STANDARD FEATURES

• UL 268 7th Edition Listed

• Designed to resist unwanted alarms from cooking and other nuisance alarm sources

• Optical particulate identification

• Early fire smoke detection

• 360° view of detector status LED

• Programmable non-polling LED

• Vandal resistant security locking feature

APPLICATION

The ALO-V (UL 268 7th edition listed) is a reliable, high quality multi-criteria Photoelectric Smoke Detector. It can be used in all open areas where Photoelectric Smoke Detectors are required. This detector is also suitable for monitoring smoke in HVAC ducts. The newly developed “multi-spectrum smoke categorization technology” detects smoldering and flaming fires fueled by traditional materials and polyurethane while reducing nuisance alarms.

The ASB7, ASBL7, SCI-B47, SCI-B67, YBN-NSA-47, and HSB-NSA-67 bases are UL Listed with the ALO-V.

OPERATION

The construction of the new chamber enhances the smoke entry for early fire smoke detection. The detection chamber utilizes light from IR and Blue LED sources. In the event of fire, particles of smoke enter the chamber and scatter light in proportion to the smoke density, resulting in an increased analog smoke measurement. The chamber contains a unique baffle design which allows smoke to enter the chamber while preventing external light from affecting the photodiode detector.

When the smoke density exceeds the programmed sensitivity threshold, the detector transmits an interrupt to the fire alarm control panel indicating a fire condition. The fire alarm control panel automatically adjusts the detector threshold to compensate for contamination.

Up to 127 devices are permitted on each SLC loop. The detector address is set by using a model AP7 hand-held programmer. The detector can mount to a variety of bases including electronics-free 4 and 6 inch bases, relay bases, and sounder bases. The detector’s status LED is viewable on the main face of the detector from all directions.

DETECTOR SPACING

Smoke detector spacing shall be in compliance with NFPA 72. For smooth ceilings and in the absence of specific performance-based design criteria, the distance between smoke detectors shall not exceed a nominal spacing of 30 ft. (9.1m) or all points on the ceiling shall have a detector within a distance equal to or less than 0.7 times the nominal 30 ft. (9.1m) spacing. Detectors shall be located within a distance of onehalf the nominal spacing, measured at right angles from all walls or partitions extending upward to within the top 15 percent of the ceiling height. For additional instructions see NFPA 72.