INSTALLATION AND MAINTENANCE INSTRUCTIONS
1151 Low Profile Ionization
Plug-in Smoke Detectors
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com
Specifications
Size
Height:
Diameter:
Weight:
1.7 inches (43 mm)
4.0 inches (102 mm)
3.6 oz (102 g)
Operating Temperature Range:
–10°C to 60°C (14°F to 140°F)
NOTE: Do not install in locations where normal ambient temperature range extends
beyond 0°C to 49°C (32°F to 120°F)
Operating Humidity Range:
Latching Alarm:
10% to 93% Relative Humidity, Noncondensing
Reset by momentary power interruption
Before Installing
Base Selection and Wiring Guide
Please thoroughly read the System Sensor manual A05- Refer to the installation instructions for the plug-in detector
1003, Applications Guide for System Smoke Detectors, bases for wiring instructions. System Sensor has available a
which provides detailed information on detector spacing, variety of detector bases for this smoke detector, including
placement, zoning, wiring, and special applications. Copies 2-wire applications with and without relays and/or current
of this manual are available from System Sensor.
limiting resistors, 4-wire and 120 VAC applications.
NOTICE: This manual should be left with the owner/user All bases are provided with screw terminals for power,
of this equipment.
ground, remote annunciator connections, and relay contact
connections, if applicable. The electrical ratings for each
IMPORTANT: The detector used with this base must be detector-base combination are also included in the base
tested and maintained regularly following NFPA 72 require- installation instructions.
ments. The detector used with this base should be cleaned
at least once a year.
Installation
NOTE: All wiring must conform to applicable local codes,
ordinances, and regulations.
General Description
Model 1151 ionization detector uses state-of-the-art sens- NOTE: Verify that all detector bases are installed, that the
ing chambers. This detector is designed 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.
initiating-device circuits have been tested, and that
the wiring is correct.
WARNING
Remove power from initiating device circuits before install-
ing detectors.
Two LEDs on each detector light to provide a local 360° vis-
ible alarm indication. Remote LED annunciator capability
is available as an optional accessory. This detector also has
the latching alarm feature. The alarm can be reset only by
a momentary power interruption. For testing, this detector
has an internal magnetically activated reed switch.
1. Install Detectors:
a. Place the detector into the detector base.
b. Rotate the detector clockwise until the detector drops
into place.
c. Continue rotating the detector clockwise to lock it in
place.
Spacing
2. Tamper-Resistance: The detector bases include a feature
that, when activated, prevents removal of the detector
without the use of a tool. See the installation instruc-
tion manual of the detector base for details in using this
feature.
Spacing of 30 ft. on a smooth ceiling as per NFPA 72.
Where conditions or response requirements vary, other
spacing may apply.
D100-51-00
1
I56-546-08R