RecPro RV A/C

I just installed a RecPro 2801 ( 9500BTU, $1100 ) on a 2012 Keystone Springdale 179. My roof is 5" thick, so I needed the thick roof kit, which worked fine. It's little tricky to change the duct to the longer one, make sure you screw it out in the correct direction, which was clockwise for me. Otherwise, you end up tightening it and it's very difficult to remove. Putting the new one on is a little tricky, but after a few tries I got it. My old AC was a Dometic Brisk II. This new one is dramatically quieter. However, I hoped to run it off a single Yamaha EF2000is ( 1st generation), and it did not work. Later I took the cover off and found out the "locked rotor amps" is 52A! So, there is no soft starting in this thing. At least it’s less than the 62A of the Brisk Air. Looks like mounting a SoftStartRV will be tricky, I might do it. Have to mount it under the outside air fan. I suspect they say "does not need a soft start" because it does not have a loud "thump" when the compressor starts. A soft start can fix that with any AC. The reason this one does not thump is the excellent mounting of the compressor on springs that isolates it from transmitting compressor sound to the RV. When I saw that SoftStartRV has a wiring diagram for this unit, I knew it must need a soft start. I was able to measure the inrush current with a special meter, and it showed 48A, close to the 52A on the label. So far, the highest running current I have measured is 6A, but others have reported 9A. Unfortunately we have had a very cool summer so far, so I have not had a chance to see how well it cools our small 18' trailer. But, the prior 13500BTU unit was clearly far larger than needed, so I am confident this will work fine.