User`s manual

11
user’s manual
Operating mode selection
Use the MODE button 3 to select the desired operating mode.
Operating mode Display
heating + hot water production for domestic use -
winter
hot water production for domestic use only -
summer
Only Heating
CLAS EVO SYSTEM
The ignition of the burner is indicated on the display by the symbol
the dashes underneath indicate the power utilised. .
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 value the display will
request a  lling procedure.
Re-establish the correct pressure by using the  lling valve..
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 9 on the control panel to switch on the boiler.
The display shows:
● the operating mode:
● The  gures indicate:
- the set temperature in central heating mode
- the set temperature of the hot water in domestic hot water
WARNING
Installation,  rst ignition and maintenance work must be performed
by quali ed personnel only, in accordance with the instructions
provided.
Incorrect installation may harm individuals, animals or property; the
manufacturer will not be held responsible for any damage caused as
a result.
Switching o the heating
To switch o the heating, press the MODE button 3; the heating
operation symbol will disappear from the display. The Mode button
can be used to keep the domestic hot water production process
active or to place it in standby (modes deactivated).
In the  gure below the boiler remains active only for the production
of domestic hot water, indicating the set temperature.
Adjusting the heating
It is possible to set the temperature of the heating water by pressing
the buttons 12.
The temperature that may be obtained which varies from 35°C to
82°C.
Domestic hot water temperature adjustement
It is possible to set the temperature of the domestic hot water by
pressing the buttons 2 a temperature may be obtained which varies
from 36°C to 60°C.
The value set previously will  ash on the display.
Domestic hot water temperature adjustement
CLAS EVO SYSTEM
with an external tank connected
It is possible to set the temperature of the domestic hot water (tank)
by pressing the buttons 2 a temperature may be obtained which
varies from 40°C to 60°C.
The value set previously will  ash on the display.