USER INSTRUCTIONS
4
5. Boiler functioning modes
“SUMMER” mode
To switch boiler operation to “SUMMER” mode, press the MODE SELECTION button (‘3’ – fig. 1); The
boiler will only work for the D.H.W system, the heating system is disabled. The “SUMMER” mode setting of the
boiler is signalled by the symbol , lit continuously on the control panel.
The automatic ignition system will light the burner every time there is a domestic hot water demand. In this case,
the symbol will flash on the control panel.
“WINTER” mode
To switch boiler operation to “WINTER” mode, press the MODE SELECTION button
(‘3’ – fig. 1); The
boiler will only work for the Heating system. The “WINTER” mode setting of the boiler is signalled by the symbol
lit continuously on the control panel.
The automatic ignition system will light the burner every time there is a room heating demand. In this case, the
symbol will flash on the control panel.
“SUMMER-WINTER” mode
To switch boiler operation to “SUMMER-WINTER” mode, press the MODE SELECTION button
(‘3’ – fig.
1); The boiler will work for both central heating/D.H.W systems. The “SUMMER-WINTER” mode setting of the
boiler is signalled by symbols lit continuously on the control panel.
The automatic ignition system will light the burner every time there is a room heating or domestic hot water
demand. The functioning is signalled by the symbols flashing continuously on the control panel.
Regulating the heating temperature
The heating temperature is regulated by using ‘ ’ and ‘ ’ buttons of Heating temperature setting (‘1’ –
fig. 1):
• Pressing ‘ ’ button, reduces the temperature.
• Pressing ‘ ’ button, increases the temperature.
The range of temperature settings for the central heating runs from a minimum of 30°C to a maximum of 80°C (25
°C – 45 °C for under floor heating systems).
Regulating the D.H.W temperature
The D.H.W temperature is regulated by using ‘ ’ and ‘ ’ buttons of D.H.W temperature setting (‘5’ –
fig. 1):
• Pressing ‘ ’ button, reduces the temperature.
• Pressing ‘ ’ button, increases the temperature.
The range of temperature settings for the D.H.W temperature runs from a minimum of 35 °C to a maximum of 60
°C.
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