Ceiling Radiation Damper Installation Detail

Damper is supported directly by the grid system and may lay on top of perforated metal or similar grille core material fusible link support wire must attach to duct or ceiling supports above.

Ceiling radiation damper installation detail.

The cfd7t is also ul approved for installation with duct connection below the membrane penetration. They are used to protect hvac openings in fire rated horizontal ceiling assemblies. The connection of the ceiling radiation damper diffuser neck and steel duct drop see connection notes section on page 3 may be satisfied in three ways. A minimum of two connections per side.

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 with 1 4 6 20 bolts at 6 152 o c. Installation considerations for ceiling radiation dampers. Imperial dimensions are converted to metric and rounded to the nearest millimetre. A ceiling radiation damper closes automatically to restrict the passage of heat.

Cfd7t is designed to accept a grille with an obd up to a maximum of 2 1 2 in depth. To better understand ceiling radiation dampers. Operated by a fuse link these dampers come spring loaded and are available with an easy access assembly. 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.

Each type of damper support system is described with damper being mounted in conjunction with various air devices. Download pdf installation guides for lloyd industries fire dampers smoke dampers ceiling radiation dampers combo smoke and fire dampers and more. Installation considerations for ceiling radiation dampers. The industrial grade backdraft dampers offer rugged construction and heavy gage materials to withstand the high velocities and back pressures associated with heavy duty installations.

From light operations to heavy duty industrial applications ruskin provides the perfect backdraft damper. 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. Ceiling radiation damper is the same size as the ceiling opening and installs directly into the exposed tee bar grid system opening. Let s examine the protection provided by each type of damper.

Fire dampers are intended to resist the passage of flames but their ability. The cfd7t is also designed to include an optional bottom extension for ceiling. Commercial dampers provide low pressure openings with excellent pressure drop performance. The ceiling damper may be connected directly to the grille and supported by steel channel see figure 6 detail g.

Each type of damper support system is described with damper being mounted in conjunction with various air devices. 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. This allows the consumer more access to the damper in the event that maintenance needs to be performed or the fuse link requires replacing.