Resistive elements draw less current, less power.
Inductive motors produce less back-EMF, draw more current; which nets out to s l i g h t l y less power, a tad more rotary 'slip.'
Unless the motor controller has voltage sensing -- which would object -- induction motors will tolerate the 200-230 VAC ( or 208-240 VAC ) range without much fuss.
Heater overload elements might require swapping out, though. Check the schedules provided by the NEMA players.
Last edited by Tesla; 02/07/13 05:53 PM.