Hot water returning system
AssigneeKyungdong Navien Co., Ltd.
InventorsChang Heoi Heo, Yong Min Song
Life of this patent
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Abstract
A hot water returning system according to the present disclosure includes a hot water generator that generates hot water, a hot water line that supplies the hot water to a source of demand, a water returning line that returns the hot water to the hot water generator for preheating the hot water in the hot water line, a pump which pumps the hot water for returning of the hot water, and a processor electrically connected to the pump, and the processor is configured to determine a need for preheating corresponding to whether it is necessary to preheat the hot water and a status for use of hot water corresponding to whether the hot water is supplied to a source of demand, and control the pump based on the need for preheating and the status for use of hot water.
Claims11
A hot water returning system comprising:
- a hot water generator configured to generate hot water;
- a hot water line configured to supply the hot water generated by the hot water generator to a source of demand;
- a water returning line configured to return water to the hot water generator for preheating the water in the hot water line;
- a pump disposed in any one of an inner line in the hot water generator, the hot water line, and the water returning line and configured to pump the water for returning of the water;
- and
- a processor electrically connected to the pump,
- wherein the processor is configured to:
- (i) determine a need for preheating and a status for use of hot water, wherein the status for use of hot water corresponds to whether hot water is being supplied to a source of demand;
- and
- (ii) control the pump based on the determination of the need for preheating and the status for use of hot water, and
- when the need for preheating is changed, control the pump to maintain an existing operational state when the status for use of hot water is determined to be that hot water is being supplied to the source of demand, and
- when the need for preheating is changed, control the pump to change the operational state when the status for use of hot water is determined to be that hot water is not being supplied to the source of demand.
Dependencies are inferred from the claim text.