Siemens LMV50 Series Manual page 80

Legend to the sequence diagrams
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Building Technologies
Phases
00 Lockout phase
01 Safety phase
10 Homerun
12 Standby (stationary)
21 Shutoff valve ON (start release)
22 Fan motor ON
24 Prepurge position
30 Prepurge time (tv1)
32 Prepurge time (tv)
34 Prepurge time (tv2) (flue gas recirculation FGR)
36 Ignition position
38 Preignition (Z) ON
40 Burner valve ON
42 Ignition OFF
44 Interval 1 (ti1)
nd
50 2 safety time
52 Interval 2 (ti2)
54 Low-fire position
60 Operation 1 (stationary)
62 Operation 2
Low-fire position
70 Postburne time
72 Postpurge position
74 Postpurge time (tn1)
76 Flue gas recirculation postpurge position
78 Postpurge time (tn3)
79 Direct start
80 Valve proving evacuating time
81 Valve proving time atmospheric pressure
82 Valve proving filling time
83 Valve proving time gas pressure
Basic Documentation LMV5...
5 Sequence diagrams
CC1P7550en
22.05.2018