Fixing A/C
03-22-07, 06:51 PM
#28
Originally Posted by dantheman
.... How is that free? You can just walk up and take them?
but i wouldnt be surprised if they finally got part numbers and started charging them
03-23-07, 09:30 PM
#31
Doc is absolutely right on all counts to service your A/C. A/C is also my industry. Make sure you get that dryer in the system before you close it up. Here's an FYI - R22 was the preffered refrigerant before R12 came on the market. Now it's gone because it's not ozone friendly. R22 will also be phased out by 2020. Good luck with the changeover.
08-17-07, 02:35 PM
#39
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I found this interesting so I thought that I would share. Also since R-134a is already going way of R-12, with the European Union already banning it by 2011, has anyone considered alternatives to R-134a?
A/C Time Line
DATE EVENT
1930 Research on halogenated hydrocarbon auto A/C systems began.
1939 Packard is the first production vehicle to have an A/C system.
1957 Cadillac Eldorado Brougham is the first vehicle to have standard A/C.
1970 Environmental threat of halogenated hydrocarbon refrigerants identified.
1987 Montreal Protocol: Phase-out of hydrogenated hydrocarbon refrigerants.
1990 Transition to R-134a (hydrofluorocarbons) refrigerant begins.
1994 Transition to R-134a completed.
1997 Kyoto Protocol: Objective to reduce environmental impact of hydro fluorocarbons set.
1998 Lorentsen study detemines CO2 to be best "natural" refrigerant.
1998 Phoenix Alternate Refrigerant Symposium compares R134a to other alternatives.
2001 SAE Alternate Refrigerant Cooperative Research Program begins.
2003 Brussels Conference: legislation begins to be considered.
2004 California Air Resources Board proposes a 30% reduction of greenhouse gases by 2011 and a further 10% reduction by 2014.
2005 European Union bans R-134a by 2011.
(Source: Delphi Corp.)
http://www.search-autoparts.com/sear....jsp?id=314803
A/C Time Line
DATE EVENT
1930 Research on halogenated hydrocarbon auto A/C systems began.
1939 Packard is the first production vehicle to have an A/C system.
1957 Cadillac Eldorado Brougham is the first vehicle to have standard A/C.
1970 Environmental threat of halogenated hydrocarbon refrigerants identified.
1987 Montreal Protocol: Phase-out of hydrogenated hydrocarbon refrigerants.
1990 Transition to R-134a (hydrofluorocarbons) refrigerant begins.
1994 Transition to R-134a completed.
1997 Kyoto Protocol: Objective to reduce environmental impact of hydro fluorocarbons set.
1998 Lorentsen study detemines CO2 to be best "natural" refrigerant.
1998 Phoenix Alternate Refrigerant Symposium compares R134a to other alternatives.
2001 SAE Alternate Refrigerant Cooperative Research Program begins.
2003 Brussels Conference: legislation begins to be considered.
2004 California Air Resources Board proposes a 30% reduction of greenhouse gases by 2011 and a further 10% reduction by 2014.
2005 European Union bans R-134a by 2011.
(Source: Delphi Corp.)
http://www.search-autoparts.com/sear....jsp?id=314803
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