Ahh the cool pulsating Eheim canister with unique wet/dry.
I am sure the manual has it covered and I will only add to make sure to pay attention to priming instructions so you don't burn it out.
I'd be excited too. Those are quality canisters. I had a much older Eheim at one point and was very happy with it. They are very, very quiet and well designed.
Eheim 2227 aquarium Wet/Dry Filter