Another popular energy-saving Trane feature is eDrive direct-drive plenum fan
technology, which is up to 20 percent more efficient than traditional forward-curved fans," he adds.
FAN TYPE AIRFLOW FAN WORK ANNUAL WORK (CFM) (W) (KWH) Twin FC Scrolled Fans 10,000 6,833 59,860 Twin AF Scrolled Fans 10,000 5,655 49,535 Belt Drive Plenum Fan 10,000 5,252 46,006 Direct Drive Plenum Fan 10,000 4,939 43,261 FAN TYPE ANNUAL COST ($) Twin FC Scrolled Fans 5,986 Twin AF Scrolled Fans 4,953 Belt Drive Plenum Fan 4,601 Direct Drive Plenum Fan 4,326 TABLE 5 Casing savings.
Optional fan arrangements include airfoil scrolled fans, and belt and direct drive plenum fans.
The direct drive plenum fans also offer reduced maintenance (no belts) and the ability to vary the supply airflow for further energy savings (depending on the building application).
The company offers a wide range of high-quality industrial fans, blowers, and motors including Axial fans, Centrifugal blowers, Plug fans, Plenum fans
, Single and Double Inlet fans, with both AC and EC motors.
The major packaged and custom CRAH manufacturers all offer plenum fans, which eliminates this issue.
Authors: While plenum fans are possible from most manufacturers it is still common to see CRAHs implemented using forward curve fans.