Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 49

Vitoligno 300-C Installation/Service
Electrical Connections
Motor connections
Sensor connections
System limit switch connections
(continued)
DIN rail X1
DIN rail X2
DIN rail X2
Connections of motors are dependant on fuel storage and
fuel extraction system being used.
Legend
A Vacuum module (when using the vacuum feed system)
B Flexible screw conveyor motor
(when using flexible screw conveyor)
C Storage room extraction auger
(when using storage room with sloping floor)
D External charging (dry contact)
Legend
A Pellet level sensor - storage room
B Pellet level sensor - flexible screw - if not, a field
supplied jumper may be required, refer to page 42
If a limit switch is not used, a field supplied jumper must
be installed.
Legend
A Safety limit switch silo door dry contact
(field supplied)
Installation
49