Patent ID: 9121618
Filing Date: 2015-09-01
Classification: B01F,F24F,F25D,Y02B

Abstract:
1. A direct evaporative air handler for conditioning an enclosed space with supply air, the air handler comprising: a direct evaporative cooler; an outdoor air port positioned upstream of the evaporative cooler in an air flow direction, the outdoor air port being configured to allow outdoor air to enter the air handler; a return air port positioned upstream of the evaporative cooler in an air flow direction, the return air port being configured to allow recirculated air from the enclosed space to enter the air handler; and an outdoor air bypass port that is configured to allow outdoor air to enter the air handler at a position where the outdoor air entering the bypass port will not pass through the evaporative cooler, wherein the air handler is configured so that outdoor air entering the air handler through the outdoor air port passes through the evaporative cooler, and the recirculated air entering the air handler through the return air port passes through the evaporative cooler.