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Just bought a new Syncrowave 250CC, need help wiring it

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  • Just bought a new Syncrowave 250CC, need help wiring it

    Hello all, I've been reading this forum for years and have gained a ton of knowledge, but this is my first post. I've been welding with a mig for several years now and about a year ago moved up to tiging with a little ThermalArc that I got on CraigsList for $300 with the bottle and regulator included.I finally upgraded the other day to a Syncrowave 250CC (a STEAL of a deal again on CL) and need help wiring it. The last owner had it hard wired, but I want to add a plug. There are 4 wires, but because 1 of the wires (white) is cut much shorter than the others (almost completely covered by the rubber seething) I don't think that last owner used it. Exposed are the red, black and green wires.Does anyone know how to add a 220 plug to this? Any help would be greatly appreciated.
    Syncrowave 250CC w/ Radiator 1A
    Millermatic 130XP
    Spectrum 125C

  • #2
    Originally posted by DBookatay View Post
    Hello all, I've been reading this forum for years and have gained a ton of knowledge, but this is my first post. I've been welding with a mig for several years now and about a year ago moved up to tiging with a little ThermalArc that I got on CraigsList for $300 with the bottle and regulator included.I finally upgraded the other day to a Syncrowave 250CC (a STEAL of a deal again on CL) and need help wiring it. The last owner had it hard wired, but I want to add a plug. There are 4 wires, but because 1 of the wires (white) is cut much shorter than the others (almost completely covered by the rubber seething) I don't think that last owner used it. Exposed are the red, black and green wires.Does anyone know how to add a 220 plug to this? Any help would be greatly appreciated.
    I'm not an electrician, but I think 4 wires = a 3 phase machine !
    So it's Not a 220 volt welder.
    Last edited by nfinch86; 09-16-2014, 11:19 AM.
    www.normsmobilewelding.blogspot.com

    Comment


    • #3
      If it's a regular Syncrowave 250 AC/DC, should be just two hot wires and a ground. Can be jumpered for different input voltages, so you might want to double check how it is set up unless you know the guy was using it on 240V.
      Miller stuff:
      Dialarc 250 (1974)
      Syncrowave 250 (1992)
      Spot welder (Dayton badged)

      Comment


      • #4
        Originally posted by DBookatay View Post
        Hello all, I've been reading this forum for years and have gained a ton of knowledge, but this is my first post. I've been welding with a mig for several years now and about a year ago moved up to tiging with a little ThermalArc that I got on CraigsList for $300 with the bottle and regulator included.I finally upgraded the other day to a Syncrowave 250CC (a STEAL of a deal again on CL) and need help wiring it. The last owner had it hard wired, but I want to add a plug. There are 4 wires, but because 1 of the wires (white) is cut much shorter than the others (almost completely covered by the rubber seething) I don't think that last owner used it. Exposed are the red, black and green wires.Does anyone know how to add a 220 plug to this? Any help would be greatly appreciated.
        The Sync is Single Phase machine:

        The previous owner probably used 4-wire cord because he had it on hand.
        You only need 3 of the wires- that's why the white wire is cut short and not used.

        Buy a 6-50P and use the wires that are exposed on the existing power cord.
        Green to the rounded post and the other 2 wires go to the flat blades--Doesn't matter which one as they are interchangeable.

        and check the input voltage as USMCPOP said.
        Ed Conley
        http://www.screamingbroccoli.net/
        MM252
        MM211
        Passport Plus w/Spool Gun
        TA185
        Miller 125c Plasma 120v
        O/A set
        SO 2020 Bender
        You can call me Bacchus

        Comment


        • #5
          Originally posted by nfinch86 View Post
          I'm not an electrician, but I think 4 wires = a 3 phase machine !
          So it's Not a 220 volt welder.
          It's defiantly a 1 phase, says so right on the serial number plate on the front.

          Originally posted by Broccoli1 View Post
          The Sync is Single Phase machine:

          The previous owner probably used 4-wire cord because he had it on hand.
          You only need 3 of the wires- that's why the white wire is cut short and not used.

          Buy a 6-50P and use the wires that are exposed on the existing power cord.
          Green to the rounded post and the other 2 wires go to the flat blades--Doesn't matter which one as they are interchangeable.

          and check the input voltage as USMCPOP said.
          Thank you Broccoli1, I'm going to wire it tonight then. The reason I want to add a plug is because I am using it at my house, and the laundry room is right next to my garage, so until I can fully tackle adding a 220 in the garage I can just unplug the dryer.

