There is a lot of information about FEC 100, and I am absolutely sure that it will be very easy for you to watch a video in order to find out how to use it the right way. I also bought a generator a few months ago, but I couldn't find an electrician who could be able to help me. A few weeks I was looking for a specialist, and when I realized that finding an electrician will be impossible, I started searching for information in order to install it by myself. Thankfully I stumbled on this site https://thetoolscout.com/how-to-hook-up-a-generator/ and found out all the necessary information. I think you should also search for such guides.