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STRYKER VAV USER GUIDE
13 62-2030—01
7. CONFIGURING THE FLOW SETPOINTS
Use this page to configure flow setpoints for an Stryker VAV device and other parameters that affect flow/damper control.
7.1Procedure
To set flow setpoints:
7.2 Fields
NOTE: Flow setpoints are enabled only if Pressure Type
is selected as Pressure Independent.
Step Action
1 From the left pane of the VAV Configuration Wizard, select Flow Setpoints.
2 Enter information in the available fields.
3 Click Undo All to revert to the last saved settings.
4 Click Next to display the Control Parameters page.
5 Click Finish to save settings to station.
Table 8. Flow Setpoint Fields.
Name Definition
Use Special SI Units Enable this if you want to configure flow setpoints in m3/hr. This option is available only when the
workbench is configured to use metric unit system.
Setpoints
Maximum Flow Setpoint Maximum cooling flow setpoint value.
Minimum Flow Setpoint Minimum cooling flow setpoint during the occupied mode.
Standby Flow Setpoint Minimum flow setpoint during the standby mode.
Maximum Reheat Setpoint Maximum reheat flow setpoint.
Note that the flow setpoints values must be configured in the order of
Minimum Flow Setpoint < Reheat Setpoint < Maximum Flow Setpoint.
Minimum Cooling Flow
Setpoint During
Unoccupied Mode
Minimum cooling flow setpoint during unoccupied mode.
Fan Flow Setpoint Parallel fan starts after the threshold value. During the occupied mode, the fan is started when the
primary air as a percent of max flow is less than or equal to Fan Flow percent.
Duct Area
Diameter The area of the cooling duct where the flow sensor is installed. Select Custom_Area if you want to
enter a specific value in the Area field. Duct area is calculated automatically if you select standard
duct sizes like 2_In_Round.
Area Values for duct area in square feet. This value is calculated automatically if you select a different
diameter.
Room CO2 Level Settings (used for indoor air quality ventilation control)
Low Level Low Room CO2 level associated with the minimum flow setpoint.
High Level High Room CO2 level associated with the highest flow reset. When room CO2 levels vary between
the configured low and high CO2 level, the minimum air flow is adjusted proportionally.
Fraction of Maximum Air
Flow
This is the fraction of maximum airflow added to the minimum airflow setpoint while coordinating
CO2 with the effective airflow setpoint.
Set this value to zero to disable CO2 ventilation.
Others
Fresh Air Required This is the amount of fresh air required for this zone during scheduled occupancy. This option is
enabled only if Pressure Independent type is configured.