Controlled system and methods for storage fire protection

A system for ceiling-only fire protection of a storage occupancy having a ceiling defining a nominal ceiling height of thirty feel or greater, the system comprising:

• a plurality of fluid distribution devices disposed beneath the ceiling and above a high-piled storage commodity in the storage occupancy having a nominal storage height less than the nominal ceiling height and ranging from a nominal 20 ft. to a maximum nominal storage height of 55 ft., the high-piled storage commodity including any one of Class I, II, III or IV, Group A, Group B, or Group C plastics, elastomers, rubber, and exposed expanded plastic commodities, the plurality of fluid distribution devices including a fluid distribution device with a frame body having an inlet, an outlet, and a sealing assembly, the sealing assembly having a sealing button, or a plug;
• a fluid distribution system including a network of pipes interconnecting the plurality of fluid distribution devices to a water supply;
• a plurality of detectors to monitor the storage occupancy for a fire;
• and a controller coupled to the plurality of detectors to detect and locate the fire, the controller being coupled to the plurality of fluid distribution devices to identify and control operation of a select number of fluid distribution devices of the plurality of fluid distribution devices defining a discharge array above and about the fire, the controller:
• receives an input signal from each of the plurality of detectors;
• determines whether the input signal from one or more detectors of the plurality of detectors meets or exceeds a pre-alarm threshold using the input signal from each of the plurality of detectors;
• assigns a fluid distribution device of the plurality of fluid distribution devices associated with the one or more detectors of the plurality of detectors for which the input signal meets or exceeds the pre-alarm threshold to a device queue;
• and
• generates an output signal for operation of each assigned fluid distribution device of the plurality of fluid distribution devices responsive to the input signal meeting or exceeding an alarm threshold greater than the pre-alarm thresholds;
• wherein, the device queue has met a minimum threshold number of assigned fluid distribution devices of the plurality of fluid distribution devices within the device queue to allow for operation of each assigned fluid distribution device of the plurality of fluid distribution devices.