Technical data

9
Heating system designs
System Version 1
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)
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
(see page 44)
5351 340 v1.4