[RE-wrenches] SW4024 compatibility question

William Miller william at millersolar.com
Sat Oct 31 11:34:08 PDT 2009


Friends:

FWIW, I have synced a 4048 with a 5548.  It seemed to work fine up until 
the customer refused to pay me and then I lost interest!

William



At 07:59 AM 10/31/2009, you wrote:
>I have an early vintage SW unit (which is overdue for retirement but 
>refuses to break...)
>
>Those early models had to be physically removed from the wall to get the 
>cover off, so a chipset replacement was difficult. Then Series II came out 
>(which can be identified by the easier method for removing the cover).
>
>There were additional revisions to the physical hardware when Series II 
>came out, and I've carried the notion that Series II was not backward 
>compatible to Series I.
>
>Dave Katz' suggestion is something that I'm sure you'll want to pursue, 
>but I advise that all digits of the firmware revision should match...and 
>that both inverters should be Series I or II, not mixed.
>
>I have an extra chipset that I never installed...owing to the difficult 
>replacement process...so we could compare notes further if you wish.
>
>Jolliness,
>
>Mick Abraham, Proprietor
><http://www.abrahamsolar.com>www.abrahamsolar.com
>
>Voice: 970-731-4675
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