Viessmann VITOTRONIC 100 Installation And Service Instructions Manual page 19

System version 5
Raising the return temperature for each boiler with a shunt pump
Vitogas 100
Vitomax 100, Vitomax 200 and Vitomax 300
Vitoplex 100, type SX1, Vitoplex 200, type SX2, and Vitoplex 300, type TX3
Vitorond 200
B
A Boiler with Vitotronic 100
B DHW cylinder
C Heating circuit with mixer
Plug
§
Boiler water temperature
sensor
aJ A
Temperature sensor T1
aJ B
Temperature sensor T2
sÖ A1
Mixers closed with
external heating circuit
control units
sL
Shunt pump
3
17B T2
17A
T1
A
fÖ
fA
gS A1
lÖ
aVD/aVH External hook−up
Heating system designs
C
3
17B
17A
T1
Mains electrical connection,
230V~/50 Hz
Burner stage 1
Motorised butterfly valve
Burner stage 2/mod.
(see page 69)
C
T2
A
19