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Old 11-06-2014, 06:50 PM   #1
pedalingnowhere
 
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Default I made this camper van electrical diagram, but I desperately need help!

OK, I am new here. Just got a 2012 144" and we are on a bit of a time crunch with our conversion. I have spent endless days here trying to school myself in electric systems, but I'm still clueless. Here is the diagram I drew up, but I need to make sure nothing is off or missing. Here are a few questions relative questions I have:



1. Can I put one battery under driver's seat and one under passenger and link them together?
2. Are all of the positive runs with 4 gauge wire?
3. Should there be an additional switch to turn the whole system off when the van is parked for an extended period of time?
4. Am I missing any fuzes? A support guy at Blue Sea said I don't need one with the ML 500, but most other systems I have studied have a fuze between the starter battery and the ACR.
5. Is this way off??

Thanks in advance for any help!!!

Last edited by pedalingnowhere; 11-06-2014 at 06:54 PM.
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Old 11-06-2014, 09:50 PM   #2
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Default Re: I made this camper van electrical diagram, but I desperately need help!

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Originally Posted by pedalingnowhere View Post
OK, I am new here. Just got a 2012 144" and we are on a bit of a time crunch with our conversion. I have spent endless days here trying to school myself in electric systems, but I'm still clueless. Here is the diagram I drew up, but I need to make sure nothing is off or missing. Here are a few questions relative questions I have:



1. Can I put one battery under driver's seat and one under passenger and link them together?
Thanks in advance for any help!!!
Yes for passenger seat, no for the driver seat. You could consider one battery Ė see Dave Orton DIY or one under the hood and one in the passenger seat base
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2. Are all of the positive runs with 4 gauge wire?
Thanks in advance for any help!!!
No, 1000W inverter (85 A) requires #2 or #1 or even 1/0 for long distance

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3. Should there be an additional switch to turn the whole system off when the van is parked for an extended period of time?
It is a common practice
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4. Am I missing any fuzes? A support guy at Blue Sea said I don't need one with the ML 500, but most other systems I have studied have a fuze between the starter battery and the ACR.
5. Is this way off??
You have no fuses nor circuit breakers and you certainly need them. You have no AC ground connection. I suggest to identify current flow on each cable and size wires and fuses or CBs accordingly.

Electrical installations are often sources of fires by undersized wires, bad connections, lack of fuses in right places. If safety is your concern perhaps hiring an expert would help.

George.
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Old 11-06-2014, 09:58 PM   #3
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Default Re: I made this camper van electrical diagram, but I desperately need help!

Welcome. I don't think you are going to fit a battery under the drivers seat. Xantrex I think calls for a fuse close to the battery.
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Old 11-07-2014, 02:01 AM   #4
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Default Re: I made this camper van electrical diagram, but I desperately need help!

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Yes for passenger seat, no for the driver seat. You could consider one battery – see Dave Orton DIY or one under the hood and one in the passenger seat base

No, 1000W inverter (85 A) requires #2 or #1 or even 1/0 for long distance


It is a common practice

You have no fuses nor circuit breakers and you certainly need them. You have no AC ground connection. I suggest to identify current flow on each cable and size wires and fuses or CBs accordingly.

Electrical installations are often sources of fires by undersized wires, bad connections, lack of fuses in right places. If safety is your concern perhaps hiring an expert would help.

George.
Another cause of fires... people who don't know what they are doing. I think an expert is definitely in order... I am even more confused now. Anybody know someone who can do something like this in North carolina? Or better yet, is there anybody here who would want to make a few bucks to design the system with specifics. I am pretty handy and I think I could install it, I am just a dummy when it comes to the engineering side of it.

Last edited by pedalingnowhere; 11-07-2014 at 02:42 AM.
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Old 11-07-2014, 03:06 AM   #5
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Default Re: I made this camper van electrical diagram, but I desperately need help!

I would suggest to define your objectives for electrical system first, for example:

- 2 days on batteries only
- Solar charge capable to replace daily consumption in one day
- DC appliances and gadgets
- AC appliances and gadgets
- Will you need shore power?
- Why 1000W inverter? If inverter is only for PC or TV a 300W unit is much simpler and less expensive.

Even if you want to hire someone you still need your objectives well defined. If your system is simple enough with help of this forum you can do it yourself.

