Viessmann VITOTRONIC 100 Installation And Service Instructions Manual page 36

Heating system designs
System version 11
Required coding
02 : 2 Modulating burner operation
0d : 0 Without Therm−Control
Automatic changeover
00 : 2 With DHW cylinder
Vitocrossal 300 is operated via the
boiler control unit
modulating burners are regulated.
*1
If required.
36
(cont.)
two−stage or
*1