Siemens LMG2 Series Manual page 12

Other application examples
Burner without fan assistance and without «LP»
2 3 11 6
*
A G K
7421a04 /1098
* Note: different from LGB2...
Legend
AGK25... PTC resistor
AL Fault status signal (alarm)
BV... Fuel valve
Dbr... Wire link
EK2 Remote lockout reset button
FE Detector electrode
FS Flame signal
GP Gas pressure monitor
HS Main switch
K1...4 Internal relays
KL Low flame
LK Air damper
LKP Air damper position
12/16 CC1N7421E December 04, 1998
Burner with fan control via auxiliary contactor «HS» with «LP»
12 2 3
G P /S B
H S A G K 25
R /W
M
L
N
7421 a05/03 98
LP Air pressure monitor
LR Load controller
M Fan motor
MS Synchronous motor
NL Nominal load
QRA... UV detector
R Control thermostat / pressurestat
RV Gas regulation damper
SA Actuator SQN...
SB Safety limit thermostat
t Time
W Limit thermostat / pressure monitor
Z Ignition transformer
11 6
LP
Landis & Staefa Division