How to Install 220-Volt Dryer Outlets

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Electric dryer outlets are configured to provide a 220-volt electrical current to your dryer. The outlets themselves are of a different configuration and wired differently than the standard two-prong 110-volt outlets used in the rest of the home for electrical devices, lamps and appliances. Despite these differences, the 220-volt dryer outlet can be installed quickly with simple tools.

Things You'll Need

  • Wire cutters
  • Wire strippers
  • Screwdriver
  • Outlet cover
  • Turn off the power to the dryer circuit at the circuit breaker panel. Pull the power cable out of the outlet box in the wall and trim the cable back so it extends out for 3 to 4 inches.

  • Cut away two inches of the cable's outer jacket with a set of wire cutters. Remove 1/2-inch of insulation from the ends of each of the four color-coded wires inside the cable, using a set of wire strippers.

  • Loosen the four screw terminals on the back of the dryer outlet.

  • Insert the bare ends of the wires into the screw terminals and tighten the screws to hold them. Match the green wire to the "GND" terminal, the white wire to the "NEG" terminal and the black and red wires to the "POS" terminals. It doesn't matter which of the red or black wires goes to which of the "POS" terminals.

  • Place the outlet into the box and attach it to the box at the screw points. Place the cover onto the outlet. Turn the power on at the circuit breaker panel.

References

  • "Complete Do-It-Yourself Manual: Completely Revised and Updated"; Editors of The Family Handyman; 2007
  • "Wiring 1-2-3"; The Home Depot; 2005
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