"Central air conditioning water machine" is a vague concept. Traditionally, it refers to air-cooled screw units and water-cooled screw units, that is, large central air conditioning units. Now this concept has been extended to air-cooled modular units, household drinking fountains, air trays, air conditioning boxes, and even water source heat pump units. When talking about the central air-conditioning water machine, it is best to attach the specific model of the product.
Water machine refers to three types of products: water-cooled cold and hot air, air-cooled cold and hot water and water-cooled cold and hot water.
Corresponding to the water machine is the fluorine machine, that is, the "air-cooled cold and hot air type" central air conditioning unit, such as multi-line and air-cooled pipeline machine.