§ 7.275. Landing doors.
Landing doors shall be provided in conformance with the following:
(1) All installations. The shaftways of freight elevators, where required to be of fire-resistive construction, shall be equipped at floor landings with approved fire-resistive landings doors. New installation of such doors shall be of approved one-hour fire-resistive construction and shall bear the certification to this effect from a recognized official testing laboratory. The maximum clearance between the doors, sills, lintels, and frames shall not exceed 7/8 inch. The doors shall also comply with the following:
(i) Landing doors shall be mounted on the interior walls of the shaftway, except that they may be mounted on the exterior wall of the shaftway if the entrances to such shaftway are further protected by standard gates, as specified in § 7.278 (relating to landing gates). Vertical or horizontal sliding or rolling doors may be opened but shall not be closed by independent power, except when the mechanism employed is approved by the Board. When vertical doors are operated by independent power, they may be opened automatically but shall be closed manually or by constant-pressure pushbuttons. The speed of such doors shall not exceed one foot per second and the drive shall be of a type that permits easy arrest of the progress of the doors in the event of contact with any obstruction. In such cases means shall be provided to permit the manual operation of the landing doors and car doors or gates from within the car in the event of failure of power. Doors of the swinging type shall be so mounted that the inside surface of the door is not more than four inches from the inside surface of the door sill. The width of the shaftway opening when the landing door is in a fully open position, shall not be greater than the width of the car opening.
(ii) Substantial stops shall be provided for both sections of a vertical biparting elevator door to prevent either door from dropping below the range of normal travel.
(iii) New installations of semiautomatic, counterbalanced, biparting and two-speed types of doors are prohibited. Existing semiautomatic, biparting shaftway doors shall be so changed as to be manually operated and all such doors shall be provided with approved locking devices.
(2) Existing installations. Landing doors, except those for automatic control and double-button control elevators, shall be equipped with latches arranged so that they may be unlocked only from the inside, except that the main or lowest landing door may be arranged to also open from outside the shaftway by means of a removable key.
(3) New installations. The main or parking floor door of all elevators, except double-button control, automatic control and dual control, shall be provided with a removable service key by which the door may be opened when the car is at that landing. Such service key shall be located where it is available to responsible authorized persons at all times. The landing doors at the lowest level and next floor above all elevators shall be equipped in such a manner that they may be opened, regardless of the location of the car, with a formed emergency key which is located under glass in the entry way or corridor on the lowest floor.
Source The provisions of this § 7.275 amended through March 26, 1969.
Cross References This section cited in 34 Pa. Code § 7.189 (relating to hoistway doors); 34 Pa. Code § 7.291 (relating to general); 34 Pa. Code § 7.295 (relating to hydraulic freight elevators); 34 Pa. Code § 7.297 (relating to hand elevators); and 34 Pa. Code § 7.298 (relating to gravity elevators).
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