Mycom Cimco C5-WO4A 4-Cylinder Reciprocating Compressor. Model: C5-WO4A. This is the same compressor as the model N4A. Refrigerant: last used with R-717 (ammonia). Nominal capacity: 29.2 tons at 32.5 bhp with a 95ºF condensing temperature and 20ºF suction temperature. Displacement: 110 cfm. Max speed: 1,450 rpm. Bore: 3-3/4 in. Stroke: 3 in. Hydrostatic test pressure (hi/lo): 450/300 psig. Air test pressure (hi/lo): 300/180 psig. Water cooled oil heads and oil cooler. U. S. Electrical motor, 25 hp, 1775 rpm, 575 V, 24 amps, 60 Hz, 3 phase. Inlet: 2-1/4 in. dia. suction. Outlet: 2 in. dia. discharge. Approximate weight: 2,200 lbs. Overall dimensions 6 ft. 9 in. L x 3 ft. 2 in. W x 4 ft. 2 in. H. (ACN166-BC/M).