Overview Of Electrical Connections - Viessmann Vitodens 050-W Installation And Service Instructions Manual

Installation sequence
Electrical connections

Overview of electrical connections

Note
For further information on the connections, see the fol-
lowing chapters.
A
L N
B
L N N 1 L N L L N N L N L N L
40 96 20
Fig. 16
Connections to 230 V~ plugs
Power supply
A fÖ
Configurable floating input
B
230 V output
230 V room thermostat connection
Cylinder temperature sensor (system boiler)
C
Remote control (OpenTherm controller)
D
Outside temperature sensor
E
Heating circuit pump
sÖ
Fan motor
a-Ö
24
(cont.)
10 987654321 654321
35 54 21 X7
100
X20
, 230 V
lH
8 7 654321 9 8 7 654321
X6 X2 X9 X12 X5
dG Gas solenoid valve
Ignition unit/ionisation
gF
No function assigned
sA
Equipotential bonding (earth conductor)
X sÖ
Note on connecting accessories
When connecting accessories observe the sep-
arate installation instructions provided with
them.
C D E
S.T.S O.T O.T.S