37
CONTROL SYSTEM
Comfort
Reduced
Frost Protection
Operating mode selection for heating and cooling circuits
Heating circuit 1 :
through the Heating button on the remote control
Heating circuit P :
through the Heating button on the remote thermostat
Cooling circuit 1 :
through the Cooling button on the remote control or through the parameter 901
Set point setting
For each heating circuit 3 set points can be set : Comfort, Reduced and Frost Protecion.
For each cooling circuit only one set point can be set : Comfort.
The set points of the heating circuits are related one each other : the Comfort set point can not be lower than the Reduced set point,
the Reduced set point can not be lower than the Frost Protection set point and the Frost Protection set point can not be lower than
4°C.
All the set points can be adjusted through the parameters.
The Comfort set points of the heating circuit 1 and of the cooling circuit 1 can also be adjusted by means of the knob of the user
interface.
The Comfort set point of each circuit can also be adjusted by means of the knob of the remote control or of the remote thermostat
assigned to that circuit (if present).
Heating integration with external heating source
It is possible to manage the activation of an external heating source to integrate the heating capacity supplied by the heat pump. The
external source can be enabled only when the outdoor temperature is lower than a fixed limit (parameter 3700) in order to realize a
bivalent operation.
Heating circuits climatic curves setting
The climatic curves allow to calculate the flow temperature
set point of each circuit according to the outdoor air tempera-
ture in order to keep the room temperature as near as possi-
ble to the set value.
The curves are referred to a room set point of 20°C . If the
set point is modified, the curve automatically change to adapt
themselves to the new value.
It is possible to modify the parameters of the climatic curves
in order to fit the features of the plant and of the building.
The higher the slope of the curve, the higher is the change of
the flow temperature set point for low values of the outdoor
air temperature.
If the room temperature is correct for high outdoor air tem-
perature but is lower than the set point for low outdoor air
temperature, the slope of the curve must be increased and
vice versa.
If on the other hand the room temperature is always lower or
higher than the set point the curve must be translated without
modifying its slope.
Heating circuit 1
Heating circuit P
Cooling circuit 1
Comfort set point
parameter 710
parameter 1310
parameter 902
Reduced set point
parameter 712
parameter 1312
-
Frost Protection set point
parameter 714
parameter 1314
-
Maximum Comfort set point
parameter 716
parameter 1316
40 °C
Minimum Comfort set point
-
-
15 °C
Heating circuit 1
Heating circuit P
Climatic curve slope
parameter 720
parameter 1320
Climatic curve displacement
parameter 721
parameter 1321
0
2
4
6
8
10
12
14
16
18
20
22
°C
