Register now to get rid of these ads!

Technical Help been searching for 2 hours for a simple Spal wiring to toggle switch

Discussion in 'The Hokey Ass Message Board' started by Shelby12, Jun 5, 2018.

  1. Shelby12
    Joined: Feb 10, 2011
    Posts: 105

    Shelby12
    Member
    from Indiana

    I am leaving for a car show in a couple days and there is a parade of cars. I sometimes overhead in a parade due to a low volume of air going through my radiator. So, I picked up a quick Spal fan from Summit Racing, and a relay with pigtails. Great! I got it today and am trying to wire it up FAST for the show.
    I just want to wire it up to a manual toggle switch under my dash. I don't want a thermostat sensor of any kind. I just want to flip a switch and have the fan come on.
    I know I need to wire it through a relay but I have searched and searched and can't find a wiring diagram that is just the fan, relay, and toggle switch. They all have sensors, thermostats, over ride switches, etc.
    I just want a simple diagram on how to wire my fan, through the relay, to toggle switch.
    Before this gets into a discussion on the value of sensors etc. I don't have time to do that right now or I would.

    Does anyone have a rough sketch of how to wire the fan to a toggle switch using a relay?

    Some say use the toggle switch for the ground instead of the positive? Any help would be greatly appreciated. Thank you.
     
  2. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 13,419

    Johnny Gee
    Member
    from Downey, Ca

  3. Not to be a smart ass....Do you know how a relay works? and how to wire one?
     
  4. sevenhills1952
    Joined: Mar 14, 2018
    Posts: 956

    sevenhills1952

    In a hurry I would put a fuse in holder near battery +. If fan draws, say, 10 amps a 20 amp fuse should be fine. Then use a 20 amp toggle switch.
    If you want to wire a relay, relay has basically two parts, coil & switch. So I would still want fuse protection, fuse close to battery positive, (14-12 ga.) wire to relay normally open contact...other contact to fan +. Fan -- grounded as well as one side relay coil. Other side relay coil a wire into car switch, other switch side to a power source. 20180605_210445.jpeg 20180605_210710.jpeg 20180605_210832.jpeg

    Sent from my SM-S320VL using Tapatalk
     
  5. Dooley
    Joined: May 29, 2002
    Posts: 3,008

    Dooley
    Member
    from Buffalo NY

    The spal fan if wired correctly has an option for an override switch as the a/c switch mine is wired through a toggle but controlled by a sensor that turns it on or off

    If you try to start the car with the fan running
    the override will allow you to turn it off for full voltage to the ignition
     
    Last edited: Jun 5, 2018
  6. Atwater Mike
    Joined: May 31, 2002
    Posts: 11,619

    Atwater Mike
    Member

    I'm just watchin', to see how many rod scholars dip their oars into this shallow problem.
     
    J. A. Miller likes this.
  7. 7 hills 52 has the setup I'd use 'till I had time to do it right.
     
  8. Shelby12
    Joined: Feb 10, 2011
    Posts: 105

    Shelby12
    Member
    from Indiana

    If I knew how to wire it, I wouldn't have asked. I just made this diagram. Does this look right?
    [​IMG]
     
    Dooley likes this.
  9. Joe H
    Joined: Feb 10, 2008
    Posts: 1,663

    Joe H
    Member

    Yes, use 12 gauge wire to the fan, 16 or 18 for the switch. No need for heavy wire all the way, and you can use a power wire inside the cab in stead of pulling off the battery for the switch side.
     
  10. Shelby12
    Joined: Feb 10, 2011
    Posts: 105

    Shelby12
    Member
    from Indiana

    Thank you
     
  11. Shelby12
    Joined: Feb 10, 2011
    Posts: 105

    Shelby12
    Member
    from Indiana

    Thank you everyone.
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.