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This refrigerant is intended as a replacement for R-22. R-22 production will be phased out by 2020 as per the Montreal Protocol. [2] Key Characteristics: Colourless and Odourless: R407C is visually clear and does not emit a noticeable smell. Non-Flammable: Safe to use under normal operating conditions due to its non-flammable nature. [3]
R-421A is for use in "air conditioning split systems, heat pumps, supermarket pak systems, dairy chillers, reach-in storage, bakery applications, refrigerated transport, self-contained display cabinets, and walk-in coolers". Uses mineral oil (MO), Alkylbenzene (AB), and POE. R-422B is for use in low-, medium-, and high-temperature applications.
R22: 7300–7749 1957–1958 ... Prototype air conditioning unit designing & testing: Cancelled: ... (to replace R74s) (2 units) TBD 2017 TBD Under planning
R-410A was invented and patented by Allied Signal (now 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 ...
In the late 1920s, a research team was formed by Charles Franklin Kettering in General Motors to find a replacement for the dangerous refrigerants then in use, such as ammonia. [3] The team was headed by Thomas Midgley Jr. [ 4 ] In 1928, they improved the synthesis of CFCs and demonstrated their usefulness for such a purpose and their stability ...
Chlorofluorocarbons (CFCs) are anthropogenic compounds that have been released into the atmosphere since the 1930s in various applications such as in air-conditioning, refrigeration, blowing agents in foams, insulations and packing materials, propellants in aerosol cans, and as solvents. [68]
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