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Chapter 2 Pre-installation considerations
22 BAS-APG001-EN
system, since a pull station is not necessarily activated in the zone that
contains the smoke or fire.
Sprinkler flow devices
Fire alarm system equipment may include two types of sprinkler flow
devices: sprinkler flow switches and tamper switches.
Sprinkler flow switches, installed in fire sprinkler lines, notify the fire
alarm control panel (FACP) of flow in the sprinkler lines. The FACP
transmits an alarm to the smoke control system. The smoke control
system may initiate automatic smoke control from the alarm. Sprinkler
zones must coincide with the zone layout of the building and the zoning of
the FACP.
Tamper switches are installed on manual shutoff valves in the fire
sprinkler system. The switches provide a supervisory alarm signal to the
fire alarm system if the shutoff valve closes. Alarms activated by tamper
switches must not initiate the automatic operation of the smoke control
system.
Fire alarm control panel
The FACP receives alarm signals. If the FACP receives an alarm, it
notifies the smoke control system of the alarm and the alarm location.
The zone layout of the FACP must match the zone layout of the building
to ensure that the FACP is capable of sending accurate signals to the
smoke control system. The mechanical and electrical consulting engineers
coordinate the building zone layout to the FACP layout to ensure a proper
interface.
Firefighter’s smoke control station
The firefighter’s smoke control station (FSCS) enables firefighters to take
manual control of the smoke control system. The FSCS must be located in
an easily accessible but secure location. The normal location is near the
FACP.
IMPORTANT
The FSCS must be listed by Underwriters Laboratories (UL) as suitable
for enabling firefighters to take manual control of the smoke control
system.
Commands from the FSCS control panel are the highest priority
commands in the system. They override automatic control of smoke
control system components.
The FSCS provides a graphic representation of the building. It shows
smoke control zones and associated smoke control mechanical equipment.
The panel includes: lights, an audible trouble LED, and manual switches.