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Old 08-07-2015, 10:46 PM   #1
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Adding 12V Fuses/Circuits to Intellitec Controller

Good Evening All,

We have a 2011 Fleetwood Bounder Classic 34B with an Intellitec EMS system that appears to control the 12V system and has a Fuse Panel with 12 preinstalled fuses that seem to already be designated in the Coach.

I would like to add Tank Heaters to our rig, but will need 5 additional 15 amp dedicated circuits to run all of the heaters. What would be the best way to incorporate this into the electrical system? Should I located the converter/charger and just install inline fuses or is there a way that I can expand the Intellitec system to add another Fuse Panel?

Thanks.
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Old 08-08-2015, 11:16 AM   #2
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The EMS controls 120v circuits, not 12v. However, the associated load center probably has both 120v breakers and 12v fuses.

Are those 12v or 120v circuits you want to add? And where is all that power going to come from? 5 x 15A = 75A of additional power that has to come from somewhere. Even if 12v circuits, your converter/charger is going to have to produce it, or the batteries if not on shore or generator power.
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Old 08-09-2015, 09:04 AM   #3
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Quote:
Originally Posted by Gary RVRoamer View Post
The EMS controls 120v circuits, not 12v. However, the associated load center probably has both 120v breakers and 12v fuses.

Are those 12v or 120v circuits you want to add? And where is all that power going to come from? 5 x 15A = 75A of additional power that has to come from somewhere. Even if 12v circuits, your converter/charger is going to have to produce it, or the batteries if not on shore or generator power.
I started digging around where all of the electrical components are and I can't find another Distribution center other than the 12V fuse panel that is associated with the Intellitec unit and it appears that all 12V components run through that: (Thermostat (5 Amp), General Purpose Lav (15 Amp) Galley (20A), Bedroom (20A), EMS 12V Pwr (5A), Accessory Pwr (15A), Water Pump (10A), General Purpose S/O (20A), Appliances (20A), Lounge (20A), Front O'HD Pwr (15A), TV (10A).

We have a WFCO 65 Amp Power Converter.

I guess I'm stuck on how anyone would install tank heaters. I was going to keep each circuit at no more than 15 amps. In reality I would be using Ultra-Heat tank heaters and should be using exactly no more than 45 amps if all of the heaters were running concurrently.

Am I going about this all wrong? Surely I should be able to accommodate these 12V tank heaters, I guess I just need someone who has been there and done that or has more experience than I to get pointed in the right direction.

Thanks!
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