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7.5KW is 25,500 BTU...:)

I made some assumptions based on the only drawing I have seen that the windings were in parallel, but the idea of them being in series is interesting and makes sense on a couple of levels. Regulate the field current to maintain the desired combined series winding 28V output. Tap the junction...

That is exactly what you should do, except you have to also change the alternator:) I plan on shifting to a straight 24V alt and equalizer if/when my 24/12 alt fails... not necessarilly because of the way the alt works, but because of the VERY high cost of the 24/12 neihoff’s compared to the...

Yep, 12V are more common and less expensive than 24’s, but at least it is better than it used to be 10-12 years ogo... Because of the way they designed the Neihoff alternators, I am really loath to add any additional 12V load, especially considering that is where most of it already is when...

One thing they are touting in their advertisements is the 15KBTU unit, and the other ”commercial” models is that they are built and tested to be more rugged(Shaker table testing). They also make two 12V models(4KBTU and 6.8KBTU) and they are marketing these three units toward the trucking...

You will also need an inverter large enough to deal with it’s startup load, but that shouldn’t be too bad. There was a guy on here a while back selling a rig with an older dometic on the roof powered by inverter.

Well you wouldn’t need the gen, the DC load for the dometic would be around 65A @24v, which your larger alt could support...

Yep, that is the alt EVERY LMTV should have:) 45A is not a problem for that alt... if you have the generation capacity to support it, for less cost and easier install, you could use a Dometic commercial unit(15,000 BTU) on the roof and add an inverter to power it. This would have the added...

“Power consumption 45 nominal amps @24 Volt DC” That is pretty much all your available 24V alternator output, and at 10,000 BTU output would be running 100% of the time to try and keep up with the heat load... You could do something like this, with greater output, without risking your...