Fuel Train Applications (Examples); Direct Gas Ignition; Gas Pilot Ignition 1; Gas Pilot Ignition 2 - Siemens LMV5 Series Basic Documentation

Direct gas ignition

Gas pilot ignition 1

Gas pilot ignition 2

Fuel valve
control program
Operation
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Fuel train applications (examples)

Program
SV
Program
SV
Program
SV
Gas
Direct trafo ignition
G
*)
PV V1 V2 PV
ts 1
ts 2
Basic Documentation LMV51...
3 Fuel train applications (examples)
G
Direct ignition
V1
PS
min
Gp1
Gas pilot
V1
PS
min
Gp2
Gas-Pilot
V1
PS
min
(always modulating)
Pilot ignition 2
Pilot ignition 1
Gp1
Gp2
PV V1
V1 V2
V2
PS PS
VP max
V2
PS PS
max
VP
PV
V2
PS PS
max
VP
PV
V2
Legend to fuel trains:
*) Not used
1) Series connection of two 115 V
valves (each requiring approx. 25 VA
control power)
2) Preheating device
V Fuel valve
VP Gas valve proving
PS Pressure switch
HE Heating element
HO Heavy oil
LO Light oil
ACT Actuator
NO
Normally Open
SV Shutoff valve (outside the building)
PV Pilot valve
ACT
7550s01E/0202
ACT
7550s02E/0202
ACT
7550s17E/0202
CC1P7550en
01.10.2003