Operating instructions
A
D
3
90
41
40
143
146
143
146
C C
B
A
17A
17B
3
90
41
40
143
146
52 A1
T2
T1
29
44
Heating system designs
System version 15
Several heating circuits, one low temperature heating circuit and low
temperature boiler with shunt pump
Vitocrossal 300
Vitogas 100
Vitomax 100
Vitoplex 100, type SX1, Vitoplex 200, type SX2, and Vitoplex 300, typeTX3
Vitorond 100
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
aJB Temperature sensor T2
sL Shunt pump
fÖ Mains electrical connection,
230V~/50Hz
fA Burner stage 1
gSA1 Motorised butterfly valve
lÖ Burner stage 2/mod.
aVD/aVH External hook−up
(see page 69)
5862730GB