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0006160278_201804
LEGEND
AL
Alarm device
Dbr
Terminal bridge
i/reset (EK1)
Release button (“info” push button)
EK2
Remote release button
FSV
Flame signal amplifier
ION
Ionisation probe
K...
Relay contact
LED
Three-colour warning light
LP
Air pressure switch
LR
Load controller
LR-OPEN
Load controller OPEN position
LR-CLOSED
Load controller CLOSED position
M
Fan motor
NT
Power supply unit
P LT
Pressure switch - seal control
Pmax
Max pressure switch
Pmin
Min pressure switch
POC
Valve closing control (proof of closure)
QRA
Flame detector
R
Thermostat or pressure switch
SK
Safety Loop (safety circuit)
SV
Safety valve
V1
Fuel valve
V2
Fuel valves
Z
Ignition transformer
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Input/output signal 1(ON)
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Input/output signal 2 (OFF)
Allowed input signal 1 (ON) or 0 (OFF)