Howe Corporation J56 6-Cylinder Reciprocating Compressor (75 HP 230/460 V, Belt Driven) Howe Reciprocating Compressor. Model J-56. Refrigerant: ammonia. Number of cylinders: 6. Zero Mfg. Co hours since factory rebuild. Setup for booster application. Markings: 530-L-2, 540-A-2. Marathon Electric Series E motor: 75 HP, 1775 RPM, 230/460V, 176/88 amps, 60 Hz, 3-phase, 365T Frame (also rated for 190/380V, 50 Hz). Nominal booster rating (ammonia): 26.90 TR / 45.20 BHP at -40F / +25.8F. Nominal booster rating (R22 freon): 27.15 TR / 60.10 BHP at -40F / +20F. Max pressure differential: 175 PSIG. Max discharge temp: 300F. Weight: 4,600 lbs. Dimensions: 84 L x 60 W x 60 H (inches).
