System Sensor 2151 User Manual
INSTALLATION AND MAINTENANCE INSTRUCTIONS
WARNING
2151 Low Profile
Photoelectronic Plug-in
Smoke Detector
Specifications
Size
Height: 1.7 inches (43 mm)
Diameter: 4.0 inches (101 mm)
Weight: 3.6 oz. (102 g)
Operating Temperature Range: 0°C to 49°C (32°F to 120°F)
Operating Humidity Range: 10% to 93% Relative Humidity noncondensing
Latching Alarm: Reset by momentary power interruption.
Before Installing
Please thoroughly read the System Sensor manual A051003, Applications Guide for System Smoke Detectors,
which provides 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 requirements. The detector used with this base should be cleaned
at least once a year.
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
installation instructions.
Installation
NOTE: All wiring must conform to applicable local codes,
ordinances, and regulations.
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com
General Description
The 2151 low-profile photoelectronic detector uses a stateof-the-art optical sensing chamber. 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.
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 momentary power interruption. This detector
may be tested by activating the internal reed switch with
a magnet.
Base Selection And Wiring Guide
Refer to the installation instructions for the Plug-in
Detector Bases for base selection and wiring instructions.
System Sensor has a variety of detector bases available for
NOTE: Verify that all detector bases are installed, that
the initiating-device circuits have been tested, and
that the wiring is correct. (Refer to detector base
manual for testing procedure.)
Remove power from initiating-device circuits before installing detectors.
1. Install detectors:
a. Place the detector into the detector base.
b. Turn the detector clockwise until the detector drops
into place.
c. Continue turning detector clockwise to lock it in
place.
2. Tamper Resistance: The detector bases can be made tamper resistant. When capability is enabled, detectors cannot be removed from the base without the use of a tool.
See the detector base installation manual of the detector
base for details in using this capability.
3. After all detectors have been installed, apply power to
the control unit.
D100-04-00 1 I56-581-07R
4. Test the detector using the magnet as described under
CAUTION
CAUTION
LED
LED
EST MODULE
SOCKET
TES
T
MA
G
NE
T
PAINTED
SURFACE
TESTING.
5. Reset the detector at the system control panel.
6. Notify the proper authorities that the system is back on
line.
A. Test Magnet (p/n M02-04-01 or M02-09-00)
1. Place the magnet against the cover in the location
designated by the raised mark to activate the test fea
ture (see Figure 1).
2. The LEDs should latch ON within 5 seconds indicating alarm and annunciating the panel.
-
Dust covers are an effective way to limit the entry of dust
into smoke detector sensing chambers. However, they may
not completely prevent airborne dust particles from entering the detector. Therefore, System Sensor recommends the
removal of detectors before beginning construction or other
dust producing activity.
Be sure to remove the dust covers from any sensors that
were left in place during construction as part of returning
the system to service.
Smoke detectors are not to be used with detector guards
unless the combination has been evaluated and found
suitable for that purpose.
Testing
Before testing, notify the proper authorities that the smoke
detector system is undergoing maintenance and will temporarily be out of service. Disable the zone or system
undergoing maintenance to prevent unwanted alarms.
Detectors must be tested after installation and as part of
periodic maintenance. Test the 2151 as follows:
NOTE: Before testing the detector, check to ensure the
LEDs blink. If they do not, the detector has lost
power (check the wiring) or it is defective (return
it for repair).
B. Test Module ( MOD400R)
Use the MOD400R with a DMM or voltmeter to check
the detector sensitivity as described in the MOD400R
manual.
C. Aerosol Generator (Gemini 501)
Set the generator to represent 4% to 5%/ft. obscuration
as described in the Gemini 501 Manual. Using the bowlshaped applicator, apply aerosol until unit alarms.
Notify the proper authorities that the system is back on
line.
Detectors that fail these tests should be cleaned as described
under MAINTENANCE and retested. If the detectors still
fail these tests, they should be returned for repair.
Maintenance
It is recommended that the detector be removed from
its mounting base to facilitate cleaning. The detector is
cleaned as follows:
NOTE: Before removing the detector, notify the proper
authorities that the smoke detector system is
undergoing maintenance and will be temporarily
out of service. Disable the zone or system undergoing maintenance to prevent unwanted alarms.
Figure 1. Bottom and side views showing position of test magnet:
D100-04-00 2 I56-581-07R
C0627-00
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