The chiller is not controlled by the main machine and must be filled with coolant, turned on, and set to the desired temperature manually prior to production. Since the lines to recirculate the glycol mixture connect through the dip tank, the chiller MUST NOT be started until these connections are secure.The supply lines to and from the chiller are connected to the dip tank jacket with quick disconnect fittings. The input connection to the tank is on the bottom, and the output connection is on the top.