High speed is supposed to be the blowers rated voltage which I believe to be a nominal 115 volts. At least that is the case on all that I've seen. Your instruction manual is silent on that. Usually the house is about 120. That would leave a bit of slack to allow the trim controls to match local conditions and still some wiggle room. You can check it on the motors name plate.
Since you didn't have a qualified installer do that part of the deal is your warranty even valid?
Better read the fine print.
Since you didn't have a qualified installer do that part of the deal is your warranty even valid?
Better read the fine print.