Electric Cooling Fan Relay Wiring Diagram

Volvo electric primary cooling fan conversions.

Electric cooling fan relay wiring diagram. Or a single relay could be used to control both fans. Even though the iso relays are rated at 20 amps for this application experience has shown a large fan motor. Electric fan connection using a fan relay kit. A wiring diagram is a simplified traditional pictorial depiction of an electrical circuit.

For my 8 page assortment of relay wiring diagram options including two speed circuits click here pdf file. Most stand alone adjustable thermostats i e. 86 gray white wire goes to the ignition switch. Install a 10 gauge wire to the battery positive terminal with the use of a round electrical connector.

The cooling fan wiring diagram below is what we ve found to be the simplest and most reliable method. It uses a 40 amp electric relay and electric fan sensor. Locate the relay in immediate proximity to the fan being used. It uses our 40 amp electric relay kit part number 91064044 and electric fan sensor part number 91064013.

Find a spot to secure the relay with a screw or a bolt. 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. Hayden flex a lite or perma cool brands can provide a 12 volt output when activated. It reveals the components of the circuit as simplified shapes and also the power and signal connections in between the tools.

The supplied diagram is both the most reliable and easiest method i ve found. Conversion project 2 2009 volvo 940 850 16 inch fan not recommended for hotter climates volvo 940 850 cooling fan this is a very popular fan used in many conversions. Likes to use two relays to power up one large electric cooling fan. Assortment of 12 volt relay wiring diagram.

The first part of the installation is to install the electric fan to your radiator and remove the mechanical fan. Remove the nut on the battery terminal and put the wire connector over the bolt and tighten the nut. 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. 85 black wire.

30 other red wire needs constant 12 volt power from the battery.