Technical information

Control Overview—External Controls Connections
LON Connections—System Overview
Applicable for Vitotronic 100, GC1, and Vitocontrol-S, CT3/VD2
IMPORTANT
Refer to control specific manual
with respect to proper addressing
when installing the LON
communication card for single and
multiple boilers.
CAUTION
Static sensitive components may be
damaged by improper handling or
work within the control. Ensure all
possible measures are taken to
eliminate build-up of static electricity.
Termination Resistor
Termination Resistor
1
2
Technical Information
Distance between controls with Viessmann
communication cable 7m/23Ft.
Up to three extensions between controls totalling
21m/69Ft in length.
Communication with up to 99 participants on with
a total length of 900m/3000Ft.
1 Vitocontrol-S, CT3/VD2, MW1
control with communications
card and end of line termination
resistor.
2 Boiler control Vitotronic 100,
GC1. Communication with up
to 4 boiler controls.
Interconnected with CAT-5
communication with RJ45
connector ends.
Section 5.1
Section 5
Connection Overview
5346540 v1.0 09/2006 Technical information subject to change without notice
102