Ceiling Radiation Damper Installation
Steel channels with 9 16 in.
Ceiling radiation damper installation. Minimum flanges located 1 inch to 3 inches from and on both sides of a steel duct drop and these channels are suspended by 12 swg wire from. X 11 2 in. Provides easy access to fanmotordamper for hassle free maintenance. The model 241frd has been especially designed to provide protection and for simple installation in specific design wood truss ceiling assemblies.
We fabricate insulated and non insulated boxes as well as 900 end and straight boots. These installation instructions apply to ceiling radiation dampers mounted in 3 hour rated ceiling with supports from 1 a ceiling grid system 2 ductwork above or 3 structure above. Fan housing and damper sleeve during framing and fanmotordamper installation after finishes. To better understand ceiling radiation dampers.
Ceiling radiation dampers are also applicable for installation in boots and register boxes. Installation considerations for ceiling radiation dampers however since ceiling radiation dampers serve a somewhat different purpose than the other damper types there is often confusion about where a ceiling radiation damper should be used. Our folded ceramic curtain style damper meets both combustible and non combustible ul assemblies. The 241frd assembly consist of a rectangular ceiling damper recessed in a sheet metal tapered register box boot with round inlet collar that accommodates a steel grill or register.
Ceiling fire dampers also known as radiation dampers are designed and tested to limit the radiant heat transfer through an air inletoutlet opening in the ceiling membrane of a fire resistance rated floorceiling or roofceiling assembly. If you are interested in ceiling radiation dampers you can contact your local ceiling radiation damper representative on our local hvac rep page. Measure the actual spacing between the wood framing members and cut the mounting angle to that length plus six inches. Wood truss with gypboard ceiling radiation damper installation instructions ceiling radiation dampers iicfd15w april 2014 a.
5 ceiling radiation dampers dampers supported from ductwork above note about support when main ducts are supported by 16 ga.
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