[RE-wrenches] DC-DC converter for Sun Frost

[robert ellison]

Seems like i remember the early ones had relay based temp switches, might
work to wire them like a well pump transformer, put the converter between
the relay and the compressor. Disadvantage, it has 2 compressors. You
could put the converter on the side that runs the most, then both can come
on when the most used unit comes on. Otherwise you would have to do it with
2 units or put up with the parasitic load from the converter.

I would think that would work,

Bob



On Wed, Oct 7, 2009 at 1:04 AM, Allan Sindelar <
allan at positiveenergysolar.com> wrote:

>  Wrenches,
>
> Simple question, I know: what has worked well as a 24V – 12V DC-DC
> step-down converter for a Sun Frost? I am doing a design to completely
> rebuild/replace an early-90s off-grid 12V system with a new system at 24V.
> The only DC load is a Sun Frost. I think it’s an RF16, so dual-compressor. I
> know of at least three converters: Solar Converters; BZ Products; ICT; and
> I’m sure there are many more. What has worked well, with minimal ghost load?
>
>
>
>
> Thank you,
>
>
>
> Allan Sindelar
>
> Allan at positiveenergysolar.com
>
> NABCEP Certified Photovoltaic Installer
>
> EE98J Journeyman Electrician
>
> *Positive Energy, Inc.*
>
> 3201 Calle Marie
>
> Santa Fe, New Mexico 87507
>
> 505 424-1112
>
> www.PositiveEnergySolar.com <http://www.positiveenergysolar.com/>
>
>
>
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