Re: [RE-wrenches] Fuse sizing in battery circuits

2013-04-05 Thread William Miller
rally recommended for this application. The data shows them as "fast acting." Is this a problem? Will they act too fast and open during normal surge loads? Thanks in advance! William Miller Troy, Overcurrent device size is matched to the conductor size. The inverse time con

Re: [RE-wrenches] Battery Terminal Connections

2013-04-02 Thread William Miller
John: Of course. The protocol is copper eyelet in direct contact with the flag. William At 06:51 AM 4/1/2013, you wrote: William: I agree completely on all points. I have also seen many bolt heads “migrate” through the battery terminals and even split the terminal. Washers are cheap

[RE-wrenches] Battery Terminal Connections

2013-04-01 Thread William Miller
-to-metal connections, torqued before any coating is applied. William Miller ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & settings: http://lists.re-wrenches.org/options.cg

Re: [RE-wrenches] Cable tray

2013-03-26 Thread William Miller
msy basket. Consider snow and ice and falling objects. Too many installers entered the PV field without first acquiring the necessary skills as journeymen or women electricians. I don't see the benefit of rewriting the code to accommodate a lack of skills in the industry. Respectfully, Wil

Re: [RE-wrenches] Cable tray

2013-03-25 Thread William Miller
severe. I don't believe you could or should run power to a rooftop AC unit in cable tray. Conduit is a tried and true practice and I recommend it. William Miller At 06:01 PM 3/25/2013, you wrote: Ouch. I promise I'm not advocating for anything like that. What I may be missing i

Re: [RE-wrenches] Cable tray

2013-03-25 Thread William Miller
7; to do anyway. Unless I am missing something... Thanks! William Miller PS: Just kidding. Hope no offense is taken. wm At 03:46 PM 3/25/2013, you wrote: So if you ever get called on 392.10(B)(2), I think you can point out that the Code Making Panels have been busy clarifying that cable

Re: [RE-wrenches] GSCM-mini with Honda EM5000SX

2013-03-25 Thread William Miller
into the lead, loosening connections. All mating surfaces need to be newly wired brushed just before assembly. Battery connections need to be re-torqued annually. William Miller At 09:40 AM 3/25/2013, you wrote: Larry, Thanks for your reply. For some reason the schematic I received from

Re: [RE-wrenches] Batteries and customer service

2013-03-15 Thread William Miller
Lou: Allan presents the better advice below. Ignore my previous post until you are sure the battery is bad. William Miller At 02:57 PM 3/15/2013, you wrote: Lou, There is nothing in your message that definitively tells me that you have either a bad cell or a bad battery. "

Re: [RE-wrenches] Batteries and customer service

2013-03-15 Thread William Miller
Lou: At 1 year you are just within the allowable window. I would monitor the bank over the next two months after replacement to see if the SG remains consistent from cell to cell. William Miller At 01:38 PM 3/15/2013, you wrote: Hello Wrenches, Assuming the one battery is bad, is it

Re: [RE-wrenches] 14 inch aluminum standoffs?

2013-03-15 Thread William Miller
Andrew: DPW has aluminum stand-offs at least 12", and quite possibly 14". They are custom order. They are good quality. William Miller At 01:52 PM 3/15/2013, you wrote: Fold Two: Does anyone know of a source for 'standoffs' that are greater than 7"s but less

Re: [RE-wrenches] Conductor Sizing for Supply Side Connection

2013-03-01 Thread William Miller
AC breaker trips. The breaker may not trip if Gen Support is enabled and Gen Amps is configured not to exceed the generator's rated output current. I hope this information is relevant, correct and helpful. Sincerely, William Miller At 08:24 AM 3/1/2013, you wrote: Larry: In the case

Re: [RE-wrenches] DC circuit breakers in parallel

2013-02-27 Thread William Miller
not presume to know about the requirements of internal ganging. William Miller At 08:06 AM 2/27/2013, you wrote: Hello Wrenches, I am installing a Classic 150 controller in an RV with potential 95 amps output at 12 volts. The customer has a Midnite DIN box and wants me to use it for the

Re: [RE-wrenches] GJ series breakers 250A 250vdc

2013-02-26 Thread William
Amen. See millersolar.com for examples. William Miller On Feb 26, 2013, at 10:49 AM, Ray Walters wrote: > HI Jeremy, Bob; > > That's the little strap that would slice you open if you weren't careful. > That's a very hard box to work in just with one inverter.

