===== Upstairs Furnace ===== I replaced the blower in the American Standard furnace with a Grainger blower assembly to get more CFM.\\ Wiring:\\ * L1 Common = White L2 can be connected to one of the following:\\ * Black High * Yellow Medium * Orange Medium Low * Red Low On the controller board inside the furnace I have the Cool terminal hooked to Black and the Heat terminal hooked to Yellow.\\ Cap wires:\\ * Brown-White * Brown The motor has the following Dayton Model number: 3LU83J\\ Motor run capacitor is 7.5 Uf @ 370V\\ The blower has a Dayton part number of 4C591B\\