Which building systems are sometimes integrated with fire alarm systems?

Which building systems are sometimes integrated with fire alarm systems?

• A. Elevators
• B. HVAC
• C. Door unlocking
• D. All of the above

Answer: (D)

Integrating a fire alarm with other building systems helps coordinate life-safety actions during a fire. Elevators are recalled or halted to stop occupants from using them and to keep people safe from fire and smoke in the hoistways. HVAC can be shut down or adjusted to prevent smoke from circulating through ducts and to keep stairwells and protected areas tenable. Doors can be unlocked or controlled to allow rapid, unobstructed egress and reduce crowding at exits. Because these coordinated responses are commonly implemented, all of the above is the best choice.

Integrating a fire alarm with other building systems helps coordinate life-safety actions during a fire. Elevators are recalled or halted to stop occupants from using them and to keep people safe from fire and smoke in the hoistways. HVAC can be shut down or adjusted to prevent smoke from circulating through ducts and to keep stairwells and protected areas tenable. Doors can be unlocked or controlled to allow rapid, unobstructed egress and reduce crowding at exits. Because these coordinated responses are commonly implemented, all of the above is the best choice.