Gass, I am not sure.. But I believe Vince or Fonzie may be able to help you out.. I will tell you to be careful and make sure before hooking up and running.. I am thankful for the Breaker switch on my unit .. From this forum answers and a chat with a neighbor whom is a retired electrician ..I could of really done some serious damage to my unit..
.. Curious my Unit doesn't have a switch to go between 120/240 ..hmmmm