Hi tex1982,
Welcome to the Heartland Owners Forum and to the family. We have a great bunch of folks here with lots of information and all willing to share their knowledge when needed.
We have a great file of manuals and user guides written by users of rv's that are really good. Just tap on the "Tools" tab at top of page. Don't think you will find a drawing or schematic of the plumbing for the units, but if you have a problem I'm sure one of our member will jump in to help with good information.
Be sure and check out our
Heartland Owners Club. Join us at a rally when you can and meet lots of the great folks here and make friends for a lifetime.
Enjoy the forum and your Cyclone.
Jim M