Re: [RE-wrenches] Electric car chargers

2013-02-23 Thread William Miller
, please. If you have a specification sheet or photo of an equipment plaque, that would be appreciated. William Miller At 06:04 AM 2/23/2013, Mike Nelson wrote: I recently installed a tesla charger, 100 amps at 240v, grid tied customer. Michael D Nelson

[RE-wrenches] Electric car chargers

2013-02-22 Thread William Miller
advance. William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 ___ List sponsored by Home Power magazine List Address: RE-wrenches

Re: [RE-wrenches] Remote Sunny boy Monitoring

2013-02-22 Thread William Miller
Steve, Ryan: I don't quite have line of sight. There is the brow of a hill... I will look to see if any of the wireless solutions will handle this scenario. Wm At 12:57 PM 2/22/2013, Steve Jefferson wrote: Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_41FE25

[RE-wrenches] Remote Sunny boy Monitoring

2013-02-22 Thread William Miller
hardwire path that solution is not so easy. Apparently I need to asses the viability of a wireless RS485 system. I am wondering: 1. Do I understand the above scenario correctly? 2. Do any of you have any experience with wireless 485 systems? Thanks again for all of the help. William Miller

Re: [RE-wrenches] SB2500 Refurbish program gone

2013-02-20 Thread William Miller
Steve: Thanks for your input. I think there is enough general interest amongst this group that it would be useful for you to enlighten all of us on-line as to what the options are. Thanks in advance. Sincerely, William Miller At 08:51 AM 2/20/2013, you wrote: Morning Wrenches, SMA is

[RE-wrenches] Solar-direct pool pumping

2013-02-20 Thread William Korthof
otch above experimental beta-test. I remember the SunCentric from several years ago, but not sure how durable that turned out, and I was having trouble a vendor for it now. Any suggestions for today with some favorable track record? Or suggestions on what to avoid? William Korthof Sustainable Solution

[RE-wrenches] SB2500 Refurbish program gone

2013-02-19 Thread William Miller
to be warned in advance so you bring the material and metric fasteners. It is a shame that with such a large installed base of SB2500 inverters out there that the factory will no longer repair them. Is there a third party repair shop I don't know about? William Miller Miller Solar V

[RE-wrenches] Sunny boy monitoring

2013-02-19 Thread William Miller
Friends: I have a legacy client with a SB2500 remote from a residence. We are using a Control Light but it is becoming more and more unreliable. What experience do any of you have with PLC communications with the Sunny Boy using more modern equipment? Thanks in advance. William Miller

Re: [RE-wrenches] Corrugated roofing mounts

2013-02-18 Thread William Miller
em snapping off while being driven. William Miller At 09:26 AM 2/18/2013, Ray Walters wrote: I've got a project right now on a steel roof. I was just at a trade show last week, so I got to look at the latest gizmo from S5. I didn't like it at all, it didn't go into the valleys like

Re: [RE-wrenches] Corrugated roofing mounts

2013-02-18 Thread William Miller
. This is much easier than adding blocking to create purlins. This only works if you are installing a fastener through the peak of the corrugation. With the S5 product you have to find framing under two locations, not one. William Miller At 02:04 PM 2/16/2013, you wrote: The S-5 bracket loo

[RE-wrenches] Corrugated roofing mounts

2013-02-15 Thread William Miller
ot;. There are products with height measurements of 0.5 and 0.875. I have a few questions: 1. How do I figure out which roofing product I have? 2. Does it matter if the spacing varies from one location to the next? 3. Does anyone have experience with the CMB product. Thanks in advance. William

Re: [RE-wrenches] PowerOne Micro Inverters-

2013-02-14 Thread William Dorsett
#x27;s just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless! - William McDonough _

