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SFK 28 - RAD - ING - Manuale - 1801.1_V3
3 Ac
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3. USE
USER
3.1.5. START-UP
Before starting the water heater make sure that
it is powered and that the gas tap below the water
heater is open.
To start the water heater press the function key ‘
’.
3.1.6. OPERATING MODE
DOMESTIC HOT WATER TEMPERATURE
ADJUSTMENT
You can adjust the temperature using keys ‘
’
and ‘
’ of the domestic circuit
:
· press key ‘
’ to decrease the temperature.
· press key ‘
’ to increase the temperature.
The hot domestic water temperature adjustment
field ranges from 40 °C to 60 °C.
RECIRCULATION MODE TEMPERATURE
ADJUSTMENT
You can adjust the temperature using keys ‘
’
and ‘
’ of the symbol recirculation
:
· press key ‘
’ to decrease the temperature.
· press key ‘
’ to increase the temperature.
The return temperature adjustment field ranges
from 30 °C to 45 °C.
OFF MODE
In this mode the water heater no longer meets the
domestic hot water demands, the anti-freeze and
pump anti-locking systems still remain active.
To switch the water heater to OFF operating mode,
press the function key ‘
’, the symbol ‘
’
will appear fixed on the display, indicating that the
function is enabled.
If the water heater was previously running, it will
be turned off and the post-ventilation and post-
circulation functions will be enabled.
3.1.7. INFORMATIONAL NOTE ON
ANTI-FREEZE FUNCTION
The water heater is protected against freezing
thanks to the electronic board preparation with
functions that start the burner and heat the
concerned parts when their temperature goes
below the minimum pre-set values.
WARNING
This function is available only if:
› the water heater is powered;
› the gas supply is open;
› the water heater is not blocked.
