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4.3 Ignition
Check than any shut-off valves in the heating system and domestic hot water circuit outside of the boiler are
open. Open the gas cock upstream from boiler and press the main switch. The boiler will perform an self-
test cycle lasting approximately one minute, at the end of which it is ready for operation. The ignition and
shut-down of the burner assembly are completely automatic operations, which depend on the requirements
of the heating system or domestic hot water circuit.
4.4 Shut-down
In the event of extended periods of inactivity close the gas cock upstream from the boiler and disconnect
the electrical power supply to the appliance. In this case, the boiler antifreeze protection function is also
disabled; this function switches on the burner assembly when the heating system temperature falls below
5°C. For extended periods of inactivity during the winter months, in order to avoid damage due to freezing,
all the water should be drained from the boiler, both the domestic hot water and the heating system;
alternatively, drain only the domestic hot water and introduce the special antifreeze into the heating system.
4.5 Operating indications on the display
During operation, without pressing any of the buttons the display shows the operating status of the
appliance:
Standby
Heating
Domestic hot water
Standby following domestic hot water op.
Standby following heating op.
Waiting for DHW production
4.6 Accessing the operating menu
Pressing the "
displays the following parameters and information in sequence:
40
Operating mode
- mode" button once accesses the operating menu. Pressing the "
DISPLAY D1
DISPLAY D2/D3
Summer/Winter Selection (00=Summer • 11=Winter)
Economy/Comfort Selection
CH outlet temperature view and setting
Aquafast temperature view/DHW output setting
Domestic hot water temperature
External temperature
Flue gas temperature
-
Domestic hot water flow rate
Boiler power
Compensation curve setting
-
Display "D1"
Display "D2/D3"
Central heating outlet temperature
Central heating outlet temperature
Domestic hot water temperature
Domestic hot water temperature
Central heating outlet temperature
Domestic hot water temperature
ARENA 30 C
- mode" button again
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