Water heater and control method thereof

Abstract

The invention discloses a water heater. A big water tank communicates with a small water tank through a connecting pipe, and a first solenoid valve is arranged on the connecting pipe. The first end of a first electric three-way valve communicates with a water inlet of the big water tank through a connecting pipe, the second end of the first electric three-way valve communicates with a water inlet of the small water tank through a connecting pipe, and the third end of the first electric three-way valve is connected with a water outlet of an air energy heating device and a water outlet of a solar heating device through a connecting pipe. The first end of a second electric three-way valve communicates with a water return opening of the big water tank through a connecting pipe, the second of the second electric three-way valve communicates with a water return opening of the small water tank through a connecting pipe, and the third end of the second electric three-way valve is connected with a water inlet of the air energy heating device and a water inlet of the solar heating device through a connecting pipe. By the adoption of the water heater, the condition that sufficient hot water is supplied to users when the users use water temporarily is guaranteed, and waste caused when water in the big water tank is heated continuously during the off-peak period is avoided as well.

Description

technical field [0001] The invention relates to the field of water heaters, in particular to a water heater and a control method thereof. Background technique [0002] In order to meet the water demand of centralized water use units such as schools, hotels, factories, etc., water heaters are generally heated by a combination of air energy water heaters and solar water heaters, that is, combined water heaters. By combining the characteristics of air-energy water heaters and solar water heaters, the hot water needs of users can be met. [0003] Due to the lack of water resources and the large water consumption, the combined hot water machine will be equipped with a large water tank to fully supply users with water throughout the day. And to ensure that the large water tank of the combined water heater can meet the temperature required by the user, the user must heat the water in the large water tank to the required water temperature. However, when the water consumption is no...

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Problems solved by technology

[0004] The main purpose of the present invention is to solve the waste caused by the combination of solar energy water heater and air energy water heater in the prior art, which continuously heats the large water tank, and the heating time of the large water tank is too long to reach Technical issues with users' temporary water needs

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