Viessmann VITOTRONIC 100 GC1 Installation And Service Instructions Manual page 23

Circuit Diagram 9
Several heating circuits and one mixing valve heating circuit
Single-boiler system with Vitocrossal 300
21
5
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
%
DHW tank temperature sensor
(accessory)
sA
DHW pump
fÖ
Power supply connection,
120 VAC
Heating system types
C C
fA
Burner (1st stage)
lÖ
Burner (2nd stage/modulating)
aVD
Connection of external
equipment (see page 60)
aVH
Connection of external
equipment (see page 60)
23