![]() ![]() These systems delay smoke from migrating vertically via the structure’s stairs. ![]() The Smoke Guard screen consists of a reinforced, transparent, polyimide film. #ELEVATOR SMOKE AND DRAFT CONTROL CODE#At the same time, ventilation systems control the accumulation of smoke in that compartment.ĭraft Curtains, or “smoke baffles,” have traditionally been used around stairways, which must be used for Exit Access in the event of an evacuation. The Smoke Guard system Model 200 (M200) creates a code compliant smoke and draft control assembly when paired with common fire-rated elevator doors. (5) The fresh air supplied by forced draft and the smoke on the fire site are. ![]() Draft Curtains create areas that contain smoke, known as smoke compartments, and prevent it from spreading to other areas of a structure. The simulation shows that smoke moves very fast in the elevator shaft. draft curtains can divide open spaces into smaller, easier-to-control zones. The assembly may be installed in areas where pressurization is provided to control smoke movement in accordance with Section 4.3.2 of NFPA 105 (2019) and for hoistway opening protection and lobby doorways as allowed in Chapter 30 of the 2018 IBC.The NFPA defines a Draft Curtain as a “Fixed or Automatically deployable noncombustible barrier that protrudes downward from the ceiling to channel, contain or prevent the migration of smoke.” Draft Curtains can be manufactured from fire-resistant fiberglass woven textiles, glass (commonly called smoke baffles), or even panels of sheet metal.įixed Draft Curtains are typically used in single-story buildings such as warehouses, hangars, and industrial environments to channel and compartmentalize smoke. Unlike an elevator smoke barrier, a draft curtain helps to funnel smoke to. Installed at smoke detector to monitor the circuit. The Smoke Guard system will deploy when the smoke detector in front of the elevator opening goes into alarm (or on loss of power to the unit). Products Supplied But Not Installed Under This Section: 1. The protected path shall be separated from the enclosed elevator lobby through an opening protected by a smoke and draft control assembly in accordance. This enables the elevator to open directly onto the corridor, eliminating the need for additional doors at the elevator constructed lobby space. When opening the doors of the elevator shaft, this draft is clearly felt. The system will deploy only when the smoke detector in front of that particular elevator opening goes into alarm.ĪThis assembly was tested without an artificial bottom seal. Section Includes: smoke containment screen and control system designed to provide a tight-fitting, smoke- and draft-control assembly. System Operation: The Smoke Guard system is designed specifically to protect elevator openings and the shaft from vertical smoke migration. Smoke & draft rated assemblies eliminate the passage of smoke and are usually located at the point of access to an elevator car as an alternative to the elevator lobby. Additional installation components are required for openings greater than 55-1/4 inches wide. The Smoke Guard M400 and M400B System application designs are for a maximum hoistway opening of 70-1/2 inches wide, and a maximum ceiling height of 144 inches. ![]() The M400B System uses standard building power and an integral battery backup system to maintain operation during building power failure. The M400 System uses standard building power. Smoke Control have an extensive range of fire windows, fire shutters, smoke curtains, smoke containment screens and fire curtains achieving an FRL up to. The Smoke Guard M400 and M400B Systems include a control system consisting of a printed circuit board containing the control, alarm and diagnostic logic. Smoke control doors shall be: Held open during normal operation by a 'hold-open' device that is activated for closure by fire- or smoke-sensing devices located in the elevator lobby or its immediate vicinity and Readily openable from inside the car without a key, tool, special knowledge, or effort when closed. The smoke containment system is connected to the. The film edge is connected to flexible magnetic strips which adhere to ferrous metal rails as the system deploys creating a tight seal. The curtain protects the elevator opening from smoke migration by creating a smoke and draft control barrier. The Smoke Guard System screen consists of a reinforced, transparent, polyamide or polyimide film. System Description: The Smoke Guard Model 400 and Model 400B (M400 and M400B) Systems create a code-compliant smoke and draft control assembly when paired with common fire-rated elevator doors. ![]()
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