Air-conditioning apparatus
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United States of America Patent
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Aug 25, 2015
Grant Date -
Aug 21, 2014
app pub date -
Apr 25, 2014
filing date -
Oct 29, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
In an air-conditioning apparatus, a heat source side heat exchanger, intermediate heat exchangers, and use side heat exchangers are separately formed and adapted to be disposed at separate locations, respectively. There is provided a defrosting operation function to melt frost attached around the heat source side heat exchanger, and a heating function during defrosting operation that drives a pump to circulate a heat medium and supply heating energy to the use side heat exchangers in need of heating to perform heating operation. The defrosting operation function can be executed by switching a four-way valve to cooling side to introduce a high-temperature high-pressure refrigerant flowed out of the compressor into the heat source side heat exchanger.
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