Viessmann VITOTRONIC 100 GC1 Installation And Service Instructions Manual page 27

Circuit Diagram 11
Multi-boiler system with several heating circuits and one mixing valve heating circuit
in conjunction with Vitocrossal 300
B
A Boiler with Vitotronic 100, GC1
B Domestic hot water tank
C Heating circuit with mixing valve
D Neutralizing unit
3
D A
Plugs
§
Boiler temperature sensor
fÖ
Power supply connection,
120 VAC
fA
Burner (1st stage)
gS A1 Motorized isolation valve
lÖ
Burner (2nd stage/modulating)
Heating system types
C
3
D A
aVD
Connection of external
equipment (see page 60)
aVH
Connection of external
equipment (see page 60)
C
27