I have this unit. Really like it. I'm running split phase as well and it runs my 240v well pump no problems. Watchpower software is pretty helpful as wellCheck out DavidPoz review: Split-Phase Inverter, LV5048, Test Solar, Off-Grid
They are originally from Taiwan, but I think they have a dealer in the USA. Easier to return for warranty if you are there.
Go for option 2, max 2 in series, you should avoid getting near max voltages as its not safe. Also, your Vdc cant be lower than 30V or it wont start charging, so 2 in series will get you between 30-115Vdc and thats what you want for your SCC to work properly and safe.Re: The MMP's All In Ones: I like they produce pure sign wave ac voltage; like the economical cost, plus hearing good reviews (via by Will P, and then this forum)
Re: Solar Panel Configuration Option for the made in Taiwan MPP (brand name) LV2424 All In One: I purchased two LV2424s w extras to go for 240 vac split phase); and I have two different configuration options for the solar panels I purchased (both configuration options are within the LV2424's specs).
Seeing some folk in this thread have history with MPP's line of All In Ones; I wonder what the opinions might be for my best choice of solar panel configuration:
I have 6 solar panels w Specs: 345 watts; Open Circuit Voltage 46.59 vdc / Voltage at MPP 37.93 vdc /Current at MPP 9.10 amps.
My MPP's LV2424 Specs for Solar Panel Input = MPPT Range @ Operating Voltage = 30 - 115 vdc ;
... & Max. PV Array Open Circuit = 145 vdc
Which Solar Panel Configuration would you think is Better:
Option #1): I could (go for max volts @ less amps) parallel two sets of three solar panels wired in series: for running about 113.79 vdc @ up to 18.2 amps to my LV2424 All In One's MPPT. Potential Advantages: Less amps make better use of wire cable size /with less volt drop (my run length is only 30 - 40 feet / likely on 8 awg copper). Potential Disadvantages: Solar Panel config producing 139.77 open circuit voltage is Close to the 145 oc v spec.of LV2424; and the potential 113.79 vdc from solar panels array is very close to the LV2424's MPPT max with specs (30 - 115 vdc).
Option #2) - or - I could (go lower volts @ higher amp) parallel 3 sets of 2 solar panels wired in series : for running about 78 volts @ up to 27.3 amps to my All In One's MPPT. Potential Advantages: Less volts is closer to battery voltage, while not so close to max ocv of LV2424 specs. Potential Disadvantages: Higher amps need bigger wire size for both safety and less volt drop (my run length is only 30 - 40 feet / likely on 8 gauge copper wire).
Both Solar Panel Configuration Options match the MPP LV2424 specs!
Which one would you think might be my Best Choice? ...and Why?
3 panels in series at 46.59 volts open circuit x 3 = 139.77 volts on your 145 volt max input SCC.Seeing some folk in this thread have history with MPP's line of All In Ones; I wonder what the opinions might be for my best choice of solar panel configuration:
I have 6 solar panels w Specs: 345 watts; Open Circuit Voltage 46.59 vdc / Voltage at MPP 37.93 vdc /Current at MPP 9.10 amps.
My MPP's LV2424 Specs for Solar Panel Input = MPPT Range @ Operating Voltage = 30 - 115 vdc ;
... & Max. PV Array Open Circuit = 145 vdc
Which Solar Panel Configuration would you think is Better?
I had the idea option 2 was my best choice when I first looked at my options. I then got opinions to go with higher voltage. One super experienced solar buddy told me voltage is king, plus MPPT units can take 10% or more on top of their ratings. ... But that is from working w top end grid tie equipment. Knowing this is an economically priced All In Ones from Tiawan, the feedback here helped me I decide to for sure go with the mid range/ lower voltage option, and not right up near max limits. Thanks for feedback.3 panels in series at 46.59 volts open circuit x 3 = 139.77 volts on your 145 volt max input SCC.
Thats too close if you have cold temps.
Ask MPP if they blow up if over volted.
From when I messaged them about my setup, they seem to be ok with over wattage, but not over voltage. There is some wiggle room, but I'd ask them to make sure.3 panels in series at 46.59 volts open circuit x 3 = 139.77 volts on your 145 volt max input SCC.
Thats too close if you have cold temps.
Ask MPP if they blow up if over volted.