R22 instead of R12

[jan]

Is it possible to use an old R12 compressor with R22
like some people use r404a instead of 134a

[Tedinde]

Will there be much of a gain though??

[jan]

I need to change from R12 to R22 because I've got two R12 compressors but no possibility to get R12.

R22 is cheap and easy to get.

[Tweaked!]

Instead of converting to r22, you would be better off switching to a blend like rb276 or hot shot. R22 won't get as cold.
Here's a product comparison page at Dupont (http://www.dupont.com/suva/na/usa/products/index.html)

Here's freezone (http://www.rmsgas.com/freezoneoverview.htm)

and here's hotshot (http://www.icorinternational.com/hotshot/hotshot.html)

Warning though, I'm under the understanding that Hotshot contains 40% propane and can be quite hazardous when used in the wrong environment. I would not recommend using this stuff in vehicles, and if using it in your computer, have a well ventilated area if there's a possibility of a line leakage.

[jan]

freezone sounds interesting

but i must look if it is available in germany. at least in europe.

do you know what freezone cost?

[baker18]

Originally posted by jan
Is it possible to use an old R12 compressor with R22
like some people use r404a instead of 134a

Yes, I've been using R22 on all my systems and it works great. The only drawback with R22 is takes littler longer to get cold(10-15 min) compared to R404(5 min). R22 is a lot cheaper ($65/30lb) than R404($250/30lb).

Here is my temps on my gpu evap with a 80 watt pelt.

-40 to -45 loaded and -60 to -62F unloaded.

baker18

[ellsworth]

r22 is great indeed, almost as cheep as propane and can be used in a variety of compressors with great results, and the whole not explosive thing is nice. my propane setup takes about 5 mins to reach bottom temps.

[berkut]

R22 is a little better than propane if it comes to heatloads but puts more stress on the compresor :\

And over here R22 is cheaper than propane