SunFrost Voltage Upgrade question [RE-wrenches]

[Allan Sindelar]

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Here is followup on the Danfoss compressors. I spoke with Larry at Sun
Frost. Units built within the last 3 or 4 years have the switchable voltage,
12/24. Units built before this time are fixed voltage. Switching both
compressor and power module would be required and would be very expensive.
So Larry recommends a DC converter. He further says worst case on a
two-compressor RF16 would be one compressor starting (15A) and one running
(5A), thus requiring a converter of 20A capacity.

So we are back to my original question (with appreciation for the good new
info so far): whose DC converter have you used with good success?

Thanks again,
Allan @+E

----- Original Message ----- 
From: "Christopher Freitas --- OutBack Power" <cfreitas at outbackpower.com>

That is a great link Kurt - lots of info on the Danfoss compressors -
but there is one scary note at the very bottom:

------------------------------------------------------

Danfoss Power Modules For Older (4-Pin) Compressors.

Feb. 19, 2003 - Danfoss has discontinued production of all 4-pin
modules.  Owners of older 4-pin compressors will need to replace both
the module and compressor with either the BD35F or BD50 above.

------------------------------------------------------

Not sure if Sunfrost used this module or not - I suspect that it is
possible because of the number of years they have built fridges...

> Does it use one of the Danfoss hermetic compressors with the external
> power module?  If so, upi're in luck -- just swap the old 12V power
> module for a 24V one or the new dual voltage
>
version<http://www.rparts.com/Catalog/Major_Components/compressors/Danfoss/d
anfoss.asp>
>


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