Abstract: Fire suppression systems and methods are provided. The system can include an electronically activated sprinkler (EAS) interlock system to protect a target zone. The EAS interlock system can include a controller. The controller can be communicably coupled with a first detector and a second detector. The first detector can be disposed in an area outside the target zone. The second detector can be disposed inside the target zone. The controller can receive an input signal from the first detector indicating an event occurred prior to or in an absence of receipt of an input signal from the second detector. The controller can provide a hold command to at least temporarily inhibit a sprinkler inside the target zone from actuation based on receipt of the input signal from the first detector prior to or in the absence of receipt of the input signal from the second detector.

Abstract: Systems and methods of ceiling-only fire protection of a storage structure are disclosed herein. The system comprising a plurality of fluid distribution devices disposed in a grid pattern beneath a ceiling and above the storage structure. The plurality of fluid distribution devices comprising a frame body, seal assembly and actuator. The system further comprising a fluid distribution system including a network of pipes interconnecting the plurality of fluid distribution devices with a water supply. The system further comprising a plurality of detectors to monitor the storage structure for a fire. The system further comprising a controller coupled with the plurality of detectors to detect and locate the fire, and coupled with the plurality of fluid distribution devices to identify and control operation of a select number of the plurality of fluid distribution devices that define a discharge array above and about the fire.