CaptiveAire APA451 User Manual
Duct Smoke Detectors
The Next Level of HVAC Smoke Detection Has Arrived
Only System Sensor . . . Could Bring You the Widest Air Velocity
Ratings in a Single Duct Smoke Detector
Changing Air Speeds
Today’s HVAC applications may
utilize variable air volume systems
for increased occupancy comfort and
maximum energy efficiency. Innovair
with Low-Flow Technology is designed
to work with these newer systems,
offering UL Listed detectors
for duct air speeds as low
as 100 feet per minute to an
upper range of 4,000 feet
per minute.
Efficient and Self-contained
Sampling Tubes
Innovair duct detectors have a selfcontained telescopic sampling tube
for duct installations up to 18 inches
across. This feature eliminates
labor intensive cutting and drilling
in small duct applications. System
Sensor also offers a standard range
of sampling tubes for duct widths
1
/2′ to 12′. This flexibility
from 1
allows the Innovair detectors to be
installed quickly and efficiently
in virtually any duct application.
™
Ease and Convenience
Unlike typical low airflow solutions
that require costly installation of
in-duct, pendant mounted detectors,
Innovair duct smoke detectors are
easy to install — and maintain.
Their slim design and lightweight
construction make them easy to
handle. In addition, cover screws never
fall out, and the detector’s exterior
mounting tabs simplify installation on
round or rectangular ducts.
Built-in Interconnectability
Innovair allows multiple units to be
easily interconnected. Innovair 4-wire
detectors can be connected together
so that if one Innovair goes into alarm,
the auxiliary relays of the remaining
interconnected detectors will activate.
But, only the Innovair detecting smoke
goes into alarm, making identification
quick and easy.
Cover Missing Signal
Take the cover off of the 4-wire model
and a timer starts, allowing 7 minutes
to clean and maintain the unit. If
the cover remains off longer than 7
minutes, a trouble signal is activated.
This patented feature is found only
on Innovair detectors and assures
operational integrity in your HVAC duct
detection system.
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