7 Switching off the appliance
7.1
Installation shutdown
If the central heating system is not used for a long period, we
recommend switching the boiler off.
4
Switch the On/Off switch to Off.
4
Switch off the boiler electrical power supply.
4
Close the oil inlet.
4
Ensure that the boiler and system are protected against frost
damage.
4
The boiler and the chimney must be swept carefully.
4
Close the door of the boiler to prevent the internal circulation of
air.
4
Remove the pipe connecting the boiler to the chimney and plug
the nozzle.
4
Drain the domestic water tank and pipes (For models with
domestic hot water production).
7.2
Antifreeze protection
When the heating water temperature in the boiler is too low, the
integrated boiler protection system starts up. This protection functions
as follows:
4
If the water temperature is lower than 7°C, the heating pump starts
up.
4
If the water temperature is lower than 4°C, the boiler starts up.
4
If the water temperature is higher than 10°C, the boiler shuts down
and the circulation pump continues to run for a short time.
4
If the water temperature in the storage tank is less than 4°C, it is
reheated to its set point.
CAUTION
4
The antifreeze protection does not function if the
appliance is switched off.
4
The integrated protection system only protects the
boiler, not the installation. To protect the installation,
set the appliance to
HOLIDAYS
mode.
The
HOLIDAYS
mode protects:
4
The installation if the outside temperature is lower than 3°C
(factory setting).
4
The room temperature if a remote control is connected and the
room temperature is lower than 6 °C (factory setting).
7. Switching off the appliance
AFC 18 - AFC 24 - AFC 30
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09/07/2015 - 300026439-07