Marley Cooling Tower. Model: Aquatower. Capacity: 80 tons. S/N: 208230-861-B24538-01. Belt size: B-140. Fan diameter: 4 ft. 5 in. Marathon Electric Motor. Motor pulley diameter: 6 in. Fan pulley diameter: 20-1/2 in. Pulley ratio: 0.29. All primary components of the Aquatower are open to view and debris can be easily removed from the upper basin or nozzles while the tower is in operation. V-belts are easily replaced and aligned from outside the tower. Aquatowers perform as specified in the heat of summer, respond well to energy management techniques in the spring and fall and with appropriate fan controls, can operate virtually ice-free throughout winter months. Inlets: (1) 3/4 in. dia. makeup valve, (1) 9 in. dia. water infeed port. Outlets: (1) 4 in. dia. drain port, (1) 1-1/2 in. dia. overflow port. Overall dimensions: 8 ft. 7-1/2 in. L x 7 ft. W x 9 ft. 2 in. H. (ACN171).