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The Alarm memory is an important feature of the Alarm where even if the house is unoccupied during
an alarm condition it warns the homeowner that the Alarm has previously detected Fire or CO gas and
been in alarm. It is particularly useful in the case of CO leakages which may have occurred when the
owner is away from the property - for example, CO leaking from a faulty boiler operating on a timer.
The memory feature also helps identify the unit and event type which has previously triggered an
entire alarm system, which can also very helpful after the entire alarm system has gone into alarm
and then stopped, for no obvious reason.
Once the source Alarm has been identified, appropriate action can be taken e.g. In the case of a CO
alarm event in memory, investigate any potential sources of CO leaks, or in the case of a fire alarm
event in memory, investigate the cause of nuisance / false alarms by ensuring kitchen or bathroom
doors are kept closed to prevent very hot air or steam from cookers / showers reaching the heat sensor
on the Alarm, locate the Alarm further away from the source of steam or condensation, replace the
Alarm if it is thought to be defective or remove the unit in the short term.
The memory feature has two operation modes:
- memory indication for 24 hour period after alarm.
- memory recall on demand
24-hour memory indicators: For 24 hours after alarming, the red LED alarm indicator will flash at
different rates every 48 seconds (approx) depending on the alarm event type (Fire or CO) and in the
case of CO, on the level detected - see Table C.
Memory recall on demand: To review the memory status at any time, press and hold the test button,
the red LED alarm indicator will flash in accordance to Table C to convey the alarm event in memory,
if any.
Reset Memory: Hold down the test button for at least 20 seconds. Cover the horn with a cloth to
muffle the alarm during this time. Clearing of the memory is indicated by a 1-second-long flash of the
red LED alarm indicator. Please note that the alarm memory will also be reset if the Alarm is removed
from its mounting plate (switched off).
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