Release Panels

Electric releasing panels are specialized control units used to initiate and supervise fire suppression system actuation in applications where detection must directly control valve release. Their primary function is to receive signals from detectors and, upon meeting programmed logic (e.g., cross-zoning or verified detection), energize releasing devices such as solenoid valves or actuators. These panels are commonly used with deluge systems and preaction systems (single- and double-interlock), where controlled release is required before water enters system piping or discharges through open sprinklers or nozzles. The panel ensures proper sequencing, preventing inadvertent discharge while enabling rapid response under confirmed fire conditions. Releasing panels incorporate numerous supervisory inputs, including detection circuits, manual release stations, valve position switches, low air pressure switches, and system trouble signals. Outputs typically include solenoid activation, notification appliance circuits, shutdown interfaces (HVAC, fuel, or power), and alarm transmission. These dedicated panels are interconnected with the building’s main fire alarm control panel to provide system-wide annunciation and supervision. Signals such as alarm, supervisory, and trouble are transmitted to the main panel, ensuring coordinated notification, monitoring, and response across the entire fire protection and life safety system.