Air conditioner and control method thereof

Abstract

The invention discloses an air conditioner and a control method thereof. The control method comprises the following steps that S1, the air conditioner runs; s2, the current temperature area where the air conditioner is located is judged according to the outdoor environment temperature, and the temperature area comprises a high-temperature area, a medium-temperature area and a low-temperature area; s3, according to the current temperature zone where the air conditioner is located, the frequency limiting value of each air speed gear of an outdoor fan of the air conditioner corresponding to a compressor of the air conditioner is adjusted to the preset frequency limiting value, corresponding to each air speed gear, of the corresponding temperature zone; and S4, according to the received air speed instruction of the air conditioner and the current operation frequency of the compressor, the air speed of the outdoor fan and the operation frequency of the compressor are adjusted. Therefore, partitioning is carried out according to different outdoor environment temperatures, the limiting frequency of the compressor under the air speed of the outdoor draught fan of each gear is independently set in different temperature zones, the operation performance of the whole machine under the same air speed in the different temperature zones can be effectively improved, the capacity requirement of a whole machine system is considered, and the problem of condensate water is effectively solved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof. Background technique [0002] Inverter air conditioners will limit the operating frequency of the compressor to varying degrees according to some preset conditions. For example, the operating frequency of the compressor is limited according to the speed of the indoor unit fan, the operating frequency of the compressor is limited according to the temperature of the indoor coil, the operating frequency of the compressor is limited according to the temperature of the outdoor coil, and the operating frequency of the compressor is limited according to the running time of the compressor. However, the method of limiting the frequency in the related art is single, which cannot balance the capacity requirements of the whole machine and the reliability of the operation of the whole machine. Contents of the invention [0003] The ...

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