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Heating system types
13
Circuit Diagram 4
Single-boiler system with shunt pump and return valve for elevating the return temperature
in conjunction with Vitorond 200, VD2
A
Boiler with Vitotronic 100, GC1
B
Domestic hot water tank
C
Heating circuit with mixing valve
Plugs
§
Boiler temperature sensor
%
DHW tank temperature sensor
(accessory)
aJ
A
Temperature sensor T1
aJ
B
Temperature sensor T2
sA
DHW pump
sL
Shunt pump
fÖ
Power supply connection,
120 VAC
fA
Burner (1st stage)
gS
A1 Mixing valve motor for raising
the return temperature
lÖ
Burner (2nd stage/modulating)
aVD
Connection of external
equipment (see page 60)
aVH
Connection of external
equipment (see page 60)
*1
On the Vitorond the boiler supply and return are at the rear of the boiler.
5
3
5
1
3
3
8
v
1
.8
B
C
C
A
9
0
4
1
4
0
1
4
6
1
4
3
3
17A
17B
T1
T2
*1
2
9
5
21
A
1
5
2
Содержание Vitotronic 100 GC1
Страница 43: ...Installation 43 Overview of Electrical Connections VD2 VD2A CT3 only continued 5351 338 v1 8 29 20 A1 ...
Страница 44: ...Installation 44 Overview of Electrical Connections CM2 only continued 5351 338 v1 8 ...
Страница 128: ...Additional information 128 Wiring Diagrams continued Line voltage motherboard 5351 338 v1 8 A11 A3 floating ON ON ...
Страница 131: ...Additional information 131 Parts List 5351 338 v1 8 ...