I’d love to see how you have this set up!
New 10kw NHX AIO From Watts247
- Thread starter Kornbread
- Start date
niptuck170
New Member
Thanks. I was trying with the ferrules on. But the hardest part just seems to be bending them properly and tight enough. Seems like you'd have to put a hard kink in the line.
Mine looks like Mike’s post before. If you leave enough length you can pull the cable out and loop it back in. Not so much of a kink that way.
Gavin Stone
Solar Wizard
I have fit various types of wire in the terminals. 6 awg fine stranded wire with a ferrule as well. It was just more difficult to get in there. Crouching down and seeing the terminal shape does help. I used needle nose pliers for extra leverage on the wire.
The newer style NHX has a lot more room to maneuver in the wiring box it looks like.
The newer style NHX has a lot more room to maneuver in the wiring box it looks like.
Main panel is on GRID side of inverter, small panel is on LOAD1 and is backed up with grid down.
Array is 30 panels, 390 watts, feeding 3 strings of 10.
Two EG4 14.3 KWH batteries.
Fairly straightforward. We made our own battery covers since the wall bracket and stacking factory system is difficult if you want to change a battery.
The weakest part of the system are issues with the inverter, the fried relays being one of them.
Mike C.
That looks great
I’ve been using a NEMA 14-50P Male to SS2-50R Generator Extension Cord 125V/250V RV Generator Power Cord Twist Lock Connector connected to the grid in on the inverter to connect to my garage sub panel that has a 14-50 plug for charging my ev. I’m thinking the inverter didn’t like me plugging and unplugging the grid in. But yours did it even though you seem to be wired straight into your panel…
JohnGyver
Solar Enthusiast
I love the space and how close everything is together... and under the roof. That is a huge plus when doing solar. My setup is outdoors, which I took the route of building a custom "tiny" shed in the limited space that I had to work with and building the solar system around it. Nice layout too btw!
I see the battery top covers... a very nice custom touch to the setup! It's very impressive how perfect they fit and look! Very slick!
I have been running the NHX-12K now for just over a month... in that time I started with one Ruixu Lithi2 wall battery, then added a second just recently with only 12 Hyperion 400/500 watt bifacial solar panels. We are already seeing a huge impact to our bill as we are taking advantage of a rate plan that offers 'free nights' between 9 pm and 7 am (Houston area), using that time to charge our two EV's and now the two 16kwh batteries. I have also setup the inverter Time Of Use (TOU) settings to charger the battery between 9pm-7am and then use the battery at all other times as needed. My solar panels recharges the batteries mid-day as well. So far, so good... the NHX-12K has been very solid without any noticeable struggles on powering most of house loads... actually all of them including my well pump and 5-ton AC with soft start, minus our EV charging which is done only on-grid at night. When I was looking at inverters I was 100% sold on the NHX-10K as the best "bang for the buck" inverter out there without spending both arms and both legs. Then the NHX-12K dropped just before I was ready to purchase and I went that route, still sticking with the NHX series. If you get the option of a refund and a repurchase, I would suggest taking a good look at the NHX-12K as an option. Even though my time with ours has been short, everything about it has just worked as planned out of the gate... even though I was a huge bundle of nerves in the wiring phase headed towards commissioning it! I probably should have doubled up or tripled up on my blood pressure meds the week that led up to flipping that switch! But when I did it just came on and went to work... and hasn't complained a bit so far.
I hope that Ian @ Watts247 and Amensolar/Megarevo get your NHX-10K addressed, at the very least send you a replacement board. I of course have that same fear of something happening to ours and having to get neck deep into the inverter and be down for an unknown period of time. I think it would be worth the effort to figure out what that relay controlled and see what the culprit was. Would a whole home SPD helped prevent it? A solar SPD maybe as well? That way you can get it back up and running with any additional support to keep the issue from reoccurring.
Anyway, good luck on getting it back up! I hope it all works out for you.
Best regards,
John
Is this really what the display looks like?
Let us know how it goes with Ian and warranty work.
