Well, I don't have pics, but I've torn the system apart.....why.......
I have a system leak. The leak is very minor, so I didn't find it right away. With R134a, the system pressure was ~50psi static. At that pressure, it wouldn't leak. With porpane and static pressures of 95psi, it would leak out at ~1.5psi/hr untill it reached ~60psi.
I believe it was on the suction side, as the system ran ~15hrs fine with no capacity loss under load. But, leave it set, pressure dropped. That tells me when it's running, and the suction side pressure is very low, no leak. But, in static conditions, low side pressure is much higher, and leak.
Anyway, I think I found the bad braze. I wanted to redo the system anyway with a desuperheater, so I have that going right now. I'll make the entire low side 5/16" tube, like the original water fountain. Plus, a new filter/drier and use dentured alcy instead of water in the resivor. I'll get some initial pics up tomorrow.
RussC
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