stop supplying fuel in case of suspicion of an emergency situation;
block the flow of gas if the smell burner goes out;
stop the gas supply to the main burner in the absence of water in the heat exchanger;
stop supplying fuel in case of suspicion of an emergency situation;
block the flow of gas if the smell burner goes out;
stop the gas supply to the main burner in the absence of water in the heat exchanger;
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