S
sinead
Installing a thermal solar panel today, it came with a Viessmman controller, unexpectedly, it came with two sensors, but neither were marked as high and low temp or collector and cylinder etc. One comes with a grey cable and no other markings, the other, in a sealed bag, has a black cable, again no markings, but its bag has a part no. 7170965, anyone able to identify these for me? regards to all, Brendan