Where does the C wire go in my A/C - Furnace?
It doesn't look like your unit exposes the C wire directly, so you'll have to run your own wire from the transformer.  Not sure where the transformer is physically in your unit, but here it is on the schematic.



You'll notice a terminal on the secondary side of the transformer, with a bunch of blue wires connected to it. This is the C terminal, and where you'll want to connect your C wire.