MPP LV6548 250v

[Ronnie B]

I purchased a MPP LV6548 and 24 325W panels to get maximum wattage. When I figure VOC for my low temp I go over max voltage (297.6V). I calculated the suggested panels they use in the manual, they also go over max voltage (278.7V). Maybe I am missing something. Do I drop to 5S2P instead of 6S2P? Panels are 325W VMP 36.2 IMP 8.98 VOC 43.6 ISC 9.42 Coeffientcy .37 Low temp for me is 10F

 

[Texican]

yes, do a 5s2p. how close to 250v are you at 10F ?
I have 2 of these inverters using 250w panels in 6s2p
almost impossible to get much over 6000w total even though they claim up to a 8000w max input

 

[Ronnie B]

297

yes, do a 5s2p. how close to 250v are you at 10F ?
I have 2 of these inverters using 250w panels in 6s2p
almost impossible to get much over 6000w total even though they claim up to a 8000w max input

297V by the calculator I used. i can use the unused panels on my cyboinverter for hot water.

 

[Ronnie B]

5S2P puts me at 248V @ 10F.

 

[Texican]

5S2P puts me at 248V @ 10F.

thats too close if you ask me. how many days might it get even close to 10F ?
if just a few times a year maybe disconnect the panels ?

 

[Ronnie B]

Those cold days are few for my area. Disconnecting panels ahead of those days would work.