Domestic hot water delivery system
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United States of America Patent
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-
Feb 28, 2017
Grant Date -
May 22, 2014
app pub date -
Nov 15, 2013
filing date -
Nov 16, 2012
priority date (Note) -
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Abstract
A preheat tank to which a heat exchanger is operatively coupled receives water from a distribution subsystem. A water distribution subsystem and tempered fluid distribution subsystem provide domestic water and tempered fluid, respectively, to a plurality of spaces. Air handlers transfer heat between the tempered fluid and the spaces for heating and cooling. A controller coupled to the tempered fluid subsystem, the heat exchanger and a refrigerator has: (i) a first mode, wherein the fluid is routed through the heat exchanger, to pass heat to the preheat tank; and (ii) a second mode, wherein the fluid is routed through an evaporator of the refrigerator, to pass heat to the refrigerant. A storage tank is coupled to the preheat tank to receive water therefrom and is coupled to the condenser of the refrigerator such that heat rejected by the condenser is passed to the contents of the storage tank.
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