A/C and Arizona Heat Wave
I am having AC and voltage related issues which have showed up with high temperatures. 118 yesterday, same for today, and who knows for how long. I started having cooling issues with the heat. My Mach...
Forum Discussion
ktmrfs wrote:I only have the rooftop unit on RV power. The portable is on a different branch with full power.Davidlee64 wrote:
RV is at my house. I am not sure what gauge the wire is running to the outlet, or the the breaker on the outside wall from the house. It was already here and setup for an RV. There is a dedicated 30A cb for the RV outlet. I didn't feel like opening the panel to inspect the wire gauge. It is about 150' (min) from the house to the breaker box, and another 75' to the socket to plug into. I suspect a below minimum wire size as the conduit to the plug is 1/2" metallic.
I suspect the issue is the long run. 225ft is a LONG run, and normally would require increasing wire size at least by at least one, if not two.
IMHO for that long a run and a 30A breaker to run 2 AC units, you should have at least 8ga more likely 6ga wire, not the likely 10ga that might be there.
also resistance of copper goes up as temperature increases. That doesn't help either in this case.
