3. Add a heating system
Click on the plus symbol to add your HDG (central-heating) boiler to your account. To do this, you need the so-called MAC address of your HDG Control XL heating controller. This can be found in the settings of the controller under "Settings >> Network".
In addition to the MAC address, Software1.54 requires a PIN to access the HDG WebControl. You can enter the individual PIN in the HDG Control Touch XL operating unit, under "Main Menu" >> "System Settings" >> "Network" >> par. 01-56 myHDG PIN or par. 01-57 myHDG Expert PIN. The PIN must not be 0000.