Patent ID: 8414251

Claim:
A fan system configured for use in an air-handling system to deliver air to a ventilation system for at least a portion of a building, the fan system comprising: an air handling compartment that includes chambers arranged adjacent to one another in at least one row or column, the air handling compartment having a discharge plenum configured to deliver air to a ventilation system for at least a portion of the building, the chambers having corresponding front and back ends; motors and fans positioned in the chambers, the fans located to take in air from the front ends of the corresponding chambers and to discharge the air from the back ends of the corresponding chambers, wherein the motors have a corresponding first speed when driven at a first frequency, the fans being configured to deliver an air flow amount based on a speed of the corresponding motor; sound attenuation layers that extend along at least a portion of the corresponding chambers such that the sound attenuation layers are positioned between at least some of the fans that are adjacent to one another; and an array controller for controlling said motors, the array controller configured to operate at least one of the motors at a speed that is less than or equal to a first speed to deliver an associated air flow amount from the corresponding one of the fans.