How to Convert an Onan 120 to 220

Cummins Onan is a company that specializes in making portable generators. Typically, these generators are powered off 120-volt electrical supplies. However, if the only power outlet available to run the Onan is a 220-volt, you can use a converter known as a step-up/step-down transformer to convert and run the Onan. These transformers, which are sold as a single portable unit, convert lower voltages to higher or higher voltages to lower voltages. Installation takes less than five minutes.

Things You'll Need

• Step-up/step-down transformer

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Instructions

1. • 1

     Plug the step-up transformer into the 120-volt electrical outlet.

   • 2

     Plug the Onan generator plug into the plug-in on the face of the step-up/step-down transformer plate. Turn the transformer's mode dial to the step-up voltage function.

   • 3

     Turn the transformer power button to the "On" position.

   • 4

     Power up the Onan generator and use it according to directions.