Viessmann Vitoligno 200-S Installation And Service Instructions Manual page 95

Connection and wiring diagram
230 V connections
N
PE
L
STB
PE
N
STB
L
LHS
NHS
1
PE
2
1
PE
2
1
MAX
2
250VAC/5A
3
1
MAX
2
250VAC/5A
3
L
M
PE
1 ~
N
Fig. 62
Boiler circ pump
sL
Power supply 230 V, 50 Hz
fÖ
A Central fault message
gÖ
Ignition
gF
Enable additional heat source
jL
Flue gas fan
a-Ö
Connectors a;A and a;S
buffer cylinder control valve
a;A
Valve connection
N
Y2
Y1
(cont.)
PE PE 1 2
Y1Y2 PE
Y1Y2 PE N N
Plug connection Colour
N Blue
L2 White
L1 Black
Connection and wiring diagram
L
PE N PE N
M
1 ~
High limit safety cut-out and ON/OFF switch
aBÖ
Low water indicator
aBS
Water pressure switch
aBD
Cylinder valve
a;A
Boiler valve
a;S
Description
Neutral conductor
Actuating signal CLOSE (230 V AC)
Actuating signal OPEN (230 V AC)
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