602
Thermo G
6 Wiring diagrams
Abb. 601 System wiring diagram for water heaters Thermo G with timer, for legend see page 603
Abb. 602 System wiring diagram for water heaters Thermo G with switch, for legend see page 603
ERH
MV2
MV1
UP
BM
SG 1588
Thermo G
1
10
4
12
11
8
2
HS
ERH +
ERH -
MV2 +
MV2 -
MV1 +
rt
sw
bl
br
MV1 -
UP +
BM+
BM-
ZF+
ZF-
ION-
ION+
UP -
+
S-Bus
PT500
PT2000
UPFA
BA+
1
8
7
6
4
5
1
1
2
2
1
1
2
2
3
3
4
4
2
1
3
1
2
3
4
5
6
2
F5
5A
F4
5A
F3
5A
F2
20A
F1
20A
UPFA
BA
HS
0.75mm
2
0.75mm
2
2.5mm
2
2.5mm
2
2.5mm
2
2.5mm
2
2.5mm
2
2.5mm
2
0.75mm
2
0.75mm
2
0.75mm
2
0.75mm
2
0.75mm
2
C
BM
I
P
D
T
V
1
2
Terminal. 58
Terminal 15
Terminal 30 (permanent plus)
Terminal 31 (ground)
T. 31 HG
T. 30 HG
T. 31 UP
T. 30 UP
Ground
Electronic
Gas
free
Overheating
Protection
Coolant
Temperature
Sensor
Diagnostic
Regulator
Pressure
Ignition
Module
ERH
MV2
MV1
UP
BM
SG 1588
Thermo G
2
HS
BM+
BM-
ZF+
ZF-
ION-
ION+
+
S-Bus
PT500
PT2000
UPFA
BA+
1
8
7
6
4
5
1
1
2
2
1
1
2
2
3
3
4
4
2
1
3
1
2
3
4
5
6
F3
5A
F2
20A
F1
20A
UPFA
HS
BA
0.75mm
2
0.75mm
2
2.5mm
2
2.5mm
2
2.5mm
2
2.5mm
2
2.5mm
2
2.5mm
2
0.75mm
2
C
BM
I
P
D
T
V
ERH +
ERH -
MV2 +
MV2 -
MV1 +
rt
sw
bl
br
MV1 -
UP +
UP -
Terminal 30 (permanent plus)
Terminal 31 (ground)
T. 31 HG
T. 30 HG
T. 31 UP
T. 30 UP
Ground
Electronic
Gas
free
Overheating
Protection
Coolant
Temperature
Sensor
Diagnostic
Pressure
Regulator
Ignition
Module
