Can one relay run two fans?
Yes, you can control dual fans separately. You can use dual thermostatic switches that control each fan individually for example. This method requires a second temperature switch, a little additional wiring, and of course dual relays.
Which is the no wire on an electric fan relay?
# 86 is frame ground off the relay. # 30 is common on the relay. 12VDC hot that will run the fans, make sure the wire size is big enough for the amps. # 87 is your NO ( normally open ) Once the #85 is energized from the thermal switch, the coil changes state and passes #30 to # 87 internal of the relay and send 12V to the fan motor.
How to wire an ON / OFF switch for an auto cool fan?
Run two wires to the fan motor. Cut the power and ground cables from the fan motor. Remove 1/2″ of covering from the positive and negative wires running into the fan motor. Attach one of the new wires to the positive wire and one to the negative cable and solder them together. Protect them by covering them with electrical tape.
Where does the yellow wire go on an 86 fan?
From looking at the directions it looks like the yellow wire goes to the thermal switch therfore your 86 would go to thermal switch. (1 wire thermal) or use a 2 wire thermal and send it 12v+ then from thermal to YELLOW.
Why are relays used in automotive wiring depot?
Using Relays in Automotive Wiring Relays are a mechanical device that can connect or disconnect power to an accessory when it gets a low voltage ‘signal’ from a switch. Some people may ask why they should bother using a relay when you can just wire an accessory directly through a switch to its power source.
# 86 is frame ground off the relay. # 30 is common on the relay. 12VDC hot that will run the fans, make sure the wire size is big enough for the amps. # 87 is your NO ( normally open ) Once the #85 is energized from the thermal switch, the coil changes state and passes #30 to # 87 internal of the relay and send 12V to the fan motor.
Do you need a relay kit for a cooling fan?
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 complete all of the circuits. The first part of the installation is to install the electric fan to your radiator, and remove the mechanical fan.
Where does the wire from a cooling fan go?
The red wire from our relay connects directly to the cooling fan, and the black wire from the cooling fan connects to ground, both wires will utilize our supplied fan harness.
From looking at the directions it looks like the yellow wire goes to the thermal switch therfore your 86 would go to thermal switch. (1 wire thermal) or use a 2 wire thermal and send it 12v+ then from thermal to YELLOW.