Viessmann Vitoligno 250-S Installation And Service Instructions For Contractors page 64

Connection and wiring diagram
230 V plugs
Plug
fA
Fig. 41
Assignment
1
PE
2
3
5
6
7
Plug
aBA
Fig. 42
Assignment Function
1 Fault message (common contact)
2 Fault message
64
Function
Flue gas fan L
—
Flue gas fan N
—
—
—
—
Additional information
—
—
—
—
—
—
—
Additional information
Floating contact
Max. 250 V, 2 A