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    1. #1
      Join Date
      Jul 2006
      Location
      Hackettstown, NJ
      Posts
      1,026

      pmw fan controllers

      Who makes these nowadays. Spal had a fan pmw v3, painless had a 30140 dual fan one. None are available today. The neat point is they ramp up the amps and use variable speeds for the fans. Just see on/ off relay style like Dakota digital PAC 2700.

      Any pmw units around ?



    2. #2
      Join Date
      Jun 2001
      Location
      Newbury Park, CA
      Posts
      5,821
      Country Flag: United States
      http://www.dccontrol.com/

      I have one going in my car soon. Tell Brian I sent ya.
      VaporWorx. We Give You Gas http://www.vaporworx.com

    3. #3
      Join Date
      Sep 2010
      Location
      Santa Clara, CA
      Posts
      620
      Country Flag: United States

      pmw fan controllers

      Gentleman definitely needs some marketing help with those products.... I've read everything twice and still have no idea what is what.... Maybe it's just me.
      Steve

    4. #4
      Join Date
      May 2002
      Location
      Northern California
      Posts
      10,715
      Country Flag: Bosnia Herzegovina
      LOL....you know, the I/O line along with the 50p35 the new 2sp2 controller utilizes an 80A, 120A peak relay
      MrQuick ΜΟΛ'ΩΝ ΛΑΒ'Ε

      https://www.pro-touring.com/image.php?type=sigpic&userid=4&dateline=1323422564
      Follow us on Facebook

    5. #5
      Join Date
      Aug 2004
      Location
      Central Florida
      Posts
      476
      Another one here, bought one but haven't got that far in the project to use it yet
      http://www.ronfrancis.com/prodinfo.asp?number=AR%2D99

      Ron Francis Wiring AR-99 Summit carries it so should be able to get it in a couple days
      BB

    6. #6
      Join Date
      Jul 2006
      Location
      Hackettstown, NJ
      Posts
      1,026
      I'll research them deeper but at first glance they dont have the features of the variable speed capabilities as the Spal unit did.

    7. #7
      Join Date
      Sep 2010
      Location
      Santa Clara, CA
      Posts
      620
      Country Flag: United States
      The document for the Dakota Digital PAC-2750 http://www.dakotadigital.com/pdf/pac-2750.pdf makes a reference to the "PAC-PWM-1 module for variable speed control of a fan (this takes the place of the fan low relay)" but then never mentions it again, and I can't find any other reference to that product anywhere through Google.... I sent them a question through their website.
      Steve

    8. #8
      Join Date
      Sep 2010
      Location
      Beach Park IL
      Posts
      2,838
      Country Flag: United States
      let us know what you find out Steve. I have used a bunch of the fan controllers but never noticed the pwm module mentioned.....that would be cool if that existed.
      Donny

      Support your local hot rod shop!

    9. #9
      Join Date
      Sep 2010
      Location
      Santa Clara, CA
      Posts
      620
      Country Flag: United States
      Got a very prompt response from Dakota Digital:

      "The Pulse-Width Modulator will allow the cooling fans to run at varying speeds; that is, at a given percentage of capacity. The PAC-PWM-1 effectively turns single-speed fans into multi-speed units.

      Unfortunately, the pwm for the PAC-2750 is not available yet. Looking at the current schedule, we’re looking at sometime this summer for a release."

      So, still a ways away, but there is hope.
      Steve

    10. #10
      Join Date
      Sep 2010
      Location
      Beach Park IL
      Posts
      2,838
      Country Flag: United States
      Awesome! Looking forward to that.
      Donny

      Support your local hot rod shop!

    11. #11
      Join Date
      Aug 2005
      Location
      Hamilton, NJ
      Posts
      4,291
      Country Flag: United States
      Quote Originally Posted by CarlC View Post
      http://www.dccontrol.com/

      I have one going in my car soon. Tell Brian I sent ya.
      I love my dcc controller. I hope his customer service has improved from the many stories I've read. It is a great product.
      Scott from NJ.

