Install 3rd A/C

I think I can give you good information here. I have a 2010 40G that I had modded at the factory for a 3rd AC. Doug Haas is the senior engineer at Fleetwood, and I proved to him that the design of the 40G AC system will never cool the rear bedroom without the 3rd AC. He personally took all sorts of measurements. They first tried to put little vanes in the ducts to direct the airflow better. The results were horrible. Basically a waste of time. They then changed both units to 15K high efficiency heat pump/ACs. This also resulted in minimal change. Luckily, I had originally placed an order for a 2009 40G with the then available 3rd AC option, but Fleetwood was falling into bankruptcy then, so I was able to cancel the order. After things settled down with the AIP buyout, I placed an order for the 2010 40G. I had spoken with Doug during the order process as I did some special order options. When we spoke about the deletion of the 3rd AC as an option, Doug said when they did all the cooling calculations, the 3rd AC was not necessary. I told him that if the unit did not cool to my expectations, then he would have to put in the 3rd AC. Well after all the playing around with my coach, Doug relented that they would put in the 3rd AC. Well let me tell you that it was not an easy process. Since they deleted the option, they changed the framing of the roof. Well guess what? There was not enough support for the AC. Now they had to open the roof to install proper bracing and support for the AC. This necessitated them re sheeting and replacing the TPO on the roof as well as replacing everything on the roof. Additionally, you will notice that the paint graphics extend up and over the edge of the TPO. This required them to re paint the graphics. Luckily there was room for another breaker in the panel. They then had to take part of the interior apart to run the wiring, and another thermostat on the wall under the midship tv. The bedroom thermostat is already there, so they used that to control the 3rd AC, and wired the midship thermostat to control the now midship AC. The last thing they needed to do was run a wire for the 3rd AC back to the EMS so that it could be shed if needed to lower the electrical draw. The installation is totally beautiful, and you could never tell it was added. They ultimately wound up installing 3 new high efficiency 13.5K heat pump/ACs. My total draw with all 3 running on high is 36 amps. This leaves 30 amps when running off the genny (total output on the genny is 66 amps). I never have had any problem with having enough electricity when running off the genny. Last thing I can tell you is that the 3rd AC makes all the difference in the world. We were in Las Vegas this summer and the OAT was 117 degrees, and the coach maintained 70 with no problem. I never could have done this before. The best part of all this was that Fleetwood picked up the complete tab including fuel for 2000 miles back and forth. I can tell you that fleetwood really stood by their word. Yes it can be done, but it won't be cheap. I know that there was over 130 hours of labor in the job.