Sundown zv5 15 on saz3500d

I just bought a zv5 15 thinking it was dual 2 ohm and it’s dual 1 ohm. I have a few questions. First, can it be recone to dual 2? Because I read some motors are only configured to function on the original impedance. Idk. And if I can’t get it recone, can I run that amp at .5 ohm unclipped on that zv5 and not overpower it? Should I run it at 2 ohms? I hope it can be reconed to dual 2. In need of help. Thank u.