System Sensor 2400AT and 2400AIT Direct Wire - Manual (Page 4)

D400-03-00 4 I56-287-02
© System Sensor 1996
The sounder in this detector will not operate if the power is cut off for any
reason.
The sounder may not be heard. The loudness of the sounder meets or
exceeds the current standards. However, the sounder may not alert a
sound sleeper or one who has recently used drugs or has been drinking
alcoholic beverages. This sounder may not be heard if it is placed in an
area which is separated by a closed door, or if it is located on a different
floor from the person in a hazardous situation, or if it is placed too far
away to be heard over the ambient noise such as traffic, air conditioners,
machinery, or musical appliances that may prevent alert persons from
hearing the alarm.
The sounder may not be heard by persons who are hearing impaired.
In this case, a visual indicator shall also be used.
This smoke detector used with this base is designed to activate and ini-
tiate emergency action, but will do so only when used in conjunction with
an authorized fire alarm system. This detector must be installed in accor-
dance with NFPA standard 72.
Smoke detectors will not work without power. AC or DC powered
smoke detectors will not work if the power supply is cut off .
Smoke detectors will not sense fires which start where smoke does not
reach the detectors. Smoldering fires typically do not generate a lot of
heat which is needed to drive smoke up to the ceiling where the smoke
detector is usually located. For this reason, there may be large delays in
detecting a smoldering fire with either an ionization-type detector or a
photoelectronic-type detector. Either one of them may alarm only after
flaming has initiated, which will generate the heat needed to drive the
smoke to the ceiling.
Smoke from fires in chimneys, in walls, on roofs, or on the other side of a
closed door may not reach the smoke detector and alarm it. A detector cannot quickly detect, or sense at all, a fire developing on another level of
a building. For this reason, detectors shall be located on every level and
in every bedroom within a building.
Smoke detectors have sensing limitations, too. Ionization detectors and
photoelectronic detectors are required to pass fire tests of the flaming and
smoldering types. This is to ensure that both can detect a wide range of
fires. Ionization detectors offer a broad range of fire-sensing capability, but
they are somewhat better at detecting fast-flaming fires than slow-smol-
dering fires. Photoelectronic detectors sense smoldering fires better than
flaming fires, which have little, if any, visible smoke. 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
early warning of a specific type of fire.
In general, detectors cannot be expected to provide warnings for fires re-
sulting from inadequate fire protection practices, violent explosions, es-
caping gases that ignite, improper storage of flammable liquids like
cleaning solvents that ignite, other similar safety hazards, arson, smoking
in bed, children playing with matches or lighters, etc. Smoke detectors
used in high air velocity conditions may have a delay in alarm due to dilu-
tion of smoke densities created by frequent and rapid air exchanges. Addi-
tionally, high air velocity environments may create increased dust
contamination, demanding more frequent detector maintenance.
Smoke detectors cannot last forever. Smoke detectors contain electronic
parts. Even though detectors are made to last over 10 years, any part can
fail at any time. Therefore, smoke detectors shall be replaced after being in
service for 10 years. The smoke detector system that this detector is used
in must be tested regularly per NFPA 72. This smoke detector should be
cleaned regularly per NFPA 72 or at least once a year.
WARNING
The Limitations of Property Protection Smoke Detectors and Sounders
wise skip to step 6.
3. Remove the screen by pulling it straight out. Vacuum the
inside.
4. Clean the vaned chamber piece by vacuuming out dust
and particles.
5. To replace the screen, orient it so that the arrow on top
aligns with the field test socket on the base of the detec-
tor. Carefully push the screen onto the base making sure
it fits tightly to the chamber.
6. Replace the cover by gently rotating it clockwise until it
locks in place.
Figure 6:
Three-Year Limited Warranty
System Sensor warrants its enclosed smoke detector to be free from de-
fects in materials and workmanship under normal use and service for a
period of three years from date of manufacture. System Sensor makes no
other express warranty for this smoke detector. No agent, representative,
dealer, or employee of the Company has the authority to increase or alter
the obligations or limitations of this Warranty. The Company’s obligation
of this Warranty shall be limited to the repair or replacement of any part of
the smoke detector which is found to be defective in materials or work-
manship under normal use and service during the three year period com-
mencing with the date of manufacture. After phoning System Sensor’s toll
free number 800-SENSOR2 (736-7672) for a Return Authorization number,
send defective units postage prepaid to: System Sensor, Repair Depart- ment, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174. Please
include a note describing the malfunction and suspected cause of failure.
The Company shall not be obligated to repair or replace units which are
found to be defective because of damage, unreasonable use, modifica-
tions, or alterations occurring after the date of manufacture. In no case
shall the Company be liable for any consequential or incidental damages
for breach of this or any other Warranty, expressed or implied whatsoever,
even if the loss or damage is caused by the Company’s negligence or fault.
Some states do not allow the exclusion or limitation of incidental or conse-
quential damages, so the above limitation or exclusion may not apply to
you. This Warranty gives you specific legal rights, and you may also have
other rights which vary from state to state.
A78-1409-00
REMOVABLE COVER
TEST SLOT
CLEANABLE SCREEN
(P/N RS24T)
REMOVAL
SLOT