It’s nice to have some color coordination.
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any updates on the use of this bad boy? what size roto are you cooling with it? did you see what size the compressor is? it appears to be a 1hp. what does your water bath temp get set to?
20L roto set at 130 with a full vac pulled
Tomorrow starting to use it to chill the still head on my bokabob but it’s so tall so I am going to be running a line up to a coolant reservoir and sucking heat via a stainless coil- that res will then pump to the boka head.
Chills down to -30C and can run all day usually ends the day around -12C which is totes acceptable.
I won’t be using the boka and roto at the same time but if I have to I’m just gonna drop a steel Pail filled with dry ice into the second reservoir to keep temps down as a temp fix
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130F only because I haven’t gone into the manual and figured out how to change my rotos default temp setting to Celsius it’s maddening but idk that seems to be its happy spot with this pump
Have u attempted the dry ice assist part yet?
Based on the pics it looks like you’re using a submersible pump in the gylcol res?
How do you size your Rez is there a gallons per btu ratio?
Have had no need to so no- and yes they are submersibles
I got a larger res than I needed as I wanted the option to add more cooling power- currently I have 2 230L dewars of LN incoming so I will have plenty of extra time for working on the LN cooling system I’ve been working up in my head. Dry ice is obnoxious.
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Sick setup yo! I’m just doing a build of my own little guy right now for a pilot 
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What kind of LLE did you do on the fluid to clean it?
Id be interested to see how the system reacts to dumping dry ice into the glycol reservoir.
i wonder if a diy chiller setup with a few big chunks of dry ice could be used for winterization means instead of an ultra low
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You think bigger the rez the better? Are you going to di ln2 in it?
Dumping dry ice directly into glycol will make it impossible for your pumps to push- all that gas turns it into foam.
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My logic is- I dump a pot of hot water Into a lake- the lakes temp ain’t gonna change much.
I dump a pot of hot water into a kiddy pool, noticeable change in temp.
The trick is excessive insulation.
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Great concept thank u sir
Maybe I’m misunderstanding how the Chilling condenser works, but what pump did you use to move everything through the lines? Is the pump part of the AC unit itself? I went over this thread several times but still didn’t catch that detail.
Naw it’s literally a submersible aquarium pump been chugging along fine.
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These things are actually amazing I’ve thrown everything at them, hot water cold antifreeze everything- can’t stop won’t stop
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Oh shit! Thanks for the tip! I kept hearing they’d shit out running anything colder than 0c, but if you’re having luck with it at those temps I’ll definitely give it a shot.
Edit: Holy hell, especially at that price. I was thinking of pumping glycol through a copper coil submerged in a dry ice acetone bath until I can get around to trying the AC unit mod. Also, it’s going to be at least another month or two until I can get a 220 hookup. 
Any suggestions?