Siemens LMV5 Series - Fuel Train Applications (Examples) [contd]; Direct Ignition with Heavy Oil (Multistage); Direct Ignition with Heavy Oil (Modulating); Heavy Oil Fuel Valve Control

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Building Technologies Division CC1N7550en
Industry Sector 24.05.2011
Fuel train applications (examples) [cont´d]
V2
V3
No
Ph
V1
1)
2-stage burner
LMV5...- heavy oil direct start - input
V2
1)
V1
LMV5... - heavy oil direct start - input
Modulating burner
Circulation from phase 38, max. 45 s
as soon as direct heavy oil start =
ON in phase 38
→ Phase change in phase 40
Direct heavy oil start=
OFF at the end of phase 38
→ Repetition (max. 3 times in total)
Heavy oil (direct transformer ignition)
LK
position
Stage operation
Phase 38
max. 45 s
MIN
MAX
Legend (fuel trains)
HO Heavy oil
LK Air damper
TSA Safety time
V Fuel valve
Z Ignition
&
Note on dual-fuel burner!
Gas trains G, Gp1 and Gp2
1)
can be randomly combined with oil trains LO and HO
for operation with dual-fuel burners since these fuel trains operate independently.
Caution!
Oil trains LOgp and HOgp are designed for ignition with a gas pilot. They must
only be combined with a special gas train Gp2 for operation with a dual-fuel
burner.
1)
With Gp2 permitted with HW 01.C0, SW V01.40 or higher.
Direct ignition with
heavy oil, multistage
Direct ignition with
heavy oil, modulating
Fuel valve control