A 220-volt outlet will have four wires to complete the circuit whereas the more standard 110 volt will have only three. Wiring the 110-volt outlet, you will have one wire considered the "hot" wire, a neutral and ground wire to complete the circuit. Going in and eliminating one of the wires, along with installing a 110-volt circuit breaker, will complete your project.
Turn the main power off at the main service panel. The main switch is located at the top of the panel and will be labeled.
Loosen and remove the screws in the four corners on the service panel door, and set the panel aside for later reassembly.
Locate the 220-volt breaker and loosen the screws securing the two wires (red and black) to the breaker. Unscrew the two screws and pull the wires loose. Using the screwdriver, loosen the screw securing the breaker to the panel and gently pry the breaker out of the slot.
Insert the new 110-volt breaker into the open slot, and mount it in place by pushing down until the two U-shaped clamps on the bottom of the breaker snap or lock into place over the two pins in the service panel slot. Connect the black (hot) wire (from the wiring connected to the old 220 breaker) to the single screw on the breaker. Cut the red wire as close to the cables outer sheathing as possible to prevent future use.
Replace the service panel cover, insert a screw into each corner and tighten them down, securing the cover in place.
Loosen and remove the screws holding the outlet cover plate to the 220-volt outlet. Loosen and remove the screws holding the wiring to the outlet. Remove and discard the outlet, letting the wiring hang free.
Cut a hole around the wiring just large enough for the new outlet box to slide into. Punch out one of the knockout holes on the back of the box with the screwdriver, and insert the wiring through the hole and out the front of the box. Insert the box into the wall and secure it with the screws included in the kit.
Cut the red wire as close to the sheathing as possible to prevent future use.
Attach the wiring to the new 110-volt outlet by tightening down the screws on each wire. Connect the black wire to the brass screw, the white wire to the silver screw, and the bare wire to the green screw. Push the wiring into the box. Insert a screw into the bottom and top holes and tighten the outlet down to the outlet box. Attach the cover plate over the outlet and tighten the screws down.
Turn the main power switch back on and ensure that the new 110-volt breaker is in the on position. Plug in a light to the outlet and test for power.