Osmethne
Solar Enthusiast
I'm curious about the warranty situation too. It was my understanding that Ian agreed with the manufacturer to take on the responsibility of the warranty work. Hopefully if you have a broken unit he should just let you swap it for a good one.
this
slightly improves my attitude towards PGESo I got the MK energy batteries with the Nhx 10, but Gavin stone had trouble getting comms to work in his video. I tried rs485 from battery to inverter on pylontech which is mentioned here and in the video as well as voltronic which is mentioned in the battery manual, but no dice. Anyone have any suggestions? No word on warranty or replacement yet…
Okay so I tried CAN comms on the battery to rs485 on the inverter and it works…will update if it drops lol I’d be happy to unscrew the bottom and switch it from rs485 to the CAN port but it was easier to just unplug it at the battery and try the CAN port lol
Gavin Stone
Solar Wizard
The MK’s work great with CAN communication, Pylontech and the inverter set to CAN. Just verify your dip switches are set correctly. I think the issue I had originally was trying to get the EG4 wall mount to work with the NHX. Although it’s been a while so I can’t recall exactly.
Thanks @Gavin Stone! Yeah, I had the dip switches and pylontech correct. It’s the rs485 port from battery to inverter that doesn’t communicate. CAN port of battery to BMS port (which is both CAN and rs485) of the inverter is the ticket! Oddly enough the batteries didn’t seem to care if they were set to rs485 or CAN lol it communicated on either setting (I have it on CAN now though). I tried connecting battery CAN port to inverter CAN 1, but comms failed.
Looking good!
I know this was a while ago, but I thought you or others might find this useful. If you go to Solarman's website(solarmanpv.com) and login, there is an option to remote control the NHX inverter. You can read and set parameters. Choose Device on the left, then in the drop down menu called More on the right there is a selection for Remote Control. Once on the Remote Control page, choose a group of parameters on the left. Then select Read in the lower right corner. Set will send the new settings to the inverter.
Firefox browser didn't work. I had to use Chrome.
Attachments
Be careful with this feature. There are a lot of variables to control, and it doesn't seem like the inverter LCD UI and the website line up well. It looks like there might be some inconsistencies between the two interfaces.
When I adjusted what I thought were relatively minor things, the inverter started acting strangely. Watts247 advise me not to use the remote and only configure things from the LCD panel, so that is what I did.
The software, both on the unit and the Solarman website, are rather unpolished, IMO.
Mike C.
I haven't tried a lot of them, but the few I read agreed with the UI on the inverter. I sent them back down through the web interface and they were correct on the inverter.
What parameters caused instability on the inverter?
I thought this would give you the ability to change things from your remote location.
Were there problems changing settings through the local connection of the phone app also?
What parameters caused instability on the inverter?
I thought this would give you the ability to change things from your remote location.
Were there problems changing settings through the local connection of the phone app also?
Last edited:
I don't know.
I suspect there were registers the website was touching that didn't want to be touched.
I didn't think I changed anything meaningful.
It may have been firmware version related, too.
Well, give it a go and let us know.
Mike C.
Did you try changing settings using the local connection in the phone app?
I’ve done this. Changing settings with the local connection works well and matched up with the settings Ian put out on his video. Same with the videos from @Gavin Stone and @Adam De Lay
@Kornbread @Osmethne @mciholas @Gavin Stone @Adam De Lay
or Has Anyone try to AC couple with NHX-10k ? maybe with microinverter system or other inverter ?
I saw @Tayne diagram using enphase thru the enphrase controller but i got lost with that wiring . I thought AC couple is via the GEN port.
or Has Anyone try to AC couple with NHX-10k ? maybe with microinverter system or other inverter ?
I saw @Tayne diagram using enphase thru the enphrase controller but i got lost with that wiring . I thought AC couple is via the GEN port.
Gavin Stone
Solar Wizard
I don’t believe the 10k supports ac coupling. Unless it was updated via firmware. I know the 12k does though.
Sorry I have been MiA since I got things working. I believe the NHX does support AC coupling with a different firmware. However when talking with others they all recommend the NHX-12. My NHX-10 was actually a SunGold version of the same box. It died and I sent it back for a refund. Then I bought the NHX-12 from Watts247. I tried several configurations, but had no luck with AC coupling. Till I chatted with others who got it working on other inverters. I was thinking I connect my IQ8/solar directly to the NHX. I was wrong. You need a separate combiner box. Then connect this box to the NHX
Similar threads