Airco: Trying to set up old Airco CV-450 and Miget Spool Gun - NEED MANUALS

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Hello.  I have an old Airco CV-450 with a spool gun attached.  The unit came from an aluminum boat welding shop (SeaArk), I am told. Does anyone have or can you point me to a manual for the Airco CV-450 welder?  Would anyone have a manual or experience with the ESAB welder control shown in the pics? What function does it perform?  And why might mine have a relay hanging out below it?   Does anyone have a manual on these old Miget spool guns??Airco CV-450 Code 0627Serial RH101072Stock 1346-7017-Steve Attached ImagesLast edited by Engatty; 03-20-2021 at 04:03 PM.Reason: Need to add information.
Reply:Have read where the Profax AEC 200 is the same as the Miget spool gun and they have a newer solid state model as well. The pic. showing the wire connections says Esab 08/93 so has been added at a later date. Machine looks to be made by Miller by the serial number and stock number. Most older spool guns required a control box to run them and that's what the Esab part is. Profax/Lenco can probably help you out. https://lencocanada.com/files_500-03/500-3.pdfhttps://uploads.tapatalk-cdn.com/file...ontrollers.pdfLast edited by Welder Dave; 03-20-2021 at 05:40 PM.
Reply:Hey, I didn't think about contacting ProFax.  I have this Profax control box.  I think it drives a Solid State gun.  You're right.  Ask Profax  Thanks.  As many of these CV-450 welders as were produced, one would think that a manual would not be difficult to locate.  There's one guy offering the manual and asking for a CC, but it seems too spooky for me.
Reply:That's why I was confused. You posted in 2 different forums. Better to stick to one forum. Stock number especially makes me think the machine is made by Miller. Miller made some other machines for Airco as did a few different manufacturers. Try contacting Miller for a manual or if they can't help try Esab. Airco was sold off in several different ways including Lincoln getting some. Somewhere in storage I have a 1980 Airco catalogue that lists all the spool guns and controls. The Super Miget spool gun allowed for larger rolls of wire.