Yes. Open window detection is advanced function 7 and can disabled and enabled via the advanced settings menu. This function is enabled by default.
To access, navigate to the advanced functions menu by holding down the tick key until you reach the time setting screen, then holding down tick for a further five seconds. Select the function you want to adjust with the – and + keys, press tick to confirm and then > to modify.
To leave the menu, select the “End” function and press tick to confirm. See full guide to the advanced function menu attached.
https://www.electricradiatorsdirect.co.uk/manuals/haverland/TOD-Simplified-Programming-Guide-2020.pdf
To access, navigate to the advanced functions menu by holding down the tick key until you reach the time setting screen, then holding down tick for a further five seconds. Select the function you want to adjust with the – and + keys, press tick to confirm and then > to modify.
To leave the menu, select the “End” function and press tick to confirm. See full guide to the advanced function menu attached.
https://www.electricradiatorsdirect.co.uk/manuals/haverland/TOD-Simplified-Programming-Guide-2020.pdf