Hi, I have purchased the suggested hardware and had a response from the Heater manufacturer that simply says the Modbus this project is based on is identical to their product (my Heat Pump) which is a 2020 Norsup P24 originally mentioned in this thread using the Aquatemp connection.
My question therefore which I appreciate is answered above (albeit not absolutely clear in my mind) - Assuming I do away with the Aquatemp Wifi box, can I use the connection cables that originally went to that (pic below) to connect to the RS485? Thanks everyone
