Jeff, Awesome link, in all my digging I did not find that one.
AC, fourth picture down shows how I got my R152A. I got a cheap $7 can clamp off ebay and 4 cans of air duster for $12.
The idea behind this blend was to create a blend that works well with mineral oil. The compressor was matched for 134A , 152A was not as expensive, and all around cooler to use. It was luck that 290 just so happened to matched so well with it. After a few hours of research I found that a lot of the car 134A has a little bit of R290 and R600 in it. So I just guessed on the ratio. Sadly I don't own a good set of scales so I did it by pressure. I knew my target high and low psi, so I filled 290 first and finished off with 152A. A lot of the info I got was off of computer forums talking about their chillers. Some of their systems are this small and they experiment with different blends.
Got the fan mounted and wired, going to start on the box tonight.
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