Siemens LMV36.520 Series - Page 82

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Building Technologies Division Basic documentation LMV36... CC1P7544en
Infrastructure & Citiies Sector 7 Basic unit 25.09.2013
Modulating burner (without shutdown facility for adjustable head)
LO
Program
V1
P
max
M
P
min
1)
1)
Figure 52: Light oil direct ignition, modulating
Modulating burner (with shutdown facility for adjustable head)
LO
Program
V1
P
max
M
P
min
1)
Figure 53: Light oil ignition, modulating
Light oil (transformer for direct ignition)
LO
V3
V2
MIN
Air damper
position
Stage operation
Figure 54: Light oil direct ignition - fuel valve control - program
Legend for fuel trains:
1) Series connection of 2 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)
TSA... Safety time
V Fuel valve
Z Ignition
Light oil direct ignition,
modulating
(Operating mode 4, 22)
(Operating mode 4, 22)
Fuel valve control program