Ac Units By Nick124363 Jul 17, 1902 First Ac began working The first air conditioner, designed and built in Buffalo by Carrier, began working on 17 July 1902. Sep 10, 1902 AC units Modern air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical air conditioning was invented and used in 1902 by American inventor Willis Carrier Jan 1, 1906 The name Air conditioning was coined In 1906, Stuart W. Cramer of Charlotte, North Carolina was exploring ways to add moisture to the air in his textile mill. Cramer coined the term "air conditioning", Jan 1, 1920 First residental air conditioner The introduction of residential air conditioning in the 1920s helped enable the great migration to the Sun Belt in the United States. Jan 1, 1928 The first non-flammable, non-toxic chlorofluorocarbon gas Thomas Midgley, Jr. created the first non-flammable, non-toxic chlorofluorocarbon gas, Freon, in 1928. Jan 1, 1933 the first private home to have air conditioning Shortly thereafter, the first private home to have air conditioning was built in Chapel Hill, North Carolina in 1933. Jan 1, 1940 First central air conditioning Realizing that air conditioning would one day be a standard feature of private homes, particularly in regions with warmer climate, David St. Pierre DuBose (1898-1994) designed a network of ductwork and vents for his home Meadowmont, all disguised behind intricate and attractive Georgian-style open moldings. This building is believed to be one of the first private homes in the United States equipped for central air conditioning.[12] Jan 1, 1945 First portable ac unit Robert Sherman of Lynn, Massachusetts invented a portable, in-window air conditioner that cooled, heated, humidified, dehumidified, and filtered the air. Jan 1, 1950 Sales increased dramatically Residential sales expanded dramatically in the 1950s. Jan 1, 1952 First through the wall ac unit [The first practical through-the-wall air conditioning unit was invented by engineers at Chrysler Motors and offered for sale starting in 1935.
