Operating instructions
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, typeTX3
Vitorond 200
A Boiler with Vitotronic 100
B DHW cylinder
C Heating circuit with mixer
Plug
§ Boiler water temperature
sensor
% Cylinder temperature
sensor (accessories)
aJA Temperature sensor T1
*1
aJB Temperature sensor T2
sA Cylinder primary pump
(accessories)
sL Shunt pump
fÖ Mains electrical connection,
230V~/50Hz
fA Burner stage 1
gSA1 Mixer motor return
temperature raising facility
lÖ Burner stage 2/mod.
aVD/aVH External hook−up
(see page 69)
*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).
5862730GB
C C
B
A
90
41
40
143
146
5
21
52
A1
3
17A
17B
29
T2
T1