Integrated heat pump system

Details Integrated heat pump system Integrated heat pump system

1987-02-20

1988-03-01

King, Lloyd L.

Refrigeration

Disparate apparatus utilized as heat source or absorber

With vapor compression system

622387, 62278, F25B 2700

Patent

active

047277270

ABSTRACT:
An integrated heat pump and hot water system having a refrigerant to water heat exchanger that includes first and second refrigerant circuits in heat transfer relation with a hot water circuit for circulating water from a storage tank through the heat exchanger. One refrigerant circuit is connected between the discharge side of the refrigerant compressor and the heat pump reversing valve. The second circuit is connected between the suction side of the compressor and the indoor coil side of the heat pump expansion device. A pair of control valves are positioned to provide for water heating when the heat pump is in either a heating or cooling mode of operation or, alternatively, when the heat pump is not required to provide air conditioning. In addition, energy in the hot water on the water side of the system is used to evaporate refrigerant in a novel defrost cycle.

REFERENCES:
patent: 4158950 (1979-06-01), McCarty
patent: 4399664 (1983-08-01), Devosier
patent: 4493193 (1985-01-01), Fisher
patent: 4598557 (1986-07-01), Robinson et al.
patent: 4625524 (1986-12-01), Kimura et al.
patent: 4646537 (1987-03-01), Crawford

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