R-410A, sold under the trademarked names Puron, Genetron R410A, and AZ-20, is a near-azeotropic mixture of difluoromethane (CH2F2, called R-32) and pentafluoroethane (C2HF5, called R-125) which is used as a refrigerant in air conditioning applications. An azeotrope (pronounced Difluoromethane, also called HFC-32 or R-32, is an Organic compound of the dihalogenoalkane variety Pentafluoroethane, also called 11122-pentafluoroethane, HFC-125, or R-125, is a Refrigerant that has zero Ozone depletion potential A refrigerant is a compound used in a heat cycle that undergoes a Phase change from a Gas to a Liquid and back The term air conditioning refers to the cooling and dehumidification of indoor air for Thermal comfort. Unlike many haloalkane refrigerants it does not contribute to ozone depletion, and is therefore becoming more widely used as ozone-depleting refrigerants like R-22 are phased out. The haloalkanes (also known as halogenoalkanes or alkyl halides) are a group of Chemical compounds consisting of Alkanes such as Methane Ozone depletion describes two distinct but related observations a slow steady decline of about 4 percent per decade in the total amount of Ozone in Earth's Chlorodifluoromethane or difluoromonochloromethane is a Hydrochlorofluorocarbon (HCFC However, it has a high global warming potential of 1725 (1725 times the effect of carbon dioxide),[1] similar to that of R-22. Global warming potential (GWP is a measure of how much a given mass of Greenhouse gas is estimated to contribute to Global warming.
While R-410A was invented and patented by Allied Signal (now Honeywell) [2] and Honeywell continues to be the leader in 410A capacity and sales, other producers around the world have been licensed to manufacture and sell the product. A patent is a set of Exclusive rights granted by a State to an inventor or his assignee for a fixed period of time in exchange for a disclosure of an Italic text --> AlliedSignal was an aerospace automotive and engineering company that acquired and merged with Honeywell for $15 billion in 1999 Honeywell ( is a major American multinational conglomerate company that produces a variety of consumer products engineering services and aerospace systems [3] R-410A was successfully commercialized in the air conditioning segment by a combined effort of three companies. Carrier Corporation, Emerson Climate Technologies, Inc. The Carrier Corporation is the world’s largest manufacturer and distributor of heating ventilating and air conditioning ( HVAC) systems and a global leader in the commercial with Copeland Scroll Compressors (a division of Emerson Electric Company), and Allied Signal worked together in developing the refrigerant for practical use in air conditioners in the US. Emerson Electric Company ( NYSE: EMR is a major Multinational corporation headquartered in St R-410A is also the preferred refrigerant for use in residential and commercial air conditioners in Japan and Europe, replacing R-22.
Carrier Corporation was the first company to introduce a R-410A-based residential AC unit in the marketplace in 1996. Carrier holds the trademark Puron and is still the leading supplier of energy efficient R410A AC systems for residential, commercial and chiller applications in the US today.
R-410A is incompatible with R-22 refrigerant.
Availability
In the US, although the EPA has mandated that R-22 (Freon) along with other Hydrochloroflourocarbons (HCFC's) be phased-out, no window-mounted air conditioners are yet available that use R-410A. All of the largest central air conditioning systems manufacturers in the U. S. offer systems that use R-410A. [4]
References
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