I just had this same conversation on the Prevost site. As I'm not an electrician or anything close, I was concerned as our electricity at the park that I store the coach seems to fluctuate.
I was told by 'master-minds' that all is good until it hits 109.
I have i-link with my new i-phone where I can connect with our coach. Anything that I can do on the i-pad in the coach, I can do remotely with the new i-phone. I can check my electrical connection. It's been fluctuating from115-121 on each leg which is acceptable.
I control the air conditioning in the coach from home on my i-phone. Since we have four units, I will run two or three during the heat of the day and then run the fourth 'only' at night and let the others rest. I will turn off the electric water heater during the day and turn it back on at night during lower power usage.
MM.