Viessmann VITOTRONIC 100 GC1B Service Manual Page 17

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Heating system types
17
Circuit Diagram 6
Multi-boiler system with common supply pump and low-pressure manifold
in conjunction with Vitorond 200, VD2
A Boiler with Vitotronic 100, GC1
B Domestic hot water tank
C Heating circuit with mixing valve
D Common supply pump
Plugs
§ Boiler temperature sensor
aJ A Temperature sensor T1
Power supply connection,
120 VAC
fA Burner (1st stage)
gS A1 Motorized isolation valve
Burner (2nd stage/modulating)
aVD Connection of external
equipment (see page 51)
aVH Connection of external
equipment (see page 51)
5351 338 v1.6
B
3
17A
90
41
40
146
143
52 A1
A A
3
17A
90
41
40
146
143
52 A1
T1 T1
CC
D
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