Heat pump apparatus
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United States of America Patent
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Dec 27, 2016
Grant Date -
May 1, 2014
app pub date -
Oct 24, 2013
filing date -
Oct 29, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A heat pump apparatus is provided. The heat pump raises the water temperature during a hot-water supply without using a separate heat source such as a heater. The heat pump apparatus includes an outdoor unit including a first compressor, a first heat exchanger, and a first expansion valve. The heat pump apparatus includes an indoor unit including a second heat exchanger and a second expansion valve, a hydro unit including a second compressor, a third heat exchanger, a fourth heat exchanger, a fifth heat exchanger, a third expansion valve, a fourth expansion valve, and a fifth expansion valve. The heat pump apparatus includes a refrigerant flow path switching unit to switch among flow paths, and a water flow path switching unit to switch between flow paths of the water.
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