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Center Console Wiring Opinions

Old 02-22-2008, 04:55 PM
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Default Center Console Wiring Opinions

I have been thinking and planning this project all winter. I want to relocate my batteries from the transom to my center console. It is a 22' Sea Pro with a single Yamaha 225 4 stroke. I want to get rid of the perko switch, go with a BEP cluster, and add a third battery for house duty. The wiring diagram I have come up with is attached, please comment on this set up, and would you do it any differently?

Old 02-22-2008, 05:11 PM
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Default Re: Center Console Wiring Opinions

Where do the bilge pumps get wired in????
Old 02-22-2008, 05:23 PM
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Default Re: Center Console Wiring Opinions

The bilge pump, livewell pump, washdown pump, horn, nav lights, courtesy lights, and spreader lights are wired through the factory guage panel. The boat is not kept in the water, but I may wire it direct anyway while I am knee deep in wiring.
Old 02-22-2008, 08:06 PM
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Default Re: Center Console Wiring Opinions

Three questions:
1. Do you think that 2 AWG to & from the engine will be heavy enough given the extra length of cable run? Not knowing the length involved but working on the fact that 2 AWG is the standard supplied wire, I would be inclined to go heavier.
2. Will there be an isolation switch between House #2 & the (+) buss bar?
3. Do you think that 10 AWG will be sufficient from the (+) buss bar onwards? A lot of electronics are very sensitive to voltage fluctuations.
I have just done a full install on a new boat & decided to go heavier than the wiring tables suggested.
Looks like a very neat & well thought out set up.
Old 02-22-2008, 09:05 PM
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Default Re: Center Console Wiring Opinions

get the net, I have a Sea Pro 220 and a similar project in the works, except for all those amps (if you're outa Southport I guess I'll hear you before I see you ). The positive bus should be fed from the 716 not direct from the house battery. My plan is to run 4 or 6 ga to the fuse block and run the dash panel switches and the e-box fuse block off of it as branch circuits.

Ray
Old 02-23-2008, 03:37 AM
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Default Re: Center Console Wiring Opinions

My only comment is that in charging two batteries in parallel, if one of the house batteries loses a cell, the other battery will be effected. You could use the Yammi aux lead to charge the start battery independently and use the combiner on the other two..
Old 02-23-2008, 05:58 AM
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Default Re: Center Console Wiring Opinions

Yamaha-aux charging lead, dam that went right over my head. Why even use the VSR cluster? You will need a switch between the house bank and the positive bus though.

Ray
Old 02-23-2008, 06:05 AM
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Default Re: Center Console Wiring Opinions

Great diagram & comments so far

I would go with Blue Seas Circuit breakers for protecting the wires from the batts to the bus & bus to distribution panels

A few suggestions:

Go with 8AWG for the wires feeding the 3 panels

Wire the bilge pump(s) float switch(es) directly to the house bank

Make use of the Yam Aux Charging circuit to charge the house bank. Doing this eliminates the need for the combiner in the BEP Cluster. You still need the switches, or you could use a BSS 5511e switch

Use the BSS plug-in fuse panels (not glass fuses) and eliminate all glass fuses in the accessory circuits



Old 02-23-2008, 06:23 AM
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Default Re: Center Console Wiring Opinions

I am liking your comments so far, thanks. I hould have mentioned that all fuses will be push in, blade style fuses.

As for the 2 guage wire, I did not look up how much the starter draws, but I stuck my head in a 26' Sailfish to see what they used and it looked about right. According to the lenth it travels it is definately good for 100amps with 3% loss, and I figured the starter is not a continous draw. I will look more into this.

I am definately going to upgrade to 8 guage wire for the panels, I don't know why I didn't think of that, the only thing is I dont know if I have the space for it in my t-top tubing, but will try.

Could someone comment more on the Yamaha auxilary charging circuit. Is there another positive lead coming from the motor that I missed?
Old 02-23-2008, 06:37 AM
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Default Re: Center Console Wiring Opinions

Check with Andy at SIM abouth the Aux Charging Lead. I believe you have to buy the harness to attach to the engine to make use of this feature

Old 02-23-2008, 06:55 AM
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Default Re: Center Console Wiring Opinions

Here's my install very similiar ... have two batteries and used a BEP 716. I might even think of dropping down to 6 awg wire from the house battery to the fuse buses.









Old 02-23-2008, 06:56 AM
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Default Re: Center Console Wiring Opinions

A starter will draw upwards of 300 amps. The BEP 715 has an aux charging circuit.
Old 02-23-2008, 07:22 AM
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Default Re: Center Console Wiring Opinions

i am reaing this on my blackberry so i will examine the pics when i get home, thanks for posting. i will review the drawing so that the main positive bus comes off the 716, dont know how i goofed that.

i will read in my shop manual about this circuit, and probaly up the wiring from 2 to 1/0
Old 02-23-2008, 08:08 AM
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Default Re: Center Console Wiring Opinions

get the net - 2/23/2008 10:22 AM
and probaly up the wiring from 2 to 1/0
FWIW, I'm going to run 2 ga from the the battery to the transom were it will connect to the original 4 ga lead from the motor (Verado) via powerpost. Everyone I've talked with says its plenty heavy enough and the motor installation manual ok's 2 ga for this length run (of course it means all the way to the motor). But haven't heard of problems with other folks doing it this way.

Ray

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