The CFD-521-BT employs butterfly style blades for point-of-origin control of radiant heat in HVAC systems. The 45-degree collar installation option makes duct connections much easier in tight spaces where access to the top of the damper is restricted.
CFD-521-BTDuring the Covid-19 pandemic and into the recovery phase, schools are vitally aware of the need to provide energy efficient fresh air intake and exhaust. With the CARES and CRRSA bills, the U.S. government has now approved more than 100 billion to support upgrades to critical school infrastructure such as improvements to HVAC systems and indoor air quality.
Watch Pottorff School Refit VideoInstallation is a breeze with these handy animations. Includes installation videos for our CFD-521-90 with 90 degree plenum, CFD-521-BT with insulated outlet box, CFD-521-IP with insulated duct board outlet box and our CFD-521-IP with connection below the ceiling.
Pottorff’s YouTube ChannelOur Model DMR access door employs a fully removable dual-panel-door to provide a convenient and economical means to obtain access to components in round ductwork. The insulated option is ideal for reducing condensation in humid environments.
DMROur first model released is our 6” deep EFD-637-MD hurricane louver. It is also AMCA Certified for Water Penetration and Air Performance. The EFD-637-MD is engineered and tested to withstand extreme loads, debris impact and cyclic fatigue associated with hurricanes.
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