Pittway SYSTEM SENSOR 1551B Installation And Maintenance Instructions

INSTALLATION AND MAINTENANCE INSTRUCTIONS
1551B Plug-in Intelligent
Ionization Sensors with Communications
Specifications
Diameter:
Height:
Weight:
Operating Temperature Range:
Operating Humidity Range:
Mounting:
Maximum Air Velocity:
Voltage Range:
Standby Current:
LED Current:
Before Installing
Please thoroughly read Guide for Proper Use of System
Smoke Detectors (I56-407-XX), which provides detailed in-
formation on sensor spacing, placement, zoning, and spe-
cial applications. Copies of this manual are available from
System Sensor.
General Description
Models 1551B dual-chamber ionization intelligent sensors
utilize a state-of-the-art, unipolar sensing chamber. These
sensors are designed for use with duct housings DH500
and DH500AC/DC only, and to be used with compatible
control panels only. Connect sensors only to compatible
control units. (For installation in Canada, refer to CAN/
ULC-S524-M86, Standard for the Installation of Fire Alarm
Systems and CEC Part 1, Sec. 32.)
Two LED's on each sensor light to provide a local 360° vis-
ibility of the sensor indication. The LED's can be latched
on by code command from the panel for an alarm indica-
tion. The LED's can also be unlatched to the normal condi-
tion by code command. Remote LED annunciator
capability is available as an optional accessory (Part No.
RA400).
D500-40-00
6.1 inches (155 mm) installed in B501B
4.1 inches (104 mm) installed in B501
2.3 inches (58 mm)
5 ounces (150 gm)
-10° to 60° C (14° to 140° F)
Note: Do not install where normal ambient temperatures extend beyond 0° to 49° C
(32° to 120° F)
10% to 93% Relative Humidity
B501B flanged base
B501 flangeless base
B501 with RMK400 recessed mounting kit
B501BH Base with horn
1500 Ft./Min. (7.6 m/S)
15 to 32 VDC
200 µA maximum @ 24 VDC (with no communication)
300 µA average maximum @ 24 VDC (with one communication every five seconds
and LED blink enabled)
6.5 mA @ 24 VDC
1
3825 Ohio Avenue, St. Charles, Illinois 60174
Wiring Guide
Model 1551B can be used with any one of a variety of plug-
in bases. Therefore, connect all wiring following the
installation instructions provided with the base that was
selected for use with the 1551B. As Figure 1 indicates,
bases are equipped with screw terminals for all
appropriate connections.
NOTE: All wiring must conform to applicable local codes,
ordinances, and regulations.
NOTE: Verify that all sensor bases are installed and that
the wiring polarity is correct at each base.
Remove power from the loop before installing sensors.
1. Install sensors:
a. Verify that the sensor type matches the type written
on the label on the base.
b. Set the sensor to the desired address and record it on
the label on the base.
c. Place the sensor into the sensor base.
d. Rotate the sensor clockwise until it drops into place.
e. Continue rotating the sensor clockwise until it locks
in place.
A Division of Pittway
1-800-SENSOR2, FAX: 630-377-6495
WARNING
I56-1436-00