WebMay 11, 2005 · The contractor is confused. If your design is based on the Uniform Mechanical Code, shutdown of the respective air handler is only required if the unit has a discharge rate of 2000 CFM or greater. NFPA 72 (2002 ed) allows the use of area smoke detection. However, its less expensive to use duct smoke detectors. WebMay 31, 2024 · Generally, fire dampers are required where air ducts penetrate walls that are rated for 2-hours or more. They are needed in all air transfer openings (non-ducted) in rated walls, regardless of the rating. And they are required at some, but not all penetrations of rated floor assemblies and shaft enclosures. Why are fire dampers required?
General Fire and Smoke Damper Requirements - Building in …
WebA corridor damper, also known as a corridor fire smoke damper or combination fire and smoke damper, is a type of fire damper that is designed for installation in corridor … WebNov 26, 2024 · The fire alarm system needs to be considered as equally important system component, as the overall smoke control system will not function properly without these … how old is considered an antique
Smoke Damper Connection to Emergency Power Mike …
WebFire Damper Required Smoke Damper Required Typically ducts shall not penetrate fire walls but if allowed then damper is required No requirements stated in section ... Ducts … WebThe primary purpose of the duct detector on the supply side is to shut down the air handler if fire is detected in the fan or filter. This would protect the equipment and keep smoke from being distributed to the air conditioned space. Some would argue that detectors on the supply side are susceptible to outside air or smoke, which could affect ... WebAug 1, 2006 · The Life Safety Code allows smoke dampers to be omitted from duct penetrations in fully ducted HVAC systems; however, in this example, the building code does not. So, fire smoke dampers are placed in the ducts as they cross the smoke partition. There are two AHUs in a penthouse with ductwork serving approximately one … merchants menu calgary