Replacing an Automatic Window opener question with a video for you to see

[golfballlogos]

please see video i made...are the new automatic opener bits wrong ? do i need the shorter ( old) one ? thanks see video

any help appreciated..is there anything i need to do to the new one to get it working ok ? im told they have wax inside that when it gets hot the wax melts and expands and thats what causes the bar to be pushed up thus opening the window

 

[golfballlogos]

old automatic opener ( black bar ) is from a Crittall branded greenhouse that’s at least 20 yrs old I was told by the seller, on the black bar written in black in tiny writing is .. 2021 ORBESEN Teknik DK ( I think that’s what it says I had to use magnifying glass and a torch to try make it out ! anyway does that help ??