Siemens LMG2 Series - Internal Diagrams; LMG21;LMG25 Internal Diagram; LMG22 Internal Diagram

Landis & Staefa Division CC1N7421E December 04, 1998 15/16
EK Lockout reset button (internal) NT Power section
FSV Flame signal amplifier Si Fuse
Internal diagram
LMG21... / LMG25...
NT
12 2
R/W/GP/SB
N
AL
K1
10
K2
7
Z
3
K3
K4
4 5
BV1
BV2
EK2
8
6
LP
11
FSV
1
FE
Control of microcontroller
7421a01e/1298
L
Si
M
RESET
EK
FS green
AL red
LMG22...
NT
12 2
R/W/GP/SB
N
AL
K1
10
K2
7
Z
3
K3
K4
4
5
BV1
BV2
EK2
8
6
LP
11
FSV
1
FE
Control of microcontroller
RESET
7421a02e/1298
9
M
LR
SA
L
EK
Si
M
BV2
FS green
AL red
Legend