TEL AFA4000/2, Installation And Operating Manual

Page: 54 / 177

AFA4000/2 Airflow Monitor / p.54
5.5 Start up
5.5.1 AFA4000/2
The AFA4000/2 must be field-calibrated once the room air supply and exhaust is
proportionally balanced.
When the unit is powered up, the following sequence of events occurs:
The alarm performs a self-test of its functions and audible alarm which takes
approximately 3 seconds. At the end of the delay, the unit will do one of two things:
When the Airflow monitor has been calibrated, the unit enters normal operating mode.
The monitor displays airflow velocity, LEDs and the audible alarm is enabled.
If the Airflow monitor has not been calibrated, the unit displays the message Requires set
up, press Mute to continue .
Follow the instructions in the Calibration section (section 7.1).
5.5.2 AFA4000/2/AS
The AFA4000/2/AS must be field-calibrated once the room air supply and exhaust is
proportionally balanced.
When the unit is powered up, the following sequence of events occurs:
1. The alarm performs a self-test of its functions and audible alarm which takes
approximately 3 seconds.
2. At the end of the delay, the unit will do one of five things:
•
When the Airflow monitor has been calibrated, the unit enters normal operating
mode. The monitor displays airflow velocity, LEDs and the audible alarm is enabled.
• When the Airflow monitor has not been calibrated, the unit displays the message
Requires set up, press
Mute to continue.
•
When the Auto Sash Controller has been calibrated, the unit enters normal
operating mode. The Controller displays status and alarms in the status window.
•
When the Auto Sash Controller is connected and has not been calibrated, the
status window displays the message Auto Sash Not Configured.