Series 77 Type C - Horizontal Dynamic Fire Damper with Round Collar Outdoor Condensers the built-in digital control can

the built-in digital control can be configured on the top or on the inlet side of the unit for easy access

making it an essential accessory for modern HVAC systems

It's an immune system booster

Hyper-Heating maintains full heating capacity at 5°F (-15°C) and operates efficiently even in colder climates

That's because it's Awesome

Series 77 Type C - Horizontal Dynamic Fire Damper with Round Collar Outdoor Condensers the built-in digital control canSeries 77 Type C Horizontal Dynamic Fire Damper with Round Collar Click here for Submittal Standard Profile Fire Damper 4 22Ga 1 Piece Rollformed Frame Dynamic for Installation in Systems Where Fans Remain Running During Fire and Smoke Control UL Classified UL 555 1 Hour Rating, Dynamic for Use in Installations Rated Less Than 3 Specifications: Blades Blades and Frame Out of Air Stream 100% Free Area Material Galvanized Steel Standard Stainless Steel