Follow this Technical Manual to convert the old ice bank control, part #S0513-A to the new style ice bank control, part #S0068-U. The old style ice bank control came standard in all Crysalli models made in 2019 and prior. Beginning in 2020, the new style ice bank control, part #S0068-U comes standard when you purchase a new water chiller. If you run across an old style control, follow these steps to successfully convert to the new standard ice bank control. Go to the bottom to download a "printer friendly" version to use