JEC8430 ADB cooktop wiring doesn't matchup - no instructions for this situation

Wall has 4 wires: red, black, white and copper ground.
Cooktop has 3 wires: black, red and copper ground.
We know:
Red to red
Black to black
Copper to Copper
But what do you do about the white?
Put white to it's neighboring copper, then copper to copper?
Or leave the white unhooked?

Hook the copper and white together. DO NOT leave the white unhooked.

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