Control method of water heater and water heater

Abstract

The invention discloses a control method of a water heater and the water heater. The control method of the water heater comprises the following steps: S1, the water heater is started; S2, whether a zero cold water mode is selected or not is judged, and if the zero cold water mode is selected, a step S3 is executed; S3, a remote controller of the water heater instructs a water way stop valve to be opened, a water pump of the water heater is opened, and a heat exchanger of the water heater heats a circulating water flow; S4, whether a circulating water pipe is full of hot water or not is judged, and if the circulating water pipe is full of hot water, a step S5 is executed; S5, the remote controller instructs the water way stop valve to be closed and reports closing information of the water way stop valve to a controller of the water heater; S6, the controller instructs the water pump to stop; S7, whether a water flow exists in the circulating water pipe or not is judged, and if no water flow exists in the circulating water pipe, a step S8 is executed; and S8, the heat exchanger stops heating. The water heater provided by the invention is operated by adopting the control method.

Description

technical field [0001] The invention relates to the technical field of kitchen appliances, in particular to a water heater control method and the water heater. Background technique [0002] Existing zero-cold water heaters usually heat the water in the waterway when they are turned on, and stop heating until the water in the entire waterway reaches the preset temperature. In this way, when users need to use cold water, they need to Waiting for the hot water in the waterway to run out before getting cold water, on the one hand increases the waiting time for users, and on the other hand leads to a waste of resources. As for the water heater with supercharging function, due to the operation of the water pump, there is always a water flow signal in the water circuit, which will also cause the water heater to keep heating the water in the water circuit. On the one hand, the boosting effect is poor, and on the other hand It also further leads to a waste of resources. [0003] Th...

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Problems solved by technology

[0004] The purpose of the present invention is to solve one of the problems existing in the related art at least to a certain extent. Therefore, the present invention proposes a water heater control method, which solves the problem that the zero cold water water heater in the prior art must make the entire waterway Preheating is stopped only when the water is full of hot water, which leads to the problem that when the user needs to use cold water, the water heater cannot immediately flow out cold water and needs to wait for a long time, resulting in the waste of hot water

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