4 prong generator plug

[motormitch]

I am sure the answer to this question is buried in numerous discussion threads, but given that I am in a bit of a hurry I'm simply going to post the question directly. I have a 7000 W generator that is capable of putting out 220 V 30 amp power. The 220v 30 amp outlet is a four prong outlet with an L prong. I need to use the generator to power a Mitshu Mr. Slim AC system for testing. It requires 220v 30 amp power. I purchased a four prong plug that it's the receptacle on my generator. I need to wire standard 220 V three wire to the four prong. Which prongs do the three wires go to?

 

[motormitch]

I forgot to mention that the plug I purchased to wire on has yellow white green and what appears to be an X mark for the four prongs

 

[Stuart in MN]

Sounds like you have a NEMA 14-30 plug, like this:

The bent plug is the white or neutral wire, which the a/c unit doesn't need. Green is ground, the Y and X are the two hot wires.

 

[malibu101]

Many that I have seen are NEMA L14-30.
A twistlock outlet.
Has kinda an "L" prong on the ground?
As on all twistlocks, the prong with the "L" which is also the longest prong, is the ground.

 

[Stuart in MN]

I didn't think of a twistlock, I agree it could be one. Either way, for your connection to the a/c unit you don't need the neutral wire.

 

[motormitch]

Gentlemen, this was exactly what I needed. I was able to wire up the plug (it was a twist lock) hook it up to the generator and fire up the AC unit successfully. I love this web site.

This test was for the shop I am building tracked under the http://www.garagejournal.com/forum/showthread.php?t=199243
thread. I'll update that one in a moment.

Thanks to everyone for the help.