What Is A HVAC Concentric Airflow Diffuser System — Heating, ventilation and air-conditioning units often utilize air duct systems throughout homes and commercial buildings. A Concentric Diffuser system is designed to eliminate the need for traditional duct-work by providing a single air diffuser to supply & return air to each rooftop. A Concentric Diffuser provides conditioned air from a HVAC rooftop unit to a space, while returning air back to the rooftop unit through the same diffuser. Designed to deliver air into an open space, or just below the ceiling of an occupied space using a very short distance.
Concentric Diffuser Hard Duct System – Figure #1
Concentric Systems are comprised of many components. Instead of explaining the components in their assembled order, I’ll jump to the Hard or Flex Type connections. They dictate the construction of all the parts that make up a concentric diffuser system.
Hard & Flex Duct Connections — Two primary concentric diffuser systems dominate the market. They are referred to as Hard or Flexible Duct systems. There are many reasons why you may choose hard or flex connections. Perhaps an obstruction requiring flexible d