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  2. R-407C - Wikipedia

    en.wikipedia.org/wiki/R-407C

    R407C offers several notable benefits: Replacement for R22: Often used as a direct substitute for R22 in many existing systems, facilitating upgrades with minimal system modifications. High Efficiency: Provides effective cooling with good energy efficiency.

  3. List of New York City Subway R-type contracts - Wikipedia

    en.wikipedia.org/wiki/List_of_New_York_City...

    R22: 7300–7749 1957–1958 ... Door operator mechanism R65: Pump cars PC01–PC03 ... Replace Coney Island Yard cranes (planning MW104111)

  4. Chlorodifluoromethane - Wikipedia

    en.wikipedia.org/wiki/Chlorodifluoromethane

    Worldwide production of R-22 in 2008 was about 800 Gg per year, up from about 450 Gg per year in 1998, with most production in developing countries. [2] R-22 use is being phased out in developing countries, where it is largely used for air conditioning applications.

  5. Robinson R22 - Wikipedia

    en.wikipedia.org/wiki/Robinson_R22

    As a temporary measure, in 1982, R22 operators received a kit from Robinson that was installed in the cockpit and on the belt tension actuator, isolating the tensioning circuits and locking the clutch/drive system at take-off tension. The problem was ultimately solved by replacing the four individual v-belts with two dual v-belts.

  6. Robinson Helicopter Company - Wikipedia

    en.wikipedia.org/wiki/Robinson_Helicopter_Company

    The Robinson Helicopter Company, based at Zamperini Field in Torrance, California, is an American helicopter manufacturer. As of 2024, Robinson produces three models: the two-seat R22, the four-seat R44, both of which use Lycoming piston engines, and the five-seat R66, which use Rolls-Royce turbine engines.

  7. R-410A - Wikipedia

    en.wikipedia.org/wiki/R-410A

    R-410A was invented and patented by Allied Signal (later Honeywell) in 1991. [5] Other producers around the world have been licensed to manufacture and sell R-410A. [6] R-410A was successfully commercialized in the air conditioning segment by a combined effort of Carrier Corporation, Emerson Climate Technologies, Inc., Copeland Scroll Compressors (a division of Emerson Electric Company), and ...

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