Mauritius B

Mines are installed in a concrete basement with a 90min fire resistant door. Smoke detector is also in place. If anything catches fire, only the basement will be damaged and I can sleep peacefully every night

It is not microinverters what you have to look for. You need optimizers. it's not the same thing. Optimizers work on low voltage DC while microinverters work on high voltage AC. SolarEdge-Panel Solar fotovoltaico MPPT, P320-5NC4ARS optimizador de potencia, estabiliza el voltaje para mejorar la capacidad - AliExpress 1420

Why not using standard panels and optimizers on shaded ones?

The low production due to partial shading can be mitigated with optimizers installed on the affected panels.

The batteries should work with the SNA5000. Just check protocol and cable pinout. luxpower-compatible-list（LXP-3-6KSNA-ACS3600）230826.pdf (luxpowertek.com)

You need to check configuration parameters on the inverter to select power supply and battery charging priorities. Maybe they are not properly configured. Read them and post the full list here.

Same story for me. I had a faulty unit and there was no solution until I contacted Pylontech directly. Then, the vendor suddenly reacted and I got a replacement without a single question.

I believe you will buy a new one...

TH16-like: eWelink -interruptor inteligente TH16, Control inalámbrico de temperatura y humedad, 16A, WiFi, Compatible con Alexa y Google Home - AliExpress 44 Comm cable for pylontech: Cable de comunicación para consola de batería de litio US2000C US3000C US5000, Cable de depuración Serie USB prolífico RS232 a RJ45 8P8C - AliExpress 7 Sonoff 4ch: Sonoff-interruptor inteligente inalámbrico para el hogar, dispositivo de 4 canales, R3/4CH, con WiFi, 4 entradas, temporizador de cuenta atrás, Control remoto, automatización del hogar a través de la aplicación Ewelink - AliExpress 44 Smoke detectors: Sensor Detector de humo inteligente con WiFi, alarma de seguridad para el hogar, protección contra incendios, certificación EN14604, Tuya, 80DB - AliExpress 30 Intelligent power meter & switch: EWelink-medidor de energía inteligente, vatímetro monofásico de 1P con carril Din, WIFI, consumo de energía en kWh, con Alexa y google para Smart home - AliExpress 44 1P Din Rail WIFI disyuntor temporizador inteligente interruptor relé Control remoto por aplicación EWeLink Smart Home compatible con Alexa Google - AliExpress 13 Temperature and RH control: es.aliexpress.com/item/1005001928457738.html?spm=a2g0o.order_list.order_list_main.945.163a194dfCx8NS&gatewayAdapt=glo2esp No issues at all with these orders.

I use several. I usually choose supplier based on price. Delivery time depends on origin. If the goods are coming from Chine, it takes about 3 weeks. If the supplier has a warehouse in Europe you can get items in 5-7 days.

For Sonoff and Sonoff-like things, Aliexpress

These guys have a nice range of conversion kits. https://www.electrogenic.co.uk/

In the northern hemisphere it is not much better. In my area, 2728wh/m2 today, 2935wh/m2 tomorrow and 2932wh/m2 on Saturday, just starting the summer 😆 Weather is crazy...

Very nice!

What would be the right order to update? First MCU and then Main or opposite. I have a standard King running 2.66a on MCU and 71.97 on main.

That is going to be complicated becasue it is a high voltage mppt. It won't work under 90v. You cannot change that by software. You will need to rearrange panels to reach minimum voltage.

A minimum water flow is necessary to keep the geyser on. Maybe the water is so hot that hot water flow is too low in the mixer tap to keep gas burning. Try to set water temperature to a lower setpoint, like 50deg C or so and see if behaviour changes. This will force you to use more water from the hot circuit to have the same temperature out from the mixer tap.

another option for sunny places: Solar air heater Heating Panel Dehumidifier Heat Pump Ventilation Conditioning | eBay

It is important to know if the system has ever worked or not. If it is a sudden failure, maybe any of the comm ports is damaged on the inverter or the battery.

Write an email straight to Pylontech service dept. explaining the problem and tell them battery s/n. Distributors are usually making decisions on warranty themselves. Pylontech will contact the distributor directly and they will honour the warranty. Did you register your batteries on Pylontech website? Sign Up battery-Service-Pylon Technologies Co., Ltd.

This is the nominal power value under STC (Standard Testing Conditions) meaning 1000w/m2 and 25ºC. If the irradiance is lower or the temperature of the cells is higher, the panel will not produce the same power. Usually, you never get maximum power in summer because the cells get very hot. It is easier to get maximum power in spring and fall or just after a cloud edge. Sometimes you may even see power values exceeding the maximum nominal if the weather is cold and sunny.

Volta Solar Panel Mounting Eco Rail 5.5m (vebase.co.za)

I am another Fluke guy with a 30 year old 73 model. May I suggest also the possibility of using a shunt resistor to measure ISC?

Why only the US5000 went into alarm state? what about the US2000's? what was their SOC?

Only master battery has DIP 1 on and the rest, all DIP's off