Operating instructions
A
D
3
90
41
40
143
146
143
146
B
C C
A
17A
3
90
41
40
143
146
52 A1
29
T1
50
Heating system designs
System version 17
Three−way mixing valve, several heating circuits and one low temperature
heating circuit
Vitocrossal 300
Vitomax100, Vitomax200 and Vitomax300
Vitoplex 100, type SX1, Vitoplex 200, type SX2, and Vitoplex 300, typeTX3
A Boiler with Vitotronic 100
B DHW cylinder
C Heating circuit with mixer
D Neutralising system
Plug
§ Boiler water temperature
sensor
aJA Temperature sensor T1
sL Boiler circuit pump
fÖ Mains electrical connection,
230V~/50Hz
fA Burner stage 1
gSA1 Three−way mixing valve
lÖ Burner stage 2/mod.
aVD/aVH External hook−up
(see page 69)
5862730GB