The Notifier DNR(A) 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.
The DNRW duct smoke detector, with its NEMA-4 rating, is listed as
a watertight, UV resistant 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 4,000 feet per minute (0.5 – 20.32
m/s), temperatures of -4°F – 158°F (-20°C – 70°C), and a humidity
range of 0 – 95 percent (non-condensing.)
An improved cover design isolates the sensor head, which allows for
ease of maintenance. A cover tamper feature indicates a trouble signal for a removed or improperly installed sensor cover. The housing
provides a 3/4-inch conduit knockout and ample space to facilitate
easy wiring and mounting of a relay module.
The Notifier DNR(A) duct smoke detectors can be customized to
meet local codes and specifications without additional wiring and are
compatible with all previous models, including remote test accessories.
Features
- Photoelectric, integrated low-flow technology
- Air velocity rating from 100 ft/min – 4,000 ft/min (0.5 m/s – 20.32 m/s)
- Versatile mounting options: square or rectangular configuration
- Broad ranges for operating temperature (-4°F – 158°F, -20°C – 70°C) and humidity (0% – 95% non-condensing)
- Patented sampling tube installs from front or back of the detector with no tools required
- Cover tamper signal
- Increased wiring space with a newly added 3/4” conduit knockout
- Available space within housing to accommodate mounting of a relay module
- Easily accessible code wheels on sensor head (sold separately)
- Clear cover for convenient visual inspection
- Remote testing capability
- Requires com line power only
- Accommodates an addressable relay module, sold separately, (FRM-1) for applications requiring a Form-C relay
Accessories
Notifier provides system flexibility with a variety of accessories,
including two remote test stations and different means of visible and
audible system annunciation. As with our duct smoke detectors, all
duct smoke detectors accessories are UL listed.
DNR(W) housings with a date code of 0013 or higher do not require
external 24VDC for remote test applications when used with a
remote-test-capable detector.
Agency Listings and Approvals
Consult product manual for lists of compatible UL-Listed devices. In
some cases, certain modules may not be listed by certain approval
agencies, or listing may be in process. Consult factory for latest list-
ing status.
- UL: S635, S3705
- ULC: S635
- CSFM: 3240-1653:0209
- FM approved
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