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Operating Instructions
0 sec.
Detector Alarm Verification
(Retard + Confirmation)
Alarm Ignored
Detector Goes Into Alarm
Different Detector Alarms
During First Detector's
Verification Period
4.21 Walktest
122
4.20.5 Alarm Verification
If alarm verification is selected, an addressable smoke detector's alarm is ignored for a
retard time of 13 seconds and the detector's alarm condition is automatically reset.
There will be no alarm indication at the FACP during the Retard period. A
confirmation period of 60 seconds follows, during which a subsequent alarm from the
same detector will cause the panel to immediately activate the appropriate outputs and
indicate the alarm condition at the FACP. If a different detector alarms any time during
the first detector's verification period, the panel will immediately activate all
appropriate outputs and indicate the alarm condition at the FACP. If no additional
detector alarms occur within 73 seconds of the first alarm (13 second retard plus 60
second confirmation), the timer resets and the panel is ready to verify any new detector
alarms which may occur.
13 sec.
RETARD
Control Panel Processes Alarm if Same Detector is Still in Alarm
Control Panel Immediately Processes Alarm
Note: Alarm Verification is available only for addressable smoke detectors, not
conventional smoke detectors.
Walktest is a feature which allows one person to test the fire alarm system. An audible
walktest will momentarily sound the Notification Appliance Circuits in the building
and store the walktest information in a file at the panel. A silent walktest will not sound
the NACs but will store the walktest information in a file which can be viewed at the
panel. Disabled NAC devices will not activate during walktest.
Alarm/Shorted Condition
When in audible Walktest, the panel responds to each new alarm and activates its
programmed control outputs for four seconds, if those outputs have been programmed
for silenceable activation. It also stores each alarm in the walktest history file which
can be sent to an optional printer. The stored display will be the same as if the device
actually activated except the colon (:) in the time stamp is replaced with an asterisk (*).
Open Condition
Addressable devices as well as all main circuit board NACs are monitored for fault
conditions during Walktest mode. When a new trouble condition occurs, the FACP will
activate all NACs and control modules programmed for Walktest, then shut them off
after eight seconds.
While in Walktest, the trouble relay is activated and the system Trouble LED flashes (as
in all of the Program and status change operations). The alarm relay is not activated.
CONFIRMATION (60 seconds)
Walktest
73 sec.
MS-9600 PN 51335:E1 2/14/08
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