Re: [RE-wrenches] dual channel charge controllers?

Hi Jay, It's a recently converted to 48 from 24v system with BI Hi LFP batteries. And I'd like to see all pv's online, hence my need for an up-to-date controller(s). Old controller (it replaced a Heliotrope PWM unit, man that's taking me back) Is actually an OB MX60, but too old for a hub port. New

Re: [RE-wrenches] wire management on Qcell AC module

Except if it is UL listed and tested as part of the assembly. Haha. I seriously don't that happened, but technically... Bottom line, a manufacturer should supply guidance on this. On Thu, Jun 2, 2022, 1:02 PM Dana Orzel via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Tape is not ap

Re: [RE-wrenches] wire management on Qcell AC module

Please note we updated 2020 NEC 690.31(C)(1) to allow 24" between securing/supporting points for PV cable, and removed the problematic reference to 334.30. The change was made because as you all know there is not always a way to secure wires within 12" of a box on the back of a PV module. Of cours

Re: [RE-wrenches] wire management on Qcell AC module

Tape is not approved as a wire retaining device as far as I can find in the NEC :-] Dana Orzel - E - d...@solarwork.com - C - 208.721.7003 From: RE-wrenches On Behalf Of Jerry Shafer via RE-wrenches Sent: Thursday, June 2, 2022 9:40 AM To: RE-wrenches Cc: Jerry Shafer Subject

Re: [RE-wrenches] wire management on Qcell AC module

G'day All I rarely do roofs but I can tell you with my pole, ground or DAT projects it's nearly impossible to cover the modules with a screening product for safety reasons. I refuse to use the mid panel j-box modules. I'm not one for boycotts but just use the old school modules with the j-box moun

Re: [RE-wrenches] wire management on Qcell AC module

These modules are designed for racking w/o MLPE and the rest of the world that doesn’t use MLPE. And code in both 300.11 and 330 ish say that wires need to be supported between 6” and 12” ( I’m not sure which is the correct one to use, I’ve always been told to use 12”) from any box or termina

Re: [RE-wrenches] dual channel charge controllers?

Hi Kirk You didn’t give a lot of info but I don’t think there is a product that meets your requirements. I’m guessing its either 24v or 48v system with with a C40 controller. Personally I’d leave the old system as 20 year old modules are not cost effectively worth messing with. And if you

Re: [RE-wrenches] wire management on Qcell AC module

I didn't snap a photo yesterday, but next week I will certainly take some photos, and report back on what we figure out. Definitely sounds like tape is not a permanent solution. Cheers, Dave On Thu, Jun 2, 2022 at 11:39 AM Jerry Shafer wrote: > Regarding the tape on the back sheet > I have seen

Re: [RE-wrenches] wire management on Qcell AC module

Regarding the tape on the back sheet I have seen Novis installers keep the tape to secure the modules and I have also seen it with the tape stll attached to the wires laying on the roof so in my humble opinion the tape is for shipping only and is not to be used as a wire management system. Jerry NA

Re: [RE-wrenches] wire management on Qcell AC module

Wrenches: Consider the vector forces , even with just the weight of the wire itself. Suspended leads are going to strain the connection points. I suggest this approach is not a good solution. William Miller Solar 17395 Oak Road, Atasc

Re: [RE-wrenches] wire management on Qcell AC module

Dave: Could you send a photograph, please? Indeed this problem has been addressed before. The only solution presented was to add jumpers to lengthen the leads so they could be clipped to the module frames. This method is sub-optimal due to cost and the adding of potential failure points.

[RE-wrenches] Schneider Inverter Unbalance

Hello Wrenches, A pair of Schneider XW Pro inverters will not share the load. We had used a configuration tool, with the help of Jose at tech support, and temporarily got the pair to balance. We adjusted the output voltages so that the inverters would share the load. Later the inverters star

Re: [RE-wrenches] wire management on Qcell AC module

I just got a quick look at them on the pallet when they arrived on site yesterday. We will be starting this installation next week, so I can report back with more details then. Cheers, Dave On Thu, Jun 2, 2022 at 9:47 AM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote:

Re: [RE-wrenches] wire management on Qcell AC module

That's concerning. We just added these to our product offerings. I reviewed the QCell installation manual for this product and there doesn't seem to be any guidance on the subject. Are the DC leads tight enough when connected to the microinverter that they would not sag enough to touch the roof, o

[RE-wrenches] wire management on Qcell AC module

Hi All, I just got some of the Qcell 360w AC modules that have the Enphase microinverter factory applied to the back. The module is the half cut cell type with the DC leads coming from either side of the middle of the module. The modules come with the wires taped to the back of the module. If you