Siemens LMV27.100x2 Basic Documentation page 68

Light oil direct ignition
modulating with 2 fuel valves
(Operating mode 12)
(Operating mode 12)
Fuel valve control
Figure 49: Light oil - direct ignition - fuel valve control
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Modulating burner (without shutdown facility for adjustable head)
LO-2V
Program
P
min
P
max
Figure 47: Light oil – direct ignition, modulating, without shutdown facility for adjustable head
Modulating burner (with shutdown facility for adjustable head)
LO-2V
Program
V1
P
min
V2
P
max
Figure 48: Light oil – direct ignition, modulating, with shutdown facility for adjustable head
Light oil (transformer for direct ignition)
Basic Documentation LMV27...
7 Basic unit LMV27
V1
1)
V2
1)
M
M
Legend for fuel trains:
1) Series connection of two DC 115 V
valves
LO Light oil
No Normally Open
LK Air damper
P LT Valve proving
Pmax Pressure switch-max
Pmin Pressure switch-min
PV Pilot valve
SA Actuator
SV Safety valve (outdoors)
TSAx Safety time
V Fuel valve
Z Ignition
CC1P7541en
17.12.2018