| Re: [GMCnet] Can an ONAN put out 220v? [message #359743] |
Sat, 24 October 2020 20:58  |
James Hupy
Messages: 6806
Registered: May 2010
Karma:
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Senior Member |
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Costco has a sale on 9kw Firman generators right now. Don't remember the
price, offhand. It has 110/220. I bought one a couple of years ago. It is
Dual Fuel Propane/ Gasoline. Electric start. Has tires and folding handle.
Good unit.
Jim Hupy
Salem, Oregon
On Sat, Oct 24, 2020, 6:40 PM Ken Henderson via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Karen,
>
> The original Onans in the GMC's are almost unique in that they are 110vac
> ONLY! Even the cheapest Lowes/HomeDepot sold units today can run either
> 110 or 220 vac -- but NOT our Onans. Too bad. It is possible to use a
> 110:220 transformer. Determine the load you need to carry, in Watts and
> Google "110:220 transformer wxyz Watts". For example "110:220 transformer
> 1000 Watts" yields these options:
>
> https://www.amazon.com/ELC-T-1000-1000-Watt-Converter-Transformer/dp/B00FHIF8KC
>
> But remember, your 6kW generator can probably only carry maybe 5kW through
> a transformer.
>
> Ken H.
>
>
> On Sat, Oct 24, 2020 at 9:20 PM KB via Gmclist
> wrote:
>
>> Hey all, we've been using our GMC Onan to power our house on the
>> (increasingly frequent) occasions when
>> the power company turns off our power to supposedly prevent fires during
>> windy dry conditions.
>> The Onan has been doing a great job of running the fridge, freezer, etc,
>> but we can't run things
>> like a 220volt pressure system, water heater, or well pump with it.
>> I'm guessing that's because both hot legs of output are running in the
>> same phase.
>>
>> Does this make sense? Is there a way to output 220 volt power with our
>> Onans, or is it 110 only?
>>
>> thanks much,
>> Karen
>> 1975 26'
>>
>>
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