I assume this a US question.

Yes and no. The very fact that you needed to ask sounds like this
might be a bit too technical for you.

220 volts does not require a neutral.
110 absolutely must have.
Both should have a ground.

How many wires and what colors in your receptacle? Let's assume
you have red/black/white/green. Use a volt tester and check the
voltages:

between red and black you should get 220
between red and white you should get 110
between black and white you should get 110
between white and green you should get none.

If all this is true, replace the existing receptacle using either
blk or red on the brass screw / white on the silver screw / green
on the green screw / cap off the unused blk or red (or better,
take it off at the breaker).

If this is not what you have, hire an electrician.

--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)




wrote in message
ps.com...
I purchased a thru-the-wall A/C unit that runs 115V to replace an
out
A/C and didn't realized the old ran on 230V. Is there an easy
way to
convert the 230V outlet to 115V?