40
COMMISSIONING AND MAINTENANCE
The heating delivery temperature is defined by a setpoint which
varies according to the external temperature and the ambient
temperature on the basis of a climatic curve defined by the fol-
lowing parameters:
Par.
No.
Description
2131
Main Zone/Zone 1 mild climate external temperature
compensation.
2132
Main Zone/Zone 1 ambient temperature nominal
value
When an OpenTherm (OT) ambient thermostat is
connected to the thermal unit or to the zone control
accessory, this parameter is not displayed
2119
Main Zone/Zone 1 heating setpoint at the minimum
external temperature.
The range of this parameter is limited to the values
of Minimum (Par. 2023) and Maximum (Par. 2024)
setpoints.
2120
Main Zone/Zone 1 minimum external temperature.
It defines the minimum external temperature to
which the maximum heating setpoint Par. 2119 must
be associated.
2121
Main Zone/Zone 1 heating setpoint at the maximum
external temperature (Par. 2122).
It sets the minimum heating setpoint when the
external temperature is equal to the value set in pa-
rameter 2122 (basic external temperature).
2122
Main Zone/Zone 1 maximum external temperature.
It sets the external temperature at which the boiler
setpoint must be reduced, according to the value
defined in parameter 2121.
2023
Minimum heating setpoint.
2024
Maximum heating setpoint.
2125
Main Zone/Zone 1 summer/winter switching.
It blocks the heating request when the external tem-
perature is greater than this setpoint.
2130
Parallel shift of main Zone/Zone 1 climatic curve.
2134
Compensation factor of external temperature.
Parameter 2125 (installer level)
Between seasons, in certain days, the day external tempera-
ture may exceed the limit threshold set in parameter 2125 (sum-
mer/winter switching), in this case the heat request in heating
mode is interrupted even if the ambient temperature has not
yet reached the target setpoint. It is possible to increase the val-
ue of Par. 2125 preventing the request from being stopped in
heating mode.
T delivery
(°C)
T outside (°C)
Tset min (°C)
Tset max (°C)
Par. 2024
Par. 2023
Par. 2120
Par. 2122
Par. 2125
Par. 2119
Par. 2121
Parameter 2131 (installer level)
In-between seasons when the external temperature gets closer
to the maximum limit set in Par. 2122, the delivery temperature
calculated in climatic curve could be different from the one suit-
able to meet the request. This parameter performs a non-linear
correction of the climatic curve to offset this difference.
T delivery
(°C)
T outside (°C)
Tset min (°C)
Tset max (°C)
Par. 2130
Par. 2024
Par. 2023
Par. 2120
Par. 2122
Par. 2125
Par. 2119
Par. 2121
Parameter 2132 (installer level)
Main Zone/Zone 1 ambient temperature nominal value.
This parameter defines the required ambient temperature with
which the regulator calculates the heating delivery setpoint. A
higher or lower required ambient temperature moves the heat-
ing curve upwards or downwards on a 45° axis.
If, in heating mode 1 (Par. 2001 = 1) an OpenTherm (OT) ambi-
ent thermostat is connected to the thermal unit or to the zone
control accessory, this parameter is not used since the OT ambi-
ent thermostat directly provides the regulator with the ambient
temperature setpoint.
T delivery
(°C)
T outside (°C)
Par. 2132 = 15°C
Par. 2132 = 20°C (*)
Par. 2132 = 25°C
92°C
82°C
72°C
-20°C (*)
20°C (*)
0°C
Par. 2122
Par. 2120
Par. 2125
(*)
Default setting
