
On
/o
ff
OT
BL
SE
xt
PCU
SCU
T
S
+
B
A
B
0
-1
0
V
S
AM
B
C
4
3
2
1
2
1
+
-
S
AM
B
B
2
1
S
AM
B
A
2
1
S SYST
+
T
A
-
S ECS
S EXT
S DEP
C
2
1
2
1
2
1
2
1
2
1
S DEP
B
2
1
C003848-D
10
11
1
3
6
8
9
7
4
5
2
2
2
A
Connect the heating pump (Circuit
A
).
Z
Do not connect anything to the terminal block.
E
D.H.W. load pump
R
Hot water storage tank sensor
T
Buffer tank
Y
Solar sensor probe
U
Connect the solar station to the solar collectors.
I
Domestic hot water boiler
O
Connect the DHW sensor.
P
Connect the outside temperature sensor.
5. Installation
AFC 18 - AFC 24 - AFC 30
78
09/07/2015 - 300026439-07