Viessmann Vitodens 100 Series Installation And Service Instructions Manual page 84

Designs
Connection and wiring diagram
X13 Power supply WLAN module
(24 V)
T5/TR1-1 Ignition/ionisation
Boiler water temperature
§
sensor
Outlet temperature sensor
$
(gas condensing combi
boiler)
Cylinder temperature sensor
%
(gas condensing system
boiler)
84
(cont.)
Flue gas temperature sensor
aG
Circulation pump 230 V~
sÖ
Motor, diverter valve
dÖ
Gas solenoid valve
dG
Temperature limiter
fJ
Fan control
a-ÖA
Flow sensor
aVL
Water pressure sensor
aND