Re: [RE-wrenches] getting PV modules up to the roof

2013-02-08 Thread William Miller
Eric: I'd be careful about attaching a large object to the back of anyone climbing a ladder. You are attaching a sail to your climber and if a gust comes up there is no easy way to shed a back pack while holding on for dear life. William Miller At 12:51 PM 2/7/2013, you wrote: I

Re: [RE-wrenches] Mobil inverter with Gen support

2013-02-05 Thread William Miller
the manual and did not see this function. William Miller PS: Xantrex SW, Xantrex XW, Outback Radian and Sunny Island all do this. I don't think any of them provide neutral switching. Wm At 02:22 PM 2/5/2013, you wrote: Hello William, If by mobile you are referring to the neutra

[RE-wrenches] Mobil inverter with Gen support

2013-02-05 Thread William Miller
mobile. I have heard the Sunny Island has gen support, but don't know yet if it is mobile capable. Thanks in advance. William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-7

Re: [RE-wrenches] Wire sizing calculator online

2013-02-03 Thread William Miller
erent consideration for AC versus DC in New Zealand. Do you know what other Metric based nations use for determining wire resistance values? Thanks in advance. William Miller At 04:32 PM 2/3/2013, Carl Emerson wrote: Hi William, Just a comment on the spreadsheet. You have made provisio

Re: [RE-wrenches] Wire sizing calculator online

2013-02-03 Thread William Miller
all common wire sizes in one view so you can evaluate the tradeoffs for various scenarios. Questions or comments are appreciated. William Miller At 09:54 PM 2/1/2013, toddc...@finestplanet.com wrote: thank you... this is useful. do you have william millers calculator too? its attached in

Re: [RE-wrenches] generator suggestions

2013-01-30 Thread William Miller
. It took him 45 minutes and actually reading the book to figure it out. Again, a very limited exposure to the machine, but it's all I got. William At 10:54 PM 1/29/2013, you wrote: I just found Generac's Off grid model 6 Kw. I know I've heard nothing but $%& about Genera

Re: [RE-wrenches] Husqvarna 5500 and VFX3524 Compatibility question

2013-01-29 Thread William Miller
Allan: Could it be that the SW systems are protecting the generator with Generator Support, and the Outback inverters are not? William Miller At 07:18 PM 1/29/2013, you wrote: This is going back several years... The Outback VFX series lacks the tight input current regulation of the SW

Re: [RE-wrenches] high insolation value and inverter undersizing

2013-01-27 Thread William Miller
Jesse: Do you have any way to compare the total harvest for the day for a given module in a "clipping" scenario versus an unclipping? The question I want to answer is: Do we improve production enough on the shoulders of the clip to justify the loss on the peak? Thanks, William M

Re: [RE-wrenches] AC De-combiner?

2013-01-27 Thread William Miller
required. William Miller PS: You did say all feedback is appreciated Wm At 02:27 AM 1/26/2013, you wrote: Fellow Wrencher's, I have a project that I will be installing 4 string inverters on a roof and combining the output into a 3 phase Load center. Once in the basement I would like

[RE-wrenches] Blue Sky V Outback

2013-01-24 Thread William Miller
Friends: If you are accustomed to using an Outback CC and not the Blue Sky, there is an important difference: The Blue Sky requires that the PV negative current be routed through the device. William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http

Re: [RE-wrenches] 24V Module Query

2013-01-24 Thread William Miller
charging rates of each string individually and the strings combined and we found the system worked pretty well. Good luck, William Miller ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & sett

Re: [RE-wrenches] Awkward Mid-clamps & jigs for installing or removingmodules?

2013-01-18 Thread William Dorsett
the Ironridge racking system much better than ProSolar or Unirac. I've seen plenty of demos with Creotec but haven't had the opportunity to use it yet. Looks very cool though and has some rave reviews. Eric Stikes SunHarvest - Original Message - From: William Dorsett <mai

Re: [RE-wrenches] Awkward Mid-clamps & jigs for installing or removing modules?

