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Post by bsafreed on Feb 7, 2013 3:33:19 GMT
I'm searching for information on the hot water tank, it's element, and the electrical circuit on the swithboard. From what I can tell the heater circuit is 220V.
I'd like to assume Jeanneau used similar tanks and circuits on most of their fleet manufactured in the mid 90's.
My goal is to shunt the excess power from either wind and solar to heat the tank.
Any comments or information is greately appreciated.
Thanks in advance, Brian
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Post by rxc on Feb 7, 2013 14:30:35 GMT
I don't know what Jeanneau did in 1994, but my 2003 43DS is pretty simple. My waterheater has a 110v element that is fed from the AC power panel, via a junction box near the heater. The hot wire leads to one of two thermostats (the regulator thermostat) in the tank, and then to the second safety thermostat, and then to the heater element. The ground wire goes back to the junction box, and then back to the AC panel.
If you wanted to route DC power from the solar panel/windmill to the water heater you would need to have at least a DPDT relay to completely isolate the AC and DC feeds, or else you would run the risk of connecting the DC side of your boat to 110/220v AC (not a good thing). This would have to be done very carefully...
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Post by bsafreed on Feb 8, 2013 2:13:46 GMT
rxc, thank you. I'm in the planning stage at this point. I'm also hoping someone within the forum has data on the water heater system.
As with most systems on board it's highly probable that I'll need to replace or upgrade the system due to its age anyway.
Best regards, Brian
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dough
New Member
42i
Posts: 3
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Post by dough on Feb 8, 2013 12:15:31 GMT
On My 42i I dump the excess power into th ehot water tank simply by turning on the inverter for 10-15 minutes.
Ours has a 1200w element fitted this uses 104 amps!! at 12v.
You can buy a 500 or 600 element if that suits you better.
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