X-Changer Aluminum Heat Exchanger. Model: AA-1000 3 in. Baldor motor: ½ HP, 1725 RPM, 208-230/460 V, 2.1-2/1 A, 60 Hz, 3 phase. Fan blade diameter: 24 in. Inlets/outlets: (2) 3 in. pipe. The AA series heat exchanger needs minimal maintenance an uses an electric fan to reject heat to the surrounding air. Under normal conditions the AA series units will not form condensation so moisture sensitive products can be handled with safety. Applications include cooling and moisture removal from conveyed products with typical approach temperatures of 15°F. Overall dimensions: 5 ft. 5 ¾ in. L X 3 ft. W X 2 ft. 11 ½ in. H.(ACN45).