George.
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Old 11-07-2014, 03:49 AM   #6
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Default Re: I made this camper van electrical diagram, but I desperately need help!

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Originally Posted by GeorgeRa View Post
I would suggest to define your objectives for electrical system first, for example:

- 2 days on batteries only
- Solar charge capable to replace daily consumption in one day
- DC appliances and gadgets
- AC appliances and gadgets
- Will you need shore power?
- Why 1000W inverter? If inverter is only for PC or TV a 300W unit is much simpler and less expensive.

Even if you want to hire someone you still need your objectives well defined. If your system is simple enough with help of this forum you can do it yourself.

George.
Thanks George. I kind of did that in my head and have based the batteries and solar panel size on comparing it to other folks' uses and systems. I don't think we will need shore power although I would like to have an option to add it if necessary, unless this is a simple task. It is hard to say, but I think 2 or 3 days on battery, max. However, I think you are right about the inverter. Here is how it breaks down:

DC
- Vent fan (maxxifan)
- LED lights (probably 6 dome lights, maybe a couple more)
- USB charging (iPad, phone)
- Fridge (small 37q ARB)
- Espar D2 heater (eventually)

AC
- Charging a laptop quite a bit (I am a graphic designer/photographer and use it a lot)
- Fan at night more than likely (may be able to get a DC fan)
- Charging camera batteries (once per week maybe)
- Computer monitor and connected hard drives, etc (maybe 1 or 2 hours per day on average)
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Old 11-07-2014, 05:29 AM   #7
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Default Re: I made this camper van electrical diagram, but I desperately need help!

Good list, it is good to document it on paper.

DC
- Vent fan (maxxifan)
0.2-4A, 18 AWG wire, 10A fuse.
- LED lights (probably 6 dome lights, maybe a couple more) I have total of 10 lamps taking 3.6A Ė too bright emphasizing wrinkles, 2A should be OK, 20 AWG, 5A fuse.
- USB charging (iPad, phone) 2 USBs, 1A, 20 AWG wires, 3A fuse https://www.bluesea.com/products/101...Charger_Socket
- Fridge (small 37q ARB), running current 2.5A, 14 AWG (due to starting current) for 12VDC, fuse 10A
- Espar D2 heater (eventually) - running about 2-4A more with glow plugs on, 10AWG, 15A fuse.

AC
- Charging a laptop quite a bit (I am a graphic designer/photographer and use it a lot)
120W
- Fan at night more than likely (may be able to get a DC fan) - what is wrong with Maxxfun and appropriate opening to get focused cooling air in?
- Charging camera batteries (once per week maybe) 25W
- Computer monitor and connected hard drives, etc (maybe 1 or 2 hours per day on average) 100W
***************

I donít think you need 1000W inverter, would suggest Mornigstar 300W which has a very low idle current. Later tomorrow I can help you sizing batteries and appropriate charger unless someone chimes in.

If you plan to camp with shore power available I would suggest incorporate it with the design.
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Old 11-07-2014, 01:06 PM   #8
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Default Re: I made this camper van electrical diagram, but I desperately need help!

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Anybody know someone who can do something like this in North Carolina?
Robert Morehead Design just south of Asheville

http://www.moreheaddesignlab.com/
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Old 11-07-2014, 01:18 PM   #9
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Default Re: I made this camper van electrical diagram, but I desperately need help!

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Robert Morehead Design just south of Asheville

http://www.moreheaddesignlab.com/
Thanks Tgregg. Unfortunately, that's about 6 hours away (I am in the far east part of the state... but thanks for the suggestion...
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Old 11-07-2014, 04:40 PM   #10
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Default Re: I made this camper van electrical diagram, but I desperately need help!

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Originally Posted by GeorgeRa View Post
Good list, it is good to document it on paper.

I donít think you need 1000W inverter, would suggest Mornigstar 300W which has a very low idle current. Later tomorrow I can help you sizing batteries and appropriate charger unless someone chimes in.

If you plan to camp with shore power available I would suggest incorporate it with the design.
Thanks GeorgeRa. I also sourced a 600w inverter (incase we were ever to use a low watt toaster or something). Also, here is an updated drawing, but I am still clueless. I attached a PDF below as well...



electric-diagram.pdf
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