converter/charger installation instructions

The 7400 Series is/has been phased out and the 4400 Series is the replacement

Here is the wiring for 7400 (4400 S/B same)......LINK

Wiring colors can be confusing cause they are not standard.
So find the wire that goes to frame ground.....then you can ID the colors used.

Should be a simple sett up.
120V AC power input (plug into outlet) and then 12V DC output...battery cable positive and negative and converter chassis ground


And don't worry about where you have posted..........if it's that big of a deal MOD will move for you.

Thanks for replying. For starters,yes,the positive and negatives are simple stuff. There are no batteries hooked up to it,but it does power a 12v fuse block. When I checked the power output I found that there was a line that was hot (powered) hooked up to the system bond lug on the rear of the converter. In my thinking,that should have been a ground wire from the frame. Next off of the fuse panel,there are a heavy red and a heavy black wire ( 10 gauge,stranded) that run to the engine compartment. The red goes somewhere under the dash (haven't been able to find exactly where yet),and the black goes to the positive side of a rely on the firewall. I have been having problems with the engine battery draining and going dead,because of a constant drain of some sort,but there is nothing turned on. I have the van plugged into a 20 amp breaker when not in use,so there should be nothing draining the battery,except whatever is run off of that fuse block and ultimately,the charger/converter. Correct? I would appreciate your opinion and or advise. How was my post posted in the wrong place? Thanks,Bill.

Welcome. In the future please look carefully which forum you are posting in. I have asked the moderator to move this for you.
To answer your question. Have you looked on line for the manufacturer? Why do you believe it is wired wrong? Output 12VDC+ to battery plus. Output negative to battery minus. Pretty simple stuff.