User`s manual

4
manuale d’uso
Initial operating procedures
If the boiler is installed inside the apartment, make sure that
all provisions relating to the air inlet and room ventilation (in
compliance with current legislation) are respected.
Check the water pressure on the display regularly and make sure
that the gure is between 0.6 and1.5 bar when the system is cold.
If the pressure is just under the minimum restablish the correct
pressure by open the valve under the boiler.
If the pressure drops very frequently, there may be a water leak at
some point in the system. If this is the case a plumber should be
contacted.
Ignition procedure
Press the ON/OFF button on the control panel to switch on the
boiler. The display shows:
The rst gure indicates the operating mode:
0 XX - Stand -by,
C XX - Central heating request
c XX - Heating post-circulation
d XX - Domestic hot water request
b XX - Storage
H XX - Hot water post-circulation
F XX - Circulation pump anti-freeze protection enabled
- burner anti-freeze protection enabled
The second and third gures indicate:
- the ow temperature when no heating requests have been
made
- the ow temperature in central heating mode
- the temperature of the hot water in domestic hot water mode
- the ow temperature in anti-freeze mode. ta.
Winter and Summer Operating Modes
In the “winter” operating mode, the boiler will produce both Central
Heating and Domestic Hot Water. In the “summer” operating mode,
the boiler will produce only Domestic Hot Water.
Using the knob on the control panel, the user can select “winter” or
“summer” operating mode. Keeping the knob “5” at the “ ” position
selects the “summer” operating mode. “Winter” operating mode
may be selected by positioning the knob “5” between the min. and
max. settings.
Adjusting the heating
It is possible to set the temperature of the Central Heating system
by adjusting the knob “5”. By positioning the indicator somewhere
between 1 and 6, a temperature may be obtained which varies
from approximately 38˚C to about 82˚C.
The water temperature in the primary circuit is shown on the
display.
Setting the hot water for domestic use
Both in the winter and summer mode, the temperature of the
Domestic Hot Water may be adjusted by using knob “10”. A
delivery temperature for the water may be chosen in a range from
36˚C to about 56˚C, depending on the flow rate of the water and
the position of the knob between the min. and max. settings.
To increase water temperature, turn knob “10” to max. and reduce
the water flow rate at the tap.
The domestic hot water temperature is shown on the display.
To exclude the storage, press the button 17, the Yellow LED 4 lights.
The boiler will still provide only heating.