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Mick, I don't believe Apollo make a T-100, only a T80 and T-80HV. Allan Sindelar On 10/20/2010 10:13 AM, Mick Abraham wrote: This sounds like a job for a single Apollo T-100. If you do that, Jay, be sure to wire the solar strings with somewhat more than 36 PV cells for every 12 volts of battery.Jolliness, Mick Abraham, Proprietor www.abrahamsolar.com Voice: 970-731-4675 On Wed, Oct 20, 2010 at 10:00 AM, Kent Osterberg <k...@coveoregon.com> wrote:William, There are some issues with putting the charge controller at the other end of the feeder: 1. The advantage of a higher voltage feeder is lost. 2. The voltage drop in the feeder will mess up the charge controller's absorption and float set points. Say there is only 1% drop in the deeper, that's 0.14 volt for a 12 volt system (2x for 24 or 4X for 48 volts). If the feeder loss is more ... You could raise the set points at the regulator to offset the feeder loss, but the loss in the feeder is not a constant. 3. The charge controllers are not NEMA 3 rated, they need to be inside. Kent Osterberg Blue Mountain Solar William Miller wrote: Jay: Bad idea. The differences in tolerances within components will make one work harder than the other. They will never balance. Why not put the charge controllers at the other end of the feeder? William Miller At 08:06 AM 10/20/2010, you wrote: HI All, Say anyone ever paralleled mx/fm-60's? I have a unique situation that would be very expensive to pull additional wire however the existing wire is large enough to need 2 fm-60s' If I put a diode between them so they don't feed each other any problems that anyone knows of? thanks, jay _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org_______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org |
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