Air conditioner and refrigerant circulation abnormality protection control method for same

Abstract

The invention provides an air conditioner and a refrigerant circulation abnormality protection control method for the same. Under the condition of refrigerant circulation abnormalities caused by closing of a shut-off valve of the air conditioner, a controller protects a compressor timely to avoid undesirable operation and frequent on-off operation, various components of the air conditioner are protected against damage, and the reliability performance is improved. A refrigerant circulation abnormality protection control device of the air conditioner comprises a sampling module, a data processing module, an execution module and an output display module; once the data processing module determines that refrigerant circulation has abnormal faults, the execution module controls the air conditioner to conduct protective shutdown after receiving instructions of the data processing module; whether protective shutdown of the air conditioner occurs continuously for n times is judged, if protective shutdown of the air conditioner occurs continuously for n times, the execution module controls the air conditioner to be unable to resume operation automatically, and the operation can only be resumed through reenergizing or remote-control shutdown and starting-up; the output display module receives instructions of the data processing module or the execution module and controls a display device of an indoor unit of the air conditioner to display refrigerant circulation abnormality fault codes.

Description

technical field [0001] The invention relates to the technical field of air conditioner control, in particular to an air conditioner and a method for protecting and controlling abnormal refrigerant circulation of the air conditioner. Background technique [0002] At present, when the air conditioner is in the after-sales state and during the user's use, especially when the air conditioner is running for the first time after installation, there is a situation that the air conditioner shut-off valve has been closed but not opened, resulting in abnormal operation of the air conditioner after startup, frequent maintenance shutdowns, and long-term failure. Operation will cause damage to components such as the compressor. [0003] However, in the prior art, there are no relevant protective measures and methods for displaying faults for the above-mentioned situation; once the fault occurs, it is inconvenient for user identification and after-sales maintenance personnel to check. C...

AI Technical Summary

Problems solved by technology

[0002] At present, when the air conditioner is in the after-sales state and during the user's use, especially when the air conditioner is running for the first time after installation, there is a situation that the air conditioner shut-off valve has been closed but not opened, resulting in abnormal operation of the air conditioner after startup, frequent maintenance shutdowns, and long-term failure. Running will cause damage to parts such as the compressor

[0003] However, in the prior art, there are no relevant protective measures and methods for displaying faults for the above-mentioned situation; once the fault occurs, it is inconvenient for user identification and after-sales maintenance personnel to check

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