NFPA 101 Life Safety Code… Section 5-2.1.6.2 Access Controlled Egress Doors. Where permitted in Chapters 8 through 32, doors in the means of egress shall be permitted to be equipped with an approved entrance and egress access control system, provided that (a) A sensor is provided on the egress side arranged to detect an occupant approaching the doors and the doors are arranged to unlock upon detection of approaching occupant or loss of power to the sensor; and (b) Loss of power to that part of the access control system that locks the doors automatically unlocks the doors; and (c) The doors are arranged to unlock from a manual release device located 40 in. (102 cm) to 48 in. (122 cm) vertically above the floor and within 5 ft (1.5 m) of the secured doors. The manual release device shall be readily accessible and clearly identified by a sign that reads: “PUSH TO EXIT”. When operated, the manual release device shall result in direct interruption of power to the lock – independent of the access control system electronics – and the doors shall remain unlocked for at least 30 sec; and (d) Activation of the building fire-protective signaling system, if provided, automatically unlocks the doors and the doors remain unlocked until the fire-protective signaling system has been manually reset; and (e) Activation of the building automatic sprinkler or fire detection system, if provided, automatically unlocks the doors and the doors remain unlocked until the fire-protective signaling system has been manually reset.
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