0-10 Volt Control With Expansion Pcb - DeDietrich C 340 Series Installation And User Manual

Zone setting
10 = DHW Layered
11 = DHW Internal tank
Fig.85 0-10 Volts temperature based with
expansion PCB
100
2
1
0
0
3
0 - 10 V
Fig.86 0-10 Volts heat output based with
expansion PCB
100
2
1
0
0
3
0 - 10 V
Tab.68 Required components
Components
0-10 volts provider
Two-wire cable
7762666 - v.02 - 29092020
Explanation
Setting to manage domestic hot water with 2 sensors, a tank top sensor (Tsyst 1 or 2)
triggers the load and the bottom sensor of the tank (Tdhw) triggers the stop of the charge.
Setting to manage domestic hot water for boilers with internal tank.
9.2.5
The appliance has the ability to be controlled by a 0-10 Volts input. This
specific situation describes the situation where the 0-10 Volt input is
processed by an expansion PCB. The 0-10 volts setpoint will overrule the
zone heat demand setpoint. This functionality has two control modes:
based on temperature or based or heat output.
When temperature based is selected the 0-10 Volts will control the
appliance flow temperature. The output varies between the minimum and
maximum value on the basis of the flow temperature setpoint with a fixed
power setpoint.
1 Parameter EP030
2 Parameter EP031
3 Parameter EP034
4 Parameter EP035
When heat output based is selected the 0-10 Volts will control the
appliance heat output. The output will be converted towards a 0 - 100%
relative power setpoint with a fixed temperature setpoint. The minimum
output is linked to the appliance modulation depth.
10
4
AD-3001543-01
1 Parameter EP032
2 Parameter EP033
3 Parameter EP034
4 Parameter EP035
10
4
AD-3001543-01
Required components
The following components are required:
Details
Device which provides a 0-10 volts.
To connect the 0-10 Volts provider with the appliance. Diameter from 3 to 8 mm, 0,5 - 2,5 mm²
cores.

0-10 Volt control with expansion PCB

Important
When using the 0-10 Volt input and a secondary circuit at the
appliance, the device supplying this 0-10 voltage must always
request a temperature at least equal to the needs of the
secondary circuit.
9 Installer instructions
C 340 / C 640 77