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  2. Johnson Controls - Wikipedia

    en.wikipedia.org/wiki/Johnson_Controls

    The York brand has been owned since August 2005 by Johnson Controls, when it was sold to them for $3.2 billion. [75] [76] At the time of the acquisition, it was the world's largest independent manufacturer of air conditioning, heating, and refrigeration machinery. Its stock symbol was formerly YRK.

  3. Willis Carrier - Wikipedia

    en.wikipedia.org/wiki/Willis_Carrier

    cleanse the air; After several more years of refinement and field testing, on January 2, 1906, Carrier was granted U.S. patent 808,897 for an Apparatus for Treating Air, the world's first spray-type air conditioning equipment. It was designed to humidify or dehumidify air, heating water for the first function and cooling it for the second.

  4. Servel - Wikipedia

    en.wikipedia.org/wiki/Servel

    A Servel Robur air conditioner compressor unit on Governor's Island, New York City. Servel was an American manufacturer of heating and cooling appliances, founded in 1922. Founded by Colonel William McCurdy to produce refrigerators and named National Electric Products Company, the company adapted and shortened the name "Servel" from their ...

  5. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    The Mitsubishi model was the first air conditioner with a cross-flow fan. [64] [65] [66] In 1969, the first mini-split air conditioner was sold in the US. [67] Multi-zone ductless systems were invented by Daikin in 1973, and variable refrigerant flow systems (which can be thought of as larger multi-split systems) were also invented by Daikin in ...

  6. Carrier Global - Wikipedia

    en.wikipedia.org/wiki/Carrier_Global

    In 2001, Carrier was the "world's largest manufacturer of air-conditioning, heating, and refrigerator equipment" with a "total employment of 42,600" and a revenue of $8.9 billion. Carrier announced that it would be closing its DeWitt, New York plant. This led to the layoff of 1,000 employees. [10]

  7. Automotive air conditioning - Wikipedia

    en.wikipedia.org/wiki/Automotive_air_conditioning

    In 1939, Packard became the first automobile manufacturer to offer an optional air conditioning unit in its 1940 model year cars. [2] [3] These bulky units were manufactured by Bishop and Babcock (B&B), of Cleveland, Ohio and were ordered on approximately 2,000 cars. [4] The "Bishop and Babcock Weather Conditioner" also incorporated a heater.

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