R-410A 2816149 226045095 2008-07-16T16:09:42Z 207.17.186.3 /* Availability */ '''R-410A''', sold under the trademarked names '''Puron''', '''Genetron R410A''', and '''AZ-20''', is a near-[[azeotrope|azeotropic]] mixture of [[difluoromethane]] (CH<sub>2</sub>F<sub>2</sub>, called R-32) and [[pentafluoroethane]] (C<sub>2</sub>HF<sub>5</sub>, called R-125) which is used as a [[refrigerant]] in [[air conditioning]] applications. Unlike many [[haloalkane]] refrigerants it does not contribute to [[ozone depletion]], and is therefore becoming more widely used as ozone-depleting refrigerants like [[Chlorodifluoromethane|R-22]] are phased out. However, it has a high [[global warming potential]] of 1725 (1725 times the effect of carbon dioxide),<ref>[http://www.ghgprotocol.org/downloads/calcs/hfc-cfc.pdf Greenhouse Gas Protocol » Download Registration<!-- Bot generated title -->]</ref> similar to that of R-22. While R-410A was invented and [[patent]]ed by [[Allied Signal]] (now [[Honeywell]]) <ref>[http://www51.honeywell.com/sm/410a/about-us/az-story.html AZ-20® Story - About R-410A - R-410A - Honeywell AZ-20 Refrigerant<!-- Bot generated title -->]</ref> 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.<ref>[http://www51.honeywell.com/sm/410a/certification.html Certification - R-410A - Honeywell AZ-20 Refrigerant<!-- Bot generated title -->]</ref> R-410A was successfully commercialized in the air conditioning segment by a combined effort of three companies. [[Carrier Corporation]], Emerson Climate Technologies, Inc. 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. 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.{{Fact|date=January 2008}} 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.{{Fact|date=January 2008}} R-410A is incompatible with R-22 refrigerant.{{Fact|date=January 2008}} ==Availability== {{globalize/USA|section}} In the US, although the [[EPA]] has mandated that R-22 (Freon) along with other Hydrochloroflourocarbons (HCFC's) be phased-out, few window-mounted air conditioners are available that use R-410A. All of the largest central air conditioning systems manufacturers in the U.S. offer systems that use R-410A. As an alternative to window-mounted systems, a ductless "split" system can be had with R410a refrigerant, and can be installed with a 3" hole through the wall (or window opening).<ref>[http://www.410a.com Honeywell AZ-20 (R-410A) Refrigerant]</ref> ==References== {{Refimprove|date=January 2008}} {{reflist}} [[Category:Refrigerants]] [[es:R-410A]] [[fr:R410a]]