2013-01-18 Thread William Dorsett
-boun...@lists.re-wrenches.org] On Behalf Of benn kilburn Sent: Friday, January 18, 2013 2:09 PM To: Wrenches Subject: Re: [RE-wrenches] Awkward Mid-clamps & jigs for installing or removing modules? William, Your helper is suggesting using 4 end-clamps per module, is that right? Sounds like a good c

Re: [RE-wrenches] Awkward Mid-clamps & jigs for installing or, removing modules?

2013-01-18 Thread William Dorsett
(short angle first) flat up under the bottom rail, and tip them up 90 degrees. The short angles hook on the rail and the module can rest on the long angles. I can adjust them for any module and it's a lot easier to get the array aligned. Message: 4 Date: Fri, 18 Jan 2013 11:35:56 -0600 From:

[RE-wrenches] Awkward Mid-clamps & jigs for installing or removing modules?

2013-01-18 Thread William Dorsett
Single-handed mounting for replacing or installing modules on racks. My helper installing an array on an Iron Ridge rack commented (like so many of you have surely thought) that the mid-clamps are really clumsy. His suggestion was that on his, he would lengthen the rail and only use end clamps so e

Re: [RE-wrenches] mate + flexnet DC

2013-01-13 Thread William Miller
Friends: I've heard that you can apply an external supply and avoid the inverter, if desired. William At 07:28 PM 1/13/2013, you wrote: Jay, the flexnet dc requires at least one inverter or charge controller, plus a hub. The device is powered by the inverter/controller's po

[RE-wrenches] Wire management

2013-01-09 Thread William Miller
/_PV_Wiring2.html for information. I hope the material included is helpful to some of you. Thanks, William Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 ___ List sponsored by Home

Re: [RE-wrenches] Off-grid e-gauge system

2013-01-02 Thread William
Thanks a lot for configuring this for my benefit. I'll check it out and let you know if I have any questions William Miller On Jan 1, 2013, at 4:47 PM, Chris Mason wrote: > William, > I converted the generator to autostart and added an alert, so you can see how > the egauge

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-31 Thread William
AC source. This is probably causing repeated generator failure with a client I am working with at the present This an advanced consideration that may be a lot to educate an inspector about. If you do choose to down-size the feed breaker, just adjust your math accordingly. William Miller On

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread William Miller
Jeremy: You are welcome, but credit belongs to Kent Osterberg. wm At 09:02 PM 12/30/2012, you wrote: William, They are using the 2011 code, so we should be good. 705.12D2 exception is a little confusing at first, but I got it. Jeremy Sent via BlackBerry. Sorry for typos and shorthand

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread William Miller
to 150 A, but not easily. The fit was not perfect -- I had to modify the hold down bracket, but it passed inspection. Technically I suppose the MMC was no longer compliant with the listing once I modified it, but sometimes you gotta do what you gotta do. Good Luck. William Miller * PS: I

Re: [RE-wrenches] Point of Connection 705.12D2 Exception

2012-12-30 Thread William Miller
Kent: I do not have that document handy at this moment. Can you send the citation, please? Thanks, William Miller At 04:56 PM 12/30/2012, you wrote: If you are using the 2011 NEC, 705.12(D)(2) has an exception to the 120% rule for inverters with energy storage to allow for operation of

Re: [RE-wrenches] Barcode Scanners

2012-12-29 Thread William Dorsett
Right on.a database tracking module serials would also allow tracking module reliability and output. Bill Dorsett Sunwrights Manhattan, KS From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason Szumlanski Sent: Saturday, Decem

Re: [RE-wrenches] Off-grid e-gauge system

2012-12-27 Thread William Miller
battery charging minus efficiency losses. Is this your understanding? William At 03:13 PM 12/27/2012, you wrote: Wattage from a generator or generated power? Generated power is the same as load, right? On Thu, Dec 27, 2012 at 5:50 PM, William Miller <<mailto:will...@millersolar.co

Re: [RE-wrenches] Off-grid e-gauge system

2012-12-27 Thread William Miller
nd responsive to special requests. This is a good service model. I will continue to use their products. William Miller At 03:30 PM 12/27/2012, you wrote: The eGauge can measure battery voltage now (using L3 input), been running with it for months, and they are finishing up work on a DC

