i really advise to check the upper themroast to check the connection or wiring digram to see what it is setup and most WH are set up with ONE element running at time never both unless see the junction box come with very hevey wire like # 6 or 4 gauge wire but majorty of them use either 12 or 10 AWG there( most use 12) but VERY few WH have both hook up at the same time that is restricted to commercal appiactions i allready deal with 3 ph units so kinda instering to know

merci marc

Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)