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These fire protection devices require correct wiring
to function. It is the responsibility of the purchaser
to provide qualified correct wiring installation.
SARGENT accepts no responsibility for incorrect
wiring. Devices wired incorrectly may be damaged
and this is not covered under warranty.
Life safety devices including door release devices
require correct positioning and appropriate
selection for the required task. It is the
responsibility of the purchaser to select
appropriate hardware and provide professional
installation. It is the responsibility of the purchaser
to insure that NFPA and other applicable fire
codes are met. Door release devices function
properly only if the door is free to close.
SARGENT accepts no responsibility for incorrect
installation of its equipment.
Smoke detectors will not work without power. AC
or DC powered smoke detectors will not work if
the power supply is cut off for any reason.
All high voltage wiring should be undertaken by a
qualified professional licensed electrician. It is the
responsibility of the purchaser to insure that
installation meets all applicable local and national
electrical codes.
Smoke detectors will not sense fires which start
where smoke does not reach the detectors.
Smoke from fires in chimneys, in walls, on roofs or
on the other side of closed doors may not reach
the smoke detector and alarm it.
Note: Revision "D" or lower* of the Smoke Detector on the 12- Fire Guard have momentary contact closure of the alarm output pins
1 and 2 when incoming power is applied or removed from the Fire Guard unit. Conventional Fire Alarm Control Panels (FACP's) may
not have circuitry to compensate for this momentary short of .5 seconds or less across pins 1 and 2 and may detect a fault, while
addressable FACP's have the necessary circuitry to compensate for this. For FACP's that cannot ignore a .5 second closure during
a power cycle, do not use the 12- Fire Guard (smoke detector) products. Revisions "E" and above will not have this momentary
change of state for relay contacts 1 and 2. So any FACP can be used. Contact SARGENT Technical Support for more details.
*Revisions are located on the 12- Smoke Detector label
WARNING
A detector may not detect a fire developing on
another level of a building. For this reason,
detectors should be located on every level of a
building.
Smoke detectors have sensing limitations.
Photoelectric detectors sense smoldering fires
better than flaming fires. Ionization detectors offer
a broad range of fire-sensing capability, but they
are better at detecting fast, flaming fires than slow
smoldering fires. Because fires develop in different
ways, and are often unpredictable in their growth,
neither type of detector is always best, and a
given detector may not always provide warning of
a fire. In general, detectors cannot be expected to
provide warnings for fires resulting from
inadequate fire protection practices, violent
explosions, escaping gas, improper storage of
flammable liquids like cleaning solvents, other
safety hazards, or arson. Smoke detectors used in
high air velocity conditions may fail to alarm due
to dilution of smoke densities created by such
frequent and rapid air exchanges. Additionally,
high air velocity environments may create
increased dust contamination, demanding more
frequent maintenance.
Smoke detectors do not last forever. Even though
detectors are made to last over 10 years, these
components could fail at any time. Therefore, test
your smoke detector system per NFPA 72E at
least semi-annually. Clean and take care of your
smoke detectors regularly. Taking care of the fire
detection system you have installed will
measurably reduce your liability risks.
Copyright © 2008 SARGENT Manufacturing. All rights reserved.
Reproduction in whole or in part without the express written
permission of SARGENT Manufacturing is prohibited.
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