Yes, the plug that comes with the 220V unit is NEMA 6-30P which has L1, L2, G. The L6-30P also has L1, L2, G. Therefore that particular configuration will work as would any L1, L2, G plug or receptacle made for US 240V such as 10-50P.
You may want to wire in a GFCI PigTail for protection...