Re: [RE-wrenches] Off-grid e-gauge system

2012-12-27 Thread William Miller
Chris: I want to measure generator watts. William At 01:16 PM 12/27/2012, you wrote: <http://egauge2574.egaug.es/>http://egauge2574.egaug.es/ Now, what do you want to measure. Being an off-grid system, all you can measure is the output. The normal use for an egauge is to compare load

Re: [RE-wrenches] Off-grid e-gauge system

2012-12-27 Thread William Miller
Chris: I am trying to demonstrate for a potential customer what and E-Gauge display on an off-grid system would look like. Wm At 11:38 AM 12/27/2012, you wrote: I can rig something, what are you looking for? On Thu, Dec 27, 2012 at 3:15 PM, William Miller <<mailto:will...@millersol

[RE-wrenches] Off-grid e-gauge system

2012-12-27 Thread William Miller
Friends: I am looking for an E-Gauge system on the E-Gauge Devices page that is monitoring an off-grid system. Anyone know of one? TIA William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985

Re: [RE-wrenches] XW. Ags

2012-12-26 Thread William Miller
try setting the start voltage a volt above whatever your battery voltage is at the moment for testing. Setup if more trouble than it should be. I use Gen. Type 2 for two wire starting. Good luck. William PS: Have you checked the menus: AGS/CFG Trigger/Start DCV 30 sec through DCV 24 hour

Re: [RE-wrenches] Enphase box bracket?

2012-12-26 Thread William Miller
y in production. William At 05:57 PM 12/26/2012, you wrote: Hello all, Does the Enphase box mounting bracket have compatibility problems with any top down mounting rail? (Solar mount, ironridge std) Jesse ___ List sponsored by Home Power magazin

Re: [RE-wrenches] Tying a ground mount to sandstone slab

2012-12-23 Thread William
One word: Ballasted. William Miller On Dec 23, 2012, at 9:03 AM, Mac Lewis wrote: > Hi Wrenches, > > I am working on a project right now where we need to figure out how to put an > 8kW ground mount on a property that is covered with a sa

Re: [RE-wrenches] Best elevated ground mount

2012-12-20 Thread William
Mark: I will put something on our web site pronto. William On Dec 20, 2012, at 8:37 AM, "Mark Dickson" wrote: > Hello William, > We are waiting to hear if we get a project for 85kW worth of MPM mounted > arrays. I would be very interested and appreciative if you could

Re: [RE-wrenches] Best elevated ground mount

2012-12-19 Thread William Miller
expanded aluminum. Ask if you want a photo or two. I am really hoping some manufacturer will develop wire shielding. According to the inspectors, locals are using chicken wire or hardware cloth which I doubt is reliable or bonded. William Miller At 11:49 AM 12/19/2012, James Reismiller

Re: [RE-wrenches] Radian design limitation - am I missing something?

2012-12-17 Thread William Miller
th what is available. Good luck, William At 10:41 AM 12/16/2012, you wrote: Wrenches, Please tell me if I'm overlooking something, in what appears to be a design weakness: I would like to use an Outback Radian system for a standard GTBB system. In order to take full advantage of the

Re: [RE-wrenches] off grid PV connected to generator

2012-12-12 Thread William Miller
August: The apocalypse. No, seriously, this is a scenario not supported by any manufacturer I know of. The report we have is it is likely the generator will be damaged. I recommend against it. William Miller At 02:07 PM 12/12/2012, you wrote: Hi Wrenches, I have a quick theoretical

Re: [RE-wrenches] Pilot Hole Template

2012-12-11 Thread William Miller
Jesse: How are you going to avoid crushing the foam when you tighten your fasteners? William Miller At 06:00 PM 12/11/2012, you wrote: Hello, The roof I'm currently working on is not a typical roof. The construction is as follows: 2"x6" tongue and groove exposed inside, w

Re: [RE-wrenches] off-grid permitting problem

2012-12-11 Thread William Miller
appliances and wattages and system watt hours provided. Dress it up, put your logo on it and sell it to the building department. William Miller At 07:52 PM 12/11/2012, you wrote: Content-Type: multipart/alternative; boundary="=_NextPart_000_0006_01CDD7F2.373D3CB0" Content-La

Re: [RE-wrenches] LUX to STC conversion?

