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Old 09-26-2018, 08:26 AM   #1
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Please Review Wiring Diagram

I appreciate any help looking at this and letting me know what i need to add, remove, or just won't work. Specifically not sure where things like shunts or switches go.
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Old 09-26-2018, 02:16 PM   #2
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EDITED BECAUSE I APPARENTLY CANNOT READ A SCHEMATIC TODAY

I totally misread the series/parallel bits and got 'em backwards. Looks like you've got things in the battery bank tied up right.

whoops!
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Old 09-26-2018, 04:54 PM   #3
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Why two separate solar arrays with two MPPT chargers?
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Old 09-26-2018, 06:35 PM   #4
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I was told over on spt forum that it was cheaper to do it that way.
However, I called renogy today and they said that their controllers couldn't work on the same battery bank, could have sworn i saw somebody else doing that
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Old 09-27-2018, 08:47 AM   #5
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The charge controllers (CC) have to be fairly intelligent (not cheap) to be networked (multiple working together to charge a single battery bank). Since you have a fairly small array (1200 watts), a single CC will be sufficient.

A good 60 amp CC will output up to about 1680 watts (60amps @28 VDC) into your battery bank. This gives you some room for expansion.

If you mount your panels flat, you'll probably never see more than about 80% of rated output (960 watts) so a 40 amp MPPT charge controller will suffice.
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Old 09-27-2018, 09:05 AM   #6
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Can it hurt a charge controller to send it more watts the bit supports?
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Old 09-27-2018, 09:15 AM   #7
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I have been told (by Morningstar) that it will not hurt the TS-MPPT line of CC's - within reason. I have heard similar about the other name brands but never actually spoke to them about it. The CC basically clips off the excess power (more complicated than that but that's what it looks like to the user).
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Old 09-29-2018, 11:13 AM   #8
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Are you planning on grounding to your frame/chassis?
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Old 09-29-2018, 02:11 PM   #9
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I don't know really very new to this. Right now trying to determine if I should scale back the solar and go with an isolater to the alternator . Also considering not doing this and going 48v
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Old 09-30-2018, 06:30 AM   #10
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Quote:
Originally Posted by MambaJack View Post
I don't know really very new to this. Right now trying to determine if I should scale back the solar and go with an isolater to the alternator . Also considering not doing this and going 48v
It's all about your "mission" - how you plan to use your setup. There is no right or wrong just the reality of your style of living. Without knowing any of that it is difficult to comment with anything meaningful. That said, a 48VDC battery bank may not be ideal if you do not have a specific reason(s) for it.
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