1993 X-Changer, Inc. Aluminum Air / Gas Heat Exchanger. Model: AA-1000. Process side flow rate: 517 cfm with respective entering and leaving temperatures of 240°F and 96.3°F at 35 psi. Maximum design temperature: 250°F and test pressure of 40 psi. Baldor motor: ½ HP, 1725 RPM, 208-230/460 V, 2.1-2/1 A, 60 Hz, 3 phase. Fan blade diameter: 24 in The AA series heat exchanger needs minimal maintenance and uses an electric fan to reject heat to the surrounding air over a core of cooling fins. 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.. Inlets/outlets: (2) 4 in. pipe. Overall dimensions: 5 ft. 5 ½ in. L X 3 ft. W X 2 ft. 11 ½ in H.(ACN45).