I purchase a whole building full construction equipment and a Millermatic S-42GL was in the deal. I just download an owners manual and did not see anything but DC power source talked about. Will my old SA- 200 or Hobart G- 250 run it okay? Does it need cc or cv? Is there any way to damage the welder with one of these wire feeders? It looks really straight foward and just what I need for fixing some rusted out 40 yd roll-off boxes I have.