Detection and protection method of lack of fluorine of air-conditioners
A detection method and air-conditioning technology, which are applied in heating methods, space heating and ventilation, and program control in sequence/logic controllers, etc., can solve the problems of difficult operation and low judgment accuracy for manual fluorine deficiency detection, and achieve guaranteed Service life, the effect of solving operational difficulties and avoiding damage
Inactive Publication Date: 2009-09-09
宁波海诚电器有限公司
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The invention discloses a detection and protection method of lack of fluorine of air-conditioners, comprising the following steps: a compressor runs under the state of sufficient fluorine and the absolute value of the difference value between the temperature value of an internal coil tube of the compressor and the temperature value of the environment is set at least as delta T0; cooling or heating mode is selected; after the compressor is started up to run for some time, the temperature values of the internal coil tube and the environment are measured and the absolute value delta T1 of the difference value between the temperature values of the internal coil tube and the environment is compared with the delta T0; if delta T1 is more than or equal to delta T0, the air-conditioners are diagnosed to not lack fluorine; if delta T1 is less than delta T0, the air-conditioners are diagnosed to lack fluorine and alarm; after the compressor keeps running for some time, the temperature values of the internal coil tube and the environment are measured again and the absolute value delta T2 of the difference value between the temperature values of the internal coil tube and the environment is compared with the delta T0; if delta T2 is more than or equal to delta T0, the air-conditioners are diagnosed to not lack fluorine and the alarm is gotten rid of; if delta T2 is less than delta T0, the air-conditioners are diagnosed to lack fluorine and stop running. The method solves the problems of difficult operation of artificially detecting lack of fluorine and low diagnosis accuracy.
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