- Improper placement of detectors or improper selection of detectors (e.g. Putting smoke detectors by locker rooms when heat detectors would be more appropriate)
- Not enough detectors installed (sometimes missing in air handlers)
- Improper programming of panels (the panel might have been properly programmed when first installed, but when the building layout changed, the panel wasn’t reprogrammed to adjust to the changes)
- Audibility and intelligibility of voice evacuation system
- Incorrect placement of audible and visual notification devices
- Lack of system maintenance (e.g. dirty detectors, dead batteries)
- Lack of zoning or incorrect zoning
- Lack of electromagnetic door holders (this leads to building occupants propping doors open)
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