Re: [RE-wrenches] Cracked Glass...Warranty? "If you used rail and the nuts were too tight ..."

[Martin E. Herzfeld]

"If you used rail and the nuts were too tight ..." ? Specifically suggest for the "Sanyo HIT N215A01" found on page 1 consider the "Recommendation of bolt torque range: 16N.m to 20N.m" found on page 2 here: http://us.sanyo.com/dynamic/LinkListingItems/Files/%E3%80%90RM11-109%E3%80%91HIT%20Power%20Installation%20Manual%20for%20NxxxA01%20110613-1.pdf On 3/13/2012 12:41 PM, David Lauzon wrote: If you used rail and the nuts were too tight there is potential for the glass to break with no real sign due to the glass actually flexing too much.   David Lauzon Northern Arizona Wind and Sun Phone-928-526-8017 / 800-383-0195 Fax-928-527-0729 Website-http://www.solar-electric.com   From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Larry Crutcher, Starlight Solar Power Systems Sent: Tuesday, March 13, 2012 12:35 PM To: RE-wrenches Subject: Re: [RE-wrenches] Cracked Glass...Warranty?   In my business I see quite a few broken modules each year. As I recall, in every instance there is a visible point where the impact occurred. Typically a small radial pattern is around the impact point but then random patterns over the rest on the module. Look close. Hope this helps.  Larry Crutcher Starlight Solar Power Systems (928) 342-9103       On Mar 13, 2012, at 12:21 PM, benn kilburn wrote: Wrenches, I recently inspected a system I installed in 2010, because the owner commented that it appeared the frost wasn't melting off of one particular module as it was from the others.  Turns out the module glass is shattered.  There are no obvious (that i can see) impact points, leading to the question... Why did the glass shatter?   I don't want to just assume, but if there is no sign of impact, I'm wondering if this could be a warranty issue?  Frame expansion/contraction due to temperature swing maybe?   Any experiences, thoughts or advice?   Module is a Sanyo HIT N215A01   Thanks,   benn kilburn Construction Electrician (NOC7241) Solar Photovoltaic Systems Certified Certificate # 0007S DayStar Renewable Energy Inc.  b...@daystarsolar.ca 780-906-7807  HAVE A SUNNY DAY     _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org

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