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State
Pre-Alarm State
The pre-alarm state occurs when any automatic detector that is a member of a crossed-zoned
or counting-zone detection system issues an alarm report. The pre-alarm state for a property-
protection/mission-continuity system with waterless fire suppression typically refers to the
receipt of an alarm signal from a spot-type smoke detector or an HSSD. The pre-alarm state
described in Paragraph 3-2.5.7 dealt with essentially a warning signal from an automatic
detector that the fire signature at a specific location had exceeded a user-configurable, low-
level threshold value. That pre-alarm signal did not create an actual alarm.
The pre-alarm state discussed here should not be confused with the pre-alarm state
discussed in Paragraph 3-2.5.7.
The pre-alarm state must be annunciated by distinctive public-mode notification.
Pre-Release State
The pre-release state occurs when two automatic detectors (one detector from each of
the two crossed zones or any two detectors in a counting zone) issue an alarm report. The
discharge criterion for the waterless fire-suppression system is attained when the pre-
release state occurs. The pre-release state is also referred to as the countdown state
because it typically triggers a time-delay period that precedes the discharge of the
waterless fire-suppression system.
The pre-release state must be annunciated by public-mode notification different from the
pre-alarm state public notification mode.
Release State
The release state occurs when the waterless fire-suppression system discharges at the
conclusion of the time-delay period.
The release state can also be triggered without a time delay by a manual-release station.
It is also common practice to trigger a pre-action-sprinkler system concurrently with the
discharge of the waterless suppression system.
The release state must be annunciated by public-mode notification different from both the
pre-alarm-state and pre-release-state public notification modes.
Abort State
The abort state occurs when an abort switch is manually activated to interrupt or prevent
the start of the countdown timer whose expiration will trigger the discharge of the
waterless fire-suppression system.
P/N 06-236530-001
Table 3-7. Progressive Alarm States of a ARIES System
(Designed for Property Protection/Mission Continuity)
2. Occupant Notification/Building-Evacuation Alarm Events
An
occupant-notification/building-evacuation
installed as required by fire codes to warn the occupants of a building
to evacuate because of a fire. This system enters the alarm state
when devices such as an automatic detector, a manual-alarm station,
or a waterflow switch reports as an alarm event. The ARIES System
uses temporal-coded horns and strobes (or other method of non-
voice-messaging, public notification acceptable to the authority
having jurisdiction) to notify the occupants to evacuate the building.
An occupant-notification/building-evacuation system has two sub-
alarm states that are designed to delay the building-evacuation
signals or to prevent a transient, non-fire signature from activating
the building-evacuation signals. These two sub-alarm states are
Positive-Alarm
previously.
When Occurs
Sequence
and
3-111
system
Alarm
Verification,
is
usually
described
August 2013
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