The Copelametic compressor was designed so that the refrigerant suction pass through the motor of the compressor to cool the compressor. ... Copelametic compressor designed with refrigerant cooled are E, M, N, 3R, 4R, 6R, and 9R.
What is a hermetic compressor motor?
Hermetic compressor: A hermetic or sealed compressor is one in which both compressor and motor are confined in a single outer welded steel shell. The motor and compressor are directly coupled on the same shaft, with the motor inside the refrigeration circuit.