Common

Where is elevator recall required?

Where is elevator recall required?

In every building taller than two stories-and in some two-story buildings as well-regulations will require you to provide elevator recall as part of the building’s fire alarm system installation. Numerous codes interrelate to ensure that the recall functions as ultimately required by the ASME/ANSI A17.

Do all elevators require recall?

Only the automatic detectors located in elevator lobbies, elevator shafts and machine rooms are permitted to initiate the recalling of elevators. In no case should an elevator be recalled by a manual pull station or by detectors located in other areas of the building unless mandated by the fire department (AHJ).

What elevators are required to have Phase I emergency recall operation?

Under Phase I operation, elevators that are 25 feet or more above the main floor return either to a designated landing area or an alternate area. Phase I operation is activated either manually by a special key, or automatically by a fire alarm initiating device.

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What happens to an elevator in a fire?

When the fire service mode is activated, the elevator cab is designed to return to the ground floor. If smoke is detected on the ground floor, the elevator is designed to return the cab to an alternate floor. Once the cab has arrived at the recall floor, the elevator doors should open.

What is meant by elevator recall?

Elevator recall, also known as “firefighter’s service” or “firefighter emergency operations,” essentially removes control and access to elevators from the public and allows firefighters to take control. The overall operation of the system is addressed in a number of standards, including ASME A17. 1 and ASME A17.

Under which operation elevators are recalled to a specific floor?

Phase I Elevator Recall Phase I recall will bring all elevators to the primary floor, with or without passengers. In the event that smoke is detected immediately adjacent to the elevator doors on the primary floor, Phase I recall will take the elevator to the alternative floor.

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How do you check for elevator recalls?

Test Methods Insert circular fireman’s key into the hall way key switch and turn to “On” or “Fireman” position. The car should travel to the floor you are on and park, with the doors remaining open. Calling the elevator from another floor should have no effect.

What is the emergency code for elevator incident?

Formally dubbed the A17 Life Safety Code for Elevators and Escalators, A17 is the basis for most requirements adopted at the local level. Under ASME standards, once a fire has been detected, elevators operate under either Phase I or Phase II regulations.

Why are elevators out of service during fires?

There are many reasons to steer clear of an elevator during a fire, but the primary reasons are: A fire can short out the electrical system, causing you to become stuck between floors. An elevator shaft acts like a chimney and can fill up with smoke quickly, putting you at risk of smoke inhalation.

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When can you use an elevator in a fire?

It isn’t appropriate to use an elevator during a fire or similar building emergency. Elevators are designed to be recalled to a floor, usually the lobby, during alarm conditions.

Under which operation Elevators are recalled to a specific floor?