2 & 4 WIRE IONIZATION SMOKE DETECTOR
1451B-A
Description
The Mircom 1451B-A ionization smoke detectors
respond quickly to both fast flaming and slow
smouldering fi res are required by UL268. Unipolar
dual chamber sensor has the sensitivity needed to
quickly detect smoke, and the stability needed to
avoid false alarms.
Features
Unique dual unipolar sensor
•
Provides exceptional stability
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Factory preset at 1.9% nominal sensitivity
•
Stable operation up to 1,200 feet per minute (6
•
meters per second) air velocities
Removable cover for fi eld cleaning
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Two visible LED “blink” in standby
•
Sealed against dirt, insects and back pressure
•
3 year Limited Warranty
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Field adjustable sensitivity
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Field metering of detector sensitivity
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Built-in test switch
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Low standby current
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Built-in tamper-resistant feature
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Designed for direct surface or electrical box
•
mounting
360° fi eld viewing angle of the visual alarm LEDs
•
Insect-resistant screening (0.020”/0.508mm
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openings)
Easy plug-in of the head to base
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SEMS screws for easy wiring
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Optional recess mounting
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Mircom reserves the right to make changes at any time without notice in prices, colours, materials, components, equipment, specifi cations and models and also to discontinue models.
Installation
Maximum number of detectors per zone is listed in
the installation manual for each control panel. Easy
to install and maintain, this detector is designed
for direct surface mounting (using one of the B400
Series bases listed below). Easy-to-wire screw
terminals allow fast and simple fi eld wiring of IN, OUT
and remote annunciator connections.
Consult Mircom control panel specifi cations for the
maximum allowable loop resistance for the particular
control panel to be used.
To prevent wiring mistakes, observe polarities and
make certain that each conductor is identifi able. A
copy of Installation and Maintenance Instructions is
packaged with each detector. For further information,
refer to NFPA 72E “Standard on Automatic Fire
Detectors.”
Application
Use for protection of life and property. Superior
to photoelectric detectors in detecting fast fl aming
fi res. Superior to bipolar detectors in avoiding false
fl ames.
5105
NOT TO BE USED FOR INSTALLATION PURPOSES.
MEA
approved
APPROVED
CATALOG NUMBER
