1998 Marley Aquatower Cooling Tower- 36 Ton. Model: 493A. S/N: 138705-1/B22152A/4841. Belt No: A112. Nominal tons are based upon 95 °F HW, 85 °F, CW, 78 °F WB, and 3 gpm/ton. The Aquatower is a space/energy-efficient cooling tower. It offers maintenance free operation with its heavy mill galvanizing on all steel components which prevents base metal corrosion. General Electric Motor, 2 hp, 1725 rpm, 208-230/460 V, 6.2-5.8/2.9 amps, 60 Hz, 3 phase. Inlets: (1) 4 in. dia. port. Outlets: (1) 2 in. dia. FNPT overflow port, (1) 4 in. dia. tower discharge port. Overall dimensions: 78-1/2 in. L x 58-1/2 in. W x 90 in. H.