Mainship 390 AC operation

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windintheface

Newbie
Joined
Apr 5, 2019
Messages
2
Location
USA
Will the AC system operate while the engine is running, or is it necessary to also run the generator?
 
Have to run the generator, the Air Conditioners are AC only.
 
I figured that was the case. I wonder if there is a modification one could make that would facilitate that? I'm assuming that the engine alternator charges all the batteries. (?)
 
The alternator can only produce DC power. Unless you have a DC A/C? I don't believe they make one?
 
I figured that was the case. I wonder if there is a modification one could make that would facilitate that? I'm assuming that the engine alternator charges all the batteries. (?)

Just run the generator, it won’t hurt it to run underway and they don’t use much fuel. Any other option will cost you $$$ and more things to maintain. We have run ours on occasion underway when it’s been really hot or cold.
 
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