A lot of split units are compatible with Control4. There are many drivers by Alan at Chowmain. Take a look at Airzone or Intesis, they make wireless interfaces for a lot of manufacturers. I am upgrading my single zone ductless to a ducted version, and will be using the Airzone for it. Currently I have a Daikin with their wifi split driver. The Airzone driver is free manufacturer sponsored driver, and Intesis is a paid driver. I have used the Intesis, and it works great, as has the Daikin wifi split driver. Wil be trying the Airzone out in a few weeks, once my system is installed.