Automatic diagnosis method of air conditioner and air conditioner

Abstract

The invention discloses an automatic diagnosis method of an air conditioner and the air conditioner. The automatic diagnosis method comprises the steps that the opening degree parameter of a regulating valve and corresponding water supply temperature and water return temperature are collected to determine a normal opening degree range; a maximum opening parameter of the regulating valve in the normal opening range is obtained; water supply temperature and water return temperature corresponding to all opening parameters in the normal opening range are obtained, and an average water supply and return temperature difference is calculated; and whether the water pump operation frequency is reasonable or not is judged according to the maximum opening parameter and the average water supply and return temperature difference. According to the automatic diagnosis method of the air conditioner and the air conditioner, the normal opening range is updated by regularly collecting the opening parameters and the water supply and return temperature, whether the operation frequency of the water pump is reasonable or not is judged according to the maximum opening parameter of the regulating valve inthe normal opening range and the average water supply and return temperature difference, so that automatic diagnosis and evaluation of a terminal system in the central air conditioner are realized; and optimization suggestions are automatically output to achieve reasonable operation of the terminal system, and the energy-saving level of the central air-conditioning system is further improved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an automatic diagnosis method for an air conditioner and the air conditioner. Background technique [0002] With the increasingly prominent energy problems in our country, the government attaches great importance to energy conservation and emission reduction. In the central air-conditioning system, because it is not easy to evaluate and diagnose, the terminal is a link that has been neglected all the time. In the actual operation of the actual terminal system, due to sensor errors, unreasonable air supply temperature setting values, and unreasonable control procedures, it is easy to cause very few valves to fully open. If the traditional method of calculating the maximum opening of the valve is used, it is easy to The diagnosis of the water pump is unreasonable, which in turn affects the pressure setting value of the entire system. Contents of the invention [0003] In order t...

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Problems solved by technology

[0003] In order to solve the above-mentioned technical problem of unreasonable frequency diagnosis of water pumps in the prior art, the present invention proposes an automatic diagnosis method of an air conditioner and an air conditioner

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