Revert to R12

[95SUBURBANLM7]

Is it as simple as changing the fittings, dryer, etc to R12 and flushing out the 134a to R12?

Thanks for any help.

 

[Fuzzy]

Should be that simple, but I don't know why on earth you would do that.

 

[michael hurd]

Exactly. R-12 is as extinct as dinosaur teeth, I have no idea why you would want to go back to it.

 

[95SUBURBANLM7]

Doesn't R12 cool better then 134a?

 

[michael hurd]

Not according to this tightly controlled study:

http://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1154&context=iracc

 

[michael hurd]

If you are having poor A/C system performance, you may have an evaporator core that has a coating of oil and dust on it or a dozen other factors, including cab size, leaking ducting in the hvac system, problems with doors sealing, etc.

 

[95SUBURBANLM7]

Thanks for the info, Ill take a look into it. If 134a is just as good, Id rather leave my system alone.

No, no troubles with the system other then a blown compressor. Ive just heard that R12 was superior at cooling compared to 134a. If that study is true, Ill stick with what I have.

Thanks for the replies!

 

[Jacob]

You hear that because r134a doesn't work to well in r12 systems that have been converted over. The reason it doesn't work is because it isn't designed for it.

 

[vaporlock]

R12 was forbidden in 2004 so filling it up will most likely be an issue. From what I've heard R134a is a fairly close match to R12, R134a is just slightly less efficient. My dad works with industrial cooling, mostly custom built walk in coolers and freezers, his been doing that for about 35+ years and has converted hundreds of R12 systems to R134a without issues.

The AC in my truck uses R134a and it's really cold and I don't think anything has been done to it in about 10 years!
You might wanna start with checking you system, make sure there is enough R134a and that it's not leaking, if it's just a little low the cooling effect goes down alot and if it's leaking you don't get the correct pressure in the system.

 

[jkeaton]

Plus the fact you have to be licensed to even buy the stuff.