Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 51

Commissioning the heating system
Charging scheme 0
External charging
Fuel is requested via the potential-free output.
Fault evaluation of external charging via the potential-
free input.
ext
Fig. 37
Outputs
Plug number
222
Inputs
Plug number
241
246
Charging scheme 1
Flexible agitator discharge
Boiler is charged via flexible agitator discharge.
Fig. 38
Outputs
Plug number
218
Inputs
Plug number
240
241
244
Commissioning, inspection, maintenance
(cont.)
Function
External charging, potential-free
Function
Safety limit switch, silo door
Fault, external charging
Function
Motor, flexible agitator discharge
Function
Limit switch, flexible agitator discharge
Safety limit switch, silo door
Thermal contact, flexible agitator discharge
51