TEL AFA4000/E, Installation And Operating Manual

Page: 31 / 210

AFA4000/E VAV Airflow Controller / p.31
Function Description
Mains Fail
(Optional extra feature)
When the input configured as Mains Fail is activated:
•
Red Alarm LED Halo illuminated
•
Mains Fail displays
•
Audible alarm sounds
•
Audible can be muted by pressing the Mute pushbutton. This
silences the alarm (when configured)
Note: Not for use with the Relay Interface Unit.
Personnel Sensor
(Optional extra feature)
When the input configured as Personnel Sensor is activated:
•
VAV Dual Set Point is active:
Occupied = High Set Point;
Unoccupied = Low Set Point
Note: When the Low Set Point is active, the Reduced Low Air and
Warning Air Alarms are active.
Fan Stop When the input configured as Fan Stop is activated:
•
Off displays
•
Red LED Halo illuminated
•
Audible alarm muted
When the input configured as Fan Stop is de-activated:
•
Start Up Timer displays
•
Audible alarm and relays inhibited until Start up time has elapsed
Note: Used if the AFA4000 is a Slave unit with a common fan.
Remote master On/Off signal is used
Mute When the input configured as Mute is activated:
•
Audible alarm muted
•
Mute Icon shown on display
Note: The Mute function disables the Mute pushbutton so that any
audible alarm can only be muted using the input, for example
remote key switch