33
Maximum Dust Compensation (Multi-Sensor and Smoke Alarms only)
The Alarm monitors the dust contamination build-up in the optical smoke chamber and then
compensates for it, reducing the possibility of false alarms.
If however, the Alarm gives 4 short chirps with 4 yellow LED flashes when the button is pressed,
it indicates that the Alarm has reached the maximum dust compensation. When this occurs, the
Alarm will continue to operate as normal, but there is an increased risk of false alarms caused by
dust contamination. If contamination has occurred quickly (e.g. due to dust from carpets being
replaced) and the Alarms are sounding, the dust compensation may take some hours to operate. In
this situation, remove the Alarm from the mounting plate, leave it disconnected for 5 minutes, then
reinstall the unit (the air must be clean i.e., dust and smoke free). The dust compensation will now
operate quickly, within 60 seconds.
Temporarily Silencing Fault Chirps
If the button is pressed on an Alarm that is giving fault chirps and yellow LED flashes, the Alarm will
be silenced (Fault Hush Mode) for a period of 12 hours. However, the Alarm will sound / function
as normal within that period should it detect fire (except if the fault detected is a sensor or piezo
fault). The yellow LED fault indicator will continue to flash as before to indicate that the fault is still
present. The fault chirps will return 12 hours later. A low battery fault and an end of life fault can
be hushed as often as required.
A sensor or piezo fault condition can only be hushed once.
To Next Page
Loading...
Need help?
General
