use.
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All system circuits shall be electrically monitored for integrity including
the following:
a.
Initiating circuits.
b.
Evacuation alarm (notification appliance) circuits (including both
audible and visual notification appliances).
c.
Battery power supply (low and no voltage across the standby
battery terminals and open battery circuit).
d.
[Radio] [Master box] [Auxiliary transmitter] tripping circuits.
Provide [Class B] [Class A] initiating device circuits, and [Class B]
[Class A] notification appliance circuits as defined by NFPA 72. [For
Class A circuits, provide separate conduits for outgoing and return
(redundant) conductors as required by NFPA 72.] A ground fault condition
or single break in any other circuit shall cause operation of the system
trouble signals. Loss of AC power, abnormal AC voltage, a break in the
standby battery power circuit, or low battery voltage shall also cause
operation of system trouble signals. The abnormal position of any switch
in the control panel shall also cause operation of the system trouble
signals. Audible and visual equipment for supervision of the AC power
supply shall be energized from the auxiliary DC power supply and vice
versa. Trouble signals shall sound continuously until manually silenced or
the system has been restored to normal. [Electrical monitoring for
integrity of wiring external of control panel for mechanical equipment shut
down and magnetic door holding circuits is not required, provided a break
in the circuit will cause doors to close and mechanical equipment to
shutdown.]
[2.1.1.4
Walk-Test Mode
Provide system with walk-test mode to allow one person to test alarm and
supervisory features of initiating devices. Walk-test mode shall be
enabled from the control panel by authorized service personnel. Control
panel shall display a unique visual indication when system is in walk-test
mode. If testing ceases while in walk-test mode, after a preset delay
system shall automatically return to normal standby mode.
][2.1.1.5
Alarm Verification Feature
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NOTE: Consult with the EFD/EFA Fire Protection
Engineer before specifying an Alarm Verification
Feature (AVF). Currently, AVF is not compatible
with 4-wire open-area (spot-type) smoke detectors.
When AVF is specified, the 2-wire smoke detector
option must be included in the paragraph titled
"Open Area (Spot-Type) Smoke Detector." Do not
specify AVF for duct smoke detectors.
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System shall have a smoke detector alarm verification feature. Upon
activation of any area smoke detector, system shall institute an alarm
verification process prior to enabling of the alarm functions as specified
SECTION 13852N
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