Why Pre-Action? . These systems are commonly used in areas where accidental water discharge could cause severe damage (like data centers, museums, or archives). The pipes contain air, not water, until two things happen: 1. The fire alarm panel detects a fire (smoke/heat). 2. The system’s control valve is manually or electronically opened. This dual-action trigger virtually eliminates accidental discharge! . #FireSprinklers #PreActionSystem #firealarm | KORD Fire Protection