Viessmann VITOTRONIC 200 Installation And Service Instructions Manual page 13

Vitotronic 200, HO1B and 300-K, MW2C Installation/Service
Preparing Boilers for Cascade Mode - Vitocrossal 300 CU3A
LON communication module
each Vitocrossal 300 CU3A comes with a LON
communication module pre-installed.
1. Installing the cascade communication module/LON
communication module to the Vitotronic 200.
Legend
A Vitotronic 300-K
B LON cable
C Vitocrossal 300 CU3A with Vitotronic 200
Legend
A LON connection to Vitotronic 300-K
B LON communication cable
C Terminal connection on the LON communication
module
D LON communication module
Installation Sequence
(continued)
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