Viessmann VITOTRONIC 100 GC1 Installation And Service Instructions Manual page 25

Circuit Diagram 10
Single-boiler system with several heating circuits and one mixing valve heating circuit
in conjunction with Vitocrossal 300
21
5
B
A Boiler with Vitotronic 100, GC1
B Domestic hot water tank
C Heating circuit with mixing valve
D Mixing valve heating circuit
or
E Underfloor heating circuit with
mixing valve
F Limit thermostat (max. limit)
G Neutralizing unit
3
G A
Plugs
§
Boiler temperature sensor
%
DHW tank temperature sensor
(accessory)
sÖ A1 Close mixing valves with
external heating circuit controls
sA
DHW pump
Heating system types
C D
fÖ
Power supply connection,
120 VAC
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)
E
F
25