Dual Electric Fan Wiring Diagram. There are several ways that a dual fan can be wired. With dual cooling fans there are two methods for wiring up the relay kit.
Or a single relay could be used to control both fans. Pin 87 yellow wire pin 85 orange wire pin 86 grey wire pin 30 red wire. Start your wiring project by taking both of the positive wires from the fans and run them to the yellow wires on each relay tab 87.
Fan positive red wire ignition on power source temperature sensor grey wire to battery yellow wire wire connector in line fuse.
Wiring dual cooling fans. The supplied diagram is both the most reliable and easiest method i ve found. There are several ways that a dual fan can be wired. This is based on the draw from the fans if the fans are larger and draw more than 15 amps each it s recommended to install a second relay kit as shown below.
