Hello. Welcome to Just Answer.
Do you mind standing by while I look up the electrical specs for the oven? Or, do you have that data, perhaps in the literature or on a data plate somewhere on the unit? Specifically, I would like to know the rated amperage or wattage.
I found the specs Online. It requires a 30 amp 240 volt feed.
I will look
So, your wire size is good. The breaker should be replaced with a double pole 30 amp, just to properly protect the wire.
As for the connections, please connect as follows...
Black from wall to black on unit.White from wall to red on unit.Ground from wall to white and ground on unit.
Ok. thats good....I have an existing 40 amp breaker in the box. Are you suggestion that this be replaced with a 30 amp?
Yes, I would swap it with a properly branded 30 amp. That is the best way to protect the wire, and keep it from becoming overloaded.
Got it... Thank you
You are most welcome. Is there anything else I can do for you?