No they should both be hot.So I guess it doesn't matter where the red or black go.
3 is probably what you need then. Someone else can probably confrim (or correct) this but I'm thinking it's the dryers etc that need the 4 wire as they need both 125 and 220.No clue. I just picked this compressor up from an old guy in my office.
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He had it set up with a "dryer" plug so I rolled with that too.
3 is probably what you need then. Someone else can probably confrim (or correct) this but I'm thinking it's the dryers etc that need the 4 wire as they need both 125 and 220.
From what I read the the 4 wire is so that the appliance can pull both 120 and 240 at the same time. A neutral (white) is needed for 120.The 4 wire is so you have the white neutral and a green safety ground. The white and the green both connect to the metal of the main electrical box and are both connected to the ground rod. Is it code? Probably not. Would I have done the same as Rack did? Yes I would.