초록 ▼

An economical full capacity integrated heat pump water system which utilizes the basic components of conventional heat pump systems and a hot water heat exchanger incorporated in the system. The invention may be operated in three refrigerant flow configurations, with five associated operational mode

An economical full capacity integrated heat pump water system which utilizes the basic components of conventional heat pump systems and a hot water heat exchanger incorporated in the system. The invention may be operated in three refrigerant flow configurations, with five associated operational modes. In one configuration, the refrigerant flow is from the compressor, through the hot water heat exchanger, through the outdoor heat exchanger, through an expansion device, through the indoor heat exchanger and back to the compressor. In a second configuration, the refrigerant flow is from the compressor, through the hot water heat exchanger, through the indoor heat exchanger, through an expansion device, through the outdoor heat exchanger, and back to the compressor. In a third configuration, for the water heating only mode, the refrigerant flow is from the compressor, through the hot water heat exchanger, through an expansion device designed specifically for the range of refrigerant temperatures for hot water heating, through the outdoor heat exchanger, and back to the compressor.

대표청구항 ▼

An integrated heat pump water heater system for providing either heating or cooling of an interior space, and heating water in conjunction with either the heating or cooling cycle or independently, by means of a refrigerant flowing through the system, comprising: a compressor; a first heat exchanger

An integrated heat pump water heater system for providing either heating or cooling of an interior space, and heating water in conjunction with either the heating or cooling cycle or independently, by means of a refrigerant flowing through the system, comprising: a compressor; a first heat exchanger means for providing heat to the interior space in the heating cycle and for removing heat during the cooling cycle by heat transfer with a refrigerant therein; a second heat exchanger means for transferring heat to or from a refrigerant therein by heat exchanger with an exterior medium; a third heat exchanger means for transferring heat from a refrigerant therein to water circulated therethrough; a first expansion device; a second expansion device; a third expansion device; refrigerant flow connection means connected between said compressor, said heat exchanger means, and said expansion devices which may be controllably connected in alternate configurations whereby, in a first configuration the refrigerant flow is sequentially from said compressor, through said third heat exchanger means, through said second heat exchanger means, through said first expansion device, through said first heat exchanger means, and back to said compressor, in a second configuration the refrigerant flow is sequentially from said compressor, through said third heat exchanger means, through said first heat exchanger means, through said second expansion device, through said second heat exchanger means, and back to said compressor, in a third configuration the refrigerant flow is sequentially from said compressor, through said third heat exchanger means, through said third expansion device, through said second heat exchanger means, and back to said compressor; flow connection control means for configuring said refrigerant flow connection means; and cycle control means for controlling the operation of said compressor and the rate of flow of water through said third heat exchanger means based on the configuration of the system, the temperature of the water to be heated, and the temperature of the interior space.