Copeland Corporation

Carl Herman Knapke

John P Sheridan

Rajan Rajendran

Richard Edgar Eckels

A compressor system includes a pair of compressors located in a common shell. A common drive shaft drives both compressors and the drive shaft is powered by a single motor. One or both of the compressors can be equipped with a pulse width modulated capacity control system and a vapor injection system. When one compressor is equipped with these systems, the capacity can be varied between 50% and 110%. When both compressors are equipped with these systems, the capacity can be varied between 0% and 120%.

Capacity modulation for plural compressors

A terminal assembly for a hermetic compressor having a shell includes a terminal block secured to the shell. A terminal fence surrounds the terminal block and is also fixedly secured to the shell. An intermediate gasket sealingly engages both the shell and the terminal block. A power plug is electrically connected to the terminal block and sealingly engaged by the intermediate gasket. A terminal block cover is secured to the shell in order to retain the connection between the various components. The terminal assembly once properly installed is capable of sealing the electrical connection for the compressor from direct contamination by high humidity and salt water spray normally experienced during trans-oceanic shipping.

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Maplewood, OH, United States of America

Carl Herman Knapke