R-12 TXV but only have R-290!

Xeon the MG pon · 03-17-2006, 05:37 AM

Ok here's the problem I scored a 2ton and a 1/2 ton R-12 TXV I want to use R-290, but I am thinking this won't work, but I'm not shure hence why I'm asking!

If this dosn't work I intend on using a 80/20 mix of R-134a & R-290 this will allow me to use the R-12 TXVs with the R-134a and use Minerol oil thanks to the R-290 and get some ok temps while at it.

But naturaly if I can get away with using pur R-290 it will make every thing much easier.

This is NOT for a computer system, this is a A/C unit I am building so please spar me all the computer related stufe (Been there don it, but I like water it's more then enough) I know thee's questions go off the deep end if allowed to so I figured I'd pre-emptivly stop that....

Any help will be greatly apreciated..

ricecrispi · 03-17-2006, 12:55 PM

I'm sure s few people here have experience with compressors but some other forums have guys with tons of experience building phase change coolers with compressors and blending.

http://forums.extremeoverclocking.co...play.php?f=183

http://www.xtremesystems.org/forums/...play.php?f=155

http://www.xtremesystems.org/forums/...splay.php?f=80

Xeon the MG pon · 03-17-2006, 01:46 PM

Thanks, I found a great PDF on making a perfect Anzeotropic mix for R12

it's 80% 134a and 20% R600a

03-17-2006, 05:37 AM	#1
Xeon the MG pon Cooling Neophyte Join Date: Mar 2006 Location: Canada Posts: 3	R-12 TXV but only have R-290! Ok here's the problem I scored a 2ton and a 1/2 ton R-12 TXV I want to use R-290, but I am thinking this won't work, but I'm not shure hence why I'm asking! If this dosn't work I intend on using a 80/20 mix of R-134a & R-290 this will allow me to use the R-12 TXVs with the R-134a and use Minerol oil thanks to the R-290 and get some ok temps while at it. But naturaly if I can get away with using pur R-290 it will make every thing much easier. This is NOT for a computer system, this is a A/C unit I am building so please spar me all the computer related stufe (Been there don it, but I like water it's more then enough) I know thee's questions go off the deep end if allowed to so I figured I'd pre-emptivly stop that.... Any help will be greatly apreciated.. __________________ Xeon! the one and Only MG Pony! Puting the FU back into FUN in DoD! Das MG42 schÜtze ! My user name is suposed to be "Xeon the MG Pony"

03-17-2006, 12:55 PM	#2
ricecrispi Cooling Savant Join Date: Jul 2005 Location: california Posts: 429	Re: R-12 TXV but only have R-290! I'm sure s few people here have experience with compressors but some other forums have guys with tons of experience building phase change coolers with compressors and blending. http://forums.extremeoverclocking.co...play.php?f=183 http://www.xtremesystems.org/forums/...play.php?f=155 http://www.xtremesystems.org/forums/...splay.php?f=80

03-17-2006, 01:46 PM	#3
Xeon the MG pon Cooling Neophyte Join Date: Mar 2006 Location: Canada Posts: 3	Re: R-12 TXV but only have R-290! Thanks, I found a great PDF on making a perfect Anzeotropic mix for R12 it's 80% 134a and 20% R600a __________________ Xeon! the one and Only MG Pony! Puting the FU back into FUN in DoD! Das MG42 schÜtze ! My user name is suposed to be "Xeon the MG Pony"

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