Frick Heavy Duty Industrial Reciprocating Compressor- 40 HP. Model: HDI6x62HV. S/N: 62802. Refrigerant: ammonia. Capacity: 32 TR (based on 20 °F suction and 185 psig discharge; 96.2 °F condensing). Maximum speed: 535 rpm. Maximum cfm: 105 cfm. Frick HDI Compressor's vertical design and lower speed operation have unequalled records of long, continuous, reliable service. Suction valves located in the piston, and discharge valves in the cylinder safety head mean greater valve efficiency, less heat to dissipate and lower BHP/TR than higher speed reciprocating or screw compressors. Operate with standard 1800 rpm motors. Inlets: (1) 1-1/2 in. dia. suction port. Outlets: (1) 1-1/2 in. dia. discharge port. Overall dimensions: 48 in. L x 29 in. W x 53 in. H. (ACN350).