There's a lot of hearsay on this phasing out of R134a. From what little I have read here and there - it appears that R134a doesn't have a much better reputation than R12 when it comes to environmental issues. We seem to have traded one bad actor for another. I don't know the details of all this, nor the exact "why" R134a is being phased out. But, it appears there are alternatives for use in the USA, anyway, in place of the R134a. Freeze12 is one that is used a good bit in my area. But one needs a buddy who can deal with it. Most shops are set up for R134a and since they do a lot of business with it, they are not going to mix up with Freeze12. The reason for the Freeze12 is that it is supposed to match closely in performance with R12, and if so, it doesn't have the head pressure that R124a requires to operate properly. This saves on those old compressors that were not designed for the pressures of R134a. Note: /The Freeze-12 brand has been discontinued this year/. (ES 12a has replaced it) http://autorefrigerants.com/co00030.htm John John Rodgers Clayartist and Moldmaker 88'GL VW Bus Driver Chelsea, AL Http://www.moldhaus.com
On 6/30/2011 3:11 PM, Scott Daniel - Turbovans wrote: > I'm no AC expert, and R134a is known for leaking much more easily than > the > old R12 ...due to smaller molecules. > > there are also other juices.. > often with propane in them, that are supposed to cool pretty well. > 'super-cool' or whatever aftermarket sounding hotshot name I'm trying to > remember. > Dura-cool, > that's one I think. > > ( environmentally ..........R134a is currently being phased out on > very new > euro cars I believe. ) > > > ----- Original Message ----- > From: "Karl Wolz" <wolzphoto@Q.COM> > To: <vanagon@GERRY.VANAGON.COM> > Sent: Thursday, June 30, 2011 12:42 PM > Subject: Desert refrigerant of choice? > > >> Any opinions on the R-12 refrigerant of choice for use in hot climates? >> Looked on Google and found a half dozen or so. R134a is an option, >> but I >> get bad reports on its ability to cool from over 110 degrees. >> >> Karl Wolz > > |
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