Technical data

22
Heating system designs
System version 7
Heating circuit and one low temperature heating circuit plus Vitorond with shunt pump
Vitocrossal 300, CT3
Vitorond 200, VD2
A Boiler with Vitotronic 100, GC1
B Vitocontrol-S, VD2/CT3/CM2
C DHW tank
D Mixing valve circuit
E Neutralizing system
Plug
! Outdoor temperature sensor
? Supply temperature sensor
common heating supply
? M2/M3 Supply temperature sensor
mixing valve circuit 2 or 3
§ Boiler temperature sensor
% DHW tank temperature sensor
aJA Temperature sensor T1
aJB Temperature sensor T2
sÖ M2/M3 Heating circuit pump mixing
valve circuit 2 or 3
sA DHW pump
sK DHW recirculation pump
sL Shunt pump
fÖ Power supply, 120 VAC,
60 Hz
fA Burner (burner stage 1)
gS A1 Motorized isolation valve
gS M2/M3 Mixing valve actuator
circuit 2 or 3
lÖ Burner
(burner stage 2 / mod.)
aVD/aVH External connections
(see page 44)
5351 340 v1.4
LON LON
LON LON
40
143 146
LON
LON
B
1
28
5
21
2
20 52
2
20 52
M2 M3
2
A
E
3
90
41
40
143 146
D D
C
A
17A
17B
3
90
41
40
143
146
52 A1
T2
T1
29