Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 42

Installation sequence
Electrical connections
Boiler with pellet hopper
D
C
B
A
Fig. 37
Drive, feed
A
Pellet hopper sensor
B
Light barrier
C
Note
Keep cables clear of rotating parts (e.g. chains, gears,
rotary lock valve).
42
(cont.)
1.
E
F
Line entry
D
Retaining plates
E
Ignition element
F