Viessmann Vitoligno 300-C Installation And Service Instructions Manual page 51

Commissioning, inspection, maintenance
Commissioning the heating system
(cont.)
Setting "1"
Setting "1" (factory setting) for pellet supply via vac-
uum supply system from a pellet silo and for discharge
with manual changeover unit from a pellet storage
room or pellet box
Fig. 36
Setting "2"
Pellet supply with screw conveyor discharge
For pellet supply with screw conveyor discharge from a
pellet storage room and onward transportation via a
vacuum supply system
Fig. 37
51