Generally speaking, it is best to choose international brands for central air conditioning, because many technologies are patented abroad, but domestic brands are more secure after sale. In view of these two problems, it is best to choose joint venture brand products, such as foreign technology, domestic production, sales and after-sales products. Daikin and Hitachi are not clear. York's diversified online business in China seems to have adopted this model. York and johnson controls provide technical and R&D support, while Qingdao johnson controls is responsible for production, marketing and after-sales. In fact, central air conditioning is also doing very well in China, such as Hisense, Midea and Gree. Word of mouth and sales are good. However, if the budget is sufficient, it is recommended to install international brands, such as York, Hitachi, Daikin, etc., with wide business scope, mature technology, perfect after-sales service and more guaranteed quality. Moreover, they have their own patented technologies, such as Hitachi's compressor and York's frequency conversion control system, which are all developed by themselves and run reliably without technical problems.
In fact, the central air conditioning technology of each brand is similar, but the focus of domestic brands and foreign brands may be different in some aspects. For example, fluorine machines are mainly used in China, and water machines are more popular abroad. Fluorine machine is characterized by faster operation, more energy saving and more comfortable water machine. Of course, some foreign brands, such as York Central Air Conditioning, also produce fluorine machines, but mainly for the Asian market, especially China, the prices will be higher than those of domestic brands, but they have their own patented technologies, such as compressors.
The above is my suggestion, I hope it will help you. ?