Carrier Corporation

Scott T McDonough

Walter E Bujak, Jr

Anthony S Molavi

William T Slay

Christopher Young

A vapor compression system including: a compressor having a compressor suction port and a compressor discharge port configured to circulate a working fluid through a flow circuit; a first heat exchanger operably coupled to the compressor discharge port; a second heat exchanger operably coupled to the compressor suction port; a heat recovery heat exchanger operably coupled to the first and second heat exchangers wherein the heat recovery heat exchanger is configured to: receive the working fluid in a first phase from the first heat exchanger; receive the working fluid in a second phase from the second heat exchanger; exchange heat between the working fluid in the first phase and the second phase; and a bypass valve positioned between the heat recovery heat exchanger discharge and the second heat exchanger and defining a first flow path and a second flow path.

Vapor compression system and method for vapor oil recovery

A method of controlling operation of an air conditioning system () includes measuring a compressor speed of one or more chillers () of an air conditioning system and measuring a refrigerant pressure of the one or more chillers of the air conditioning system. A chiller load is calculated using the compressor speed and the refrigerant pressure. An air conditioning system includes one or more chillers. Each chiller includes a compressor (), a condenser () operably connected to the compressor, and an evaporator () operably connected to the compressor and the condenser. A controller () is operably connected to the one or more chillers and is configured to calculate a chiller load utilizing a measurement of compressor speed and a measurement of refrigerant pressure of the chiller.

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Charlotte, NC, United States of America

Scott T McDonough