As I don't have all day to spend writing this, I'll go through part of the line-up. From the HP air compressors you go forward to the charging manifold located under the HP air manifold. Open the right-hand valve to bring air from aft to the HP air manifold. At the HP air manifold open one of the air bank valves (1-6). 1-3 are located on the left-hand side manifold and 4-6 are on the right-hand side manifold. This allows the HP air compressors to charge that bank. Now if you want to supply air forward, say to WRT, open the HP air forward valve on the charging manifold.
Now, that a bank is on line, open the 225# reducer supply valve (right-hand HP air manifold if 4,5,6 are on line, left-hand HP air manifold if 1,2,3 are on line). Next open the 225# reducer inlet and slowly open the outlet. 3000# air is reduced to 225# air by the reducer and supplied to the Ship's Service Air Manifold (located just forward of the HP air manifold). The Ship's Service Air Manifold supplies 225# air to Aux 1 & 2, Forward and After Trim and the 225# forward and aft air headers. From these headers you get air to pressurize battery water tanks and fresh water tanks, diesel start, ship's horn, blow sanitaries, and air tool connections amongst other things.
The charging manifold also allows you to bring air from the tender or shore and it has a connection to a vent muffler for when the headers are being vented.
Now for the rest, there are reducers all over the place for reduucing air to blow sanitaries, pressurize fresh and battery water tanks, etc.