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Alarm Types
15
In case of a fire, analogue detectors (sensors), conventional smoke and/or heat detectors,
manual call points and programmable inputs can activate fire alarm
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 time and an
investigation time. The analogue detectors can also activate 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 used to activate outputs, based on smoke detected by a smoke detector,
without activating a fire alarm in the system. This alarm type can be used in AS1668 fan
control and other applications that require a non-latching / non-brigade call alarm.
LAA alarm
annunciation function and normally used to manually control the brigade call alarms. If the
LAA 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) 4400 or 4401 and sounder base 3379. During the Acknowledgement time and the
Investigation time respectively, there will be an indication in the FDCIE display.
Acknowledged and Isolated alarms are fire alarm functions used only in only New
Zealand convention.
Regarding the different alarm types, etc., see the following chapters.
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, if required 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. Any 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. 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.
Any programmable input can also be used to activate a pre-warning, e.g. for a high
sensitivity smoke detection system. Aspirating smoke detector programmed for detection
type "And with pre-warning" will activate a pre-warning for "alarm" from one detection area
only.
See "Help" in EBLWin to access the Planning instructions of the system.
In case of a pre-warning, the following will occur:
The buzzer in the FDCIE sounds 0.8 sec. each 5th sec. (0.8 / 5 sec.).
•
•
Outputs programmed for pre-warning are activated.
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).
In the New Zealand convention only, a Fire alarm (ALARM) can be "changed" to an Acknowledged alarm
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(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 operates similar to the discontinued Alarm Acknowledgement Module AAM.
(Local Alarm Acknowledgement), the function is similar to the alert
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Operation Manual
FT1020G3 Rev 2.10.4
28
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