Glycol Chiller

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Slyde24

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Hey Guys,

Any idea why this is happening to the glycol chiller?

Any suggestions on how to fix?

Icemaster 100 series.

Thanks in advance
 

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What's the temperature setpoint? What's the glycol to water ratio?
 
Looks like the tubing is freezing condensate from the air. Is there enough glycol that the cooling tubes are covered?
 
Here comes the fun part.

Inherited this system at a Nano brewery. Last brewer was fired and have no idea what he did...

I think that there is not enough solution and the coils are not covered completely.

Temperature is set to -4C
 
The owners also said its been a while since they've ordered glycol, so not even sure if there is glycol in it or what the ratio is.
 
You can use a refractometer to determine the current glycol percentage to see how much you should add unless you want to go for a complete drain and replace just to be safe.

https://goglycolpros.com/blogs/ask-the-pros/refractometer-test-glycol-concentration
At -4°C you really shouldn't be getting any ice, there's probably very little glycol in there and that's compounded by the coils not being fully submerged.
 
That's a little less than 15% glycol which should place your freezing temp at slightly below -4°C. I'd say you've found your issue. 👍
 
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