Circuit diagrams
E
B2
X1
B3
1
M1
M2
B1
12
58
15
30
F2
4
11
1
10
P2
S9
sw
2
H1
H3
8
ws
H6
12
4
7
X3
86
87
K3
S8
85
31
Fig. 16: System circuit for Thermo 90 S, 12 and 24 V, with standard timer and separate circulating pump control,
see pages 51 and 52 for legend
54
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X1
X3
2
3
4
5
6
3
6
9
1
2
11
10
9
8
7
12
F3
rt
X12 (ST 2)
12
3
4
11
1
5
8
4
12
9
10
X11
(ST 1)
87a
30
sw
1 12
8
5
M
E
M2
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Thermo 90 S / Thermo 90 ST
X11 (ST 1)
X5
X6
1
2
11
9
2
7
5
1
3
1
1
2
X6
1
8
6
9
2
3
11
7
10
6
(ST 3)
X1
6
7
2
11
3
10
9
4
M
ϑ
ϑ
B3
B1
B2
M1
A1
X12 (ST 2)
X13 (ST 3 )
11
2
9
7
5
3
1
F1
2
B4
7
5
2
A2
1
2
X13
rt
86
87
87a
K5
85
30
sw
X5
3
0
1
2
Y1
M3
M
1
5 8
1 5
3 0
31