Hvac fan relay wiring diagram download. The cooling fan wiring diagram below is what we ve found to be the simplest and most reliable method.
Fan power and ground.
Electric fan relay wiring diagram. Simple fan relay wiring the above image is a very simple and basic fan wiring diagram. Electric fan relay wiring diagram wiring diagram is a simplified tolerable pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the capability and signal contacts between the devices. Description 2 relay wire harness 2 40 60 amp relay tools needed wire stripper crimping tool important each relay will control up to two different fans with a combined maximum draw of 25 continuous amps.
The square relay pinout shows how the relay socket is configured for wiring. 30 other red wire needs constant 12 volt power from the battery. If you use a temperature switch that can be used to turn them on when the engine reaches some set temperature.
It uses a 40 amp electric relay and electric fan sensor. 12 volt relay wiring diagram collections of best relay wiring diagram 5 pin bosch endearing enchanting blurts. Suggested electric fan wiring diagrams converting a 12 volt switch into a ground switch these diagrams show the use of relays on off sensors on off switches and on off fan controllers.
Relay 2 electric fan 1 electric fan 2 87 87a 30 86 85 orange. 12 volt wiring diagram best 12v relay pin 5 and roc grp org in. 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.
The first part of the installation is to install the electric fan to your radiator and remove the mechanical 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. Blue wire black wire to chassis ground diagram 1 kit contents qty.
It can support one or two fans and uses a simple relay circuit to turn them on. This pinout image is only a 2 pole diagram for room on the page purposes but you can get the picture here with this one since a 3 pole will just have 1 more set of contacts. 87 red wire connects to the positive wire on the electric fan.
Electric fan relay wiring diagram by saum hadi posted on august 17 2017 electric fan wiring with switch and relay diagram aux fan relay wiring diagram base bimmerforums the ultimate bmw forum electric fan wiring with switch and relay diagram wiring a gm electric fan relay automotive schematic. The switch can manually turn the fans on or off. 86 gray white wire goes to the ignition switch.
Best bosch relay wiring diagram 5 pole electrical outlet symbol 2018.