DeDietrich C 330 Series Installation, User And Service Manual page 43

Fig.35 SCU-S05 control PCB
X1
SCU-S05
X2 X3
FgV HdV EgV Pump
X4
N L N L N L N L
Status
FgV HdV EgV Pump
Nc C No Nc C
N L N L N L N L
Nc C No Nc C
Fig.36 FgV connection
FgV
N L
FgV
N L
AD-0000546-01
Fig.37 Connecting the HdV
HdV
N L
HdV
N L
AD-0000547-01
Fig.38 EgV connection
EgV
N L
EgV
N L
AD-0000548-01
Fig.39 Connecting the pump
Pump
N L
Pump
N L
AD-0000549-01
Fig.40 Status of connections
Status Status
Nc C No Nc C No
Nc C No Nc C No
AD-0000550-01
7600532 - v.11 - 13122018
X9
X8
X5 X6 X7
Status 0-10 Ctrl Wps
No 0 + 0 + 0 S + Tout Gps VPS
No 0 + 0 + 0 S + Tout Gps VPS
AD-0000508-01
See
Manual for the control panel.
Connection options for the SCU-S05 control PCB
The extended SCU-S05 control PCB is available as an accessory.
Important
On removing this PCB, the boiler will display an error code. To
prevent this error, an auto-detect must be carried out after
removing this PCB.
See
Manual for the control panel.
Connecting the flue damper (FgV)
Not applicable.
Connecting the hydraulic valve (HdV)
In a cascade configuration, a hydraulic valve prevents heat loss in the
system when the boiler is not running.
1. Connect the hydraulic valve to the HdV terminals of terminal strip.
2. Change the hydraulic valve running time with a parameter setting.
See
Manual for the control panel.
Connecting the external gas valve (EgV)
DIEMATIC iSystem: This function is available as standard.
IniControl: If there is a heat demand, an alternating voltage of 230 VAC, 1
A (maximum) becomes available at the EgV terminals of the connector to
control an external gas valve.
Connecting a shunt pump
If required, a shunt pump may also be installed on the Pump terminals of
the connector. Only an on/off pump can be controlled. The maximum
power consumption is 300 VA. The pump is activated for certain
blockages.
See
Manual for the control panel.
Operation signal and error signal (status)
DIEMATIC iSystem: Connect to the A.Tel output of the boiler.
IniControl: The choice of an alarm or operation signal can be set on
connectors X4 or X5 using a parameter setting.
See
Manual for the control panel.
6 Installation
43