Table of Contents
Advertisement
Quick Links
Installation AND MAINTENANCE INSTRUCTIONS
2112/24AT
Photoelectronic Smoke Detector with
Fixed Heat and Integral Temp-3 Sounder
Figure 1. Wiring diagram for the 2112/24AT detector:
Specifications
Diameter:
Height (including mounting bracket):
Weight:
Operating Temperature Range:
Operating Humidity Range:
Latching Alarm:
Audible Signal:
Heat Sensor:
Electrical Ratings
System Voltage (nominal):
Minimum:
Maximum:
Maximum Ripple Voltage:
Standby Current:
Alarm Current:
Reset Voltage:
Reset Time:
Start-up Time:
EOL Relay:
Alarm Initiation
Contact Rating, Resistive Load:
Special Considerations:
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.
D200-82-00
Technical Manuals Online! - http://www.tech-man.com
IMPORTANT: OBSERVE POLARITY
As with all sounder models, polarity must be observed on the power connections.
+
POWER
TO
DETECTORS
–
UL LISTED
COMPATIBLE
CONTROL
PANEL
INITIATING
LOOP
5.5 inches (140 mm)
2.05 inches (52 mm)
7.5 oz. (210 g)
32° to 100°F (0° to 38°C)
10% to 93% Relative Humidity, Noncondensing
Reset by momentary power interruption
85 dBA minimum when in alarm or with supply polarity reversed
135°F Fixed Temperature Electronic Thermistor
12 or 24 VDC
10 VDC
35 VDC
30% of nom. Voltage (peak to peak)
50 µ A maximum
49 mA typical, 60 mA max. at 12V
57 mA typical, 65 mA max. at 24V
0.8 VDC minimum
1.0 second maximum
30 seconds maximum (after 60 sec. reset)
A77-716B, 12/24 VDC
1A @ 30 VDC
Due to the built-in temporal pattern, use this detector only with a non-coded
power supply.
+
P
+
P
W
+
W
+
R
R
–
–
ALARM
ALARM
A
A
CONTACT
CONTACT
A
A
NOT USED
NOT USED
OPTIONAL CLASS A WIRING
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.
1
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
EOL POWER
SUPERVISION
RELAY (SHOWN
ENERGIZED)
A77-716 12/24V
EOL RESISTOR
SPECIFIED BY
PANEL
MANUFACTURER
I56-1237-00
A78-2336-14
Advertisement
Table of Contents
Related Manuals for Pittway System Sensor 2112/24AT
Summary of Contents for Pittway System Sensor 2112/24AT
- Page 1 INSTALLATION AND MAINTENANCE INSTRUCTIONS 2112/24AT Photoelectronic Smoke Detector with A Division of Pittway 3825 Ohio Avenue, St. Charles, Illinois 60174 Fixed Heat and Integral Temp-3 Sounder 1-800-SENSOR2, FAX: 630-377-6495 Figure 1. Wiring diagram for the 2112/24AT detector: IMPORTANT: OBSERVE POLARITY As with all sounder models, polarity must be observed on the power connections.
- Page 2 Figure 2. Surface mounting of 2112/24AT smoke detector on 3 -inch and 4-inch octagonal box: If the LED stops blinking, the unit should be removed for maintenance and inspection. Mounting Each 2112/24AT detector is supplied with a mounting bracket that permits the detector to be mounted: 1 .
- Page 3 ing (See Figure 4). Wire connections are made by stripping about 1/4 inch of 2 . Press and hold the recessed test switch with a 0.18 insulation from the end of the feed wire, inserting the wire inch maximum diameter tool such as an allen wrench into the appropriate terminal, and tightening the screw to or small screwdriver.
- Page 4 Figure 5. Removal of cover and screen for cleaning: 2 . Vacuum the screen carefully without removing it. 3 . Remove screen assembly, pulling straight out (please see Figure 5). 4 . Remove the sensing chamber cover. REMOVABLE 5 . Clean the sensing chamber by vacuuming or blowing HOUSING out dust and particles.
Need help?
Do you have a question about the System Sensor 2112/24AT and is the answer not in the manual?
Questions and answers