How do replace my AC unit with a Maxxair fan?
I got rid of the rotten old AC unit and want to replace it with a Maxxair. Problem is I don't know how to wire it. Do I have to run all new wire to the battery (or wherever it runs to) or can I use ...
Forum Discussion
SoundGuy wrote:christopherglenn wrote:
And make sure you flag the wires as 12 volt only - so the next guy doesn't set something on fire by putting them back into the 120 volt breaker.
Ac wiring black is hot, white is neutral (ground). DC wiring black is ground red is hot (+12). In this case I would use the white as a +12.
And therein lies the rub ... Romex used to feed 120 vac would normally be colour coded black & white with a separate ground wire, black being hot and white being neutral. If converting use of this cable for feeding 12 vdc I'd do just the opposite you're suggesting and use black for + 12 volts and white for - 12 volts. To avoid any confusion later on the solution is to label each wire at both ends. All that said, I personally wouldn't convert a 120 vac cable for 12 vdc use and would instead just pull +/- 12 vdc from a nearby overhead light.
Pulling wire in a home and in an RV are two entirely different animals. The wire is already there, just use it for the intended purpose, intent is 12 volts this time. I think you guys are over complicating an easy task. Done that kind of thing before myself. While I would prefer stranded over solid for low voltage application, the draw of a vent fan and voltage drop won't be an issue at all.
