Patent ID: 7272948

Claim:
A heat pump system comprising: at least one compressor, said compressor compressing refrigerant and delivering the refrigerant to a discharge line, said compressor receiving a refrigerant from a suction line; a flow control device for selectively controlling the flow of refrigerant from said discharge line, and for returning refrigerant to said suction line; an indoor heat exchanger and an outdoor heat exchanger, said flow control device being operable to send refrigerant from said discharge line to said outdoor heat exchanger, and then to said indoor heat exchanger when in a cooling mode, and operable to pass refrigerant from said compressor discharge line to said indoor heat exchanger and then to said outdoor heat exchanger when in a heating mode; and a reheat coil, said reheat coil being in communication with the refrigerant line to tap a refrigerant through a reheat coil, and return said refrigerant to said refrigerant line, an air moving device for passing air to an environment to be conditioned over said indoor heat exchanger, and at least a portion of said air over said reheat coil; an economizer circuit, said economizer circuit providing subcooling to a main flow of refrigerant by a tapped flow of refrigerant; and said economizer circuit includes a pair of economizer heat exchangers, with one economizer heat exchanger being dedicated to a heating mode and one being dedicated to a cooling mode.