Perimeter angles shall overlap the wall floor by a minimum of 1.
Ceiling fire damper installation.
Equipped with fusible link at no extra charge.
Listed clearance requirements are 1 8 per linear foot unless stated otherwise.
Ceiling radiation dampers shall comply with ul 555c and shall be installed in accordance with the manufacturer s installation instructions in the fire resistive ceiling membrane of floor ceiling and roof ceiling assemblies where required by the building code.
The cfd2 is a ul555c classified ceiling fire damper.
Each type of damper support system is described with damper being mounted in conjunction with various air devices.
Download pdf installation guides for lloyd industries fire dampers smoke dampers ceiling radiation dampers combo smoke and fire dampers and more.
Ceiling openings up to a 24 x 24 610mm x 610mm 576 sq.
As with all joints contractor must seal duct collar connection in field after installation.
A ceiling radiation damper closes automatically to restrict the passage of heat.
These installation instructions apply to a 3 hour rated ceiling radiation dampers aka ceiling dampers mounted in a ceiling with supports from 1 a ceiling grid system 2 ductwork above or 3 structure above.
Among other tests ul 555c includes a fire endurance test that utilizes the same time temperature curve used in ul 263.
The investigation of ceiling dampers for use in floor ceiling or.
The industrial grade backdraft dampers offer rugged construction and heavy gage materials to withstand the high velocities and back pressures associated with heavy duty installations.
They are used to protect hvac openings in fire rated horizontal ceiling assemblies.
1 8 10 expansion joint per linear foot ii.
Sleeve is not required to be centered but can rest on the bottom of the opening.
Foot on height and width of sleeve to a maximum of 1 1 2 e g.
Damper 47 3 4 x 47 3 4 collar 48 x 48 opening 49 1 2 x 49 1 2.
From light operations to heavy duty industrial applications ruskin provides the perfect backdraft damper.
Maximum size limits of each individual ceiling damper model must be observed.
This allows the consumer more access to the damper in the event that maintenance needs to be performed or the fuse link requires replacing.
Commercial dampers provide low pressure openings with excellent pressure drop performance.
Fire and heat protection where hvac components penetrate the ceiling membrane.
Fire damper sleeve clearance within wall floor opening i.
A 36 x 20 fire damper sleeve will have an opening of.
Operated by a fuse link these dampers come spring loaded and are available with an easy access assembly.
Minimum clearance shall be.
