D200-66-00
1
I56-997-02
2112TL Photoelectronic
Smoke Detector
INSTALLATION AND MAINTENANCE INSTRUCTIONS
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
Before Installing
Please thoroughly read 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 should 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
The Model 2112TL is a 4-wire photoelectronic smoke detec-
tor that uses a state-of-the-art optical sensing chamber.
This detector is designed to provide open area protection. It
features restorable, built-in, fixed-temperature (135
°
F)
thermal sensors.
Specifications
Diameter:
5.5 inches (140 mm)
Height (including mounting bracket):
1.7 inches (43 mm)
Weight:
5.3 oz. (150 g)
Operating Temperature Range:
32
°
to 100
°
F (0
°
to 37.7
°
C)
Operating Humidity Range:
10% to 93% relative humidity, noncondensing
Latching Alarm:
Reset by momentary power interruption
Heat Sensor:
135
°
F fixed temperature electronic thermistor
Electrical Ratings
System Voltage
Nominal:
12 VDC
Minimum:
9.5 VDC
Maximum:
14 VDC
Maximum Ripple Voltage:
30% of nom. voltage (peak to peak)
Alarm Current (at 12 V):
13 mA maximum
Reset Voltage:
0.8 VDC minimum
Reset Time:
0.3 seconds maximum
Start-up Time:
30 seconds maximum (after 30 second reset)
Installation of this detector is simplified by the use of the
mounting bracket and plug-in screw terminal block that
can be prewired to the system, allowing the detector to be
easily installed or removed for cleaning.
The 2112TL features transistors that provide alarm, power
supervisory, and sensitivity status signals for complete
smoke detector performance.
NOTE:
The alarm and supervisory outputs are not to be
used as relay contacts.
In addition, an LED on the detector provides a local visual
indication of the detector’s status. If power is applied to the
detector, and it is functioning normally in standby, the sta-
tus LED blinks every ten seconds. The LED latches on in
alarm and quits flashing when the detector deviates from
its sensitivity range.
