Viessmann Vitoligno 250-S Installation And Service Instructions For Contractors page 65

230 V plugs
(cont.)
Plug X1
Diagram, assignment 1 - 6
Fig. 43
Diagram, assignment 7 - 9
Fig. 44
Assignment Function
1 Mains L
2 Mains PE
3 Mains N
4 Main load burner
5 Buffer cylinder valve, open
6 Buffer cylinder valve, close
7 Boiler valve, open
8 Boiler valve, close
9 Boiler circuit pump
Connection and wiring diagram
X1
Additional information
Power cable
(Max. fuse rating 6 A)
—
Max. 2 A (fuse rating 4 A)
Max. 0.5 A (fuse rating 4 A)
Max. 0.5 A (fuse rating 4 A)
Max. 0.5 A (fuse rating 4 A)
Max. 0.5 A (fuse rating 4 A)
Max. 2 A (fuse rating 4 A)
65