Ceiling Radiation Damper Installation Detail

Up to 3 hour ceiling radiation damper installation instructions c e i l i n g r a d i a t i o n d a m p e r s i c f d 1 5 m 6 1 0 2 7 1 a p r i l 2 0 2 0 a.

Ceiling radiation damper installation detail.

The ceiling damper shall be attached to a minimum 22 gauge 0 85 steel sleeve duct drop by welding or with rivets or with 10 m5 sheet metal screws or with quick lock or bolted. The ceiling damper may be connected directly to the diffuser neck. Steel channels with 9 16 in. Ceiling radiation dampers are available in butterfly style and curtain style.

A ceiling radiation damper closes automatically to restrict the passage of heat. 5 ceiling radiation dampers dampers supported from ductwork above note about support when main ducts are supported by 16 ga. The connection of the ceiling radiation damper diffuser neck and steel duct drop see connection notes section on page 3 may be satisfied in two ways. The ceiling damper and diffuser neck may be directly connected to the steel duct drop see figure 3 detail c.

Static ceiling radiation dampers models mrcd mscd mscdsb mccd ceiling radiation dampers covered under ul 555c intended for installation in hourly rated fire resistive floor ceiling and roof ceiling assemblies in accordance with the standard for fire tests of building construction and materials ul 263. Operated by a fuse link these dampers come spring loaded and are available with an easy access assembly. X 11 2 in. Let s examine the protection provided by each type of damper.

They are used to protect hvac openings in fire rated horizontal ceiling assemblies. 2 ceiling radiation damper may be connected directly to the grille and supported by hanger straps see detail e or note. To better understand ceiling radiation dampers. Download pdf installation guides for lloyd industries fire dampers smoke dampers ceiling radiation dampers combo smoke and fire dampers and more.

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. 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. Opening in ceiling membrane see page 1 may be up to 1 25mm larger than the nominal size of the ceiling radiation damper i e.