Ceiling Radiation Damper Cad Detail

The cfd2 is a ul555c classified ceiling fire damper.

Ceiling radiation damper cad detail.

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. Ceiling radiation damper any be connected directly to the air device neck and then the duct drop connected to the damper see detail b figure 6. Fire and heat protection where hvac components penetrate the ceiling membrane. Ceiling radiation damper is the same size as the ceiling opening and installs directly into the exposed tee bar grid system opening.

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. Cad drawings dwg. A 12 x 12 305mm x 305mm nominal ceiling radiation damper could have a maximum ceiling membrane opening of 13 x 13 330mm x 330mm. Ceiling radiation damper and air device neck may be connected directly to the duct drop see detail a figure 6.

The ceiling damper may be connected directly to the grille and supported by steel channel see figure 6 detail g.