3. add heating
Click on the plus symbol to add your HDG boiler to your account. To do this, you need the so-called MAC address of your HDG Control XL heating controller. You can find this address in the settings of the controller under "Settings >> Network".
In addition to the MAC address, a PIN is required according to Software1.54 for access to HDG WebControl. You can set 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.