DeDietrich C 330 ECO Installation, User And Service Manual page 47

C 330 ECO - C 630 ECO
90
70
50
30
10
-20 -10 0
31/05/2012 - 7600532-01
F
10 20
T003800-A
The 0 - 10 V signal controls the boiler output. The minimum and
maximum values are limited. 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 determined by the
controller.
Input signal (V) Heat output (%)
(1)
0 - 2,0
(1)
2,0 - 2,2
(1)
2,0 - 10
(1) Dependent on the minimum modulation depth (set speeds, standard 20%)
n Hydraulic pressure sensor (Wps)
The minimum pressure switch stops the boiler when the minimum
pressure is insufficient. To activate the blockage function, it is
necessary to set a minimum pressure with parameter {MIN
PRESSURE} or p"8 (IniControl) (Factory setting 0 = off). Connect
the hydraulic pressure sensor to the Wps terminals of the terminal
strip.
0 = Earth or neutral of the power supply
S = Signal or output from the sensor
+ = Supply voltage
n Connecting the (Tout) outside temperature sensor
Diematic iSystem: The outside temperature sensor must be
connected to the S.EXT input. The heating curve can be set with
parameters CIRC.CURVE A, CIRC.CURVE B, CIRC.CURVE C and
HCZP D A, HCZP D B, HCZP D C
IniControl: An outside sensor can be connected to the Tout terminals
of the connector (Accessory). Where there is an on/off thermostat
controller, the boiler will control the temperature with the set point of
the internal heating curve.
A OpenTherm controller can also use this outside
sensor. The heating curve required must then be set on the
controller.
If an outside temperature sensor is connected, it is possible to adapt
the heating curve. The setting can be modified using parameters
p1, p"2, p"3 and p"4.
Description
0 - 20 Boiler off
20 - 22 Hysteresis
20 - 100 Heat output requested
4. Installation
45