Patent ID: 8578724

Claim:
A heat pump comprising: a first heat exchanger; a second heat exchanger; a compressor fluidly coupled to said first heat exchanger and said second heat exchanger; a reversing valve fluidly coupled between said first heat exchanger and said second heat exchanger; an electronic expansion valve adjacent said second heat exchanger and fluidly coupled between said first heat exchanger and said second heat exchanger; and, a controller electrically coupled to said electronic expansion valve, said controller having a processor responsive to executable computer instructions for configuring said electronic expansion valve to a first position when said refrigerant flows from said reversing valve to said second heat exchanger, said processor also being responsive for modulating said electronic expansion valve when said refrigerant flows from said reversing valve to said first heat exchanger, said processor further being responsive to configuring said electronic expansion valve to a second position when said compressor is not operating.