This document introduces the technical specifications and performance characteristics of the Emerson brand's semi-hermetic piston compressor CH-1500. This compressor is suitable for R22 refrigerant and has a nominal input power of 15HP. The discharge port and suction port sizes are 1-1/8 inch and 1-1/2 inch respectively. The dimensions of the compressor are 800mm in length, 356mm in width, and 431mm in height, with a net weight of 181kg and a gross weight of 192kg. Specific technical parameters include starting current, maximum operating current, displacement, oil charging, etc. The document also provides dimension and wiring diagrams of the compressor, as well as application guidelines and configuration information.