Wiring Diagram For Dual Electric Fans

How to wire up a 2 speed ford taurus electric fan the relays i used is the zettler az979 1a 12de for low speed and az979 1c 12d for hi speed. And i am about to purchase and install the spal dual fan set up that several. However two relays will divide the load.
wiring diagram for dual electric fans

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Spal High Performance Cooling Fans

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I have found this to be inefficient as most dual fans pull enough load in amps at start up to blow the fuse for the relay.

Wiring diagram for dual electric fans. Founded in in italy spal has been designing producing and marketing high performance axial fans and centrifugal blowers for over 30 years. Just an idea on how to wire up electric cooling fans for your vehicle cooling fans. The diode part number. The cooling fan wiring diagram below is what weve found to be the simplest and most reliable method.

Other methods that i have used to wire up dual fans are using single relays to control both fans. Here is a picture gallery about dual fan relay wiring diagram complete with the description of the image please find the image you need. 12 volt electric fan wiring diagram by saum hadi posted on july 26 2018 ac fan wiring diagram general helper ac wiring dual electric fans diagrams wiring a relay diagram diagrams instructions wiring a relay diagram diagrams. You could use one relay.

Dual fans with dual relays single speed onoff using ground switched devices only for primary activation using dual relays for two fans is not required. 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. This should be around a 30 amp fuse in order to protect the wiring and relay. Cooling fan relay wiring diagram how to wire a fan relay hvac in dual fan relay wiring diagram image size 730 x 656 px and to view image details please click the image.

Than use a 30 amp relay for ac. And if a relay fails you will still have one fan running. And yes i wired it as in my diagram and hooked up the trinary. This is based on the draw from the fans if the fans are larger and draw more than 15 amps each its recommended to install a second relay kit as shown below.

Or a single relay could be used to control both fans. It uses a 40 amp electric relay and electric fan sensor. Fan power and ground. Wiring dual cooling fans.

With dual cooling fans there are two methods for wiring up the relay kit. Httpsamznto377klrp those fans fit perfect on 68 72 gm a body cars but are not recommended for ls engine.