INSTALLATION AND MAINTENANCE INSTRUCTIONS
2151 Low Profile
Photoelectronic Plug-in
Smoke Detector
Specifications
Size
Height:
Diameter:
Weight:
Operating Temperature Range:
Operating Humidity Range:
Latching Alarm:
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 from System Sensor.
NOTICE: This manual should be left with the owner/user
of this equipment.
IMPORTANT: The detector used with this base must be
tested and maintained regularly following NFPA 72 require-
ments. The detector used with this base should be cleaned
at least once a year.
General Description
The 2151 low-profile photoelectronic detector uses a state-
of-the-art optical sensing chamber. This detector is de-
signed to provide open area protection and to be used with
compatible UL listed control panels only. The capability of
plugging this detector into a variety of special bases makes
it more versatile than equivalent direct-wired models.
Two LEDs on each detector provide local 360° visible alarm
indication. They flash every ten seconds indicating that
power is applied and the detector is working properly. The
LEDs latch on in alarm. Remote LED annunciator capability
is standard and may be implemented through an optional
accessory RA400Z. The alarm can be reset only by a mo-
mentary power interruption. This detector may be tested by
activating the internal reed switch with a magnet.
D100-04-00
Technical Manuals Online! - http://www.tech-man.com
1.7 inches (43 mm)
4.0 inches (101 mm)
3.6 oz. (102 g)
0° to 49° C (32° to 120° F)
10% to 93% Relative Humidity noncondensing
Reset by momentary power interruption.
1
3825 Ohio Avenue, St. Charles, Illinois 60174
Base Selection And Wiring Guide
Refer to the installation instructions for the Plug-in Detec-
tor Bases for base selection and wiring instructions. System
Sensor has a variety of detector bases available for this
smoke detector, including 2-wire applications with and
without relays and/or current limiting resistors, 4-wire and
120VAC applications.
All bases are provided with screw terminals for power,
ground, remote annunciator connections and relay contact
connections, if applicable. The electrical ratings for each
detector-base combination are also included in the base in-
stallation instructions.
A Division of Pittway
1-800-SENSOR2, FAX: 630-377-6495
I56-581-05R
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