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Building Technologies Basic Documentation LMV27... CC1P7541en
7 Basic unit LMV27 17.12.2018
Gas (always modulate)
V1 PV V1 V2
PILOT
ignition 2
Gp2
PV V1 V2
Legend for fuel trains:
*) Not used
1) 1) For the valve proving function, the
pressure switch-min is
located between the fuel valve
V1 / V2
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)
TSAx Safety time
V Fuel valve
Figure 39: Gas trains – fuel valve control
Fuel valve control
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