I have similarly wide rims (Sun CR18, 22.5mm) and roll 32mm Panaracer Urban Max tires. I'm also 210-ish, and I keep 80psi front and rear. When I use Pasela TG, I'm comfortable dropping to 75psi rear and 70psi front for a slightly more supple ride.

Even with the larger tire volume, you can still risk a pinch flat if you go too low and slam into some of the construction gaps and chuckholes we've got around here (I'm assuming the Bellevue in your location is Washington; and if it is, whereabouts d'ya live?)