Method for judging refrigerant content, air conditioner and storage medium

Abstract

The invention provides a refrigerant content judgment method, an air conditioner and a storage medium. The method comprises the steps that when a refrigerant overhaul instruction is received, the air conditioner system is controlled to operate in a refrigeration mode, an electronic expansion valve is controlled to operate within a first duration according to the set working condition and the air return temperature, and a compressor and an indoor fan are controlled to operate according to the set working condition; outdoor environment temperature, low pressure, high pressure and condenser outlet temperature are obtained, and high pressure saturation temperature is determined based on the high pressure; and when the outdoor environment temperature, the low pressure, the high pressure, the condenser outlet temperature and the high pressure saturation temperature meet the refrigerant lacking condition, refrigerant lacking prompt information is generated. According to the method and the device, various parameters such as the outdoor environment temperature, the low-pressure pressure, the high-pressure pressure and the condenser outlet temperature can be comprehensively referred to in the process of generating the refrigerant shortage prompt information, and the accuracy of refrigerant filling control over the air conditioning system is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning control, in particular to a method for judging refrigerant content, an air conditioner and a storage medium. Background technique [0002] In the air conditioning system, too much or too little refrigerant will easily lead to problems such as reduced unit life, performance degradation, or even failure to operate. The appropriate refrigerant charge is the basis for reliable and efficient operation of the air conditioning system. In the traditional solution, the refrigerant charging amount of the air conditioning system is determined through the specification and length of the piping connecting the indoor and outdoor units. However, if the piping specification cannot be obtained, the refrigerant charging amount cannot be obtained. In the prior art, there is provided a solution for automatically judging the charging amount of the refrigerant, and then realizing charging of the refrigerant. ...

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a method for judging refrigerant content, an air conditioner, and a storage medium, so as to solve the problem of low detection accuracy of refrigerant amount existing in the refrigerant charging control scheme

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