Ceiling radiation damper application.
Ceiling radiation damper installation instructions.
Connection of ceiling radiation damper grille and steel duct drop may be satisfied in two ways.
Equipped with fusible link at no extra charge.
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 and grille neck may be connected.
The damper shall be installed as shown on the installation sheet.
These instructions address the different applications of installing the dampers in a ceiling with supports from 1.
Up to 3 hour ceiling radiation damper installation instructions ceiling radiation dampers ii cfd15 february 2013 a.
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.
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.
The cfd2 is a ul555c classified ceiling fire damper.
Let s examine the protection provided by each type of damper.
To better understand ceiling radiation dampers.
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.
Fire and heat protection where hvac components penetrate the ceiling membrane.
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.
Ul rated fire smoke and ceiling radiation dampers.
12 swg hanger wires minimum of 3 wires are to be used to support the round ceiling dampers.
Each type of damper support system is described with damper being mounted in conjunction with various air devices.
The damper surface mounted diffuser shall be installed as shown on the installation sheet.
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.
