Analogue temperature regulation (°C)
1 Boiler on
2 Parameter CP010
3 Maximum flow temperature
4 Calculated value
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.39 Temperature regulation
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
Analogue output-based control
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.
Tab.40 Control based on heat output
Input signal (V)
Heat output (%)
Description
0–2.0
0
Boiler off
2.0–2.2
0
Heat demand
2.0–10
0–100
Desired heat output
Connecting an outdoor temperature sensor
An outdoor temperature sensor can be connected to the Tout connector.
Always connect the sensor to the PCB that controls the zones. For
example: when the zones are controlled by an SCB-02 or SCB-10,
connect the sensor to that PCB.
1. Connect the two-wire cable to the Tout connector.
Set parameter AP056 to the installed outdoor temperature sensor type.
When an on/off thermostat is also connected, the boiler will control the
temperature with the set point from the internal heating curve. OpenTherm
controllers can also use the outdoor temperature sensor. In that case, the
desired heating curve must be set on the controller.
Room thermostat connector (On/off - OT)
The On/off - OT connector can be used to connect a room thermostat. The
connector supports the following types:
OpenTherm thermostat (for example, the iSense)
OpenTherm Smart Power thermostat
On/off thermostat
It does not matter which wire is connected to which cable clamp. The
software recognizes which type of thermostat is connected.
Fig.48
Temperature regulation
AD-0001156-03
0
10
0 - 10 V
0
100
2
3
4
1
Fig.49
Tout connector
AD-4000006-02
Tout
Fig.50
On/off - OT connector
AD-3001599-02
OT
On/off
5 Installation
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7734324 - v.03 - 29092020
