Patent ID: 7914252
Filing Date: 2011-03-29
Classification: F04D,F05D,F24F,Y02B

Abstract:
1. A fan array fan section in an air-handling system to supply air to a building, comprising: an air handling compartment having a discharge plenum configured to deliver air to a ventilation system for at least a portion of the building; a fan array of at least three fan units positioned in the air handling compartment, the fan units having motors and fans, the motors having a corresponding nameplate rated speed, the fans being configured to deliver an air flow amount based on a speed of the corresponding motor; a speed controller to operate at least one of the motors at a first speed that is equal to or below the nameplate rated speed to deliver a first air flow amount from a corresponding one of the fans; and the speed controller to operate the at least one of the motors at a second speed that is greater than the nameplate rated speed to deliver a second air flow amount from the corresponding one of the fans.