Trying to get my chiller cooler...

So my chiller isn’t cutting it as I’ve added more material columns. Wondering if I could add an injection coil between the chiller and the first column or will that freeze the poly -25 solid? Any suggestions would be appreciated. Thx

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Idk if it would work but I like the idea

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How many columns do you have?

Going from 2 to 4. I forget what chiller I have but it was around 6 grand so a small to midrange one. It doesnt hold enough liquid so I feed it as its filling up the columns

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Rather than an injection coil that your glycol runs thru (and risks freezing) I think it would be a better idea to put an LN2 coil in the reservoir of your chiller, if your glycol mix freezes in an injection coil it’s going to take a minute to thaw out and start flowing again, the reservoir will provide more hedge against a freeze up/no flow situation IMO.

If you aren’t already, you can get more performance out of most chillers by moving more air past them with box fans or a floor dryer, and/or turning the AC down further in the room that the chiller is in.