This Manitowoc IY0504A is part of the new Indigo series of ice makers included within the 500 series. This Manitowoc model replaces the SY-0504A. The major upgrade is the easy to read control panel and ice thickness process which is more accurate that ealrlier models. It is a 30" wide machine, air cooled with state-of-the-art intelligent diagnostics, providing 24 hour preventative maintenance and diagnostic feedback for trouble free operation. This machine is 220v whch is more efficient than its 115v counterpart. This technology allows you to improve the energy management for the machine, set specific ice production levels, streamline cleaning processes, ease food safety concerns, maintain ice quality, and receive up-to-date service information timely.