At what pressure does the high air alarm activate?

The high air alarm activates at 5 psi over the system air pressure because this threshold is established to ensure adequate monitoring and response to potential issues in the sprinkler system's air pressure. Maintaining the right air pressure is vital for the reliable operation of dry and pre-action sprinkler systems. When the pressure rises beyond normal operating levels, it can indicate problems such as leaks or overcharging, which may compromise the system's performance. Setting the alarm at 5 psi over the standard pressure provides a balance between early warning and avoiding unnecessary alarms, thus promoting effective maintenance and safety protocols for fire protection systems. This level of sensitivity helps ensure that corrective actions can be taken promptly before any significant issues arise.