Viessmann VITODENS 111-W Installation And Service Instructions Manual page 53

Connection and wiring diagram
Fig. 48
Diverter valve stepper motor
A
Ignition/ionisation
B
Vitotrol 100
C
Type RT
■
Type UTA
■
■ Type UTDB
■ Type UTDB-RF
Power supply 230 V/50 Hz
D
Remote control (OpenTherm device) or mixer
E
extension kit (OpenTherm)
Outside temperature sensor (accessories)
F
Time switch (accessories) or Vitotrol 100, type
G
UTDB-RF2
Connection and wiring diagram
Gas pressure switch (accessories)
H
X ... Electrical interface
Boiler water temperature sensor
§
Outlet temperature sensor
$
Cylinder temperature sensor
%
Flue gas temperature sensor
aG
Circulation pump (heating water)
sÖ
sA Cylinder loading pump
Gas solenoid valve
dG
Temperature limiter
fJ
Fan motor 230 V~
a-Ö
A Fan control
a-Ö
53