Well after a 2 week vacation in 95+ degree weather my mind was made up. I need a second a/c (preferably in the bedroom). Now we are talking about a Winnebago Vista 30t (30 Ft 3 slides) with one Coleman Mach 3 (15k a/c, heat pump) and at 98 degrees outside I could not cool down below low 80's. So I made up my mind to convert from 30 amp to 50 amp service, I also decided to swap out the 4kw Onan for a 5.5kw Onan that I took out of my 5th wheel prior to selling it. So it began, 1st thing I did was start with the transfer switch, then swapped out the breaker box w/converter, I the swapped out the shore power cord and the main line from the transfer switch to the now new breaker box as well as an external convert charger. So now I have a breaker box with two hot lines in (50 amp service achieved) now it was time to tackle the generators. The 4kw's mount was welded in (had to cut it out and grind it smooth, next was to order in the new mount for the 5.5kw. Had my frame reinforced and the new generator mount welded in (the shop that installed it, checked it by placing over 500 pounds of weight in mount). Next was to get the 5.5kw in the mount (placed it on a few wood blocks then backup over the generator so that it was under the RV below the mount) 3 friends and alot of wood blocks, floor jack and jack stands we finally got it into the mount and secured. Hooked up generator to the transfer switch and verified that it worked as it was suppose to. All wire to the transfer switch was 6 gauge wire, 8 gauge from the transfer switch to the breaker panel (ran numerous checks on eletric system, all is good). The last piece of this puzzle was not the hardest, but sure was the most nerve wracking as I had to cut a hole in my roof (14x14 same size as a vent). I then needed to get power to the new a/c through the Styrofoam roof insulation and over to the breaker box. I did get the wires all ran, 2nd thermostat and ducting setup the way I wanted (all the ducted vents forward of the front a/c work on front a/c) and I blocked off the rear ducts, then installed duct tunnel from the rear a/c to the ducts to the rear of the front a/c allowing the rear a/c to use the ducts to the rear off the front a/c). I also installed Chill Grills on both front and rear a/c's. Now 98 degrees outside in Lawton Oklahoma about 55% humidity, it's a cool 70 degrees inside my rv. Pics or video to follow once I figure out how to resize.
30 amp to 50 amp conversion and add a second A/C
Linear Mode
