Grasso Reciprocating Ammonia Compressor. Model: RC611 Serial: 96051349. Year: 1996. Max design pressure: 305 PSIG. Max Perm. Speed: 1000 RPM. Capacity: 571 kW at -5˚C/+32˚C (162 TR at +23F/+89.6F). Weight 1465 lbs. Made in The Netherlands. Compressor is mounted on a Unitized Compressor Skid manufactured by Mojonnier Bros. Serial: 9005. Refrigerant: ammonia. Oil separator vessel: 250 PSI at +650F, year 1978. Lincoln motor: 125 HP, 1770 RPM, 460V, 3-phase, 60 Hz, 405T Frame. (ACN240)