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Old 02-22-2007, 10:18 AM   #1
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1974 31' Sovereign
Alpine , Texas
Join Date: Jun 2006
Posts: 19
where is AC-to-DC switch on 74 Sovereign?

Hello, anyone know where the AC-to-DC switch is on a 31-ft '74 Sovereign? Thanks,

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Old 02-22-2007, 11:14 AM   #2
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1966 26' Overlander
Woodstock , Georgia
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if you have a Univolt ( the "buzzy" sounding converter). the only switch would be on and off. AC works when shore power is plugged in, DC works thru the dc outlets only, and lights, etc that use 12v. when not plugged in your battery wil supply the 12v.

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Old 02-22-2007, 11:22 AM   #3
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2006 25' Safari FB SE
St. Cloud , Minnesota
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Hi Jesse -- I don't believe you will find any switch as such. I might not have it all in this summary, but 110v AC only goes to your Univolt, air conditioner, refrigerator and your 110v wall outlets. An original Dometic type fridge is either two-way (110v AC or LP) or the less common three-way (110v AC, 12v DC, or LP). Is there a master switch of some sort by the door?

Everything else you see inside/outside the trailer runs on 12v -- it will draw from the Univolt if you're plugged in or else it will draw off the battery. All the lighting is 12v. The furnace, water heater and water pump run off of 12v, though the fuel for the first two is LP. The two systems are isolated from each other with the Univolt being the converter from 110v to 12v; the Univolt also supplies 12v to recharge the battery (in the best conditions -- old Univolts can cook a battery dry if you stay plugged in).

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