D450-00-00
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I56-2816-002R
©2007 System Sensor
System Sensor warrants its enclosed product to be free from defects in materi-
als and workmanship under normal use and service for a period of three years
from date of manufacture. System Sensor makes no other express warranty for
this air duct smoke detector. No agent, representative, dealer, or employee of
the Company has the authority to increase or alter the obligations or limitations
of this Warranty. The Company’s obligation of this Warranty shall be limited
to the replacement of any part of the product which is found to be defective
in materials or workmanship under normal use and service during the three
year period commencing with the date of manufacture. After phoning System
Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return Authorization
number, send defective units postage prepaid to: System Sensor, Returns
D450-00-00
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I56-2816-002R
B401BH-2
Sounder Bases
INSTALLATION AND MAINTENANCE INSTRUCTIONS
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com
Before Installing
Please thoroughly read the System Sensor manual I56-407-xxx,
Guide for Proper Use of System Smoke Detectors
, which
provides detailed information on detector spacing, place-
ment, zoning, wiring, and special applications. Copies of
this manual are available at no charge from System Sensor.
NFPA 72 and NEMA should be observed.
NOTICE:
This manual should be left with the owner/user
of this equipment.
IMPORTANT:
The detector used with these bases must
be tested and maintained regularly following NFPA 72 re-
quirements. The detector used with these bases should be
cleaned at least once a year.
Specifications
Base Diameter:
6 inches (152 mm)
Base Height (less base and sensor):
0.75 inches (19mm)
Weight:
0.32 lb. (145 g)
Operating Temperature Range:
14° to 140°F (–10° to +60°C)
Operating Humidity Range:
10% to 95%, non-condensing
Electrical Ratings
Voltage:
17 to 32 VDC
Standby Current:
1.0 mA maximum
Alarm Current:
15 mA maximum
Maximum Ripple Voltage:
10% of supply voltage
Start-up Capacitance:
200 µF
Horn Input Current Requirement:
600 µA maximum
Sound Output:
Greater than 90 dBa measured in anechoic room at 10 feet (3 meters), 24 volts.
85 dBa minimum measured in UL reverberant room.
Sounder Delay Time:
0.75 to 5.7 sec
General Description
Model B401BH-2 sounder bases is intended for use with
System Sensor 400 Series plug-in sensor heads in conven-
tional 2-wire plug-in systems. Refer to systems manuals
for the maximum allowable number of units per loop. The
B401BH-2 requires an external 24VDC (nominal) supply
with reverse polarity capability. The connections of the ex-
ternal supply (terminals 1 and 2) and the initiating loop
(terminals 3, 4, and 5) are isolated in the B401BH-2 to pre-
vent electrical interaction between them.
A loop of horns can be made to sound by reversing the po-
larity of the external supply.
NOTE:
When the associated system is NOT used as a sup-
plementary evacuation system, the external 24VDC supply
must be treated as a component of the main power supply
system with the result that it falls under the requirements
of NFPA 72.
Please refer to insert for the Limitations of Fire Alarm Systems
Three-Year Limited Warranty
Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174. Please
include a note describing the malfunction and suspected cause of failure.
The Company shall not be obligated to replace units which are found to be
defective because of damage, unreasonable use, modifications, or alterations
occurring after the date of manufacture. In no case shall the Company be
liable for any consequential or incidental damages for breach of this or any
other Warranty, expressed or implied whatsoever, even if the loss or damage
is caused by the Company’s negligence or fault. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you. This Warranty gives you specific
legal rights, and you may also have other rights which vary from state to state.
I56-2816-002R
