HEAT PUMP WATER HEATER

PROBLEM TO BE SOLVED: To provide a heat pump water heater causing no lowering of the temperature of hot water in the upper part of a hot water storage tank even just after starting operation. SOLUTION: This heat pump water heater returns water in the hot water storage tank 1 to the upper part of the...

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Bibliographic Details
Main Author TSURUTA TORU
Format Patent
LanguageEnglish
Published 02.10.2003
Edition7
Subjects
BLASTING
COMBINED HEATING AND REFRIGERATION SYSTEMS
FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
RANGES
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
VENTILATING
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a heat pump water heater causing no lowering of the temperature of hot water in the upper part of a hot water storage tank even just after starting operation. SOLUTION: This heat pump water heater returns water in the hot water storage tank 1 to the upper part of the hot water storage tank 1 via water supply return pipes 5 and 11 by heating the water by introducing the water to a heat pump unit 30 via a water supply forward pipe 4 by a supply water circulating pump 6. When a detecting temperature of a supply water return temperature 33 is lower than a detecting temperature of an upper temperature sensor 41 of the hot water storage tank 1, since a three-way valve 8 is switched to the bypass pipe 10 side, only hot water is supplied to the upper part of the hot water storage tank 1 so that the temperature of the hot water of the upper part in the hot water storage tank 1 is not lowered. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020077020