What are the services to be integrated with the Fire Alarm control panel?

Most important is HVAC , then comes  Fuel transfer or recirculation systems, Battery charging systems, Smoke extract systems, Elevator/Lifts

In any Building, Fire Alarm is the most important important system in order to save human lives and other systems. In order to do this, HVAC System is integrated with FACP so that in case of any Smoke Detection, AHU are closed in order to prevent Smoke being circulated in whole buiding. Emergeny Lighting Systems are also integrated with FACP so that Evacuation can be done. Other Control Panels are also integrated with FACP to shutdown systems that are potenial to being burned when fire reaches them.