Analogue Input (0 - 20 Ma) - DeDietrich C230 ECO-A 120 Installation, Operating And Service Manual

8 Control and electrical connections
Fig. 17 Jumper 1
46
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 [mA]
0 - 3.6*
%
4 - 4.4*

4* - 20
* Dependent on the minimum modulation dept (fan rotation speeds
settings, pre set 20%)
Table 9 Analogue input signal for boiler output

8.6.4 Analogue input (0 - 20 mA)

If this feedback message is received, temperature or heat
output can be selected. The two are described briefly below.
Jumper (1) on the interface is used to select either temperature
( ) or boiler output (%).
Feedback is given in V.
Jumper Output
1 signal
[V]
0.5
1 - 10
Table 10 Analogue output signal for temperature
Output
Jumper
signal
1
[mA]
0
0.5

%
2.0* - 10
* Dependent on the minimum modulation dept (fan rotation speeds
settings, pre set 20%)
Table 11 Analogue output signal for boiler output
Boiler output Description
[%]
0 – 20 Boiler off
20 – 22 Hysteresis
20 -100 Desired boiler output
Temperature Description
[°F]
- Alarm
50 – 212 Delivered
temperature
Description
Boiler output
[%]
0 - 15 Boiler off
15 - 18 Alarm
20 - 100 Delivered boiler
output
C230 ECO-A