12 VOLT controller [RE-wrenches]

Mark Downing, Hurshtown Alt. Power solarman4 at yahoo.com
Sun Oct 12 05:50:22 PDT 2003


It needs to be a 12VDC power supply.  We are currently using an inverter and
110Vac differential.  It's off-grid and we don't have the extra .5A to waste.

I have a local guy that built DC units but haven't been able to get him to
return my calls.

--- SOLARPRO at aol.com wrote:
> I am in dire need of a 12V differential controller that uses 10K
> thermisters for use on a Solar DHW system
> 
> Do you mean a controller that use 12 volt power to operate, or one that
> uses 12 volts (instead of 24) on the thermistor?  Do you mean 12 volt AC
> or DC? 
> IF DC, I suppose if you have a constant 12 volt DC source (like a
> battery) you could use one of those cheap automotive low power inverters
> to convert to AC for a differential controller made for instance by
> Goldline Controls (formerly Independent Energy) model GL-30.  In
> Graingers catalog.
> 
> Let me know if you find a 12 V DC powered diff controller.one.
> 
> Patrick A. Redgate
> AMECO
> Long Beach, CA
> (562) 595-9570
> www.amecosolar.com
> 


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