1, difference: combined air conditioning unit This is an air conditioning unit composed of multiple functional sections. According to the different cold and heat sources, it can be divided into two types: frozen water type and direct evaporation type. The combined air conditioning unit includes air mixing, flow equalization, filtration, cooling, primary heating and secondary heating, dehumidification, humidification, blower, air return fan, water spraying and noise elimination.

2. Application: Combined air conditioning unit: suitable for large air conditioning systems, such as central air conditioning systems, to handle a large amount of air flow. Installed in places that need large-capacity air conditioning, such as computer rooms and large shopping malls. Because of its high modularity and diversity of functional sections, combined air conditioning units can meet a variety of different air treatment requirements, while local air conditioning units are suitable for smaller spaces or specific areas, and their air treatment requirements are relatively small.