DCC fan controller FK45 install

Discussion in 'Electrical Systems' started by 73 Z, Aug 12, 2018 at 1:06 AM.

  1. 73 Z

    73 Z Veteran Member Gold Member

    740
    3
    Jun 9, 2007
    Los Angeles, Ca
    Idling in garage once temp reached 185/90, didn't hear fans yet! Then verified they were indeed spinning. Let idle for 20+ min temp stayed 185/90 yet fans are very quiet compared to running relays and the forgettable switch, Nice! 20180804_164513.jpg 20180805_171743.jpg 20180811_211733.jpg 20180811_211752.jpg
     
  2. dave@ztech

    dave@ztech Veteran Member Lifetime Gold Member

    996
    92
    Mar 27, 2016
    NY
    Could you provide a little more insight , what exactly , does that controller do, different from a relay? And why is it quieter?
    Thanks
     
  3. 73 Z

    73 Z Veteran Member Gold Member

    740
    3
    Jun 9, 2007
    Los Angeles, Ca
    From what I know, a relay is basically a switch usually controlled by another switch Its either on or off. My previous electric fan set up was just that either on or off via a switch, and starting/running at 100% you could hear it over the headers and a healthy 383.
    The DCC FK45 starts and runs the fans from 0 to 100% depending on cooling needs. No switch, relays required easy install (pos/neg) to battery and (pos/neg) to fans then insert probe in lower outlet of radiator. I couldn't even hear the fans for the 20min I let it idle in garage, but they where spinning just enough to control the temp and let the 383 take the lead mic.

    Now I need a hydro boost set up, so I don't have to run the annoying brake booster vacuum pump, Also noisy. But I just freed up 2 relays to do the relay conversion for the head lights!
     

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