RESIDENTIAL HEAT PUMP WATER HEATER

WIPO Patent Application WO/2010/093516

A3

A heat pump water heater and systems and methods for its control are disclosed. The systems are configured to heat water within a water storage tank of a heat pump water heater wherein a controller within the system is operatively connected to a plurality of heat sources including at least one electric heating element and a heat pump and sensors in order to selectively energize one of the plurality of heat sources. The controller is configure to process data representative of the temperature of water within the tank near the top of the water storage tank, and rate of wafer flowing out of the water storage tank, in order to automatically selectively energize the heat sources. The selection of heat sources by the controller is determined by a mode of operation selected by the user and the data processed by the controller in view of the selected mode of operation.

NELSON JONATHAN D (US)
TSAI CRAIG LUNG-PEI (US)
KERN JEFFREY ALAN (US)
RODRIGUEZ ELIEL FRESCO (US)
BEYERLE MICHAEL T (US)
WATKINS DEREK LEE (US)
HAMEL TIMOTHY ALLEN (US)
ZENTNER MARTIN (US)

PCT/US2010/022097

April 05, 2012

January 26, 2010

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GEN ELECTRIC (US)
NELSON JONATHAN D (US)
TSAI CRAIG LUNG-PEI (US)
KERN JEFFREY ALAN (US)
RODRIGUEZ ELIEL FRESCO (US)
BEYERLE MICHAEL T (US)
WATKINS DEREK LEE (US)
HAMEL TIMOTHY ALLEN (US)
ZENTNER MARTIN (US)

F25B30/02; F24H4/04; F24H9/20

WO1999053248A1

1999-10-21

US20070157634A1	2007-07-12
US5052186A	1991-10-01
US4363221A	1982-12-14

ZHANG, Douglas, D. et al. (Global Patent Operation2 Corporate Drive, Suite 64, Shelton CT, US)

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