Jeremy, we used use a screen fabric called Phifer Glass shade screen
(http://www.phifer.com/ExtSunControl.aspx#) which comes in 4' rolls and in
different levels of shading. For vertical collectors we anchored it along
the top of the collector and used awning type pulleys to roll it up on a
bottom r
Anyone have a good product besides plywood for a collector cover? 4x8 ft.
Thx!
Jeremy Rodriguez
All Solar
Colorado, USA
Sent via BlackBerry. Sorry for typos and shorthand!
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I'm a bit concerned that pop rivets would not be a good long term solution
in the Caribbean. Hurricanes cause a lot of stress on the mounting systems
and I am afraid the rivets would work loose over time in storms.
I am looking at Fablok
http://www.elcoconstruction.com/Products/Metal-Fastening/Riv
Jason,
I'm not clear what your request is for. The Slowpump was
originally developed for just such an application as you have
described. The principal limitation is that it has to be
fine-filtered on the intake side, to protect the precision
positive displac
I'm looking for something like the Dankoff Solar Slowpump 2507 except with
brushless motor. It needs to work PV direct.
It's for a low head application to replenish a water tank from a stream.
Recommendations?
*Jason Szumlanski** *
*Fafco Solar*
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L
Hi Larry,
No egg required. I think the non-MPPT version of the TriStar also has an
overload protection with auto reset.
Steve
Steve Bell
Technical Support Specialist
SunWize Technologies, Inc.
#1 Sun Street
Stelle, IL 60919 USA
(815) 256- ext. 23
sb...@sunwize.com
www.sunwize.com
Quote: "Your charge controller controls the load and current, hence the name
"controller"."
This is a common misunderstanding about how PV charge controllers work. The
load, not the controller, determines the current flow. Most PWM charge
controllers do not have a "charge rate limit", they simp
Well Steve,
Let me wipe the egg off my faceIt is right there on page 59 of Xantrex
manual, version 975-0004-01-02 Rev D. "If the current exceeds 85 amps, the
transistor switches are opened..." Upon further reading, it appears that all
three controllers can handle 85 amps intermittently. I'm
>
>
> We have used these a lot for a pergola/carport type application. They do a
good job at keeping most of the weather out, though of course there is no
promise of waterproof. Tools needed: tin snips and a rubber mallet. Notch
the rubber-covered metal part to fit, taking off about 1" on each si
Jason,
Glenn's point below sounds correct to me. We've run several microinverter
projects with romex, but always have to do the transition in the attic
because romex is not rated for wet locations. Some of the local
jurisdictions around the Bay Area are onto this point.
Also, NEC 250.64(B) de
That's exactly why I proposed the j-box in the attic. I agree with that
assessment. As for the combined EGC/GEC, NM cable will not be sized
adequately for a combined conductor.
*Jason Szumlanski** *
*Fafco Solar*
On Thu, Oct 25, 2012 at 11:37 AM, Glenn Burt wrote:
> Soladeck on the rooftop pla
Soladeck on the rooftop places it in an environment that is considered
'wet'.
I don't think Romex is listed for use in a wet environment.
This would force you to use the proposed jbox in the attic for the
transition location.
I also understood that you could combine the EGC and GEC into a sin
Good point. As I'm sure you've experienced, new means NO usually until the
case is made.
This all came to a head as we ran into a fairly inaccessible attic location
where feeding conduit is out of the question. I'll go for it and hope for
the best!
*Jason Szumlanski*
*Fafco Solar*
On Thu, Oct 2
Jason,
Why don't you transition to romex in the Soladeck, eliminating the need for a
junction box in the attic?
I abide by the CE Code (Canadian) and run a #6green from the roof to the dist
pnl.
benn
Sent from a 'smart' phone, with touch screen keys. Please excuse shortcuts and
typos.
On 2
Jason:
If bare copper can be subject to damage in the attic, the same would be
true of NMC. Is your inspector willing to shut down every residential
wiring project in his/her jurisdiction? I don't think so...
William
At 07:41 AM 10/25/2012, you wrote:
William,
Regarding the bare CU in t
William,
I have not been successful arguing that the load is integral within the
array despite the fact that the DC load is clearly utilized at the
microinverter. This has been a point of contention in area jurisdictions
since NEC 2008 was adopted and we started installing microinverters. Maybe
it
Jason:
You can run a 6 or 8 bare in the attic (don't have the book handy) alongside
your romex.
690.47 has an exception exempting the supplementary electrode if the DC load is
within the array, which is the case.
William
On Oct 25, 2012, at 6:12 AM, Jason Szumlanski wrote:
> I'm sure this
The C-40 does (or at least did) have Electronic Overcurrent Protection.
According to the C-40 manual if the current exceeds 63 amps the overcurrent
protection is activated. The C-40 automatically resets the OCP every 10
minutes until the problem is corrected or stops. The OCP can also be reset
I'm sure this has been covered, but I could not find it in the archives.
We are considering using Romex in the attic for the first time. My plan was
to use the new Enphase coupler to connect the trunk cable to Type TC-ER,
enter a Soladeck passthrough box on the roof into a junction box in the
atti
>From my personal experience.
Not true. If you put 80Aoutput potential on the input of a 40A PWM
controller, the output breaker will trip (assuming it is a 40A breaker). If
there is not an output breaker, you will smoke the controller. The C-40 does
not have a output current limit setting, like
It does "take". Your charge controller controls the load and current, hence
the name "controller". It is not a fixed resistance. If you program a
charge rate limit, the controller will control the current flow to limit
the charge rate, hence it is "taking" a certain current up to the limit of
the s
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