Classic, It amazes me the creativity of some people.
It's not if your doing it right it's whether your doing the right thing that is important.
I wonder if he took out the original fd.
See some RTUs that way in our area. One strip center has some 35 year old Bryants with Janijunk's hacked into them. Sure hate to see what the heat exchanger looks like unless it's been changed about 5 times.