First Class Cooling Fan Relay Diagram

Then connect switched power usually from your ignition switch to the blue wires on both relays tab 86.

Cooling fan relay diagram. With values shown in the diagram the supply to the fan will be at least 7 v. Replace temperature sensor temporarily by a 1 8 ics2 resistor and lower tie value of r. Hayden flex a lite or perma cool brands can provide a 12 volt output when activated.

If the fan does not start at 25 00c. Suggested electric fan wiring diagrams suggested primary cooling fan single speed on off using 12 volt switching devices only for primary activation note. If the fan runs too fast raise the value of r7.

It uses a 40 amp electric relay and electric fan sensor. A relay kit our part number ccfkrl will include everything you need to properly wire up your electric cooling fans with the exception of additional wiring needed to. Connecting a single cooling fan is a rather straightforward system it relies on a separate temperature sender to switch the fan on or you can utilize the cooling fan output if you ve installed an aftermarket efi conversion.

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. That voltage is equal to the 12 v supply less the zener voltage of t3 r r7. Or a single relay could be used to control both fans.

The cooling fan wiring diagram below is what we ve found to be the simplest and most reliable method. Relays shown in these diagrams can provide options for useful features such as an ac override on and or. Push button starter switch wiring diagram lovely 48 best 12 volt cooling fan relay wiring diagram beautiful diy radiator fan relay 1995 toyota camry cooling fan wiring diagram trusted schematics for.

If you ve got an electric cooling fan on your classic car or hot rod and you want to know how to wire it with a relay you ve come to the right place. Next splice together both black wires.