TEL AFA4000/E - Page 35

AFA4000/E VAV Airflow Controller / p.35
3.8.3 Auxiliary components
The following auxiliary components are available for the AFA4000/E airflow monitor:
Component
Function
Sash High Proximity Switch
Used for Sash High Alarm
Sash High Micro Switch
Used for Sash High Alarm
Sash Position Sensor (sprung
potentiometer)
Used for Volumetric Output and Sash High Alarm
Personnel Sensor
Passive Infra-Red sensor. Used for Dual Set Point Control
and Close Sash Alarm
Mains Fail Battery Unit
Used for Mains Fail Alarm (inverter control type only)
Volume Pressure Sensor
Used for Volumetric Output using a separate venturi
device or orifice plate type restrictor
Temperature Sensor
Used for Temperature display and alarms