Re: [RE-wrenches] SDHW collector covers

2012-10-26 Thread Ken Schaal
I'll second that suggestion--- greenhouse shade cloth is cheaper, and lasts as long. shading coefficient used depends on how much solar gain reduction you need. For my office radiant floor collectors-- ground mount, recycled Reynolds aluminum, anti-freeze --- I cover completely with white, re

Re: [RE-wrenches] Solar Direct DC Brushless Surface Pump 48V

2012-10-26 Thread Jason Szumlanski
Energy, size, and maintenance were cited reasons. The customer makes electric traction drives for locomotives, so let's just say he understands what he wants. Must be brushless... *Jason Szumlanski** * *Fafco Solar* On Thu, Oct 25, 2012 at 5:16 PM, Allan Sindelar < al...@positiveenergysolar.com>

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

2012-10-26 Thread Drake
Through a strange set of circumstances, I found a way to equalize batteries with an Iota charger. My DLS 45 was borrowed on a couple of occasions. I made the mistake of telling the borrowers how to adjust the voltage through the potentiometer. Predictably, when I needed the unit, the pot had

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

2012-10-26 Thread larry
Hi Drake,Good find. We always adjust the Iota's for different types of batteries. Since this one is only used for back up purposes with a generator, you can leave the jumper in and always run at 15.7 volts. Once the voltage reaches that point, you will be +/-90% charged. This will not harm a floode

Re: [RE-wrenches] Enphase and Romex

2012-10-26 Thread benn kilburn
Glenn/Jason, So you wouldn't use romex to feed an exterior outlet on an outside wall, or to any outside lights??? Canadian Electrical Code's (CE Code) definitions… wet location -a location in which liquids may drip, splash, or flow on or against electrical equipment. Damp location –an exterior or

[RE-wrenches] Wattsun Tracker Foundations

2012-10-26 Thread Ryan Harkins
Hey Wrenches,I planning some AZ-225 tracker installs, and I would like to avoid full excavation for slab/pier type and opt for the drilled pier option.  The pier is supposed to be 30-36" diameter and 9.5' deep.  This would require a terex reedrill or similar rig.  If you know of a firm with that eq

Re: [RE-wrenches] Enphase and Romex

2012-10-26 Thread Jason Szumlanski
Benn, Wet location is defined, but there are also specific elaborations throughout the code. As an example, for an enclosure mounted below grade, the interior of the enclosure is also considered to be wet. There is nothing specific in the code that defines the interior of a junction box mounted in

Re: [RE-wrenches] Enphase and Romex

2012-10-26 Thread Ray Walters
Thanks Benn, I've also never seen anyone switch to UF, just to wire to an exterior outlet mounted directly on an exterior wall of a home. Further, the box is usually indoor rated(if it's in the wall) and only the exterior cover plate is weather proof. Both UF and NM have THHN inside of them,

Re: [RE-wrenches] Wattsun Tracker Foundations

2012-10-26 Thread Ray Walters
Did you get soil tests done? That seems really deep. We have strong clay soils in New Mexico and Colorado, and I've always gone 4 ft in, and 6 ft out. Never an issue, with wind gusts that have blown debris and broken modules. No footing trouble though. I could see in a loose, sandy soil

Re: [RE-wrenches] Enphase and Romex

2012-10-26 Thread Max Balchowsky
We've got dozens of installs here, and more recently in Hawaii with Romex coming out of the bottom of a soladeck into the attic space, just make sure the Romex in the attic is labeled and it's sized correctly   Max Balchowsky Design Engineer SEE Systems 1048 Irvine Ave Suite 217 Newport Be

Re: [RE-wrenches] Enphase and Romex

2012-10-26 Thread Glenn Burt
300.9 Raceways in Wet Locations Above Grade. Where raceways are installed in wet locations abovegrade, the interior of these raceways shall be considered to be a wet location. Insulated conductors and cables installed in raceways in wet locations abovegrade shall comply with 310.8(C). “Sect

Re: [RE-wrenches] Enphase and Romex

2012-10-26 Thread Ray Walters
So if the Romex is loaded with THHN/THWN (damp/wet rated), and no where does the outer covering of the Romex itself get exposed to the wet location, that should be sufficient? Ray Walters On 10/26/2012 7:45 PM, Glenn Burt wrote: 300.9 Raceways in Wet Locations Above Grade. Where raceways ar