Isolating transformer
Mains
voltage
primary
N
L
N
L
1
1
2
3
4
5
Note
Fit cables in the strain relief.
See below or instruction manual of the water heater:
-
electrical connection diagram (17.3 "Electrical diagram for the water heater")
See electrical diagram of the dual service module:
-
electrical diagram Theta Duals Service (BFC) (11.3 "Electrical diagram Theta dual
service module (BFC)")
Terminal block water heater
Alarm Out
secondary
N
L
X
X
2
1
6
7
8
9
10
11
If you have no mote connection to make:
-
Fit the cover (snap-on type) over the controller.
Program-
controlled
pump
N
L
-
2
3
12
13
14
15
16
External
ON/OFF
-
-
-
-
X
3
17
18
19
20
21
Bus-
link
X
X
X
4
5
6
22
23
24
79