Multi-split air conditioning and floor heating system and control method thereof

Abstract

The embodiment of the invention provides a multi-split air conditioning and floor heating system and a control method thereof, and relates to the technical field of air conditioners. According to the multi-split air conditioning and floor heating system and the control method thereof, heating effect of the multi-split air conditioning and floor heating system can be improved, and user experience is improved. The control method comprises the following steps: acquiring a current opening degree of a throttling element of a floor heating water module, and acquiring a difference value between set temperature and return air temperature of each current heating air conditioner indoor unit; acquiring a temperature difference characterization parameter according to the multiple difference values; acquiring an opening degree adjusting amount of the throttling element according to the corresponding relation between the temperature difference characterization parameter and the opening degree adjusting amount; acquiring the sum value of the current opening degree and the opening degree adjusting amount, and using the sum value as an updated opening degree; controlling the throttling element to perform throttling based on the updated opening degree; the current opening degree is the updated opening degree; taking a period from acquiring the difference value between the set temperature and the return air temperature of each current heating air conditioner indoor unit to controlling the throttling element to perform throttling based on the updated opening degree as a first period; and executing the first period after a preset duration. The multi-split air conditioning and floor heating system and the control method thereof is used for an air conditioner.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a multi-connected air conditioning floor heating system and a control method thereof. Background technique [0002] Multi-connected air conditioners have been more and more widely used because of their advantages such as energy saving, environmental protection, and convenient installation and use. With the advancement of science and technology, people have higher and higher requirements for comfort and air quality, especially for heating in winter. Compared with traditional air-conditioning power wind heating, floor heating with higher comfort is widely favored by users. In order to meet the higher requirements of users and have the advantages of multi-connected air conditioners and floor heating at the same time, a multi-connected air-conditioning and floor heating system that integrates multi-connected air conditioners and floor heating has appeared on the market. Its ...

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, when the multi-connected air-conditioning floor heating system is heating, if only the floor heating water module 103 is turned on for heating, it generally takes 2-3 hours to reach the set temperature; It usually takes 30 minutes to set the temperature

However, if the air-conditioning indoor unit 102 and the floor heating water module 103 are turned on at the same time for heating, since the amount of refrigerant reaching the air-conditioning indoor unit 102 and the floor heating water module 103 is evenly divided in the prior art, neither the air-conditioning indoor unit 102 nor the air-conditioning indoor unit 102 can be used. In the early stage of heating, the room reaches the set temperature quickly, and the floor heating water module 103 cannot be used to maintain the room temperature well in the later stage of heating, so that the heating effects of the air conditioner indoor unit 102 and the floor heating water module 103 are poor, and thus lead to poor user experience

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