220 volt with 4 wires wiring

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My electrician wired my 220 outlet with 4 wires – white, black, red & ground. I have a 3 wire 220 volt 20 amp plug/outlet for a car lift. Which wires will I use and where on the plug? (The machine/plug wires are green, red, black). Thanks!

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kenswheels 2018-08-31T16:54:16-04:00 1 Answer 564 views
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  1. Dominick Amorosso
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    2018-08-31T16:57:14-04:00
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    The red and black are the two hots. Green is the ground. The white is the neutral, this is the return path. What brand and model is your lift?