Most commercial ice cream machines require 208-230 volts (220 volt). You also need to decide between single phase and three phase.
How do you know if you need single or three phase? It's simple. If your building has three-phase power available, you always want to take advantage of it for a few main reasons:
Make sure your building can supply three-phase power. If you're not sure if you have three-phase power available, you should ask your landlord or someone with electrical knowledge, preferably an electrician.