Patent ID: 8197567

Claim:
Apparatus for evacuating water and dirt from a cooler box of a cooling system, comprising: a cooler box including a lower peripheral enclosure having an aperture therein, and a smaller box disposed beneath and upwardly open to the aperture and configured for collecting water and dirt from the cooler box; a fan for generating an air flow through an air screen, the cooler box, and at least one heat exchanger; a blow-off including a blow-off channel having an inlet disposed for receiving a portion of the air flow and including a channel section disposed and configured for directing the portion of the air flow on a portion of the air screen for blowing debris away from the air screen, the blow-off channel being connected to the smaller box in a manner such that the portion of the air flow through the channel will generate a partial vacuum condition in the smaller box operable for evacuating water and dirt from the smaller box into the channel.