How to Change 110 Volt to 220 Volt Receptacles
- 1). Locate the fuse box for your entire home. Shut off the electricity to the part of the house or office where you will be installing the reverse converter.
- 2). Approach the outlet you wish to convert and remove the screw at the center of the outlet's face plate.
- 3). Set the screw aside for later but hold the face plate where it is. Do not remove it.
- 4). Plug the reverse electricity converter into the bottom most outlet in the wall plate.
- 5). Replace the screw at the center of the face plate. This screw should go through a metal hoop on the converter, before it is screwed into the hole.
- 6). Return to your fuse box and restore electrical power.
Source...