System Sensor 2100AT - Manual (Page 2)

D200-69-00 2 I56-1145-05R
TAMPER SLOT
(DEPRESS TAB TO
REMOVE DETECTOR)
TAMPER RESISTANT TAB
(CUT OFF SMALL TAB TO
ACTIVATE TAMPER-RESIST
FEATURE)
ALIGNMENT
ARROWS
Figure 2. Surface mounting of 2100AT smoke detec-
tor on 3 1 /
2
-inch and 4-inch octagonal box:
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A78-2563-03
Figure 3. 2100AT smoke detector mounting bracket:
A78-2333-06
the detector’s status. If power is applied to the detector and
it is functioning normally in standby within the listed sensi-
tivity range, the status LED blinks every ten seconds. The
LED also latches on in alarm. If the LED stops blinking, the
unit should be removed for maintenance and inspection.
The detectors also include an output that allows optional
connection of the RA400Z Remote Annunciator.
Mounting
Each 2100AT detector is supplied with a mounting bracket
that permits the detector to be mounted:
1. To a single gang box, or
2. Directly to a 3-1/2 inch or 4 inch octagonal box, or
3. To a 4 inch square electrical box by using a plaster ring.
4. Directly to the ceiling using drywall anchors, if permit-
ted by local codes and/or the authority having jurisdic-
tion.
Tamper-resistant Feature
This detector includes a tamper-resistant feature that pre-
vents its removal from the bracket without the use of a tool.
To make the detector tamper-resistant, remove the smaller
tab by breaking it at the scribed line on the tamper resistant
tab on the detector mounting bracket (see Figure 3), then
install the detector. To remove the detector from the bracket
once it has been made tamper resistant, use a small screw-
driver to depress the tamper-resistant tab, located in the
slot on the mounting bracket, and turn the detector coun-
terclockwise.
Wiring Installation Guidelines
All wiring must be installed in compliance with the Na-
tional Electrical Code, applicable local codes, and any spe-
cial requirements of the local authority having jurisdiction.
Proper wire gauges should be used. The conductors used to
connect smoke detectors to control panels and accessory
devices should be color-coded to reduce the likelihood of
wiring errors. Improper connections can prevent a system
from responding properly in the event of a fire.
The screw terminal block accepts 14 – 22 gauge wire. For
best system performance, all wiring should be installed in
separate grounded conduit. Do not mix fire system wiring
in the same conduit as any other electrical wiring. Twisted
used before wiring the detector loops.
Before Installing
Please thoroughly read the System Sensor manual I56-407,
Guide for Proper Use of System Smoke Detectors, which pro-
vides detailed information on detector spacing, placement,
zoning, wiring, and special applications. Copies of this
manual are available at no charge from System Sensor.
NOTICE: This manual shall be left with the owner/user of
this equipment.
IMPORTANT: This detector must be tested and maintained
following NFPA 72 requirements. The detector should be
cleaned at least once a year.
General Description
Model 2100AT is a 2-wire photoelectronic smoke detectors
that uses a state-of-the-art optical sensing chamber. This
detector also provides restorable, 135˚F fixed-temperature
heat detection. The 2100AT heat-detection unit is integrated
with the photoelectronic sensor. This detector is designed
to provide open area protection and to be used with com-
patible UL-listed panels only.
In addition, a piezoelectric horn in each detector produces
an interrupted, 85 dBA tone when the individual detector
alarms or when the supply voltage polarity is reversed.
Installation of this detector is simplified by the use of a
mounting bracket and a plug-in screw terminal block that can
be prewired to the system, allowing the detector to be easily
installed or removed for cleaning. The detector’s sensitivity
can be tested in place using the MOD400R Test Module.
An LED on the detector provides a local visual indication of