System Sensor 5551 Installation And Maintenance Instructions

INSTALLATION AND MAINTENANCE INSTRUCTIONS
5551 Plug-in Intelligent
Fixed Temperature Sensor
with Communications
Specifications
Diameter:
Height:
Weight:
Installation Temperatures:
Operating Temperature Range:
Operating Humidity Range:
Mounting:
Voltage Range:
Standby Current:
LED Current:
Fixed Temperature Thermal:
Before Installing
Please thoroughly read the system wiring and installation
manual, which provides detailed information on sensor
spacing, placement, zoning, and special applications. Cop-
ies of these manuals are available from System Sensor.
NOTICE: This manual should be left with the owner/user
of this equipment.
IMPORTANT: This sensor must be tested and maintained
regularly following NFPA 72 requirements. This sensor
should be cleaned at least once a year.
D550-05-00
6.1 inches (15.5 cm) installed in B501B
4.1 inches (10.4 cm) installed in B501
1.6 inches (4.1 cm)
5 ounces (150 g)
32° to 100° F
0° to 38° C (32° to 100° F)
10% to 93% Relative Humidity
B501B flanged base
B501 flangeless base
B501 with RMK recessed mounting kit
15 to 32 Volts DC Peak
200 µ A @ 24 VDC
7 mA @ 24 VDC
135° F (57° C)
1
3825 Ohio Avenue, St. Charles, Illinois 60174
General Description
The model 5551 is a fixed temperature intelligent sensor
utilizing a state-of-the-art dual thermistor sensing circuit
for fast response. These sensors are designed to provide
open area protection with 50 foot spacing capability, and
are to be used with compatible control panels only. (For in-
stallation in Canada, refer to ULC-S530-1978.)
Two LEDs on each sensor light to provide 360° visibility of
the sensor indication. The LEDs can be latched ON by code
command from the panel for an alarm indication. The
LEDs can also be unlatched to the normal condition by
code command. Remote LED annunciator capability is
available as an optional accessory (Part No. RA400).
A Division of Pittway
1-800-SENSOR2, FAX: 630-377-6495
I56-336-06