I remain perplexed at the question, at what OP is trying to accomplish.
It's a Coleman Rooftop, not ducted? With Controls on the Unit? That's what we have. Two knobs. One Knob is OFF, Low Fan, High Fan, Low Cool, High Cool. When it's in "Cool" the Second Knob is Temperature. Fan runs in its Low or High setting and Compressor cycles.
Just trying to figure out what's wrong with that and what OP wants to change. If he wants the Fan to cycle WITH the Compressor (totally OFF when Second Knob doesn't call for cooling, there's a thread here where somebody did that with a Relay. I think, though, that temperature sensing would be erratic with the Fan Off.
Then others have not wanted the Compressor and Fan to start in unison on other A/C's because of the two start demands thrown onto the generator at once. They've added an electronic delay to let the Compressor start first and kick the Fan on a couple seconds later.
At least for me, I'd need more info to try and understand the current status and the desired outcome.