Tab.17 Temperature-based control (°C)
Jumper 2 Input signal (V)
Temperature °C Description
0–1.5
0–15
Boiler off
1.5–1.8
15–18
Hysteresis
1.8–10
18–100
Desired temperature
The 0–10 V signal controls the boiler supply temperature. This control
modulates on the basis of flow temperature. The output varies between
the minimum and maximum value on the basis of the flow temperature set
point calculated by the controller.
A jumper (2) on the interface is used to select either temperature-based
control ( ) or output-based control (%).
Tab.18 Control based on heat output
Jumper 2 Input signal (V)
Heat output (%) Description
%
0–2.0
(1)
0–20
Boiler off
2.0–2.2
(1)
20–22
Hysteresis
2.0–10
(1)
20–100
Desired temperature
(1) Dependent on the minimum modulation depth (set speeds, standard 20%)
The 0–10 V signal controls the boiler output. This control modulates on the
basis of the heat output. The minimum output is linked to the boiler's mod
ulation depth. The output varies between the minimum and maximum val
ue on the basis of the value defined by the controller.
Analogue output (0–10 V)
This feedback can be based on temperature or heat output. The two con
trols are described briefly below.
A jumper (1) on the interface is used to select either temperature ( ) or out
put (%).
Tab.19 Temperature message
Jumper 1 Output signal (V)
Temperature °C Description
0.5
–
Alarm
1–10
10–100
Supplied tempera
ture
Tab.20 Output message
Jumper 2 Output signal (V)
Heat output (%) Description
%
0
0–15
Boiler off
0.5
15–20
Alarm
2.0–10
(1)
20–100
Supplied heat output
(1) Dependent on the minimum modulation depth (set speeds, standard 20%)
Fig.31 Switch jumper (2)
AD-0000055-01
1
2
%
2
2
Fig.32 Switch jumper (1)
AD-0000056-01
1
2
%
1
1
6 Installation
36
123157 - v.06 - 24022015
