
terminal unit
parameters
Terminal unit parameters set basic operating parameters and enable options
such as reheat and series or parallel fan operation.
Reheat Not available on models BAC-8001 or BAC-8201.
Damper direction to close Defines which direction the damper will turn to
decrease airflow.
CCW
—The actuator turns counterclockwise to close the damper.
CW
—The actuator turns clockwise to close the damper.
Primary duct K-factor A property of the specific VAV unit and airflow sensor to
which the primary controller is attached. This constant is supplied by the VAV
unit manufacturer.
Fan operation Not available on models BAC-8001 or BAC-8201.
Balancing airflow
An airflow balancing program is included in BAC-8000 series controllers. See the
manual STE-8000 and STE-8201 Sensor Installation Guide for balancing
instructions.
Table 3-2 Airflow setpoints
Object Description
Name
Defaults
AV13
Min Cooling Airflow
MIN COOL FLOW
0 CFM
AV14
Max Cooling Airflow
MAX COOL FLOW
400 CFM
AV15
Min Heating Airflow
MIN HEAT FLOW
0 CFM
AV16
Max Heating Airflow
MAX HEAT FLOW
400 CFM