Technical data

13
Installation (for installers only)
6 720 617 760 (2008/09)
3.2 Disposal
B Dispose of packaging in an environmentally responsible man-
ner.
B When replacing components, dispose of the old parts in an
environmentally responsible manner.
3.3 Electrical connections
B BUS connection from the controller to other BUS subscribers:
Use electrical cable with the minimum specification H05 VV-...
(NYM-I...).
Permissible cable lengths from the BUS-enabled Heatronic 3 to
the controller:
B To avoid inductive interference, lay all bus cables seperately to
lines of 230 V or 400 V (minimum spacing 100 mm).
B In case of external inductive interference, shield the cables.
This ensures that the cables are shielded from external inter-
ference (e.g. heavy current cables, overhead wires, trans-
former stations, radio and television set, amateur radio
stations, microwave ovens etc).
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
Tab. 2