(1) Except as permitted by Sentence (3), in a building having elevators that serve storeys above the first storey and that are equipped with an automatic emergency recall feature, smoke detectors shall be installed in the elevator lobbies on the recall level so that when these smoke detectors are actuated, the elevators will automatically return directly to an alternate floor level.
(2) Smoke detectors required by Sentence (1) shall be designed as part of the building fire alarm system.
(3) The alternate floor recall feature required by Sentence (1) is not required if the floor area containing the recall level is sprinklered.