![]() Concurrently, the only option for tenants is to use stairs for evacuation purposes, allowing emergency responders to assist the disabled and, at the same time, deploy resources and personnel to contain further building damage. These two systems are basic in principle and rely on emergency responders to plan and execute a building evacuation by restricting the use of elevators to trained emergency personnel. If it is determined that the incident is minor in nature, the elevator system can be returned to normal operation by selecting the bypass position at the main hall station, located at the designated level further investigation and resetting at the fire command center occurs later. To provide more information to emergency responders, if smoke is detected in the elevator machine room or hoistway, a flashing light in the elevator cab alerts the emergency responder to use caution when utilizing affected elevators. Phase II overrides any building security system so that access to all floors is unrestricted.ĭuring Phase II operations, car doors are under control of the emergency responders by means of a continuous-pressure door open button. Phase II is implemented when firefighters determine they need elevators for their use it becomes operational when firefighters use a key switch in the car-operating panel that is accessible to them. ![]() Once elevators travel non-stop to the designated level and Phase I Recall is completed, power-operated doors open and remain open, waiting for emergency responders to decide - based upon the level of incident - whether to use any elevator during Phase II, or to use the stairs. Signs are posted at each landing, near the call station, clearly instructing occupants, “In case of fire do not use elevators, use stairs.” Phase I Recall Operations are initiated when smoke is detected in any elevator lobby, machine room or hoistway. Elevator smoke and draft control manual#Until as recently as 2013, the design criteria for fire recall, Manual Phase I Operation under ASME A17.1, has merely required that elevators be taken out of service and recalled to a designated or alternate landing. Thus, two critical objectives must be met simultaneously - the first, containment and prevention of additional damage to structures the second, protected evacuation of affected areas. Responders must have safe, reliable and unobstructed access to upper floors when handling emergency situations, while building occupants must be able to evacuate safely, orderly and rapidly. The new guidelines are intended to reduce access and egress times during emergencies, and they outline a more structured evacuation model. This paper presents an overview of the design requirements currently introduced in the United States for fire service access and for occupant evacuation in tall buildings. With more knowledge about the dispersal of people using standard means-of-egress, it has become clear to building design professionals that elevators are a key component of any emergency response. Providing safe elevators during emergencies must include changes in building, fire and elevator codes, as well as modified occupant behavior and increased user awareness. (website: This paper is an exact reprint and has not been edited by ELEVATOR WORLD. It is a reprint with permission from the International Association of Elevator Engineers Smoke & Fire believe that all elevator systems in the United States are candidates for applying innovative smoke curtain technology.Paris 2014, the International Congress on Vertical Transportation Technologies, and first published in IAEE book Elevator Technology 20, edited by A. The curtains do not interfere with elevator door operations but provide a smoke and draft control assembly for the fire-rated elevator. ![]() In the event that the main power, backup generator, and fire alarm panel fail, the smoke curtains will operate independently and deploy in their fail safe mode. Steel side rails are utilized, and compatible frames are provided that can be either painted to match in the field, or powder coated finish per your color standard. Curtains are available in a variety of elevator hoistway opening sizes and housing dimensions. ![]() Our smoke curtains are deployed automatically, as directed by the applicable smoke detection and alarm system, or can also be manually deployed and retracted, as required. Smoke & Fire Curtain Applications in Elevators Play an Important RoleĬurtain Technology can be effectively applied to protect an elevator opening from the threat of smoke and fire. ![]()
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