Ceiling Radiation Damper Cad 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 cad detail. Cad drawings dwg. 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. Ul rated fire smoke and ceiling radiation dampers. The cfd2 is a ul555c classified ceiling fire damper.
Fire and heat protection where hvac components penetrate the ceiling membrane. Ceiling radiation damper and air device neck may be connected directly to the duct drop see detail a figure 6. 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. Equipped with fusible link at no extra charge.
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.