Re: [RE-wrenches] Cracked Glass...Warranty? If you used rail and the nuts were too tight ...
"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
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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
Re: [RE-wrenches] Cracked Glass...Warranty?
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 http://www.solar-electric.com/ http://www.solar-electric.com/ Description: Description: Signiture pic 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 image001.jpg___ 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
Re: [RE-wrenches] Cracked Glass...Warranty?
If you don't see any sign of impact, look closely at the area in front of the junction box. Any discoloration is an indication that it has been hot in that area. This often is the case with a shorted diode. The heat will stress the glass and cause it to fracture or make it susceptible to fracture from any minor stress. The glass will usually have larger fragments in that area and finer fragments farther away. A shorted diode should be warranty issue. Kent Osterberg Blue Mountain Solar, Inc. www.bluemountainsolar.com On 3/13/2012 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
Re: [RE-wrenches] Cracked Glass...Warranty?
A few years ago there was a rash of this type module glass breakage caused by flaws in the glass, that would not show up until a year's worth of thermal cycling. I saw several of the non-frame glass only modules fail in California sun. Without a frame they would curl-up into a U shape. Usually the glass needs to cycle from very cold to very hot several times, or be very hot in sun then a sudden rain to cause this glass flaw to fail. Like electronics, if this did not happen in the first year after installation it most likely was something other than flaw in glass. Anyway, I thought this was going away with better quality controls on the glass used in module manufacturer. Jeff Yago DTI Solar Inc. ___ 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
Re: [RE-wrenches] Cracked Glass...Warranty?
I would guess that it was the glass and tempering not complete, or done correctly. I worked at a glass temperaturing facility most of the sheets can out fine, but every now and then a few would shatter while on the belt. The temperaturing put to much stress in teh glass. From: Larry Crutcher, Starlight Solar Power Systems la...@starlightsolar.com To: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Tuesday, March 13, 2012 2:34 PM 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___ 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
