Patent ID: 8726682
Filing Date: 2014-05-20
Classification: F24D,F24F,F25B,Y02A,Y02B

Abstract:
1. A hybrid multi-source heat pump system, comprising: a heat pump; a solar/air heat exchanger; a ground heat exchanger; a plumbing network that hydraulically interconnects said heat pump, said solar/air heat exchanger and said ground heat exchanger, wherein a heat transfer fluid circulates through said plumbing network; temperature sensors for monitoring temperatures of said heat transfer fluid in said solar/air heat exchanger and said ground heat exchanger; at least one pump for circulating said heat transfer fluid through said plumbing network; valves disposed within said plumbing network that can selectively isolate said solar/air heat exchanger, and said ground heat exchanger within said plumbing network; a systems controller coupled to said temperature sensors, said valves, and said at least one pump, wherein said systems controller operates in multiple modes of operation, wherein said multiple modes of operation include; a fifth mode of operation where said heat pump is isolated and said heat transfer fluid circulates only between said solar/air heat exchanger and said ground heat exchanger.