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Stairwell Door Controls

Photo of Stairwell Door Controls
 

For security reasons, many high rise buildings will have doors in the stairwells which are locked from the inside of the stairwells. The stairwells will always be accessible as the means to exit the building, but cannot be used by the occupants to reenter.

If the fire alarm is activated, the stairwell doors will automatically unlock. This allows ready access for fire fighting operations.

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