Espar Diesel Furnace Wiring Help

[GunniLuv]

Reaching out to the brother/sisterhood for some wiring help. Greg, are you listening?


Bought an Espar S2D2 furnace for my '06 EB 350 SMB. I've got everything installed except the wiring for power. The 12v fuse box is labeled 1-6, slot 6 is empty, but is labeled "15A - Furnace". I'm going to attach my positive lead to the right post here. What I don't know, and I DON'T HAVE my Sportsmobile owners manual, can't find it, is where to attach to the house battery negative? If anyone can describe where my house battery negative lead terminates inside under the bench, I'd sure appreciate it. I'd attach a pic or two but I can't figure out how to upload a damn photo.

[simplesez]

I'm not an expert but I've installed a lot of stuff. In my experience you don't connect the furnace ground to the battery ground. You ground it to the chassis itself. You want a short ground line not something many feet long.

If you are asking where the house battery ground wire goes it likely goes to a spot near the back wheel well. Again, it should be a short line of wire.

Good luck!

[GunniLuv]

I mispoke; not the "ground" wire but the BROWN wire. I heard what I want to hear. So I DO need to attach the negative wire to the negative battery terminal.

[Scalf77]

Pretty much as explained above, there will be a ground to frame connection usually on the wheel well.




You would generally attach the brown wire there.(this is ground connection for heater)

-greg

[GunniLuv]

Thanks for the responses, and for the phone call, Greg. Furnace is up and running. Helluva lot easier than I anticipated, ground wire snafu notwithstanding.
Thanks again.

[basssears]

Long term, to make your life easier, consider installing a nice big negative bus bar somewhere easy to access... all your negatives go to the bus bar and then one big lead goes from the bus bar to the negative terminal on the battery.