- Enables the technician to quickly verify if the electrodes are properly positioned / - Allows the technician to conveniently adjust the electrodes to the Riello Specifications: 5mm above the center of the nozzle, 2.25mm in front of the nozzle and a 4 mm gap between the electrode tips (The burner manufacturer instructions permit position the electrode tips from 2mm to 2.5mm in front of the nozzle) / - Sets the electrodes on the drawer assembly with or without the turbulator disc (retention head) on