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3 SPECIAL FUNCTIONS.
3.1 FLUE CLEANER” Function.
This function is used to perform proper boiler combustion analysis and maximum and minimum gas
calibration.
Follow the instructions below to enable it:
The display will show this indication
Press Reset button for 5 continuous seconds
With the boiler on “Winter” mode, the 3-way valves is positioned on “heating” and the burner turns on
even without heating requested.
With the boiler on “summer” mode:
o without sanitary demand the burner turns on in heating;
o with sanitary demand the burner turns on in sanitary.
The delivery temperature (NTC1) is checked during the “Flue cleaner” function, as follows:
“summer” mode → Off: 86°C; On: 81°C;
“winter” mode → Off: 89°C; On: 84°C.
Three different powers can be selected when the function is enabled, after the activation of the function the
boiler goes at the maximum heating power, after that is possible change it:
To exit the “Flue cleaner” function press the RESET button. However after 30 minutes the function will be
disabled automatically.
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