Glycol Chiller

[Slyde24]

Hey Guys,

Any idea why this is happening to the glycol chiller?

Any suggestions on how to fix?

Icemaster 100 series.

Thanks in advance

 

[Vale71]

What's the temperature setpoint? What's the glycol to water ratio?

 

[jddevinn]

Looks like the tubing is freezing condensate from the air. Is there enough glycol that the cooling tubes are covered?

 

[Slyde24]

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

 

[Slyde24]

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.

 

[Vale71]

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.

How to Use a Refractometer to Test Glycol Concentration

Using a refractometer test, you can maintain your system for efficiency and lifespan. Watch our step-by-step video on how to test heat transfer fluid concentration using a refractometer.

goglycolpros.com

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.

 

[Slyde24]

Thanks.

11.2 Brix

 

[Vale71]

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.