Dumb Computer Fan Wiring Diagram Switch. The fan unit has a ground for each fan. So in the above diagram the fan speed regulating switch contacts on l 3 and 1 side and the line current is start to run wire of fan and 15 uf and the fan on low speed.
Read or downloads. Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable g green wire controls fan on auto the diagram shows how the wiring works. Dc 12v computer fan wiring diagram base website 4 wire.
These diagrams show the use of relays onoff sensors onoff switches and onoff fan controllers.
Lets see the fan on med speed. One trick that we 2 to print the same wiring diagram off twice. Move the computer power from the engine fuse to the vent fan fuse. The source hot is spliced to the red wire which is connected to one terminal on the switch at the other end.