Viessmann VITOTRONIC 100 Installation And Service Instructions Manual page 14

Heating system designs
System version 3
Raising the return temperature with shunt pump and three−way mixer
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
%
Cylinder temperature
sensor (accessories)
aJ A
Temperature sensor T1
aJ B
Temperature sensor T2
sA
Cylinder primary pump
(accessories)
sL
Shunt pump
*1
For Vitoplex, an immersion sensor is part of the standard delivery. The sensor well
delivered with the boiler can be removed for application as T1 (seal port with a plug).
14
17B
21 17A
5 3
*1
T2
T1
A
fÖ
Mains electrical connection,
230V~/50 Hz
fA
Burner stage 1
gS A1
Mixer motor return
temperature raising facility
lÖ
Burner stage 2/mod.
aVD/aVH External hook−up
(see page 69)
C C