Good point about the manuals. Your model specific manual isn't very model specific.
To answer your question, have the last 8 numbers of your VIN handy and call Jayco customer service to check your specific build sheet to determine what was installed and what was not.
(800) 517-9137 is the number for Jayco motorized group.
Why do they install tank heaters to protect against freezing while leaving the lines vulnerable? Not sure, but they did with mine too. Their customer service is great though. Provided me with the plumbing schematics for everything above and below floor. Should make it easier to buy the right length of heat tape and insulation when I do this project in January, brrrr.
Good luck[emoji851]
Sent from my iPhone using Tapatalk