Installing new water heater with electronic switch etc in a 74 sovereign?

[desertratt]

Anyone no what wires i would need to run to install a newer style water heater with switch inside to start water heater instead of going outside to light old water heater?

Thanks
Rick

[lahrfarm]

If it’s 110v/gas, you will need 110v, 12v, and control wires to switch. Gas only wont need 110v.

[desertratt]

So i just run 12 volt from fuse panel? Two wires ? What amp?

Thanks Rick

[lahrfarm]

The 12v is just the igniter, not high amp. Maybe 1amp, you can get it anywhere close.

[lahrfarm]

Yes + and -

[fwjumper]

You may have a 12 v cigarette lighter-type outlet in the bathroom. You could get the 12v from the back of it. If not, maybe from a light switch. Run a 12 ga wire which will be ample for the use, especially if you don't have to run it very far. One wire for the 12v, and then run the ground to the frame of the trailer near the water heater. It will have a ground wire in the harness. Extend it if needed to get it to a good frame attachment. Main thing is to make sure that any 12v connections you make in the wall cavities are absolutely patent and allow no possibility of shorting to the skin. The spaces are tight, so sometimes it's a challenge.

[dbj216]

I've installed three of these things over the years. I replaced and moved the water heater in my 75 Overlander. which is similar to your bigger Sovereign.

Here is a link to the Atwood installation manual. Page 7 or 9 has the wiring diagram.

http://waterheatertimer.org/pdf/Atwo...aintenance.pdf

I ran new power wires from the fuse panel as my trailer didn't have 12 v handy to the new location of the water heater. I used 12ga wire. I installed the switch to turn on and ignite the water heater in the bathroom where it is handy in the morning.

David

[desertratt]

That is a great idea. I do believe there is a cigarette lighter behind the mirror.

Thank you!
Rick

[desertratt]

Thank you i can pull in new wires as the water heater and the fuse box on same side. Could fish them under the shower pan. Thanks for the pdf as well great help.

Rick