38
3 4 Setting the heating parameters
The following heating parameters can be set:
1
Setpoint_T_CH_High
High temperature circuit setpoint (parameter 1)
If the "fixed point" operating mode is set (par. 14=CH_type_high=0), it is the target temperature.
If the "climatic control" operating mode is set (par. 14=1) , it is the maximum target temperature with minimum outdoor
temperature (T_out_min=par. 37, preset to 0°C).
parameter 18 (T_ch_high_foot, preset to 50°C) defines the minimum setpoint at maximum outdoor temperature (T_out_
max=par. 38, preset to 18°C).
Preset to 70°C and upper value limited by par. 17 (T_ch_high_limit, preset to 80°C).
T_out_max
External temperature (°C)
Delivery temperature (°C)
100
90
80
70
60
50
40
30
20
10
0
25
20
15
10
5
0
-5
-10
-15
-20
CLIMATIC CURVE
HIGH TEMPERATURE circuit
T_CH_High
Max heat
requirement
T_CH_High_foot
T_out_min
2
Setpoint_T_CH_Low
Low temperature circuit setpoint (parameter 3)
If the "fixed point" operating mode is set (par. 22=CH_type_low=0), it is the target temperature.
If the "climatic control" operating mode is set (par. 22=1) , it is the maximum target temperature with minimum outdoor
temperature (T_out_min=par. 37, preset to 0°C).
parameter 24 (T_ch_low_foot, preset to 25°C) defines the minimum setpoint at maximum outdoor temperature (T_out_
max=par. 38, preset to 18°C).
Preset to 40°C and upper value limited by par. 23 (T_ch_low_limit, preset to 50°C).
T_out_max
External temperature (°C)
Delivery temperature (°C)
100
90
80
70
60
50
40
30
20
10
0
25
20
15
10
5
0
-5
-10
-15
-20
CLIMATIC CURVE
LOW TEMPERATURE circuit
T_CH_Low
Max heat
requirement
T_CH_Low_foot
T_out_min
Therefore, it is possible to work with a fixed point or set a climatic curve on every circuit.