Elevator recall during a fire alarm is a safety feature that is designed to ensure the safety of occupants in a building during a fire emergency. The purpose of elevator recall is to return elevators to a designated floor, typically the ground floor, where they can be used to evacuate occupants from the building. When a fire alarm is activated, the building's fire alarm system sends a signal to the elevators, triggering the elevator recall function. This function causes the elevators to stop at the designated floor, where occupants can safely evacuate the building. The elevators are also locked to prevent unauthorized use, further ensuring the safety of occupants. The purpose of elevator recall during a fire alarm is to provide a safe and efficient means of evacuating occupants from the building. By returning elevators to the ground floor, occupants can avoid having to use the stairs, which may be dangerous or difficult to navigate during a fire emergency. Elevator recall also helps to prevent elevators from being used to transport people or firefighting equipment during a fire, which could be dangerous and impede firefighting efforts. In summary, the purpose of elevator recall during a fire alarm is to provide a safe and efficient means of evacuating occupants from a building in the event of a fire emergency.