2012-12-11 Thread William Dorsett
perature at 25°C. On Tue, Dec 11, 2012 at 10:02 AM, William Dorsett wrote: Off the top, can anyone tell me how many lux of sunlight represent 100% of STC? 1000 watts/sq meter? Bill Dorsett Sunwrights 1715 Leavenworth Manhattan, KS 78

[RE-wrenches] LUX to STC conversion?

2012-12-11 Thread William Dorsett
Off the top, can anyone tell me how many lux of sunlight represent 100% of STC? 1000 watts/sq meter? Bill Dorsett Sunwrights 1715 Leavenworth Manhattan, KS 785/539-1956 Home/Office ___ List sponsored by Home Power magazine List Address: RE-wr

Re: [RE-wrenches] Two Load Questions

2012-12-11 Thread William Dorsett
I've used FanWorks permanent magnet DC ceiling fans and they use very little draw and are available in 12 or 24.tap off a 48V battery bank or use a buck converter? http://www.thesolar.biz/RCH%20Fan%20Works%20DC%20Fans.htm Doesn't spin very fast at 12V but destratifying air doesn't take much mo

Re: [RE-wrenches] Fix the Fluorescents: What about LED tubes for late 2012?

2012-12-05 Thread William Dorsett
In the early days, LED's were rated by the candela and so everything was apples and oranges. Long time ago, I used an LED to allow boats to navigate into a narrow passage by lining it up with a second one a distance away. You didn't have to read a map by it, just see it. As you said Alan, with Chri

Re: [RE-wrenches] bubbling Sanyo modules

2012-12-04 Thread William Dorsett
On Sunday, I noticed a Sanyo HIT system we put in about the same time was dirty so I stopped, hooked up their garden hose and rinsed it off. There is a disturbing yellow modeling that appears to be under the glass though I won't know until I get some soap and really wash it. Kind of gave me flash b

[RE-wrenches] Connecting Two Grid-Battery Backup Inverters to 120/208

2012-11-28 Thread William Korthof
neutral, and xfmr losses... Alternate option is to get an isolation transformer with 208 primary and 120/240 secondary. Bond the midpoint. Better phase balance, but xfmr losses. /wk William Korthof 714.875.3576 Sustainable Solutions #956904 - From: Christopher Warfel We

Re: [RE-wrenches] Connecting Two Grid-Battery Backup Inverters to 120/208

2012-11-28 Thread William Miller
connect directly to an Outback inverter system in single phase mode. Good luck, William Miller At 10:06 AM 11/28/2012, Christopher Warfel wrote: We were asked to replace two failed Trace SW4048 inverters with two Outback GT3048 inverters. Upon start up the slave inverter would not connect. We

Re: [RE-wrenches] Info On 2 V batteries Please

2012-11-27 Thread William Miller
Peter: These batteries sound like IBE 85N batteries. See link below. I need to warn you that this company has about the worse web site in the industry. http://www.ibe-inc.com/html/altenergy.htm William At 01:31 PM 11/27/2012, you wrote: We recently purchased a battery powered forklift

Re: [RE-wrenches] Enphase voltage out of range errors

2012-11-27 Thread William Miller
. William At 09:49 AM 11/27/2012, you wrote: William Double check your voltage drop on the AC branch circuits, and make sure that you consider your wiring between inverters. Remember that voltage drop is additive and each inverter will see a slightly lower voltage drop which could account for

[RE-wrenches] Enphase voltage out of range errors

2012-11-26 Thread William Miller
in advance, William Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: h

Re: [RE-wrenches] Best practices for conduit penetration on roof

2012-11-25 Thread William
And if over 250VDC, bonded. William On Nov 25, 2012, at 1:58 PM, Bob-O Schultze wrote: > Don't forget that EMT carrying DC within a building has to be marked every > 10'. > Bob-O > > ___ List sponsored by Home Power m

