Yep!
I see that they are loading the bottles a little more now!!!
That's good!!!
I see that they are loading the bottles a little more now!!!
That's good!!!
Hmm, that's very interesting... What's R-290, or did you come to that from dissecting it's molecular structure, like they do to get the R designations for the other refrigerants?Looks to me as if the envirosafe is just refrigerant grade propane or R290
Then you would be the perfect person to ask...Propane is a refrigerant. What you use in your BBQ has a chemical odor added to it to alert users of a leak. Refrigerant grade does not. The Mercaptan contains sulfur which is what you smell. It also reacts with moisture to create an acid. Not good for a hvac system. R290 is not actually illegal. Its legal for retrofit use on CFC based industrial cooling systems. It is banned for residential and mobile use. Blends are legal however.
I've converted many old R12 freezers to R290. one of them was a drive in food warehouse with huge drive in freezers and coolers. PITA to work on but that was a past life. Thats where i learned about R290 and propane. the industrial 12A works well enough for me that while its not as cheap as bbq propane, i dont worry about it contaminating my system. the industrial 12A and other R290 is highly refined to be refrigerants.
Then you would be the perfect person to ask...
Which oil is preferred to use with the Industrial ES-12? It sounds like the Industrial ES-12 might not have any benzene mixed with it to help carry the oil throughout the system... Most propane blends are usually a 60/40 blend for two reasons... To carry the oil and to be DOT certified for ground shipping.
As I mentioned earlier, I am going to flush my system and refill with Industrial ES-12 and was going to use PAG, but I'd rather use mineral oil or ester oil, if that's the better choice...
I just want to be able to use the stuff without killing my compressor, I hate black death, got it once before and replaced EVERYTHING behind the firewall and in front of the firewall... Pita... Gotta have good oil circulation... The other side note to black death... The head pressures are very low with 12A. Like 120psi on a very hot day. Makes life easy for the compressor.
Thanks for your reply...
Agree with you completely. Especially when i get a machine loaded with stop leak. When you buy this stuff they come with stick on labels in compliance with the EPA just like a R12 to R134A retrofit.