I want to be able to charge from 240 generator but have two multis in parallel for 4000k output. if in charger only mode will the problem of the parallel output be removed.
asked
Can 2 multiplus 2k be in parallel and accept 240 if in charger only mode?
You did not say what voltage your Multiplus operate at. If they are the 120 volt versions then no you can not connect 240 volts to them regardless of mode.
Two 120 volt Multis in parallel would need 120 volts. You could step down the generator using a transformer.
Two 120 volt Multis in split-phase could accept 240 volts again by using a transformer to create two legs with a neutral from the center tap of the transformer. The legs would be 180 degrees out of phase. But you'd need your loads to be split phase also.
Switching between parallel and split phase requires reprogramming the Multis as well as rewiring all the AC inputs and outputs.
Thank you Kevin. The generator has two 120 hot legs, one to each multiplus which are 120 volt. I believe they would be fine if programed for series but I would prefer to have access to 4000 watts. I believe I also could run them both as stand alone. But what I want is that 4000 watt capability mostly so neither 2000 watt unit has to handle an 1800 load. So my original ask is whether while in parallel with units set to charger only, if the output side where the two hots are united will not cause an out of phase shutdown of the charging cycle.
Even in charger only mode, the AC output is active. Plus, in parallel mode all wiring has to be identical length for proper load sharing. If you separated the AC input wiring and fed a split phase source from your generator, the input would most likely be rejected, or even worse the out of phase hot legs would be connected together.
Your best approach would be to transform the generator output to 120 volts and feed that to the paralleled Multis
