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Operating Mode

Operating Mode

Notification appliances provide notification to individuals in a protected building by providing audible or visible notification. The specific individuals intended to be notified by the notification appliances determines the operating mode of the appliance.

Slope Ceilings

Slope Ceilings

Ceilings have a direct impact on detector spacing and location. This impact directly affects smoke and heat detectors, so an understanding of ceilings and their impact is a critical aspect to fire alarm design. NFPA 72 defines ceilings in Chapter 3 as an upper...