Unless otherwise required by the AHJ, only the elevator lobby, elevator hoistway, and elevator machine room smoke detectors, or other automatic fire detection, shall be used to________________________.
a. Send a specific and coded signal to the FACP.
b. Recall elevators to the fire fighter’s service.
c. Activate the lobby, hoistway and machine room smoke relief equipment.
d. Shut-off the primary power control circuits to the elevator.
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Answer => (b) NFPA 72 2013 21.3.3
