Tecnoalarm Tecnofire TFA2-596, Руководство по установке, Страница: 34 / 64

TFA2-596 - TFA4-1192
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8-2 - Fire zones
Single-knock fi re zone
The alarm of a single device (single-knock) is suf fi cient to generate the alarm of the zone and initiate the alarm procedure
programmed for the zone and the evacuation siren. If a device generates a prealarm, the zone will switch to prealarm state.
Double-knock fi re zone
The prealarm or alarm of a single device generates a prealarm in the zone, the intervention of a second device causes an alarm in
the zone. However, if the
fi rst device is a manual call point, the double-knock zone immediately issues an alarm.
Double-knock zone prealarm timeout
It is possible to set the maximum prealarm time for the double-knock zones.
If a zone in prealarm state at the end of the set timeout has switched to stand-by state, the prealarm is automatically cleared.
If, however, the prealarm condition persists, the zone remains in prealarm state until the detector switches to stand-by or another
detector of the zone switches to alarm. The timeout can be set by steps of 5 minutes from 0 (in
fi nite) to 60 minutes.
N.B. The Behavior after prealarm setting can have an effect on the alarm release.
Prealarm Alarm
No alarm
Alarm Alarm
No alarm
Prealarm Alarm No alarm
Prealarm Alarm No alarm
SINGLE-KNOCK FIRE ZONE - ALARM TRIGGERING
The zone is in stand-by state
With one device in alarm state
the zone switches to alarm
One more device in alarm state triggers another alarm noti fi cation
SINGLE-KNOCK FIRE ZONE - PREALARM TRIGGERING
The zone is in stand-by state
With one device in prealarm state
the zone switches to prealarm
One more device in prealarm state
switches the zone to alarm and
triggers the alarm noti fi cations
DOUBLE-KNOCK FIRE ZONE - PREALARM TRIGGERING
The zone is in stand-by state
With one device in prealarm state
the zone switches to prealarm
One more device in prealarm state
switches the zone to alarm and
triggers the alarm noti fi cations
DOUBLE-KNOCK FIRE ZONE - ALARM TRIGGERING
The zone is in stand-by state
With one device in alarm state
the zone switches to prealarm
One more device in alarm state switches the zone to alarm
and triggers the alarm noti fi cations