Wall-mounted split air conditioners are divided into single-cooling wall-mounted split air conditioners and dual-purpose wall-mounted split air conditioners. The working principle is the same. Before wall-mounted split air conditioners, most of the commonly used refrigerants are Freon. The characteristic of Freon is that when it changes from a gaseous state to a liquid state, it releases a lot of heat. When changing from liquid to gas, it will absorb a lot of heat. (That is, the wall-mounted split air conditioner is designed according to this principle.
The compressor compresses the gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant, and then sends it to the condenser (outdoor unit) to dissipate heat and becomes a normal temperature and high-pressure liquid refrigerant, so the outdoor unit blows out hot air.
