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Fig.40
Access to the PCB
4
6
Fig.41
SCB-10 PCB
N L
1 Outdoor temperature sensor
2 Programmable and 0-10 V input
7686707 - v.01 - 06092018
6.6.6
1. Unscrew the two screws located under the front panel by a quarter
2. Remove the front panel.
3. Tilt the instrument box forwards by opening the clips on the sides.
4. Remove the air intake silencer.
5. Unclip the 4 clips on the left side of the PCB housing cover.
6. Swing the cover to the right and pull it forward to remove the cover
7. Connect the cables to the appropriate terminals on PCB SCB-10.
8. Position the upper hinges of the cover in the right position of the PCB
9. Press all hinges of the cover into place.
10. Close the 4 clips on the left side of the cover.
11. Fit the air intake silencer.
12. Reassemble the front panel in the reverse order.
AD-0001388-04
6.6.7
Different heating zones can be connected to the SCB-10 PCB. Two zones
are designated for heating and one for domestic hot water.
The connections for the sensors or pumps of each zone are on the PCB.
B
A
N L
TS
N
N
6
7
8
9
Warning
Only suitable for potential-free contacts.
Access to the PCB housing
turn.
from the boiler.
housing.
For more information, see
Opening boiler, page 104
Description of the SCB-10 PCB
18
19
20
1
2
Status
0-10V
+
-
Tout
4
3
2
1
1
2
N L
TS
Tsyst
Tsyst Tdhw Tflow
10
11
12
3 Room temperature sensor - circuit C
4 Room temperature sensor - circuit B
21
22
X2
X3
3
4
5
C
B
A
R-Bus
R-Bus
R-Bus
TA
C
B
A
+TA-
Tflow Tflow
13
14
15 16 17
6 Installation
23
AD-3001210-01
AMC
41
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