All of the installed sounders are fitted with flashing beacons which are activated first in the event of an alarm condition. This gives staff a specified amount of time to investigate the alarm after which the beacons can be deactivated or the sounder activated to initiate an evacuation of the premises. The sounders themselves have been limited in order to ensure that the alarms are heard but do not cause unnecessary distress.
Unwanted alarms are a serious problem for any premises but for care homes they are particularly problematic because of the logistics involved in getting infirm and disabled people to safety. Brian Vassallo comments:
“To minimise the possibility of an unwanted alarm we used Hochiki's inbuilt product technology to reduce alarm sensitivity thresholds in certain areas of Roseville such as the corridors. We also programmed the system so that the different sensitivity conditions for day and night are taken into account.”
Firetech also had to make sure that the fire detection system met the requirements stipulated in The Disability Discrimination Act (DDA), which makes it unlawful for building owners and service providers to treat disabled people less favourably for a reason related to their disability. In practice, this means that Roseville's call points can be easily reached and identified and that the fire detection system is able to guide residents of all abilities to safety.