          Out of sheer curiosity, what is a fair price for this set up used? Included was a Radiator 1A torch cooler, a 180 tank (full) and a very sturdy = heavy cart to hold it all. Plus the guy threw in 7 clamps, 2 were Mac and the rest were "no names." Isn't the bottle alone worth over $200?
          Syncrowave 250CC w/ Radiator 1A
          Millermatic 130XP
          Spectrum 125C

          Comment


          • #6
            Oh and according to the serial number it's a 2005 model if that help.
            Syncrowave 250CC w/ Radiator 1A
            Millermatic 130XP
            Spectrum 125C

            Comment


            • #7
              Originally posted by Broccoli1 View Post
              The Sync is Single Phase machine:

              The previous owner probably used 4-wire cord because he had it on hand.
              You only need 3 of the wires- that's why the white wire is cut short and not used.

              Buy a 6-50P and use the wires that are exposed on the existing power cord.
              Green to the rounded post and the other 2 wires go to the flat blades--Doesn't matter which one as they are interchangeable.
              and check the input voltage as USMCPOP said.
              +1... Broc is right on the money...

              Here is a link to the manual... just plug in your serial number to get the correct version..

              http://www.millerwelds.com/service/ownersmanuals.php

              The manual will answer a bunch of questions including "Strap" positions for your available shop voltage...
              .

              *******************************************
              The more you know, The better you know, How little you know

              “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

              Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

              My Blue Stuff:
              Dynasty 350DX Tigrunner
              Dynasty 200DX
              Millermatic 350P w/25ft Alumapro & 30A
              Millermatic 200

              TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

              Comment


              • #8
                Originally posted by DBookatay View Post
                It's defiantly a 1 phase, says so right on the serial number plate on the front.



                Thank you Broccoli1, I'm going to wire it tonight then. The reason I want to add a plug is because I am using it at my house, and the laundry room is right next to my garage, so until I can fully tackle adding a 220 in the garage I can just unplug the dryer.

                Out of sheer curiosity, what is a fair price for this set up used? Included was a Radiator 1A torch cooler, a 180 tank (full) and a very sturdy = heavy cart to hold it all. Plus the guy threw in 7 clamps, 2 were Mac and the rest were "no names." Isn't the bottle alone worth over $200?
                Just match up the plug to the receptacle in the wall.
                Ed Conley
                http://www.screamingbroccoli.net/
                MM252
                MM211
                Passport Plus w/Spool Gun
                TA185
                Miller 125c Plasma 120v
                O/A set
                SO 2020 Bender
                You can call me Bacchus

                Comment


                • #9
                  Whats the seial# so that I can pull it up, never heard of a Synch 250 CC

                  Comment


                  • #10
                    Originally posted by cruizer View Post
                    Whats the seial# so that I can pull it up, never heard of a Synch 250 CC
                    i assume he is just stating the Constant Current description

                    CC ac/dc 1- phase
                    Attached Files
                    Ed Conley
                    http://www.screamingbroccoli.net/
                    MM252
                    MM211
                    Passport Plus w/Spool Gun
                    TA185
                    Miller 125c Plasma 120v
                    O/A set
                    SO 2020 Bender
                    You can call me Bacchus

                    Comment


                    • #11
                      Just note that you will not be able to run it at anywhere near full power off of that 30 amp dryer outlet. I don't think that you are going to have much luck plugging that recommended 6-50 P plug into that outlet either. Match the plug to the outlet and run at reduced power and you will be OK until you get the correct power line and outlet run. See your owner's manual for the input/output power curve.

                      Comment


                      • #12
                        Originally posted by davido30093 View Post
                        Just note that you will not be able to run it at anywhere near full power off of that 30 amp dryer outlet....
                        Our circa 1994 (?) Sync 250 with a Coolmate 3 has popped a 70A breaker once or twice on real cold startup. 30 Amps is barely enough to get the unit up and the fan running.
                        Miller stuff:
                        Dialarc 250 (1974)
                        Syncrowave 250 (1992)
                        Spot welder (Dayton badged)

                        Comment


                        • #13
                          That machine is not designed to be cobbled on a dryer circuit.

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