The InnovairFlex™ Series. D2, 2-wire photoelectric duct
smoke detector features a pivoting housing that fits various
applications: both square and rectangular footprints mount
to round or rectangular duct work. The InnovairFlex™
Series are the only duct smoke detectors flexible enough
to fit configurations from square to rectangular and every-
thing in between.
This new duct smoke detector senses airflow speeds rang-
ing from 100 to 4.000 feet per minute with proven System
Sensor precision. The enhancements built into this model
improve false alarm immunity (with plug-in sensor head);
broaden operating temperature (-4°F to 158°F) and humid-
ity (0 to 95 percent non-condensing) ranges; while simplify-
ing the installation and the maintenance. These advance
features detect smoke in the harshest duct applications.
The new design provides more wiring space with an added
V* inch conduit knockout. Numbers and labels for terminal
designations are consistent with previous Innovair models.
The new sampling tube can be clicked into position with
one smooth motion from either the front or the back of the
The InnovairFlex Series. D2 duct smoke detector has sig-
nals to indicate trouble and maintenance conditions. Addi-
tionally. a cover tamper feature is incorporated to indicate a
trouble condition for a removed or improperly installed sen-
sor cover. An improved cover design, with an integrated
low-flow feature, isolates the sensor head from the low-
flow technology for simple maintenance.