How to wire a condensing fan motor for 3 vs. Some condenser fan motors wire to a circuit board while others use proprietary plugs for their connectors.
Wiring A Ceiling Fan With 4 Wires Mycoffeepot Org
4 wire fan motor diagram. The ins and outs of a 4 wire computer fan. Used 4 wire fan for these two projects. Jesse grandbois submitted this tech tip to help make it simple. It reveals the elements of the circuit as simplified shapes and the power and signal connections between the tools. Simply a 3 wire fan reports its speed and a 4 wire fan lets regulate its speed by an external signal usually coming from the motherboard. Collection of 4 wire ceiling fan switch wiring diagram.
However the 4 wire fan is a little different as it has the fourth control wire to input a signal to the fan that commands it to speed up or speed down. 4 wires is a common question by new techs. On these 4 wire computer fans i have found that some times they require an input to tell it how fast to spin so simply supplying power to 2 of the wires will not work if you have a 3 wire fan however you can supply power to the red and black and leave the white disconnected. Finally this guide is intended to be used as a general overview of common condenser unit wiring schematics. This is a quick one on the difference between wiring universal condenser fan motors and why brownwhite is the same wire as white. A wiring diagram is a streamlined standard pictorial depiction of an electrical circuit.
For a visual picture of typical wiring configurations reference the following guide. Hvac condenser fan motor wiring diagram.
Gallery of 4 Wire Fan Motor Diagram
