Siemens LMV5 Series Technical Instructions page 125

LMV Series
Pilot Ignition (Pilot From Between Main Gas Valves V1 and V2)
Legend:
ACT = Actuator
V1 = Upstream gas valve (main)
V2 = Downstream gas valve (main)
PV = Pilot valve
SCC Inc.
Direct Spark Ignition
Pilot Ignition (Pilot Before Main Gas Valves V1 and V2)
Page 7
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SV = Shutoff (safety) valve
PS = Pressure switch
VP = Valve proving
Technical Instructions
Document No. LV5‐1000
Section 4