Re: [RE-wrenches] Best practices for conduit penetration on roof

2012-11-25 Thread William Dorsett
Dave, does Soladeck have a smaller basic junction box without the combiner box fittings? Bill Dorsett Manhattan, KS -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dave Palumbo Sent: Sunday, November 25, 20

Re: [RE-wrenches] Strong PV Mfgs

2012-11-22 Thread William Dorsett
The news tonight commented that Panasonic/Sanyo has been downrated to "junk status." From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Solarguy Sent: Wednesday, November 21, 2012 7:58 PM To: 'RE-wrenches' Subject: Re: [RE-wrenches]

Re: [RE-wrenches] Hydro Diversion Controls

2012-11-22 Thread William Miller
nough headroom Thanks again to all of you. William At 08:32 PM 11/21/2012, David Katz wrote: William, I always connect the hydro side of the diode to the diversion load with the contactor, so I don't pull the battery down while regulating. The diversion load must draw enough current to pull

Re: [RE-wrenches] Strong PV Mfgs

2012-11-21 Thread William Dorsett
Drake, there is an article in Oct--Nov SolarPro which gives this type of information on 40 different module mfg's with company longevity, and which are covered by a third party insurance company: Bit.ly/SPprofiles. Thanks SolarPro. This is exactly the kind of information we need. Bill Dorsett

[RE-wrenches] Hydro Diversion Controls

2012-11-21 Thread William Miller
uot;Do not open." I have been using a fuse, but if it opens, it is likely to remain undetected for a longer time. Thank in advance. William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License

Re: [RE-wrenches] Roof flashings on L-feet in high snow load conditions

2012-11-14 Thread William Miller
Ben: We do not put anything between the foot and the shingles. Maybe some EPDM rubber William At 07:08 PM 11/13/2012, you wrote: William, Yeah the term 'gravity flashing' is new to me too. While adding Lfeet for support without lagging them into the roof seems like a reasonabl

Re: [RE-wrenches] Roof flashings on L-feet in high snow load conditions

2012-11-13 Thread William Miller
of some DPW racking products if the span is long. This should be an easy way to provide more snow load support. The caveat is that, on pitched roofs, the resting feet do not provide any support down pitch. William Miller At 08:04 AM 11/13/2012, you wrote: Hi all, We have been doing PV

Re: [RE-wrenches] EMT in attic - vs FMC vs armored cable

2012-11-09 Thread William Miller
Hilton: This is an intriguing concept: The universal PV AC/DC cable. It has a red, black and white #10, a green #8, it's rated for 600 V AC or DC and for wet locations with a metallic cover. I'd buy a roll. Where do we get it? William Miller At 11:54 AM 11/9/2012, you w

Re: [RE-wrenches] Helios Modules

2012-10-31 Thread William Dorsett
Rich, Helios is one of the module companies that is offering the Exceltech Solar ACPV modules. I too would like to know more about the company and other peoples' experiences. Bill Dorsett Sunwrights Manhattan, KS -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:r

Re: [RE-wrenches] AC Modules ready for primetime?

2012-10-30 Thread William Dorsett
Kirk, the BenQ modules use SolarBridge inverters. One of the questions to ask with ACPV is who backs the warranty on the inverter. According to SolarBridge's website, the module manufacturer warranty's the combination. This is fine as long as the mfg stays afloat but in this time with such major pl

Re: [RE-wrenches] SDHW collector covers

2012-10-25 Thread William Dorsett
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

Re: [RE-wrenches] Enphase and Romex

2012-10-25 Thread William Miller
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

Re: [RE-wrenches] Enphase and Romex

2012-10-25 Thread William Miller
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

Re: [RE-wrenches] Contract Examples

2012-10-24 Thread William Miller
unmarked private utilities while boring or trenching. -The customer changes the design. -The roof has hidden defects. -The Enphase or other communication medium does not work. -The materials are delayed due to no fault of mine. Good luck! William At 01:15 PM 10/24/2012, you wrote: Although, not

Re: [RE-wrenches] Ten K Solar

2012-10-23 Thread William Dorsett
ules, so that is not especially new. Tho did I read MPPT at the cell level? That would be new. Bill Dorsett Sunwrights Manhattan, KS -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Monday, October

