Tab.31 Message about the supplied heat output
Output signal (V)
Heat output (%)
Description
0
0
Boiler off
0.5
-
Lock out
20 - 100
Supplied heat output
(1) Dependent on the minimum modulation depth (set speeds, standard 20%)
Analogue input (0 - 10 V)
A choice can be made with this control between control based on
temperature or heat output. If this input is used for 0-10 V control, the OT
communication from the boiler is ignored.
1. DIEMATIC iSystem: Connect to the ING.0–10V input of the boiler. For
settings:
See
Manual for the control panel.
2. IniControl: Connect the input signal to terminals 0–10 of the
connector.
The function of the analogue input can be changed with a parameter
setting.
See
Manual for the control panel.
Tab.32 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.
Tab.33 Control based on heat output
Jumper 2 Input signal (V)
Heat output (%) Description
%
0–20
Boiler off
2.0–2.2
20–22
Hysteresis
2.0–10
20–100
Required output
(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
modulation depth. The output varies between the minimum and maximum
value on the basis of the value defined by the controller.
Connecting the hydraulic pressure sensor (Wps)
The hydraulic pressure sensor registers the water pressure and can shut
the boiler down when the minimum water pressure is reached. To activate
this blocking option, a minimum pressure must be set.
See
Manual for the control panel.
Fig.44
0 - 10 V connection
AD-0000552-01
+
0
+
0
0-10
Fig.45
Wps connection
AD-0000553-01
+
0 S
+
0
Wps
S
6 Installation
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