10
Installation
6 720 612 220 GB (05.09)
3.2
Electrical connections
TD 200 in the heating appliance with bus-
enabled Heatronic 3 circuit board
B
Installation of the TD 200 automatically cre-
ates the bus connection via the three contacts
(Figure 4).
Fig. 9
TD 200 integrated in the bus-enabled
Heatronic 3.
TD 200 on the wall
B
Bus connection from the TD 200 to additional
devices using in the bus (e. g. RT 10):
Use electrical cables corresponding to type
H05 VV-... (NYM-I...) minimum.
Permissible cable lengths of the bus-enabled
Heatronic 3 to the TD 200:
B
To avoid inductive influences, lay all cables
carrying low voltage lines of 230 V or 400 V
separately (minimum spacing 100 mm).
B
Shield the cables in the case of external
inductive influences.
This ensures that the cables are shielded
against external influences (e.g. heavy current
cables, overhead contact wires, transformer
stations, radio and television appliances, ama-
teur radio stations, microwave appliances
etc).
Fig. 10
TD 200 connected to the bus-enabled
Heatronic 3.
Fig. 11
Connection of the bus connections via
junction box (A)
Cable length
Cross section
≤
80 m
0.40 mm
2
≤
100 m
0.50 mm
2
≤
150 m
0.75 mm
2
≤
200 m
1.00 mm
2
≤
300 m
1.50 mm
2
TD 200
1
2
4
B
B
RT 10
B
B
6 720 612 218-03.1J
ST 19
Heatronic 3
A
F
i
If the cable cross sections of the
bus connections from the TD 200
and from the
RT 10
to the bus-en-
abled Heatronic 3 are different:
B
Connect bus connections via a
junction box.
TD 200
1
2
4
B
B
RT 10
B
B
6 720 612 220-09.1J
ST 19
A
F
B
B
Heatronic 3
B
2
B
B
A
B
2
B
B
B
2
B
B
6 720 612 220-08.1J
100 mm
100 mm