Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 183

Combustion flow chart
Fig. 115
A' Burner start initiation
A Flushing phase
B Combustion chamber filling
C Ignition
D 2nd ignition phase
E Control mode
F Burnout phase
G Boiler cleaning
H Idle state
Control mode
A
ra1 Flushing speed
ra2 Ignition speed
e1 Charge time entry
z Ignition on
l1 Air damper calibration
l2 Air damper flushing position
l3 Air damper ignition position
l4 Air damper 2nd ignition phase (controlled)
w1 Heat exchanger cleaning
r1 Grate cleaning
ea Ash removal motor
Function description
183