replacing 22

[tntek]

I know 410 is the main alternative to 22 but does anyone know if the manufactures are working on any other refrigerents?

[hvaclover]

Thre are a number of zeotropes available like Nu22B and a few other I can't remember the names of.

I'm sure there will be a flood of pretender blends hitting the market once the supply of 22 gets tighter.

I'm going to use only the original as long as there are R22 systems around.

[dash]

Equipment manufacturers have no plans to use anything other then Puron/R410a,as far as I have heard.

Check out http://www.410a.com

[gcook]

Watch out... its rumored that Nu22 will lose around 7-8% of the system capacity.

[BaldLoonie]

NU-22 had a 5-15% capacity loss. I haven't heard what the NU-22B figures are. I sold one of their big shots a system for his house. He told me it is now running NU-22B and doing just fine. It is sized right on the money with nothing to spare so he must not have much loss with it.

[hvaclover]

NU22B is supposed to be an improvement over the previous A blend ICOR sold. Capacity it SUPPOSED to be up considerably and they are touting it as a drop in replacement for R22.
Yadda Yadda.

Bring back CFCs and fuc* the guys with calloused inner arms.

410A is closest thing to an azeotrope we are going to see from the chemical companies while in the mean time third world and a lot of Eastern European countries aren't even observing Montreal and Kyoto.

[tecman]

R407c is a replacement to R22, except for an oil change. temp/press are very close. It is widely used in Europe.

paul


[Edited by tecman on 12-20-2006 at 09:37 PM]