Re: [RE-wrenches] Ten K Solar

2012-10-22 Thread William Miller
standards. There is no breaker that will protect your wiring. (OCPD is required and is useful in preventing parallel strings from back-feeding each other in a fault condition.) William Miller At 11:08 AM 10/22/2012, you wrote: Maybe we should reduce our household voltage to 70V also, it would be

Re: [RE-wrenches] Ten K Solar

2012-10-22 Thread William Miller
Colleagues: The statement below is substantially true and is the skeleton in the closet for the PV industry. Smart combiners and automatic roof-top fault disconnecting means will correct this problem. William At 08:22 AM 10/22/2012, you wrote: Reading their statements make me wonder

Re: [RE-wrenches] Outback Mate3

2012-10-20 Thread William Miller
, all from my desk or smart phone. (The one missing function is checking battery water. A ranch hand can do that.) Can the Mate 3 do all of this? I am not certain, but if it can, I am going to start selling them to select clients. William Miller PS: I have had conversations with Outback

[RE-wrenches] GE 200 watt module failure

2012-10-17 Thread William Miller
anyone out there have any idea as to what may have caused these failures? Thanks in advance for any wisdom passed my way. William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985

Re: [RE-wrenches] Off-grid non-inverter battery charger recommendations?

2012-10-15 Thread William Dorsett
Good answer, Mick. I've got an old Trace DR 1512 with charger, and these people have a very small inverter plugged into a wall outlet (old cigar plug wall outlets were max'd at 60watts). So they don't do much with it but might want some ability to run AC loads. I'd sell it to them cheap and they mi

Re: [RE-wrenches] Off-grid non-inverter battery charger recommendations?

2012-10-15 Thread William Dorsett
s] Off-grid non-inverter battery charger recommendations? Check out Iota. Aaron Mandelkorn NABCEP Certified PV Installer Renewable Energy Outfitters Box 65 Salida, CO. 81201 (970)596-3744 reoso...@gmail.com www.reosolar.com On Oct 15, 2012, at 9

[RE-wrenches] Off-grid non-inverter battery charger recommendations?

2012-10-15 Thread William Dorsett
What brand recommendations do the group have for an battery charger to be plugged into a genset? Used to be Todd but at some point they lost favor. Thanks all. Bill Dorsett Sunwrights 1715 Leavenworth Manhattan, KS 785/539-1956 Home/Office ___

Re: [RE-wrenches] weak voltage

2012-10-14 Thread William Miller
keeping a charge. Now we insist on cleaning each flag and eyelet no more than 10 minutes prior to contact. William Miller At 09:41 PM 10/14/2012, you wrote: Hi wrenches, About 2 months ago, we installed an off-grid Sunny Island System. Here are the specs: 8.82 kW PV SunnyBoy 8000 2 x

[RE-wrenches] Old School 12V Independent System?

2012-10-11 Thread William Dorsett
A client has an old school 12VDC remote cabin, (SunDanzer fridge, Sureflo pump, 12VDC lights and fans) which she visits perhaps every three months. It isn't her interest to clean terminals, much less run the generator through one of her two days of country quiet to equalize the battery bank. The co

Re: [RE-wrenches] Trojan 2 volt L-16s

2012-10-08 Thread William Miller
~Ray: Yes, indeed. But--- would one defective cell bring about the early demise of the other two in the same case? If this occurs after one year of age, are we advised against changing out the one bad battery and required to replace all of them? More questions seem to occur the more we thi

Re: [RE-wrenches] Trojan 2 volt L-16s

2012-10-08 Thread William Miller
Tom: To answer your question below: because it would only be 2 volts. Best case: for a 48 volt system you need 24 cells, period. This way they are all in series and not separate strings. In separate strings, one string will be dominant and others will be subsidiary, over time. The benefi

[RE-wrenches] Trojan 2 volt L-16s

2012-10-08 Thread William Miller
be equally likely or less likely to have cell imbalances in the future? The only benefit I see is a reduction in string wiring jumpers. Comments? Thanks in advance. William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985

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