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CONTROL SYSTEM
DHW button
Allows to select the domestic hot water heating mode (indicated by a bar under the corresponding symbol).
Domestic hot water heating mode
ON
-
domestic hot water temperature controlled according to the set time table
-
protective functions active
Domestic hot water heating mode
OFF
-
protective functions active
Domestic hot water heating mode
FORCED
Pressing for at least 3 seconds the DHW button the domestic hot water tank forced charging function is activated.
RESET button
Permette di cancellare messaggi di errore pendenti e di ignorare i ritardi previsti alla partenza evitando tempi di attesa
indesiderati durante l’installazione o la ricerca di guasti. Questa funzione NON dovrebbe essere utilizzata nel normale
funzionamento.
OCCUPANCY button
When a room is not used for a short period of time, pressing the OCCUPANCY button is possible to lower the room
temperature in order to save energy. When the room is occupied again, pressing again the OCCUPANCY button, normal
operation is restored.
The function is active only in automatic heating mode or in automatic cooling mode :
-
in heating : changeover from Comfort heating to Reduced heating
-
in cooling : changeover from Comfort cooling to cooling OFF
The function remains active until the next operating mode change set through the time table program.
KNOB
Allows to modify the Comfort set point (in heating or in cooling according to the active operating mode). Press the OK
button to confirm.
Allows moreover to select the different parameters inside the menu and to select the values of each parameter.
INFO button
Pressing the INFO button various informations about the operating status of the system can be displayed. The list of
informations changes according to the type of unit, the plant configuration and the active operating mode.
When error or maintenance messages are displayed, pressing the INFO button further details about the event are pro-
vided.
ECO FUNCTIONS
Automatic summer/winter changeover
This function is used to switch on or off the heating mode in the course of the year according to the outdoor air temperature. It is
possible to extend or to shorten the period of time during which the heating mode is active modifying the threshold of the outdoor air
temperature at which the changeover takes place.
The threshold set is independent for each circuit (parameter 730 for heating circuit 1, parameter 1330 for heating circuit P). Increasing
the threshold the heating mode will be switched on earlier and switched off later. To take into account the building thermal inertia the
outdoor temperature is attenauted.
Automatic 24 hour heating limit
This function is used to switch on or off the heating mode in the course of the day according to the outdoor air temperature. This fun-
ction allows, in the intermediate seasons (spring and autumn), to respond to sudden changes of the outdoor air temperature.
It is possible to extend or to shorten the period of time during which the heating mode is active modifying the temperature threshold
at which the changeover takes place. The threshold is calculated adding to the Comfort set point a differential. The differential set is
independent for each circuit (parameter 732 for heating circuit 1, parameter 1332 for heating circuit P). Increasing the differential the
heating mode will be switched on earlier and switched off later.
To take into account the building thermal inertia the outdoor temperature is attenauted.
