Living and camping in Texas, this was a huge deal for me. Dealer told me it could be done, I paid them an extra $1200 to do it. The service manager called me and invited me down to the shop. Turned out it couldn't be done for a few reasons:
- No Structural Supports in the rear roof
- NO electrical wiring in this area either
- 3 AC units require a variable switch that allows them to work together due to electrical limitations, one cycles out before the 3rd ac kicks in.
It was almost a deal breaking decision for me, deciding to move to touring with factory 3 units. It fouled many other things I liked about it. In the end I decided not to and stayed with the 398v and got my 1200 dollars back.
We have camped through the summer in blazing heat and we never really notice it.
- I purchased 4 Vornado fans strategically placed throughout the unit to keep the AC circulating. (these fans are awesome and very worth the amount of money they cost)
- I personally tinted every window in my trailer with the highest strength reflection tent available. Tint has a silver backing that really looks sweet on the outside of the camper. Additionally you cant see inside from the outside, ever.
With 100 degree exterior temps and no shade, the unit stays around 70-72 during the day in the main unit, hauler stays about 75. Trying our darnedest to keep the doors closed.
When the sun goes down you had better grab a blanket.