Electric and Water Systems
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5,752 Posts
Just a few short years ago people here thought I was crazy for spending a lot of money on my electrical system.
Just a big Magnum inverter with many of the options, All total around $4,000 dollars.
I have to wonder about those small cables on your lithium batteries, My Magnum MS2012 inverter (225 amps) called for 2/0 to 4/0 cables depending on the distance from the batteries , I chose 3/0.
Just a big Magnum inverter with many of the options, All total around $4,000 dollars.
I have to wonder about those small cables on your lithium batteries, My Magnum MS2012 inverter (225 amps) called for 2/0 to 4/0 cables depending on the distance from the batteries , I chose 3/0.
How many gallons of water does the wheel well tanks hold?
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2,069 Posts
Perhaps reconsider this decision again.
I like it! I think I will save your diagram for future reference. One thing you might consider is going with 8 gauge wire rather than 10. If you ever want to add more solar capacity or need to run higher amperage through the system, wiring 8 gage doesn't cost that much more, and you will be happy that you went with 8 gauge rather than 10, especially if you have runs 15 feet or greater.
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720 Posts
Is the 2000w inverter solely for charging through the inverter/charger? You can probably solve that w/ a DC/DC charger, and skip the double conversion and cost.
What is the black device right after the shore breakers? Is that an auto transfer switch? I'm confused, doesn't the Victron inverter charger have that built in?
Ah ok I get what you are trying to do after reading TransitFocus' comment. I agree with him, just do a DC/DC instead
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1,570 Posts
I think you may want to look at you filter circuit. As is, it will filter water from the tanks when gravity fed but backwash the filtrate into the tanks when City fed, if you ever forget to close the valve. The other concern I would have is that I wouldn't want my system pressurized when on City feed.
With all that tank capacity, you could run everything off the tanks via the filters. You only need one feed, which can be vis gravity or City, via a hose.
We do this on ours. One feed port that either gets a hose or a funnel, everything then runs from the tanks. The tank feed is filtered than pumped on demand to the rest of the system. The pump is turned off when we are not using the water.
Also, you may want to be careful with vents, on my first version, the vent overflowed under heavy braking or steep downhills and we could loose 1-3 gallons an hour touring off road. Some of the fill ports are self venting with one way valves. So now we have a "filling vent" which is only open when we fill the tanks and a "use vent" which allows air in as the tanks deplete but doesn't allow water out when its sloshing around.
Also on your water system, not sure what pump you are using but some of the shurflos don't require an accumulator fyi
20 Gal each for a total of 40 Gal
Thanks! Yes, I can go bigger.
Thanks! I ordered the short Transit and since I plan to have Maaxair and AC I will not have space for more than 2 panels. This is also impacting the decision to stay with 12V system.
Awesome! Thanks!
Ok, can you recommend a pump that you like and that does not need accumulator?
I did not find a good DC to DC solution that I can connect directly to the CCP2. Does anyone have a good solution that will work nicely with the BB batteries?
The ones I looked at all had "small letters disclosures" that gave me the impression that they will not work optimally.
2019 T-350 HR 148 Extended 3.5 EB, Full time 2 person build, Chinese Heater, Victron, 525 AH Lithium
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173 Posts
I just built a very similar design. Mine includes the cerbo and 2 DC to DC chargers (one going each direction). The house trickles the van and helps with usage surges that exceed vehicle battery (if I happen to need vehicle lights or something or to handle the pesky ridiculous parasitic drains) and the van charges the house when driving. Both are isolated (very important IMHO) and I have a relay that flips the one in use and uses the same Homerun cable pair between the front seat vehicle battery and the rear lithium charger bank. I’m very pleased with the multi, very pleased with the smart shunt, but disappointed that there isn’t a way to connect the victron dc to dc chargers to cerbo. I’m hoping this becomes possible in the future via Bluetooth.
As an anecdote I purchased my gear from different victron dealers and had an exceptionally poor with inverter supply. All the others with great. They sent me a used, damaged open part, and want to charge me a restocking fee to send it back. They won’t respond to my emails despite me being very patient and pleasant. I’ve politely asked to have a manager call me or email and they simply just ignore me. Anyway, good prices, good shipping but risky. Friendly advice. Great design! I love your plumbing design! I’m going to try and track down a few of your parts and reuse some of those great ideas.
As an anecdote I purchased my gear from different victron dealers and had an exceptionally poor with inverter supply. All the others with great. They sent me a used, damaged open part, and want to charge me a restocking fee to send it back. They won’t respond to my emails despite me being very patient and pleasant. I’ve politely asked to have a manager call me or email and they simply just ignore me. Anyway, good prices, good shipping but risky. Friendly advice. Great design! I love your plumbing design! I’m going to try and track down a few of your parts and reuse some of those great ideas.
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5,752 Posts
Two or three years ago you could not buy Victron anywhere in North America, It was strictly a European product. And that is what you are dealing with now while they wait become established.
It was the same for Sterling Power five years ago, Today they have excellent service.
It was the same for Sterling Power five years ago, Today they have excellent service.
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