Voter Services is the authority there. It sounds like you are.

If you are going to college outside of PA, but you still have a "home home" (technically, a "homestead") in PA, then you can remain a PA voter.

This might help: https://www.vote.pa.gov/Voting-in-PA/Pages/College-Student.aspx

You should call your county's Voter Services office and ask. Just Google your county name plus: voter services.