For some reason, I’m not able to edit my post now.
So, it is solved and on terminals 41/44 I’m able to communicate with ESP32 and OpenTherm adapter.
Can you explain how you did it? I’d like to connect my Immergas Victrix Omnia boiler to Home Assistant.
What specific gateway did you use? Could you please provide the details? I have an Immergas Victrix furnace and would also like to connect it to the HA. I’m currently using the CARv2 controller.