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Old 02-24-2018, 11:14 AM   #1
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Question Magnum inverter

Would like to install Magnum 2000w inverter/charger in place of 1000w inverter that came with 2016 sunova 33c. Will it work or do I have to disable the converter charge system.
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Old 02-24-2018, 11:18 AM   #2
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Originally Posted by BMcD View Post
Would like to install Magnum 2000w inverter/charger in place of 1000w inverter that came with 2016 sunova 33c. Will it work or do I have to disable the converter charge system.
Depending on what battery cables you presently have from your battery to the inverter you may need to upgrade these to a larger size. If installing an inverter charger then I would disable and remove the present converter charger and use the 3 stage charger that is built into the Magnum inverter.
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Old 02-24-2018, 12:17 PM   #3
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Hi ! Welcome to IRV2! We're sure glad you joined the gang!

I can't answer that question but wanted to say hello! Keep her between the ditches!

Good luck, happy trails, and God bless!
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Old 02-25-2018, 09:18 AM   #4
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You don't have to disable the existing converter/charger, but the Magnum is probably a superior design and it would be better to utilize that rather than whatever you now have. But if you don't want to use the new unit as the converter/charger, why but that type of unit? Just get a 2000W plain inverter instead. Plenty of good ones available.
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Old 02-25-2018, 09:30 AM   #5
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You don't have to disable the existing converter/charger, but the Magnum is probably a superior design and it would be better to utilize that rather than whatever you now have. But if you don't want to use the new unit as the converter/charger, why but that type of unit? Just get a 2000W plain inverter instead. Plenty of good ones available.
Agree. Use all of the magnum as designed.
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Old 02-25-2018, 10:23 AM   #6
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Quote:
You don't have to disable the existing converter/charger, but the Magnum is probably a superior design and it would be better to utilize that rather than whatever you now have. But if you don't want to use the new unit as the converter/charger, why buy that type of unit? Just get a 2000W plain inverter instead. Plenty of good ones available.
Continuing my previous post...

The likely complication in using the Magnum as the converter/charger is that the 12v power distribution panel is probably integrated with the stock converter. Ideally you would disconnect the converter /charger part and wire the Magum's 12v power in its place. Not terribly difficult, but may need some research and you would have to get comfortable with the idea of modding that unit. However, it is not strictly necessary to disable the old charger module - you can let the Magnum run in parallel and do its thing. The extra value of the Magnum's three stage charging is not realized if you do that, but the chargers still work.
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Old 02-26-2018, 07:54 AM   #7
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Thanks Don, I will use the magnum charge system-can't wait to get on the road next month-too much time on my hands. BMcD
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Old 02-26-2018, 08:01 AM   #8
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Thanks Vince, having a motorhome is like having a jeep-always something ya can add!
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Old 02-26-2018, 08:54 AM   #9
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Thanks Gary, friend gave me the Magnum when he got a new coach with bigger inverter. I don't see a reason to remove converter-it is on its' own 15 amp breaker so will shut that off. The dc wiring diagram shows the +12vdc goes to an isolated stud that connects it to the coach and chassis wire asm. I could disconnect the converter wire here but don't think it matters since converter ac power is off. BMcD
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