I just bought and installed a soft start kit in my Coleman roof air unit on my 1987 Sunland Express. I purchased this kit on an ebay auction from applianceandair and it is the best $100. i ever spent! I have a small 2500 start 2000 run generator bolted to the back bumper and it wouldn't start the ac before, but will now! Installation was a breeze. Take the top cover off(4 screws) . Remove the cover where all the wires go. Select the black wire and the white wire running to the fan, cut the wirenuts off and hook in the soft start as directed! Took about 1 hour start to finish( I'm old and slow)
In use, there will be a slight delay when you turn the ac on. Then you will hear the ac compressor start on the roof, then you will hear the generator pull down and the fan comes on and the ac starts! I was amazed!!! An electrician friend told me he doubted it would work and came by as I was installing it. He too was amazed that small generator could start and run the ac!!!!