What is the primary role of an air pressure alarm in a dry sprinkler system?

The primary role of an air pressure alarm in a dry sprinkler system is to alert management of a drop in air pressure. In a dry sprinkler system, air is used to maintain pressure within the pipes, preventing water from entering until the system is activated by heat during a fire event. If there is a drop in air pressure, it may indicate a breach in the system, such as a leak or failure, which could compromise the effectiveness of the sprinkler system when needed. The air pressure alarm ensures that any issues are promptly addressed, helping to maintain the operational readiness and reliability of the system in a fire emergency.