Indicator lights and warnings,
·
Throughout normal operation the green light will remain illuminated.
·
60 minutes after switching on the AFU the amber light will illuminate
intermittently and the buzzer will beep for 10 seconds.
·
After 75 minutes (additional 15 minutes) the amber light will remain
illuminated and the buzzer will beep for 10 seconds.
·
In an alarm condition the red light will flash and the buzzer will beep.
This indicates either a low air flow or a low battery.
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