Ceiling Radiation Damper Cad Detail

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 cad detail.

Cad drawings dwg. 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. Fire and heat protection where hvac components penetrate the ceiling membrane.

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. The cfd2 is a ul555c classified ceiling fire damper. Ceiling radiation damper is the same size as the ceiling opening and installs directly into the exposed tee bar grid system opening. 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.

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.