Here is an up close of the area for right now. I can get more once I'm back at the distillery.
I tested the fuses because one day our still would not go above 99C. I thought that was weird, specially after the Carl rep gave me a spiel about a protein film in the still that would inhibit heat exchange and incomplete fermentations. Ended up 6 out of 12 fuses were bad. Also in the very beginning of the distillery they were going through fuses and upgraded to higher amp fuses.
I'm pretty sure I'm talking fuses, In that picture those gray "tabs" fold down and you can pull out a small fuse, round about 1/4" W and 1" L.
Yep, original owner, first used here.
Just a note, 1 week has gone by and not even a simple response from the Carl rep.