Which action should be taken when the air pressure drops significantly in a system?

When air pressure drops significantly in a sprinkler system, it is crucial to ensure that the system is properly monitored and assessed for any potential issues that could lead to system failure or compromise its effectiveness. Calling the alarm company and placing the system on test is the appropriate action because this alerts the monitoring service to the situation, allowing them to evaluate whether there may be a leak or other issue affecting the system's integrity.

By putting the system on test, you can also prevent false alarms during the troubleshooting process, which could occur if the fire alarm is inadvertently activated due to the pressure drop. This action ensures that maintenance and repairs can be carried out without causing disruption or alarming building occupants unnecessarily. It also allows for the collection of data to understand the extent of the problem, ensuring that it can be resolved effectively while maintaining safety protocols.

Maintaining awareness of the system's status is essential for compliance with safety regulations and ensuring effective fire protection measures are in place.