Patent ID: 7178352

Claim:
A system comprising: a compressor comprising: a housing; a first rotor held by the housing for rotation about a first axis; a second rotor held by the housing for rotation about a second axis; a third rotor held by the housing for rotation about a third axis; a first compression path having suction and discharge ends; end a second compression path, independent of the first compression path and having suction and discharge ends; at least one condenser; at least one expansion device; at least one evaporator; and a plurality of conduits coupling the compressor, the at least one condenser the at least one expansion device, and the at least one evaporator so as to define first and second at least partially separate circuits respectively associated with the first and second compression paths, wherein at least one of: the discharge end of the first compression path is at a different pressure than the discharge end of the second compression path; and the suction end of the first compression path is at a different pressure than the suction end of the second compression path.