6.0 Events / actions
Normal airflow
•
Airflow above alarm level ( eg > 80 fpm )
•
Green LED on
Low airflow
•
Airflow below alarm level for longer than the low air delay time ( 5 secs)
•
Red LED on ( Not flashing )
•
Audible alarm sounds ( ‘Beep’ on/off every 1 sec ) -- can be muted via Enter
pushbutton
•
Low air relay R1 operates.
Reset : -- when airflow rises above Low air level for longer than the low air to
safe air delay time ( 2 secs ) the Low air alarm resets automatically
Sash High
•
When the input configured as Sash High is activated ( Micro switch or
Proximity switch )
•
Red LED on ( Flashing )
•
Audible alarm sounds ( ‘Beep’ on/off every 1 sec )
•
Audible can be muted via Enter pushbutton -- this silences the alarm and
initiates a repeat timer ( factory set to 5 mins ) After the delay time the alarm
re-sounds ( and can be re-muted). During this time the Red LED flashes
on / off.
Reset: -- when Sash lowered to safe position and input de-activated.
Night set-back
•
When input configured as Night set-back is activated
•
Green LED on ( Flashing)
•
Audible
alarm
muted
Airflow Sensor Error
•
The connection and each element of the airflow sensor are monitored at all
times. In the event of a problem with the sensor the audible alarm will sound
using a different and distinctive tone best described as ‘ a modulating siren
effect’
•
The audible alarm can only be silenced by switching the power to the unit off.
8
