Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 57

Commissioning the heating system
Charging scheme 10
Rotary lock valve and pellet hopper with vacuum
module and mole
Boiler charging via a rotary lock valve and a pellet hop-
per.
The pellet hopper is filled via a vacuum module and
mole in the pellet silo.
Fig. 46
Outputs
Plug number
214
215
216
Inputs
Plug number
241
243
245
248
251
Charging scheme 11
Rotary lock valve and pellet hopper with vacuum
module and extraction screw conveyor
Boiler charging via a rotary lock valve and a pellet hop-
per.
The pellet hopper is filled via a vacuum module and
extraction screw conveyor in the pellet silo.
Fig. 47
Commissioning, inspection, maintenance
(cont.)
Function
Motor, vacuum module
Motor, mole
Motor, rotary lock valve
Function
Safety limit switch, silo door
Thermal contact, rotary lock valve
Thermal contact, vacuum module
Proximity switch, pellet hopper
Proximity switch, suction shoe, transition
57