Viessmann VITOTRONIC 100 Installation And Service Instructions Manual page 22

Heating system designs
System version 6
Raising the return temperature with a common shunt pump
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
22
T2
17B
3
17A
T1
A
Plug
§
aJ A
aJ B
sÖ A1
sL
fÖ
fA
gS A1
lÖ
aVD/aVH External hook−up
C
3
17A
Boiler water temperature
sensor
Temperature sensor T1
Temperature sensor T2
Mixers closed with external
heating circuit control units
Shunt pump
Mains electrical connection,
230V~/50 Hz
Burner stage 1
Motorised butterfly valve
Burner stage 2/mod.
(see page 69)
C
T1
A