Abstract: A heat exchanger having a wet side separate from a dry side for an equipment cabinet is provided. The heat exchanger includes a heat exchanger enclosure having a wet side fan and a dry side fan. The wet side fan draws air in from the external environment and routes the air through a heat exchanger core and out the heat exchanger enclosure. The dry side fan draws air in from within the equipment cabinet and routes the air through the heat exchanger core and out back into the equipment cabinet. The air from the outside acts to cool the heat exchanger core, which in turn acts to cool the air from the dry side as the air is routed through the heat exchanger core.