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Onan 7.5DKDFJ Low A/C Output


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  #21  
Old 04-13-2018, 12:13:12 PM
patsmobile1 patsmobile1 is offline
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Default Re: Onan 7.5DKDFJ Low A/C Output

Wish I understood this clearer, the best I can figure on my RV is it has two separate 120 wires coming into the RV, feeding the breaker panel, and both roof air a/c's, but no 240 anywhere. T1-T4 were the only two hot from the gen head to the original transformer, as bad as I am with memory, and electric I did not disconnect anything that absolutely did not have to be. My theory is the T1 - T4 put 220, and the transformer put out 120? Only thing that makes sense to me, the 460 is sensing 220 plus, with the low voltage jumper on 3-4 it is cutting the 120 in half, instead of 220 in half? I dunno?

---------- Post added at 12:10:42 PM ---------- Previous post was at 12:07:16 PM ----------

It actually has two 3.5 amp 120 main breakers at the generator to rv box.

---------- Post added at 12:13:12 PM ---------- Previous post was at 12:10:42 PM ----------

oops, 35amp, 70 amps total, but no 240.
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  #22  
Old 04-13-2018, 12:18:48 PM
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BigBlockChev BigBlockChev is offline
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Default Re: Onan 7.5DKDFJ Low A/C Output

If you can post a pic of the plug that you use to plug in at the RV park shore power that would help. A 4 pin 50A plug would indicate a 240v input. I think you are good with what you have posted. Cheers Dan
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  #23  
Old 04-13-2018, 12:44:43 PM
patsmobile1 patsmobile1 is offline
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Default Re: Onan 7.5DKDFJ Low A/C Output

Your right, it uses the standard RV 50 amp, hell I put one in the side yard where we park to keep it plugged in. So does the rv then split the 240?

---------- Post added at 12:44:43 PM ---------- Previous post was at 12:36:25 PM ----------

Had to do a ton of work to the rv when I first got it, transfer switch was one thing, it brings two 120 legs from shore, and two from gen. I remember that much, so as long as I have both at 120 hopefully I'm good, going out to mount the 460, finalize wiring, and bolt the gen. back up into the rv, hope it's right, pain to get anywhere near it once back in. Thank you again Dan!! Used to prowl around your end of North America, wife and I drove truck a lifetime ago, for an Ontario Company for a few yrs, miss the travel and getting paid for it, rv cost's!!
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Old 04-13-2018, 06:01:23 PM
patsmobile1 patsmobile1 is offline
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Default Re: Onan 7.5DKDFJ Low A/C Output

Just an update Dan, and you other good folks, wife and I put the unit back into the rv, other than having to fix a cracked weld in the mounting frame, it is running like new, 4 hours with both roof a/c wide open reading 122 volts! Thanks again guys, awesome page we have here. Leaving Sunday for the Jupiter, Fl area, State park for the week.
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