      Vent Windows Forever! ...

      Feather-light suspension, Konis just couldn't hold
      I'm so glad I took a look inside your showroom doors

    12. #12
      Join Date
      Jul 2006
      Location
      Hackettstown, NJ
      Posts
      1,026
      Does the DCC unit allow fans to run say 50% and increasingly vary based on temp?

    13. #13
      Join Date
      Aug 2005
      Location
      Hamilton, NJ
      Posts
      4,291
      Country Flag: United States
      The DCC unit has a temp probe. You set it to run at say 185*. It varies fan speed to maintain 185*. It slowly ramps up, it does not jump to 50%. I've never seen my fans at full voltage, even idling for 20+ minutes in 100* heat. The AC on input turns the fans on 50% IIRC, but I don't have that hooked up right now.
      Scott from NJ.

      Vent Windows Forever! ...

      Feather-light suspension, Konis just couldn't hold
      I'm so glad I took a look inside your showroom doors

    14. #14
      Join Date
      Jun 2001
      Location
      Orlando, FL
      Posts
      10,603
      Country Flag: United States
      Quote Originally Posted by BonzoHansen View Post
      The DCC unit has a temp probe. You set it to run at say 185*. It varies fan speed to maintain 185*. It slowly ramps up, it does not jump to 50%. I've never seen my fans at full voltage, even idling for 20+ minutes in 100* heat. The AC on input turns the fans on 50% IIRC, but I don't have that hooked up right now.
      I used it on II Much, and mine behaved exactly like Scott describes. I also added the A/C hookup with a trinary switch and it all behaved flawlessly. Highly recommended.
      John Parsons

      UnRivaled Rides -- Modern upgrades for your ride.

      UnRivaled Rides recent project -- LS9-powered 69 Camaro

    15. #15
      Join Date
      Sep 2010
      Location
      Beach Park IL
      Posts
      2,838
      Country Flag: United States
      Where does the temp probe go on the DCC controller? What's it look like, have a picture?
      Donny

      Support your local hot rod shop!

    16. #16
      Join Date
      Sep 2010
      Location
      Santa Clara, CA
      Posts
      620
      Country Flag: United States
      Looks like it is inserted into the radiator cooling fins; scroll down to bottom of page 1:

      http://www.dccontrol.com/fk55.pdf
      Steve

    17. #17
      Join Date
      Jun 2001
      Location
      Orlando, FL
      Posts
      10,603
      Country Flag: United States
      Right. It's just pushed into the radiator fins.
      John Parsons

      UnRivaled Rides -- Modern upgrades for your ride.

      UnRivaled Rides recent project -- LS9-powered 69 Camaro

    18. #18
      Join Date
      Jun 2001
      Location
      Newbury Park, CA
      Posts
      5,821
      Country Flag: United States
      It's a small thermistor that is placed into the radiator fins next to the radiator outlet. Basically, just shove it in between the fins. It's attached to a small wire that routes to the controller.

      The current generation of DCC pwm fan controllers does not need an on/off feed wire. Instead, once the radiator has cooled via the fan to the minimum set point, the fan goes off. Hence, the fan may run for a short time after key-off to rid the radiator of heat. There is a method to use a key on/off as well.

      The DCC parts are brutes. The standard part has a 55A continuous capacity. That's what's going in mine to run the Mark VIII fan.
      VaporWorx. We Give You Gas http://www.vaporworx.com

    19. #19
      Join Date
      Sep 2010
      Location
      Santa Clara, CA
      Posts
      620
      Country Flag: United States
      Just followed up with Dakota Digital and they informed me that they have scrapped plans for the PAC-PWM-1 altogether, sorry to report.
      Steve

    20. #20
      Join Date
      Nov 2009
      Location
      Austin Texas
      Posts
      641
      Yeah I ordered a controler from DCC a few months ago and after 2 weeks of it never shipping I sent him an e-mail asking when it would ship and he didnt even respond he just refunded my money.

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