DeDietrich C 330 ECO Installation, User And Service Manual page 46

4. Installation
R
max
Sp
min
1 2 3 4 5 6 7 8 9
44
Control of 0 - 10 V Grundfos system pump
R
min
max
Sp
U
10 U
T003803-B
Output signal (V) Description
< 0,5
> 0,5
Control of PWM system pump
In this case, the 0-10 V signal controls the system pump linear.
Message about the supplied temperature
Output signal (V) Temperature À Description
0,5
1 - 10
Message about the supplied heat output
Output signal (V)
0,5
2,0 - 10
(1) Dependent on the minimum modulation depth (set speeds, standard 20%)
n Analogue input (0-10 V)
Diematic iSystem: For connection to the boiler's IN 0-10V input.
¼ For the settings, refer to the control panel manual.
IniControl: The function of the analogue input can be set using
parameter p37.
This control can be based on temperature or heat output. If this input
is used for 0-10 V control, then the boiler OT communication is
ignored.
Analogue temperature-based control (À)
The 0 - 10 V signal controls the boiler flow temperature. This control
modulates on the basis of flow temperature, whereby the heat output
varies between the minimum and maximum values on the basis of
the flow temperature set point calculated by the controller.
Input signal (V) Temperature À Description
0 - 1,5
1,5 - 1,8
1,8 - 10
Analogue heat output-based control (%)
Pump regime
Minimum pump speed
Maximum pump speed
Nominal set-point
Output signal (V)
Pump on (Minimum speed)
Pump modulates (Linear)
-
10 - 100
Heat output (%)
0 0
-
(1) 20 - 100
0 - 15
15 - 18
18 - 100
C 330 ECO - C 630 ECO
Lock out
Delivered temperature
Description
Boiler off
Lock out
Heat output supplied
Boiler off
Hysteresis
Temperature required
31/05/2012 - 7600532-01