I bought something for my AF811 - it's BIG and HEAVY!

BlindGuynAR wrote:
The following I learned the hard way (trying to understand why I kept getting overload alarm running two AC's) and I mention it to you as it wasn't obvious to me. Sorry if you already know the info.

The 120/240 operation switch is important. What you have is basically two 2750 watt generators that can surge to 3250 for up to an hour. Your generator is actually rated 5500w continuous and 6500w for up to an hr.

When in 240 they are run independently to create the two separate out of phase 120 circuits for a total 240v..

When in 120v mode the two are running in parallel mode to combine power for max watts at 120v. This is very likely how you'll want to run it unless you are correctly wired for home back up or powering a 240v appliance..

In 240 mode neither leg can exceed the 3250w limit at any time or be above 2750 for more than an hour. In 120v they can get 5500-6500 and higher amps too. If switch is in 240 and your using a 120 outlet your only using one inverter basically.

I did a little bit of reading on some other forums and got an explanation of how it was a split system, but those threads were from several years ago and didn't go in to nearly as much detail as your info. Thanks for the better description

I also read how each breaker protects a different outlet, or a different hot leg on the 240 outlet.