Viessmann VITOTRONIC 100 Installation And Service Instructions Manual page 51

System version 17
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 Only with Vitotronic 100 for low temperature boilers:
Oil fired operation (irreversible)
0C : 1 Only with Vitotronic 100 for low temperature boilers:
Constant return temperature control
0d : 0 Only with Vitotronic 100 for Vitocrossal 300:
Without Therm−Control
4d : 2 Only with Vitotronic 100 for low temperature boilers:
Boiler circuit pump on plug sL
Automatic changeover
4A: 1 Only with Vitotronic 100 for low temperature boilers:
Connecting temperature sensor T1 to plug aJA
*1
If required.
(cont.)
*1
*1
Heating system designs
51