Biasi M300V.2025 SM User Manual And Installation Instructions page 84

Flue sweep function at maximum output
in heating mode
• Press key 15 to vary the output in chimney
sweep mode: when the LCD display dis-
plays the letters cP that alternate with the
heating water temperature value (e.g.60),
the "flue sweep function" is at maximum
(eventually range rated) output in heating
mode (Fig. 10.26).
Fig. 10.26
Flue sweep function at maximum output
in domestic hot water mode
• Press further key 15 to vary again the out-
put in flue sweep mode: when the LCD
display displays the letters dP that alter-
nate with the heating water temperature
value (e.g.60), the "flue sweep function" is
at maximum output in domestic hot water
mode (Fig. 10.27).
Fig. 10.27
- 84 -
MAINTENANCE
• Press keys 13 and 15 simultaneously
(Fig. 10.21) for 1 second to exit "chimney
sweep mode" and return to the menu list.
To exit the parameters menu:
• wait 15 minutes without pressing any key;
• switch off the electric power supply;
• press the 13 and 15 keys simultaneously
for 5 seconds (Fig. 10.23) (return to previ-
ous level).
Note to service engineers
It is required that the burner seal lip seal
and mixing chamber seal along with the
flame detection electrode are inspected
every year and replaced if required.
Failure to inspect the flame detection
probe, seals and replace as required
may render the guarantee void.