Ceiling Radiation Damper Installation Instructions

To better understand ceiling radiation dampers.

Ceiling radiation damper installation instructions.

These instructions address the different applications of installing the dampers in a ceiling with supports from 1. 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 and grille neck may be connected. The nominal size of the ceiling radiation damper.

Up to 3 hour ceiling radiation damper installation instructions ceiling radiation dampers ii cfd15 february 2013 a. Models crd 1 crd 1lp crd 2 and crd 60 may be installed as shown in figure 7 model crd 1 crd 1lp illustrated. Ul rated fire smoke and ceiling radiation dampers. Let s examine the protection provided by each type of damper.

The damper shall be installed as shown on the installation sheet. Each type of damper support system is described with damper being mounted in conjunction with various air devices. 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. 12 swg hanger wires minimum of 3 wires are to be used to support the round ceiling dampers.

The damper surface mounted diffuser shall be installed as shown on the installation sheet. A minimum of two con nec tions per side. A steel angle should be attached to the bottom of the ceiling radiation damper and span the gap from the ceiling radiation damper to the bottom of the ceiling membrane see detail d figure 7. The cfd2 is a ul555c classified ceiling fire damper.

For example a 12 x 12 305 x 305 ceiling radiation damper could have a maximum ceiling membrane opening of 13 x 13 330 x 330. These installation instructions apply to ceiling radiation dampers of the round rectangular single and butterfly blade types installed in a ul rated floor ceiling or roof ceiling assembly. Ceiling radiation damper application. Equipped with fusible link at no extra charge.