New Type of Float Switch?

Saw this today in new construction (can’t get my pic to load so I got this off of the internet).

I’ve never have run across this type of switch before. When I pushed the “test” button, I was expecting the HVAC unit to cycle off. It did not. Should it have?

Any thoughts?

Once again, thanks in advance.


Thanks. Just goes to show how big the internet is. I looked all over for installation instructions.

I’m still missing one piece of information: if you push the test button, shouldn’t the unit cycle off?