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Building Technologies Basic Documentation LMV27... CC1P7541en
7 Basic unit LMV27 17.12.2018
Modulating burner (without shutdown facility for adjustable head)
P
max
1)
M
P
min
V1
7541s07e/1007
1)
LO
Program
Figure 44: Light oil - direct ignition modulation
Modulating burner (with shutdown facility for adjustable head)
1)
V1
M
7541s08e/1007
P
min
P
max
LO
Program
Figure 45: Light oil - direct ignition modulation
Light oil (transformer for direct ignition)
LO
Operation
Bild 421e/1013
Figure 46: Light oil - direct ignition - fuel valve control
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
Light oil direct ignition,
modulating
(Operating mode 4, 22)
(Operating mode 4, 22)
Fuel valve control
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