<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial, helvetica, sans-serif;font-size:10pt"><div>William</div><div><br></div><div>My SW4048 went through 3 boards from 98-04 until I retired it. Blowing salty air across a FET rail and mother board that is not conformal coated, created a perpetual triage environment.</div><div><br></div><div>Sealed units or units that pull air out vs blowing them directly on their boards in a coastal environment will increase the likelihood of a longer service life.</div><div><br></div><div>Alot of this experience birthed SMA's first generation inverters with the giant fins on the top, like my 2500 grid tied unit.</div><div><br></div><div>Heat, salt and varying voltage, amperage and watts flowing into these devices surely contributes to their longevity as well.</div><div style="font-family:arial, helvetica, sans-serif;font-size:10pt"><br><div
style="font-family:times new roman, new york, times, serif;font-size:12pt"><font size="2" face="Tahoma"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> William Miller <william@millersolar.com><br><b><span style="font-weight: bold;">To:</span></b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br><b><span style="font-weight: bold;">Sent:</span></b> Tue, November 2, 2010 6:51:11 PM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [RE-wrenches] Expected Life of SW Inverters<br></font><br>
<font size="3">Friends:<br><br>
Speaking of life expectancy, has anyone had experience with SW inverters
in a coastal environment?<br><br>
William Miller</font>
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