商用和家用这是两个不同的概念。
Business and home are two different concepts.
其实商用中央空调一直以来都没有一个相对比较明确的概念，流水槽钢模具 不锈钢铸件 扭王字块模具 井盖钢模具 标志桩模具 调匝式消弧线圈 风冷控制柜 烤漆龙骨常常被认为是制冷空调市场的一个细分子行业。现在比较一致的观点是，可以纳入商用空调范畴的产品包括：户式中央空调产品、部分传统中央空调产品以及部分家用空调。目前商用空调普遍采用直流变频技术和R410A环保冷媒，能效达国家一级标准。
In fact, commercial central air conditioning has not been a relatively clear concept, which is often regarded as a small molecule industry in the refrigeration and air conditioning market. Now the more consistent view is that the products that can be included in the category of commercial air conditioning include: household central air conditioning products, some traditional central air conditioning products and some household air conditioning products. At present, DC frequency conversion technology and R410A environmental protection refrigerant are widely used in commercial air conditioners, and the energy efficiency reaches the national first class standard.
而家用中央空调是一个小型化的独立空调系统。家用中央空调由一台主机通过风管或冷热水管连接多个末端出风口，将冷、暖气送到不同区域，来达到调节室内空气的目的。家用中央空调结合了大型中央空调的便利、舒适、高档以及传统小型分体空调的简单灵活等众多优势，适用于别墅、公寓、家庭住宅和各种小型工业、商业场所。
The household central air conditioning is a small independent air conditioning system. The household central air conditioner is connected with several end outlets by a main machine through air duct or hot and cold water pipe to send cold and warm air to different areas to achieve the purpose of regulating indoor air. Household central air conditioning combines the convenience, comfort, high-grade of large central air conditioning and the simple and flexible of traditional small split air conditioning, which is suitable for villas, apartments, family houses and various small industrial and commercial places.
其次，功率和制冷形式是不同的
Secondly, power and refrigeration form are different
商用中央空调的结构与家用中央空调的结构相差不多。之所以区分成商用和家用，主要是由于功率差距大形成的制冷形式不一样。
The structure of commercial central air conditioning is not much different from that of household central air conditioning. The reason why it can be divided into commercial and domestic use is mainly due to the large power gap between them.
商用中央空调的规格范围大，从3匹到上千冷吨都有，型式也更多样，多数为三相动力电。家用中央空调一般在10匹以下，单相电居多，主要是多联机和小水机。之所以会出现这样的差异，主要是使用的面积不一样。
Commercial central air conditioning has a wide range of specifications, ranging from three to thousands of cold tons, and more diverse types, most of which are three-phase power. Household central air conditioning is generally less than 10 horsepower, single-phase electricity is in the majority, mainly multi connected and small water machine. The main reason for this difference is that the area used is different.