Substitution control method for fault air suction sensor in air conditioner and air conditioner thereof

Abstract

The invention discloses a substitution and control method for a fault suction gas sensor in an air conditioner and the air conditioner. The air conditioner comprises a suction gas sensor for measuring the suction gas temperature of a compressor and a gas pipe sensor for measuring the gas pipe temperature; when the suction gas sensor of the air conditioner has fault and a main control module corrects the detection value of the gas pipe sensor arranged on the gas pipe, substitutes the detection value of the suction gas sensor and participates in the control and calculation while reporting the error to the outside, thereby ensuring that the unit of the entire machine of the air conditioner can continuously run with no stop while reporting the error and waiting for maintenance, further avoiding the inconvenience brought to users caused by disorderly closedown and improving the service comfort of products. The substitution and control method is particularly suitable for air conditioners ofwhich one indoor unit drives multiple outdoor units.

Description

Alternative control method for faulty suction sensor in air conditioner refrigeration mode and air conditioner technical field The invention belongs to the technical field of air-conditioning and refrigeration engineering, and relates to a one-to-multiple air conditioner, in particular, to a method to keep the air conditioner running continuously when the suction sensor in the one-to-multiple air conditioner fails. A temporary alternative control method. Background technique Air conditioners, especially one-to-multiple air conditioners, their main control program needs to use the parameter values ​​measured by temperature sensors distributed at various control points in the refrigeration system to participate in control calculations or make judgments during operation, such as gas pipe sensors and liquid pipe sensors , suction sensor, coil sensor and defrosting sensor, etc., so as to realize the control of compressor, electronic throttle expansion valve, fan and other compo...

AI Technical Summary

Problems solved by technology

In order to solve the problem that the existing air conditioner adopts the method of shutting down and reporting an error when the sensor fails, which affects the daily use of the user, the present invention proposes an alternative control method for the air conditioner failure sensor in the cooling mode, specifically in the air conditioner When the suction sensor used to measure the suction temperature of the outdoor compressor fails, the method of correcting the measured value of the gas pipe sensor is used to replace the measured value of the suction sensor, and then participates in the control calculation of the main control module. In order to ensure that the air conditioner continues to run

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