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09-28-2012, 05:05 AM
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#1
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Montana Master
Join Date: Aug 2010
Location: Wheatland
Posts: 675
M.O.C. #10623
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12 volt
We are in the beginning stages of installing solar to supplement and to boondock occasionally. That being said, I was checking my 12 volt fuse panel to see what ran what and when I pulled a certain fuse my main ducted 110v air conditioner stopped. I put the fuse back in and the air started back up. I'm confused as all get out. What part of my central air would be running off 12 volt? I'm assuming it has something to do with the thermostat, but have no idea. If that is the case, is there any way of getting around this as I'm going to need all the voltage I can get to the inverter and 12 volt system?
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09-28-2012, 06:12 AM
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#2
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Montana Master
Join Date: Apr 2009
Location: Murrieta
Posts: 5,816
M.O.C. #9257
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You are right that it's not the A/C running on 12v and the thermostat must run on 12v since it also controls fans and heat and this is probably why the A/C quit. I believe the fuse you found was for the thermostat, not the A/C.
You shouldn't have the A/C turned on when boondocking and the thermostat itself uses little 12v power and when boondocking while is known that it's difficult to get an A/C to work you'll need the thermostat for the lower powered heater (running on propane for heat) I don't think you have to worry about needing too much power being used by the thermostat.
If you don't even want to use the 12v thermostat for turning on the furnace, then you can leave it turned off, too and preserve even more power from the solar panels (actually the reserve from the batteries that are being recharged by the solar panels).
Just remember that the solar panels only work when there's lots of sun light. So if the weather is inclement, very cloudy or you are parked under trees, you might want to have a small generator as a backup, and hopefully others way smarter than me can tell you how to do this.
P.S. I like your sentiments. I will always support the troops. Those that don't should go live somewhere else, please! We won't mind, really! It's those same troops that preserve your right to say "I don't support the troops". How ironic.
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09-28-2012, 10:01 AM
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#3
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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X2 on the thermostat. That 12 volt is also required for the refrigerator, hot water heater, and depending on model, the stove igniters as well.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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09-28-2012, 10:13 AM
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#4
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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Quote:
quote:Originally posted by 1retired06
X2 on the thermostat. That 12 volt is also required for the refrigerator, hot water heater, and depending on model, the stove igniters as well.
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X 3
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09-28-2012, 11:30 AM
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#5
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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X4. 12 volt to control the propane functions except most stoves.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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09-28-2012, 01:33 PM
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#6
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Montana Fan
Join Date: Oct 2006
Location: East Moriches
Posts: 418
M.O.C. #6436
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Also the 12 volt lighting and exhaust fans. You must consider all of of this when you size the battery bank for boon docking. Boon docking is all we do for now.
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09-28-2012, 01:45 PM
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#7
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Montana Master
Join Date: Aug 2010
Location: Wheatland
Posts: 675
M.O.C. #10623
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I figured it was the thermostat. Guess I need to figure in the igniters also, forgot about them. I'm getting a splitting headache trying to figure all this out, but by golly, I'm determined to tell these RV Parks down here in So Texas to stick their 18 to 21 cents per Killowatt, or at least some of it.
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