Viessmann VITOTRONIC 100 Installation And Service Instructions Manual page 29

System version 8
Codes must be set on every Vitotronic 100.
Required coding
01 : 2 Multi−boiler system with cascade control via LON BUS
01 : 3 Multi−boiler system with external cascade control via switching
contacts
02 : 2 Modulating burner operation
03 : 1 Oil fired operation (irreversible)
0d : 1 Temperature sensor T1 controls the mixers of downstream heating
circuits
Automatic changeover
Connecting temperature sensor T1 to plug aJA
4A: 1
*1
If required.
(cont.)
*1
Heating system designs
*1
29