Siemens LMV37.4 Series Basic Documentation page 70

Fuel valve control program
Figure 36: Gas – fuel valve control - program
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Gas (always modulate)
Basic documentation LMV37.4...
7 Basic unit
Legend for fuel trains:
*) Not used
1) For the valve proving function, the
pressure switch-min (Pmin) is
located between the fuel valve
(V1 / V2)
HO Heavy oil)
LO Light oil
No Normally Open
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
7548f01e/0309
CC1P7546en
20.09.2013