Viessmann VITOTRONIC 100 GC1 Installation And Service Instructions Manual page 10

Heating system types
Circuit Diagram 2
Multi-boiler system with Therm-Control and three-way mixing valve
in conjunction with Vitorond 200, VD2A
LON LON connection (available connections with terminator)
A Heating circuit with mixing valves
B DHW tank
Plug
!
Outdoor temperature sensor
(only for Vitotronic 300-K)
?Flow
Flow temperature sensor,
common heating flow (only for
the Vitotronic 300-K)
?M2
Flow temperature sensor,
mixing valve (only for the
Vitotronic 300-K)
?M3
Flow temperature sensor,
mixing valve (only for the
Vitotronic 300-K)
?
Flow temperature sensor
Vitotronic 200-H
§
Boiler water temperature
sensor
%
DHW tank temperature sensor
(only for Vitotronic 300-K)
10
aJA
Therm-Control temperature
sensor
sÖM2
Heating circuit pump, mixing
valve (only for Vitotronic
300-K)
sÖM3
Heating circuit pump, mixing
valve (only for Vitotronic
300-K)
sÖ
Heating circuit pump Vitotronic
200-H
sK
DHW circulation pump (only
for the Vitotronic 300-K)
fÖ
Power supply, 120 VAC
60 Hz
Install the main isolator in
accordance with regulations
fA
Burner (stage 1)
gSA1
Motorized butterfly valve
gSM2
Mixing valve motor (only for
Vitotronic 300-K)
gSM3
Mixing valve motor (only for
Vitotronic 300-K)
gSM3
Mixing valve motor, Vitotronic
200-H
lÖ
Burner
(burner stage 2 / mod.)
aVD/aVH External connections
Please refer to the control
manual for the Vitocontrol-S,
VD2/CT3.