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10-13-2017, 02:57 AM
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#1 |
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Registered User
Join Date: Jul 2017
Location: Myrtle point oregon
Posts: 13
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Dual electric fan
Sorry if this has been discussed,I need help for my first time wiring dual radiator fans!! Not to smart on wiring please help!!!
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10-13-2017, 08:14 AM
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#2 |
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The Older Generation
  
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,321
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Re: Dual electric fan
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I will move this to the electrical forum for you. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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10-13-2017, 08:51 AM
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#3 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Dual electric fan
How do you want them to work? We need more info.
Google this and it will bring up all kinds of schematics to look at. 
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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10-13-2017, 10:46 AM
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#4 |
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Msgt USAF Ret
 
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,703
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Re: Dual electric fan
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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10-13-2017, 02:26 PM
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#5 | |
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Registered User
Join Date: Jul 2017
Location: Myrtle point oregon
Posts: 13
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Quote:
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10-13-2017, 02:49 PM
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#6 | |
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Registered User
Join Date: Jul 2017
Location: Myrtle point oregon
Posts: 13
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Quote:
I have googled just get to many conflicts Want both fans to come on by thermostat , already have lighted toggle over ride. Posted via Mobile Device |
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10-13-2017, 04:17 PM
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#7 |
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Msgt USAF Ret
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,703
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Re: Dual electric fan
1. Run 10 gauge red power from battery or alternator battery junction to 30 amp fuse , then to the no. 30 terminal on the relay. i recommend a 40 amp relay.
2. Run another 10 gauge wire from the no. 87 terminal on the relay to a junction of the two fan power wires. The fan is bi polar which means that if you reverse the ground and power wires on the fans they will run backwards. Yours may not do this but I think they will. So you have to know which wires to make positive and which to make ground and you have to match both fans so that they will both pull air through the radiator. 3. Ground one side of the Hayden probe to the radiator support and run the 16 gauge wire from the other terminal to the no. 85 on the relay. Also ground one side of the override switch and run the other side to the same no. 85 terminal on the relay. 4. Loop a short 16 gauge red wire from the 86 terminal on the relay to the hot wire on the no,30 terminal on the relay and the fans should run when the OR switch is thrown or when the Hayden probe is temperature activated. You might also want to wire in the diode on the 85 terminal as recommended in the website, to prevent arcing in the relay. What size fans do you have? One fan, if large enough might cool sufficiently. You also have the option to bypass the relay with a 30 amp rated switch in case the relay fails.Just run a 10 gauge wire from 30 on the relay to the switch and from the switch back to 87 on the relay. I think I have this right but I'll check the schematic and confirm.
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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10-13-2017, 04:26 PM
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#8 |
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Registered User
Join Date: Jul 2017
Location: Myrtle point oregon
Posts: 13
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Re: Dual electric fan
Posted via Mobile Device
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10-13-2017, 04:39 PM
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#9 | |
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Registered User
Join Date: Jul 2017
Location: Myrtle point oregon
Posts: 13
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Quote:
Everything is hooked up except thermo switch Posted via Mobile Device Last edited by Mike Roberts; 10-13-2017 at 05:13 PM. |
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10-14-2017, 05:47 PM
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#10 |
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Account Suspended
Join Date: Jun 2011
Location: Des Moines, IA.
Posts: 4,143
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Re: Dual electric fan
What kind of dual fans are you using? If you're running any type of OEM dual fans a single 40a relay isnt gonna cut it.
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10-15-2017, 12:43 AM
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#11 | |
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Registered User
Join Date: Jul 2017
Location: Myrtle point oregon
Posts: 13
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Quote:
12" puller fans,having other problems. Yea have two signal stat 12v40a relays with Hayden thermo I will get some help tomorrow.!!! Thanx gmachinz8060742 Posted via Mobile Device |
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10-15-2017, 07:53 PM
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#12 | |
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Registered User
Join Date: Aug 2014
Location: Pauline,SC
Posts: 10
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Re: Dual electric fan
Quote:
buyer beware... google gmachinz and check before you send money... Jabin, I'm not going to stop posting till I get what I paid for....
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1993 Chevy K3500 CCDRW Coming soon, frame off resto, Cummins 6bt swap. |
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10-15-2017, 09:00 PM
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#13 | |
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Registered User
Join Date: Jul 2017
Location: Myrtle point oregon
Posts: 13
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Quote:
Thank you sctrailrider I've bought all I'm gonna just trying to get it hooked up. Did all that was suggested,have power at 30pin and67 with toggle on have friend coming over tomorrow. Will keep posted Posted via Mobile Device Last edited by Mike Roberts; 10-15-2017 at 09:09 PM. |
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Linear Mode
