If the 120V terminal to ground (the center tap) is available, and it would be to be able to use the 120V tap, then someone will certainly use the remaining 120V coil ( center tap to the matching ungrounded leg of the center tapped transformer. Just because the terminals are available.
Codes are for overall safety, I hope.
[This message has been edited by Gwz (edited 06-11-2002).]
