All systems comprise of the following components :-
1 – AFA 500 Alarm unit,
1 – AC power supply
If the Sash Alarm System option is ordered there will also be a sash micro switch
or proximity switch.
Operator Features
--- the alarm has the following operator features :-
Normal Airflow - Green LED (
Not flashing
)
will be displayed if the airflow is
greater than the Low air alarm point.
Low Airflow - Red LED (
Not flashing
)
will be displayed if the airflow is lower
than the Low air alarm point.
Sash High
-
Red LED
(Flashing
)
will be displayed when the Sash is raised
above the max safe working opening.
Audible Alarm
-- the Audible alarm will sound ( can be muted ) in the Air Low
and the Sash High alarm condition
Night Setback
-- when the Night Setback input is activated the Audible alarm
will be muted and the
Green LED will flash on/off
ENTER
--- the alarm has an Enter button -- this is multi-functional as follows :-
Press
Enter
momentarily when Low Air alarm is sounding will mute
the alarm
Press
Enter
momentarily when Sash High alarm is sounding will
mute the alarm and initiate a repeat timer that will re-sound the alarm
if the Sash is not lowered to a safe position before the end of the time
period
Press
Enter
for 5 secs will gain access to
Calibration
mode
SET
-- used during the airflow Calibration of the alarm
5
