I looked on the Tennessee website on license search and verification and I now have a license number. It also says License status: application in process.
I am assuming this means I passed?
I see you are in Tennessee. Have you talked to the Trane office in Knoxville?
They have a guy there that is an expert on controls. He may be able to help
you out. His name is Steve Cole.
I also got h3 = 71.55. Not sure why they worked it that way unless they were just showing
an alternate way to work the problem. Many problems can be worked at least two or three
different ways.
Good Luck