Supply and return hoses are connected to the glycol supply manifold on the opposite wall where the feremtors sit. Glycol manifold valves are opened to initiate chilled glycol flow through the pre chiller. The city water valve is also opened, allowing water at ground temperature to pass through the pre-chiller before it enters the wort chiller to cool the wort.
The final wort temperature is transmitted back to command central where the operator can adjust the outlet temperature by speeding up or slowing down the pump flowrate. Additionally, the water flowrate can be adjusted. Glycol, water and wort flowrates need to be precisely adjusted for optimum efficiency.