Hybrid boiler for low-carbon and Eco-friendly and the control method thereof

摘要

The present invention relates to a low-carbon and eco-friendly hybrid boiler and a control method thereof. According to the present invention, a heating operation and a hot water supply operation are separately performed in a boiler for home use, such that the heat capacity of the boiler is enhanced, and the size of the boiler can be reduced. The control method of the low-carbon and eco-friendly hybrid boiler comprises: a step (a) in which a control unit determines a heating start state of the hybrid boiler according to an operation state of an input switch or the heating temperature detected by a heating temperature sensor; a step (b) in which the control unit determines a hot water supply start state of the hybrid boiler according to a hot water supply state and the temperature of supplied hot water detected by a hot water supply sensor and a hot water supply temperature sensor; and a step (c) in which the control unit controls first and second three way valves provided in the electric boiler such that the heating operation is performed by the gas boiler, and the hot water supply operation is performed by an electric boiler when the heating operation is determined in the step (a), and the hot water supply operation is determined in the step (b). Therefore, when the heating operation and the hot water supply operation are required at the same time, it is controlled that the heating operation is performed by the gas boiler, and the hot water supply operation is performed by the electric boiler, such that the heat capacity of the compact boiler can be enhanced.