So I have posted a few before, and still chugging my way through this issue. My DIY chiller has worked great for other tanks in recent times with chilling down to 34f. I have a newer tank (manufacturer unknown) using it as a unitank. Here are the conditions:
~30bbl tank - with 3 cooling zones. I am currently connected to two of those zones.
Glycol reservoir temp is 28f
beer temp is 46f (confirmed with sample temp as well)
Return glycol temp is 28-29f -- very little if any exchange.
My goal is sub 36f and I have tried changing pumps out just in case my prior pump (3gpm) was too slow or did not have enough psi. I have adjusted psi of the glycol line to ensure that it is not the issue (higher and lower pressures)... still, the glycol is coming back at the same temp or close to and not reducing the beer temp. I have also switched the direction of glycol flow in the zones just in case I am backwards and it had little to no difference.
What am I missing here? I realize that if I drop below 28f that I could accomplish a potential reduction in temp but I am still baffled by the fact that my exchange rate of temp is not adding up!
~30bbl tank - with 3 cooling zones. I am currently connected to two of those zones.
Glycol reservoir temp is 28f
beer temp is 46f (confirmed with sample temp as well)
Return glycol temp is 28-29f -- very little if any exchange.
My goal is sub 36f and I have tried changing pumps out just in case my prior pump (3gpm) was too slow or did not have enough psi. I have adjusted psi of the glycol line to ensure that it is not the issue (higher and lower pressures)... still, the glycol is coming back at the same temp or close to and not reducing the beer temp. I have also switched the direction of glycol flow in the zones just in case I am backwards and it had little to no difference.
What am I missing here? I realize that if I drop below 28f that I could accomplish a potential reduction in temp but I am still baffled by the fact that my exchange rate of temp is not adding up!
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