AFA4000/E VAV Airflow Controller / p.97
6.10 Start up
Make sure the Auto Sash Controller is installed before attempting to calibrate the controller.
When the unit is powered up, the following events occur:
1. The alarm performs a self-test of its functions, LEDs and audible alarm, which takes
approximately 3 seconds. All inputs and outputs are deactivated during the self-test.
2. At the end of the delay, the unit will do one of two things:
• When the controller has been calibrated, the unit enters normal operating mode (Run).
The monitor displays the current status or alarm condition.
• If the Airflow monitor has not been calibrated, the unit displays the messages Sash drive
inhibited, if the tilt switch input is open, or Auto Sash Not Configured, if the tilt switch is
closed.
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