ProfiLux 4: ATO (1-sensor) setup via GHL Connect 

How to setup and program a single-sensor Auto Top Off function via GHL Connect, using the example of a ProfiLux 4 controller.
Applies to the following products:
ProfiLux 3 / 3.1 T/N/A
ProfiLux 3 Outdoor
ProfiLux 4 / 4e
GHL Doser 2 / Maxi
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