Operation Manual
FT1020G3 Rev 2.4
48
15 Alarm Types
In case of a fire, analogue detectors (sensors), conventional smoke and/or heat detectors,
manual call points and programmable inputs can activate fire alarm.
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A fire alarm could be an Alert Annunciation alarm, i.e. the activation of the routing
equipment (Fire Brigade TX) is delayed during an acknowledgement and investigation
time. The analogue detectors can also activate two other types of "alarm", i.e. Pre-warning
and Heavy smoke alarm / Heavy heat alarm. "Two unit dependent" addressable alarm
points (normally only smoke detectors) and "2-zone dependent" zones, can activate a Co-
incidence alarm.
Quiet alarm is an alarm type that can be used for AS1668 fan control and other
applications that require a non-latching / non-brigade call alarm.
LAAF alarm
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(Local Alarm Acknowledgement Facility) is similar to the alert annunciation
function and normally used to control the brigade call alarms. If the LAAF function is used,
during the acknowledgment and the investigation periods, there will be an indication in the
FDCIE display and the Fire Brigade TX will be delayed. The LAAF function requires a Local
Alarm Acknowledgement Unit (LAAU 4445), a smoke detector (sensor) 4300/4400 or
4301/4401 and sounder base 3379. During the Acknowledgement Period and the
Investigation Period respectively, there will be an indication in the FDCIE display.
Acknowledged and Isolated alarm are fire alarm functions used only in New Zealand
convention.
Regarding the different alarm types, etc., see the following chapters.
Note: In the following chapters, all different alarm types are described. The illustrations
in this document show the essential information and may not look exactly as shown in
the display.
15.1 Pre-warning
Activation of Pre-warning is an option that has to be enabled via EBLWin for the Control
Unit.
Note: Pre-warnings activated in any Control Unit in the system will always be presented
in all Control Units and all programmable outputs in the system (with trigger condition
pre-warning) will be activated (if not disabled).
An analogue detector generates a pre-warning at a lower alarm level than the fire alarm
level.
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Pre-warning can be used when an early warning and/or an early action is required
(e.g. a "soft" computer shut down). Normal alarm devices (output type "Alarm devices"),
routing equipment, etc. will not be activated.
In case of a pre-warning, the following will occur:
• The buzzer in the FDCIE sounds 0.8 sec. each 5
th
sec. (0.8 / 5 sec.).
• Outputs programmed for pre-warning are activated.
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• In the FDCIE display, a presentation number (zone/address) is shown (for the first
pre-warning).
• In the FDCIE display, a user definable text message (= the alarm text for fire alarm)
is shown (if programmed).
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In the New Zealand convention only, a Fire alarm (ALARM) can be "changed" to an Acknowledged alarm (ACKNOWELDGED)
or an isolated alarm (ISOLATED).
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LAAF is the Local Alarm Facility as per the previous model AAF (Alarm Acknowledgement Facility). Local Alarm
Acknowledgement Unit (new unit) is similar to the discontinued Alarm Acknowledgement Module AAM.
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See FT1020G3 Technical Manual. Any programmable input can also be used to activate a pre-warning, e.g. for a High
Sensitivity Smoke Detector system.
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Outputs programmed for General pre-warning and outputs programmed for the activated pre-warning(s).
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