Description
The InnovairFlex DNR intelligent non-relay photoelectric
duct smoke detector and DNRW watertight non-relay
photoelectric duct smoke detector feature a pivoting housing that fits both square and rectangular footprints
capable of mounting to a round or rectangular duct.
DNRW duct smoke detector, with its NEMA 4 rating, is listed as a watertight enclosure providing protection
against falling dirt, rain, and windblown dust, splashing and hose directed water, allowing operators to use the
detector in the most extreme environments. These units sense smoke in the most challenging
conditions, operating in airflow speeds of 100 to 4000 feet per minute, temperatures of -4°F to 158°F, and a humidity
range of 0 to 95 percent (non-condensing).
An improved cover design isolates the sensor head from
the lowflow feature for simple maintenance. A cover
tamper feature was added to indicate a trouble signal for a removed or improperly installed sensor cover. The
InnovairFlex housing provides a ¾ inch conduit knockout and ample space to facilitate easy wiring and mounting
of relay module. The InnovairFlex duct smoke detector can be customized
to meet local codes and specifications without additional wiring. The new InnovairFlex product line is compatible
with all previous Innovair models, including remote test accessories.
WARNING: Duct smoke detectors have specific limitations.
DUCT SMOKE DETECTORS ARE:
NOT a substitute for an open area smoke detector, NOT a substitute for early warning detection, and
NOT a replacement for a building’s regular fire detection system.
Refer to NFPA 72, 90A and CAN/ULC S524 for additional duct smoke detector application information.
Architectural/Engineering Specifications
The air duct smoke detector shall be a System
Sensor InnovairFlex™ DNR Intelligent Non-Relay
Photoelectric Duct Smoke Detector and DNRW
Watertight NEMA4 Duct Smoke Detector. The detector
housing shall be UL listed per UL 268A specifically
for use in air handling systems. The flexible housing
of the duct smoke detector fits both square and
rectangular footprints. The detector shall operate at
air velocities of 100 ft/min to 4000 ft/min (0.5 m/sec to
20.32 m/sec). The unit shall be capable of providing
a trouble signal in the event that the sensor cover is
removed or improperly installed. It shall be capable
of local testing via magnetic switch or remote testing
using the RTS151KEY remote test station. Terminal
connections shall be of the strip and clamp method
suitable for 12–18 AWG wiring.
Installing the InnovairFlex Sampling Tube
DNR(A) Wiring Diagram
Accessories
A variety of accessories are available, including remote test
stations, and several different means of visible and audible
system annunciation.
Ordering Information
