Meeting local fire codes and cutting costs

The three-story IPEC facility has large open spaces, like its 900 square metre ballroom and smaller contained areas for offices and hotel-style bedrooms. Covering 8600m2 in total, AM Fire & Electronic Services (AMFES) was challenged to meet Nevada state fire codes efficiently and cost effectively in the different spaces. These codes require that a notification appliance be present in every room to attain a consistent 80dBA sound level without relying on wall penetration. AMFES also had to meet the UL464 requirement for a low frequency 520Hz tone.

As an additional challenge, the building’s layout called for a large number of smoke dampers to be installed, each of which requires a separate smoke detector for activation. While a conventional design would have a duct-mounted smoke detector for every damper, the facility’s size would result in a high number of detectors to maintain. The hot, dust-heavy environment of Las Vegas causes a high failure rate, adding to the maintenance burden.

AMFES installed Advanced photoelectric detectors with Gentex speakers and speaker/ strobes throughout the building, and Advanced duct detectors in rooftop air handlers. Advanced Axis AX fire panels were used to incorporate the detectors into a networked system.

“Several key features made the decision easy,” said AMFES VP of Engineering, Daniel Miller. “The cost-effectiveness of Advanced equipment, the flexibility of the programming to support individual suite detectors, and the strength of the network.”

The combination of Axis AX panel, amplifier, sound file and Gentex speakers produces the 80dBA required and is NRTL listed to comply with low-frequency mandates. Advanced photoelectric detectors provide full area smoke detection, which allowed AMFES to eliminate all damper duct detectors. Only two rooftop units required duct detectors. The detectors are tested as part of the overall fire alarm system, with no individual 9V batteries to test and replace. The network ability of the Advanced equipment allowed AMFES to install a single fire alarm control panel on each floor, reducing cabling, cost and space requirements.