Look in the home's breaker box to check if the electrical cable running to the 220 volt outlet wall box has been connected to its own independent circuit breaker. If it has, turn this breaker's switch to its "off" position. If in any doubt, turn off the main circuit breaker in the breaker box.
Run the tip of a utility knife blade from the end of the electrical cable's outer sheathing to within 1 inch of where it enters into the wall box. Pull the sheathing from its interior wires and cut off the loose sheathing with the knife.
Run the knife's blade around the plastic coating on each of the cable's four wires, 1/2 inch from the end. Pull off the 1/2-inch sections of plastic coating with linesman's pliers.
Unscrew all four of the 220 volt outlet's terminal connections using a screwdriver. Push the bare end of the black wire into either of the outlet's terminal connections marked "POS." Tighten the terminal screw to the wire with the screwdriver. Push the bare end of the red wire into the outlet's remaining terminal connection marked "POS." Tighten the screw to the wire. Push the bare white wire end into the outlet's terminal connection marked "NEG" and tighten the screw to the wire. Push the bare end of the green ground wire into the terminal connection marked "GND" and tighten the screw to the wire.
Push the wires into the back of the wall outlet box, and secure the outlet to the box with the screws. Rest the faceplate onto the front of the outlet, and attach it in place with the screws.
Turn on the 220 volt circuit's breaker in the breaker box, or switch on the breaker box's main circuit breaker.