radar1967 Hello. I had a 4.6 installation on a 4.4 ktlx inverter. I read various opinions and advice, but I listened to my friend briefly and explained everything to me.
Apparently, it is impossible to move higher than 6.6 from my version, but this is not true and for a month it has been almost 8 kw without any problem. I also made a fan, which reduced the temperature to 55 degrees at maximum production, Panels added to 7600kwp at the moment and, surprisingly, the inverter got a kick in the sun for December, not too strong slaps of 8200 or more.
2 strings 12 and 8 panels 380 w Starts without a problem for 4.4, of course, like snow, I try to gently sweep it away with a broom because the panels are on the roofs of a residential house, but not too sharp and it is possible to enter.
The installation was assumed by a company with a concept and everything was done on top-shelf security. I also consulted the power change on the jumpers, which they confirmed that it works and runs without a problem because it is the same inverter up to 10kw supposedly. My observation is very interesting how I increased its power, Sofar stopped pressing the temperature to 60 degrees. Now, with additional cooling, the fan is set so that it does not allow the temperature to exceed 55 degrees and, as I wrote, with such power of the panels it presses over 8kw. You do each adjustment at your own risk, because you have to open it at the front. There is no seal, but there is a trace of production on the card and in the event of a failure, they may not accept the warranty.
Personally, I am not worried about it, I will replace it with a new one if they do not accept the warranty.
greetings
Apparently, it is impossible to move higher than 6.6 from my version, but this is not true and for a month it has been almost 8 kw without any problem. I also made a fan, which reduced the temperature to 55 degrees at maximum production, Panels added to 7600kwp at the moment and, surprisingly, the inverter got a kick in the sun for December, not too strong slaps of 8200 or more.
2 strings 12 and 8 panels 380 w Starts without a problem for 4.4, of course, like snow, I try to gently sweep it away with a broom because the panels are on the roofs of a residential house, but not too sharp and it is possible to enter.
The installation was assumed by a company with a concept and everything was done on top-shelf security. I also consulted the power change on the jumpers, which they confirmed that it works and runs without a problem because it is the same inverter up to 10kw supposedly. My observation is very interesting how I increased its power, Sofar stopped pressing the temperature to 60 degrees. Now, with additional cooling, the fan is set so that it does not allow the temperature to exceed 55 degrees and, as I wrote, with such power of the panels it presses over 8kw. You do each adjustment at your own risk, because you have to open it at the front. There is no seal, but there is a trace of production on the card and in the event of a failure, they may not accept the warranty.
Personally, I am not worried about it, I will replace it with a new one if they do not accept the warranty.
greetings
