Technical information

37
CLEANING OF HEAT EXCHANGER
Cleaning of the heat exchanger must be carried out by authorized personnel and is governed by specific regulations. As
a guideline cleaning should take place at least once a year, at the beginning of the winter.
For this operation proceed as follows:
• Remove burner (1) from its housing after having disconnected the gas solenoid valve unit;
• Remove upper panel (2);
• Remove inspection door (3);
• Remove conveyor (4);
• Brush the exchange elements (5);
• Remove any soot which may have fallen from the exchange elements into the combustion chamber (5);
• Clean all the external surfaces of the heat exchanger;
• Reassemble everything, paying particular attention to tightness and substituting packing if necessary.