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Old 08-17-2009, 07:26 AM   #1
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Inverter vs wall recepticles

Had the opportunity to do a little dry camping this weekend and found when running off the inverter not all my wall sockets worked. Some did, some didn't. Is that normal - the inverter sends power to some but not to all?
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Old 08-17-2009, 09:05 AM   #2
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dmason,

Normal.

dreamer.
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Old 08-17-2009, 10:18 AM   #3
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YEs, 100% normal

Suggestions:
1: Map which outlets work off the inverter. You might wish to mark them with a red or orange marker (Emergency power)

2: when hooked to shore power, either turn off ALL branch circuit breakers (Leave just the mains on) and one at a time turn on the branch circuits and see what works

Or one at a time turn them off and notice what does not work

MAP the results to a spreadsheet like this

Breaker number Devices or outlets

1 Bedroom wardrobe side wall
2 Beside the bed and fridge
3 Rear Air conditioner
4 Front air conditioner


And so on
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Old 08-17-2009, 02:19 PM   #4
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Thanks again!

It's true again . . . the longer you live the more you learn!
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Old 08-17-2009, 04:56 PM   #5
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My 2 cents.
This is not always normal. Most Winnies with "whole house inverters" have all receptacles hot when turned on.

TomE
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Old 08-17-2009, 05:45 PM   #6
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Quote:
Originally Posted by TomE View Post
My 2 cents.
This is not always normal. Most Winnies with "whole house inverters" have all receptacles hot when turned on.

TomE
yup so does my Damon
it even will run the fridge on a/c power if i don't switch it lp prior to dropping shore power,
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Old 08-17-2009, 06:16 PM   #7
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All my inverter outlets were marked by the factory. That includes all the interior, basement TV and the ice-maker outlets. The fridge will automatically shift over to propane if not on shore power or generator.
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Old 08-17-2009, 09:15 PM   #8
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I'm not sure there is any "normal". The engineers decided when they laid out the floor plan and the inverter wiring and probably chose what was convenient for them and the assembly line rather than for the owner.

That said, in a coach like your Scepter I would expect that all or nearly all the wall outlets would be on inverter circuits. Did you re-check after on shore power or generator? I'm thinking you may have tripped a GFCI and shut down some wall circuits altogether.
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Old 08-18-2009, 06:55 AM   #9
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RV Roamer,
Good point about the GFCI switch. Will check it out this weekend. Thanks.
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Old 08-18-2009, 08:07 AM   #10
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It can vary from coach to coach. "Usually" (in other words - not always ) the outlets are split on smaller inverters but not on larger inverters.

Our 2004 Allegro Bus came with a 2,000 watt inverter. A number of outlets were fed by the inverter but an equal number was not. The inverter was a Freedom 458 and had two 15 amp breakers on the inverter. One circuit went to the microwave/convection oven while the other fed the 4 - 5 receptacles that were labelled as "inverter" outlets. If every outlet were to be wired via the inverter you could easily overload the inverter's breaker and trip it if you plugged in a crock pot, toaster, coffeee pot, etc. This would happen whether running on battery/inverter power or even with shore power because the inverter operates in a pass-through mode and still uses those breakers. That's why they split them up.

Our 2007 Bus came with a 3000 watt inverter that fed a sub-panel. This gave me plenty of power and every single outlet was fed via the inverter with no worries about overloading the system.

I modified my '04 Bus and tied the two 15 amp breakers together and fed a new sub-panel. The 30 amps supplied was then divided amongst 4 output circuits, which handled every outlet in the coach. that system worked well because I had 30 amps to share amongst all of the circuits.

In a nutshell, if you don't have a sub-panel arrangement it's best to keep some outlets off of the inverter but if you do have one, you can feed them all via the inverter.

It all depends on how your coach is set up. There is no "standard".
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Old 08-18-2009, 04:45 PM   #11
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With it coming standard with a 2000 Watt Inverter & 4 6V house batteries.
You would think all outlets would be powered on it.

Are they all powered when running the generator?
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Old 08-19-2009, 07:13 AM   #12
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Any AC outlet should be powered by the generator. Both the generator and shore power feed the transfer switch, which then feeds the main breaker panel so either power source should feed the entire coach.

Having a 2000 watt inverter doesn't guarantee that all of the outlets can be wired. It all depends on how the inverter's output is wired. If it's a single 30 amp feed to a sub-panel it's no problem. But, if it's two 15 amp breakers directly on the inverter it would be a problem because one generally goes to the microwave and the other 15 amps goes to some outlets. Having every outlet on the coach tied to a single 15 amp circuit is not a good idea. The popular Heart/Xantrex Freedom 458 has the two breakers but the more recent RV2012 has the single wired 30 amp output so that generally determines which type of wiring system you'll have.
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Old 08-19-2009, 10:41 AM   #13
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Quote:
Originally Posted by Triker56 View Post
With it coming standard with a 2000 Watt Inverter & 4 6V house batteries.
You would think all outlets would be powered on it.

Are they all powered when running the generator?

You expect a 2,000 watt inverter to run everything a 5,5KW generator can run?

I don't.
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