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Fig.2
SCB-10 PCB
N L
1 Outdoor temperature sensor
2 Programmable and 0-10 V input
3 Room temperature sensor - circuit C
4 Room temperature sensor - circuit B
5 Room temperature sensor - circuit A
6 Domestic hot water tank pump
7 Mixing valve - circuit B
8 Pump and safety thermostat - circuit B
9 Mixing valve - circuit A
10 Pump and safety thermostat - circuit A
11 System sensor 1
12 System sensor 2
7747028 - v.01 - 25112019
B
A
N L
TS
N
N
6
7
8
9
control of one domestic hot water (DHW) zone
cascade layout (add sensor on sensor system 1 or 2)
Important
If the boiler is fitted with the SCB-10 PCB, then this is
automatically recognised by the automatic control unit of the
boiler.
On removing this control board, the boiler will show an error
code. To prevent this error, carry out an auto-detect immediately
after removing this board.
18
19
20
1
2
Status
Tout
4
3
1
2
N L
TS
Tsyst
Tsyst Tdhw Tflow
10
11
13 Domestic hot water sensor
14 Flow sensor - circuit C
15 Flow sensor - circuit B
16 Flow sensor - circuit A
17 Impressed current anode
18 Connectors Mod-BUS
19 Coding wheel, selects the generator number in the
cascade in Mod-Bus
20 S-BUS connector
21 END connector for L-BUS connection
22 L-BUS connection to control unit (CU-GH06c)
23 S-BUS cable connector
2 Description of the product
21
22
X2
X3
3
4
5
C
B
A
0-10V
+
-
2
1
R-Bus
R-Bus
R-Bus
TA
C
B
A
+TA-
Tflow Tflow
12
13
14
15 16 17
en
23
AD-3001210-01
5
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