Direct Drive Plenum Fans

View wall mounted fans.

Direct drive plenum fans.

Accessories motors hoods roof curbs. Equipped with a gusseted mounting panel they are mounted directly to the plenum wall separating the motor and drive components from the process air. A plenum fan consists of a centrifugal fan wheel without the surrounding housing. Spun aluminum and steel fans with direct drives and belt drives for exhaust supply recirculate filter and process applications.

This design saves space by eliminating traditional scroll housings transitions and diffusers normally found within a plenum. Plug fans offer great versatility for complex system configurations. The fan wheel pressurizes the surrounding plenum allowing air to discharge in multiple directions. Energy savings with their fan is typically 5 15 higher because of the large back plate and formed special fan blade inlet see below.

Plenum fans are designed for general hvac applications where large volumes of clean air are required at low to moderate pressures. Pmd series backward inclined direct drive plenum fan. Look at the direct drive plenum fans manufactured by ziehl abegg a german company that manufactures direct drive plenum fans with the highest efficiency and lowest sound levels in the industry. Air circulation and mancoolers.

With no fan shaft bearings or belts to maintain model apd eliminates the cost and maintenance associated with traditional belt drive plenum fans. Greenheck s new model apd plenum fan features a direct drive fan with the wheel connected to the motor shaft. Direct drive plenum fans a housed fan contains a scroll or housing that directs the air leaving the fan in one direction figure 1. Backward inclined airfoil wheels provide high efficiency performance and sound characteristics needed for the most stringent hvac applications.

Includes both direct and belt drive fans with various impeller types suitable for in wall mounted applications. Pmd series backward inclined direct drive plenum fan.