Background An air-conditioner known as "30％ quality and 70％ installation",the quality of its installation is closely related to its service life and application effect.Although air-conditioner manufacturers attach high importance to installation,and there are often the installation requirements specified in the product manual or instructions for installation,there are still no unified,scientific and complete national standards and corresponding regulations for household air-conditioner,which results in the less standardized installation of air-conditioner and the unacceptable quality of installation,and also leaves a lot of hidden quality and safety problems.By means of extensive market survey and the after-sale information statistical analysis of air-conditioner,it is discovered that the nonstandard installation of air-conditioner may lead to the following problems and accidents.
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