What is the elevator mode that is required by fire code and mandates a recall function?

What is the elevator mode that is required by fire code and mandates a recall function?

• A. Phase one mode
• B. Phase two mode
• C. Independent service mode
• D. Inspect mode

Answer: (A)

Phase One mode is the elevator recall function required by fire code. When a fire alarm is triggered, elevators automatically recall to a designated safe floor (usually the main lobby) and return to restricted operation. This stops general elevator use during a fire, reducing the risk of occupants being trapped or traveling to hazardous floors, and it clears the way for firefighters to access the building. Phase Two mode comes into play after recall, allowing firefighters to control the elevator car for rescue and firefighting operations, but it is not the recall itself. Independent service mode is a maintenance-only state, used by technicians, and Inspect mode is for testing and inspection tasks, not for fire safety recall.

Phase One mode is the elevator recall function required by fire code. When a fire alarm is triggered, elevators automatically recall to a designated safe floor (usually the main lobby) and return to restricted operation. This stops general elevator use during a fire, reducing the risk of occupants being trapped or traveling to hazardous floors, and it clears the way for firefighters to access the building.

Phase Two mode comes into play after recall, allowing firefighters to control the elevator car for rescue and firefighting operations, but it is not the recall itself. Independent service mode is a maintenance-only state, used by technicians, and Inspect mode is for testing and inspection tasks, not for fire safety recall.