Push each connection into place and pull to confirm that the connection is secure.Connect the supply line to the port labelled “PROCESS OUTLET” on the chiller, then to the lower dip tank connection. The output line from the dip tank connects to the chiller port labelled “PROCESS INLET”.Fill the chiller with approximately 7.5 gallons of glycol mixture or to the top of the fill port. Turn on the chiller and continue to add glycol mixture until the chiller is once again full. This process should take approximately 14.8 gallons of liquid and will fill the tanks, chiller lines, and chiller with glycol mixture. Polyscience Polycool Mix-25 is recommended. Air will be purged from the lines by the chiller. Once filled, the chiller will begin to regulate the tank temperature to the selected set point.