Very new to solar but started purchasing items, not sure of the final specs of the whole system.

[jbkrntrprz]

That is very nice, I wish the flat land was closer. I would have really liked to have long arrays in that fashion. I do have a flat, but it's all 220+ feet from the house.

This is actually 5 smaller kits combined. You probably saw it for sale at SS. Also Wil Prowse was reviewing a different rack system on Youtube. Might check it out.

 

[kromc5]

I finished all the final touches on the arrays after dark, It's already over 19kw this morning, so that is not too bad.
Going to start marking the location for the following 30 panels today.

 

[kromc5]

Hit the first issue with a victron, it's been doing well the past few days.
I noticed it was getting close to the full on the watchman; the 450 never slowed down as the m8's went into bypass.
There is no error/alarm in the history; I even set everything to 48v, which still ramps to 100 percent.

 

[Brucey]

Hit the first issue with a victron, it's been doing well the past few days.
I noticed it was getting close to the full on the watchman; the 450 never slowed down as the m8's went into bypass.
There is no error/alarm in the history; I even set everything to 48v, which still ramps to 100 percent.

Try switching to the lithium preset will get rid of that lead acid equalization stuff. And set float to 47.8 or something

 

[kromc5]

Try switching to the lithium preset will get rid of that lead acid equalization stuff. And set float to 47.8 or something

I just figured it out, I went to make a test profile and that was replicated across all the controllers. There was a late night firmware
update for the cerbo. As I had not made any changes to the victron units at all in the last two days. After the firmware update the two mppts were synced to the last mpppt that is charging the new bank.

 

[kromc5]

I sat with the new banks for some time, watching them charge. The bottom bank had the largest delta in cell volts, no loose screws, and verified with the meters. Since it was 128, charging one per day would take too long. I am considering how to continue charging; charging is off, and I will check them shortly.

 

[Brucey]

I Sat with the new banks for some time, watching them charge. The bottom bank had the largest delta in cell volts, no loose screws, and verified with the meters. Since it was 128, charging one per day would take too long. I am considering how to continue charging; charging is off, and I will check them shortly.

60kWh per bank?

 

[kromc5]

60kWh per bank?

Right at 60kWh, with these two it will make 6 in total.

 

[Brucey]

I ordered some fuse holders and fuses for my midnite mnpv6 combiner box. Been nervous about having the PV cables direct connected to the terminals on the 450/100. This way I can transition to some fine stranded wire like Victron recommends. And then one day in the future when the hs19 or similar is available I'll be ready for the 800V generation

 

[kromc5]

I ordered some fuse holders and fuses for my midnite mnpv6 combiner box. Been nervous about having the PV cables direct connected to the terminals on the 450/100. This way I can transition to some fine stranded wire like Victron recommends. And then one day in the future when the hs19 or similar is available I'll be ready for the 800V generation

I'm also doing that since I'm rewiring the panels. I decided the breakers were too expensive to replace multiple times.
Now I have fuses in all the combiners, which are simple and much less expensive.

 

[kromc5]

Let them rest yesterday and set it to float at 54v this morning, but I must pull apart cell 4.
The top bank second picture is in better shape.

 

[kromc5]

I found these unistrut mounts on Amazon and decided to test them by laying the panels out just to be sure.
I need to cut a small extension for the unistruts as well, but I can fit all 30 panels in the last spot on the side.

 

[Brucey]

I'm also doing that since I'm rewiring the panels. I decided the breakers were too expensive to replace multiple times.
Now I have fuses in all the combiners, which are simple and much less expensive.

Are you using the Midnite surge protectors in the combiner boxes? I guess ideally one 600V DC model per (combined) string?

 

[kromc5]

Are you using the Midnite surge protectors in the combiner boxes? I guess ideally one 600V DC model per (combined) string?

I have them in every combiner box per string; I put breakers on all the single 6s arrays but wanted to research to
research if that is sufficient.

 

[kromc5]

After syncing, I read the manual several times, but the feature was not thoroughly explained. I ordered the direct cables that evening and posted a question on Victron to ensure I was not overlooking something. Snoobler responded to my question on the victron community.
Put two on direct and left one on ve.can.