Viessmann VITOTRONIC 100 Installation And Service Instructions Manual page 50

Heating system designs
System version 17
Three−way mixing valve, several heating circuits and one low temperature
heating circuit
Vitocrossal 300
Vitomax 100, Vitomax 200 and Vitomax 300
Vitoplex 100, type SX1, Vitoplex 200, type SX2, and Vitoplex 300, type TX3
B
A Boiler with Vitotronic 100
B DHW cylinder
C Heating circuit with mixer
D Neutralising system
50
3
A
D
Plug
§
Boiler water temperature
sensor
aJ A
Temperature sensor T1
sL
Boiler circuit pump
fÖ
Mains electrical connection,
230V~/50 Hz
fA
Burner stage 1
gS A1
Three−way mixing valve
lÖ
Burner stage 2/mod.
aVD/aVH External hook−up
(see page 69)
C C
3
17A
T1
A