13
INTRODUCTION
Supply Temp.
°F (°C)
Outdoor Temp. °F (°C)
Tset min °F (°C)
Tset max °F (°C)
Par. 109
Par. 24
Par. 23
Par. 20
Par. 22
Par. 25
Par. 19
Par. 21
The demand is activated when the room/heat demand thermo-
stat's contact is closed provided that outdoor temperature does not
exceed the value set by the parameter 25.
If the outdoor temperature is higher than the one set on parameter
25 , the burner is stopped even if there is a heat demand.
The climatic curve can also be adjusted in a simpler, more us-
er-friendly way.
Enter the "CH" menu. The following display will appear:
“
Central Heating (CH)
”
“
Outdoor reset
”
Press the
●
button to confirm and enter the climatic curve screen.
“
Outdoor reset
”
“
Setp. [°F]
”
194
32
5
95
“
Des. Supply T.
”
179.6
“
°F
”
“
Bas. Supply T.
”
104.0
“
°F
”
“
WW Shutdown
”
69.8
“
°F
”
“
Bas. Outd. T.
”
69.8
“
°F
”
“
T Outside [°F]
”
“
Des. Outd. T.
”
24.8
“
°F
”
"Design Supply Temp." and "Design Outdoor Temp." will be dis-
played. To change their value, press the
●
button.
1
Use the
▲
/
▼
buttons to modify Design Supply Temp and the
◄
/
►
buttons to change Design Outdoor Temp.
2
Press
●
button to save changes
3
Use the
◄
/
►
buttons to select other values.
Repeat steps 1 to 3 to make other changes.
After setting the parameters, press the ESC key to exit the menu.
9
If the outdoor temperature sensor (sold as an accessory) is not
detected (not installed or damaged) the system provides a
warning: no. 202
The presence of the warning does not stop the boiler from
allowing a heat request to be carried out at the maximum
setpoint set on the climatic regulation.
Mode 2
(Working on climatic mode and controlled by a room/heat demand
thermostat, variable set point according to the outdoor tempera-
ture)
In this case the boiler operates with a set-point defined by the
climatic curve (which can be set in the same way as described in
Mode 1) depending on outdoor temperature. The heat demand is
controlled independently from whether the room/heat demand
thermostat's contact is controlled and stops only when the outdoor
temperature is greater than the one defined by the parameter 25.
In this mode parameter 28 defines how many degrees the set-point
is decreased when the room/ heat demand thermostat's contact is
opened.
Par.
No. Description
109 Defines the value of the set point calculated in climatic
mode (Par. 1 = 1).
19
Establishes the max. set-point at the minimum outdoor
temperature for climatic regulation
20
Establishes the minimum outdoor temperature to which
the maximum set-point can be associated for climatic
regulation
21
Establishes the minimum set-point at the maximum out-
door temperature for climatic regulation
22
Establishes the maximum minimum outdoor temperature
to which the minimum set-point can be associated for
climatic regulation
23
Limits the minimum value that can be assigned to the
set-point in heating mode (does not apply to heating
mode 4).
24
Limits the maximum value that can be assigned to the
set-point in heating mode (does not apply to heating
mode 4).
25
Defines the temperature at which climatic regulation is
switched off
28
Use the heating mode Par. 1= 2 or 3. Defines how many
degrees the supply set point is lowered.
Supply Temp.
°F (°C)
Outdoor Temp. °F (°C)
Tset min °F (°C)
Tset max °F (°C)
Par. 109
Par. 24
Par. 23
Par. 20
Par. 22
Par. 25
Par. 19
Par. 109
Par. 28
Par. 21
