engraved laminated phenolic resin nameplate. Lettering on the nameplate
shall say "Fire Alarm Control Panel" and shall not be less than one inch
high. Provide prominent rigid plastic or metal identification plates for
lamps, circuits, meters, fuses, and switches. The cabinet shall be
provided in a sturdy steel housing, complete with back box, hinged steel
door with cylinder lock, and surface mounting provisions.
2.2.11.2
Control Modules
Provide power and control modules to perform all functions of the FACP.
Provide audible signals to indicate any alarm, supervisory, or trouble
condition. The alarm signals shall be different from the trouble signal.
Connect circuit conductors entering or leaving the panel to screw-type
terminals with each terminal marked for identification. Locate diodes and
relays, if any, on screw terminals in the FACP. Circuits operating at 24
VDC shall not operate at less than 21.6 volts. Circuits operating at any
other voltage shall not have a voltage drop exceeding 10 percent of nominal
voltage.
2.2.11.3
Silencing Switches
a.
Alarm Silencing Switch: Provide an alarm silencing switch at the
FACP which shall silence the audible signal but not affect the
visual alarm indicator. This switch shall be overridden upon
activation of a subsequent alarm.
b.
Supervisory/Trouble Silencing Switch: Provide supervisory and
trouble silencing switch which shall silence the audible trouble
and supervisory signal, but not extinguish the visual indicator.
This switch shall be overridden upon activation of a subsequent
alarm, supervision, or trouble condition.
2.2.11.4
Non-Interfering
Power and supervise each circuit such that a signal from one device does
not prevent the receipt of signals from any other device. Circuits shall
be manually resettable by switch from the FACP after the initiating device
or devices have been restored to normal.
[2.2.11.5
Fire Alarm Voice Message
**************************************************************************
NOTE: Use the proper bracketed item depending upon
whether the fire alarm system is to cause total
evacuation upon an alarm.
**************************************************************************
A fire alarm shall activate notification appliance circuits. Textual
audible appliances shall produce a slow whoop tone for three cycles
followed by a voice message which is repeated until the control panel is
reset or silenced. Automatic messages shall be broadcast through speakers
on appropriate floors, but not in stairs or elevator cabs. The visual
strobes and audible message shall automatically be broadcast on the floor
of fire alarm origin, [the floor] [two floors] immediately above the floor
of fire alarm origin, and the floor immediately below the floor of fire
alarm origin. A live voice message shall override the automatic audible
output through use of a microphone input at the control panel. When using
the microphone, live messages shall be broadcast through speakers in
stairs, in elevator cabs, and throughout a selected floor or floors. The
SECTION 13855N
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