Analogue Input (0 - 10 V) - DeDietrich C230 ECO-A 120 Installation, Operating And Service Manual

C230 Eco-A
Fig. 13 Jumper 2

8.5.3 Analogue input (0 - 10 V)

This control can be based on temperature or heat output
(optional). The two controls are described briefly below.
Connect the 0 - 10 V signal to the interface input for analogue
control.
Analogue temperature-based control ( )
The 0-10 V signal controls the boiler flow temperature between
32°F (0°C) and 212°F (100°C). This control modulates on the
basis of flow temperature, where the heat output varies
between the minimum and maximum values on the basis of the
set point flow temperature calculated by the controller.
Jumper (2) on the interface is used to select either temperature
( ) or boiler output (%) control.
Jumper Input signal
2 [V]
0 - 1,5
1,5 – 1,8

1,8 - 10
Table 4 Analog input signal for temperature
Analogue output-based control (%)
The 0-10 V signal controls the boiler output between 0% and 100%,
where the minimum and maximum values are limited. The minimum
output is linked to the boiler's modulation depth. This control is output
modulated, where the output varies between the minimum and
maximum values on the basis of the value defined by the controller.
Jumper Input signal
2 [V]
0 - 2,0*
%
2,0 - 2,2*

2,0* - 10
* Dependent on the minimum modulation dept (fan rotation speeds
settings, pre set 20%)
Table 5 Analogue input signal for boiler output
8 Control and electrical connections
Temperature Description
[°F]
32 – 59 Boiler off
59 - 64 Hysteresis
64 -212 Desired temperature
Boiler output Description
[%]
0 – 20 Boiler off
20 – 22 Hysteresis
20 -100 Desired boiler output
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