Vilter 4-Cylinder Reciprocating Compressor. S/N: 10218 A RC. Size/model: 444. Refrigerant: ammonia. Capacity: 47 tons of R-717 at 53 BHP with a 93°F condensing temperature and a 20°F suction temperature. (4) cylinders. Displacement: 155 cfm (at maximum rpm). Maximum rpm: 1200. Voltage: 220. The Louis Allis Co. motor: 60 hp, 1750 rpm, 440 V, 72 A, 60 Hz, 3 Phase. Vilter ammonia receiving tank. S/N: 3-68414-28. 250 P.S.I at 400 °F. Tank dimensions: 2 ft. straight wall x 1 ft. dia. (10 gallons). Pulley dia: (1) 1 ft. driver, (1) 1 ft. 9 in. driven. Inlet/outlet: (2) 3 in. pipe ports. Overall dimensions: 6 ft. 10 in. L x 4 ft. W x 7 ft. 5 in. H.