2.11.6 Opening of Hoistway Doors
(a) the top terminal landing
(b) the bottom terminal landing
(a) The building code.
(c) The additional door or device shall not interfere with the fire-resistance rating and operation of the hoistway entrance. Direct or mechanical attachment (i.e., welding, holes, bolts, or rivets) shall not be made to hoistway doors or frames, unless the additional door or device and the hoistway elevator entrance are listed as a complete assembly by a certifying organization.
(d) When in the closed position, additional doors or devices shall not prevent firefighters from visually observing the elevator landing (lobby) when the elevator hoistway door is no more than one-quarter open.
(e) Additional doors or devices shall be permitted to be deployed only at those hoistway openings of elevators where fire alarm initiating devices used to initiate Phase I Emergency Recall Operation associated with that elevator have been activated.
NOTE: It is recommended that all additional doors or devices deployed in front of hoistway doors shall be cleared (returned to open/standby position) by authorized or emergency personnel prior to removing the elevator from Phase I Emergency Recall Operation and returning to normal operation. In the case of an unintended deployment, it is recommended that authorized personnel return doors to the open or standby position.