If i am understanding correctly you are purchasing a NEW filter?
IME you "MAY" get hit with a "mini cycle", so i recommend getting the "API Freshwater Master Kit" so you can measure your ammonia, nitrite, and nitrate levels as the "MAY" go crazy.
There are a couple of ways to help make sure this doesn't happen.
1. Place old filter media in the new filter if it fits.
2. Get a cup/jar and drain the bio-wheel into the jar/cup so that all the liquids from the bio-wheel go into the cup/jar, then turn the NEW filter off and pore the liquid stuff on the new bio-wheel.
3. If u can let the New filter and the OLD filter run for 2 weeks at THE SAME TIME!!! So the NEW filter can build up good bacteria.