Originally Posted by kickflip_mj
I know if you ran it all day everyday it would be around $2 a day, how does the system work? I know the chiller is in Glycol.
An updated version of this:http://byo.com/brown-ale/item/1877-build-your-own-glycol-fermenter
AC coils go in the glycol to chill it, a submersible pump circulates the glycol through the lines. Motorized ball valves decide which conical gets cooled.
Inside the conicals will be an immersion chiller to circulate the glycol
To control it all, I'm using a BCS-460. One temp probe monitors the temp of the glycol and turns on the AC unit when it gets above a set point.
The other 3 temp probes control conicals. When a conical needs to be chilled, the pump gets turned on an a ball valve gets actuated to cool it.
If it needs to be heated, there will be heat tape around the conical. I'm not quite sure how effective this will be, but we'll see how it goes.