Method and device for detecting fluorine deficiency in multiple air conditioners

Abstract

The invention discloses a method and a device for detecting fluorine deficiency of an air conditioner multi-line unit. Among them, the method includes: judging whether the multi-connected air conditioner meets the preset fluorine-deficiency detection conditions; After the air conditioner runs for a preset time, the working temperature of the multi-unit air conditioner is collected through the temperature sensing package of the multi-unit air conditioner; the fluorine deficiency detection result of the multi-unit air conditioner in the working mode is obtained according to the operating temperature; The fluorine detection result generates a prompt message indicating whether the multi-connected air conditioner is deficient in fluorine. The invention realizes the detection of fluorine deficiency through the temperature-sensing package of the multi-connected air conditioner, thereby achieving the purposes of simplifying process design and saving costs.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a method and device for detecting fluorine deficiency in multi-line air conditioners. Background technique [0002] At present, multi-connected air conditioners detect the fluorine deficiency of multi-connected air conditioners based on the outdoor temperature and the saturation temperature corresponding to high and low pressures. The temperature sensing package is one of the components of the thermal expansion valve of the multi-connected air conditioner. It is usually tied to the outlet pipe of the evaporator to sense the temperature of the outlet pipe, and convert the temperature information into pressure information and send it to the valve body to achieve regulation. The role of flow. [0003] In the prior art, the fluorine deficiency detection of multiple air conditioners must rely on high and low pressure sensors. Under the premise of achieving the detection purpose and ac...

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Problems solved by technology

[0003] In the prior art, the fluorine deficiency detection of multiple air conditioners must rely on high and low pressure sensors. Under the premise of achieving the detection purpose and achieving the same detection effect, the industrial design and manufacture of high and low pressure sensors not only make the industrial design and The manufacturing is complicated, and the production cost is increased, and the difficulty of secondary processing is exacerbated

[0004] For the above problems, no effective solution has been proposed

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