But when it comes to wall-mounted split air conditioners can be popularized, mainly through movie theaters. Most Americans first encountered wall-mounted split air conditioners in movie theaters. Cinemas in the 1920s used wall-mounted split air-conditioning technology to promise to provide cool air to the audience, making wall-mounted split air-conditioning as attractive as the movie itself, and summer replaced winter as the peak season for watching movies . Subsequently, a large number of indoor entertainment venues open throughout the year, such as casinos, indoor sports fields and shopping malls, were attributed to the appearance of wall-mounted split air conditioners.
In the 1960s and 1970s, rare dry weather occurred in the United States. In order to solve the problem of cold and heat sources of wall-mounted split air conditioners in arid and water-deficient areas, the United States took the lead in developing air-cooled chillers, replacing cooling towers with air heat. Its English name is: Air Cool Chiller, or Chiller for short!
