Siemens LMV37.4 Series Basic Documentation page 72

Light oil direct ignition,
modulating
(Operating mode 4, 22)
(Operating mode 4, 22)
Fuel valve control program
Figure 42: Oil direct ignition - fuel valve control - program
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Modulating burner (without shutdown facility for adjustable head)
Program LO
P
min
1)
7546s07e/1107
Figure 40: Light oil direct ignition, modulating
Modulating burner (with shutdown facility for adjustable head)
Program LO
P
min
1)
Figure 41: Light oil ignition, modulating
Light oil (transformer for direct ignition) and heavy oil without separate Circulation
control (transformer direct ignition)
Basic documentation LMV37.4...
7 Basic unit
V1
1)
P
max
M
V1
P
max
M
Legend for fuel trains:
MAX
MIN
1)
HO
LO
No
LK
P LT Valve proving
Pmax Pressure switch-max
Pmin Pressure switch-min
PV
SA
SV
TSA... Safety time
V
Z
7546s08e/1107
Series connection of two DC 115 V
valves
Heavy oil)
Light oil
Normally Open
Air damper
Pilot valve
Actuator
Safety valve
(outdoors)
Fuel valve
Ignition
CC1P7546en
20.09.2013