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Axpert 5k Mk3 high temperature


JT1

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Can anyone please advise if temps attached is normal for the Axpert 4k mk3 inverters? I had 4 inverters in pararallel for 4 years model AXPERT 5K/5000VA but 1 failed recently and I replaced all with 4 x axpert 5k mk3 units. The previous models ran 55C max with around 50% usage while charging batteries. Attached is ONLY charging batteries and temps on inverters very high, had almost no load on the inverters. Ambient temps were around 30 degrees Celcius. When batteries were fully charged and usage around 30% the temps on the 5k mk3 are around 55C. Could airflow at the bottom of inverter improve temps? Previous inverters were mounted on the exact same position and was fine  it rarely went over 50C.935770195_Screenshot_20211114-113922_MQTTDash.thumb.jpg.3107cf3ae7b1877d9e2148dc1ae2c052.jpg

20211112_153410.jpg

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Thanks for the reply, it makes sense on the higher voltages. Yes I rewired DC Db's to have 6 pv panels in series where it was 3 before per breaker. Total 8 sets of 6 pv panels, 2 sets of 6 panels in parallel on each inverter. Took a while to figure it out lol. Solar Pv panel icon was just flashing on 3 pv panels in series. After I checked the manual it showed 120Vac min, 450vac max. Input around 205-220v now with 6 in series.

Edited by JT1
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Thanks for the compliment. I use ICC on a pi and the screenshot is mqtt dash on android with the variables on each block just linking to ICC variables and inverter mode trigger. Still have to do some trunking on some cables on setup tomorrow but then sorted. I added thicker trunking to ensure on failure cables are easily rerouted in future. Attached was during my troubleshooting and replacement lol.

20211111_075308.jpg

Edited by JT1
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@dropkickWill use an old android 10" Tablet for sure and permanently on charge for a display with mqtt values. Will be a lot cheaper. Can also fit more counter values on a larger display than currently on my phone without scrolling. I Mostly check the phone if bad weather and then switch over to utility if batteries is low to charge from utility, especially before load shedding periods in the area. For remote switching between utility/solar I just configured a ddns record and forward mqtt on port 1883 to the pi via router. The mode switch button is Inverter/SetMode on ICC Variable, not a lot of people use ICC to max potential.

Screenshot_20211114-221539_MQTT Dash.jpg

Edited by JT1
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