I have some electrical windows opener, that I wants to fit in my greenhouse, and control them with a temp. controller.
The window motors are 24V, and I have not been able to find a controller, with seperate heat/cool output for 24V. Only in 110-220v versions.
So, to avoid having to 24V power supplies, as it requires with the 220v solution, I would like to find a way to do this with my 24V temp. controller.
As you can see, I can't switch polarity this way.
How can I do that? Guess I need a relay for it?
The window motors are 24V, and I have not been able to find a controller, with seperate heat/cool output for 24V. Only in 110-220v versions.
So, to avoid having to 24V power supplies, as it requires with the 220v solution, I would like to find a way to do this with my 24V temp. controller.
As you can see, I can't switch polarity this way.
How can I do that? Guess I need a relay for it?