He has not said if he's looked but he hasn't said that he hasn't either.
You are making an assumption based on the utterly ridiculous contention
that if he did look and saw four wires he wouldn't be bothering to ask.
Why is that utterly ridiculous? Because a non professional might still ask
to make sure that it's OK in terms of safety and code since as we all know
there are many things that might physically work that are not. Is it ok to
put a 120V receptacle on one side of a 240V line? Will it work...of
course. Is it safe and to code? That's the real question here and you
went off on a tangent.

Since the man asked if it's ok to hook up based on the presence of a
neutral the logical response would be to treat it as though there is one.
Naturally if there isn't then he cannot do it that way. Everyone else is
treating the case based on the facts presented by the OP, whether those
facts are verified truth or just assumed. If you want to add a little
kicker along the lines of "hey there's a good likelyhood there is no
neutral present and in that case here's what to do" then fine. But you're
insisting that the poster's question is wrong on the face of it. Everyone
else is answering the question as given.

Is this a game you play? If a someone asks a question--any question--then
obviously they must not be capable of doing the task they ask about.
Trying to turn this place into alt.hvac?