Siemens LAL2.25 - Page 21

21/24
Building Technologies Division CC1N7153en
21.09.2016
Connection examples and program sequence (cont’d)
2-stage expanding flame burner
M
N
SA
Z
BV1
IV
13
12
N
3
BV2
LR
11
716
4
9
LK
5 210
8
20
15
16
(t3´/t3n)
(t3)
17
18 19
9
11
10
8
IIIIII
7153a05/1195
LR
SA
L...
BV1
BV2
Load control with a 2-position controller.
During burner off times, the air damper is closed.
FS
BV2
min.
LK
0...
M
R
100%
LR
BV1
M1
M2
Z
~
M
P
R
T
t12
t4
t16
t5
A
B
CD
t11
t13
t6
t7 t1
t3
t3n
TSA
t3´
7153a09/0498
Control of actuator according to the single-wire control
principle.
 For actuator «SA» type SQN,
see Data Sheet N7808; for other connections,
refer to «Connection diagrams»
Pre- and postignition when the ignition
transformer is connected to terminal 15
Modulating expanding flame burner
16 8
20
LR
N
9
11
M
10
Z
N
17
18
19
RV
LK
SA
a
m
z
BV1
7153a06/1195
L...
LR
SA
BV1
RV
Load control with modulating controller with galvanically
separated control contacts for positioning directions
«OPEN» and «CLOSE».
R
LR
t5
t11
t12
t13
FS
min.
LK
0...
M
100%
RV
A
BV1
M2
Z
~
M
P
R
M1
T
t4
t3
t7
t1
TSA
B
t6
C
D
7153a10/0498
During burner off times, the air damper is fully closed.
When using actuators with end switch «z» for the
«CLOSED» position, terminals 10 and 11 must be
interconnected.
For other connections, refer to «Connection diagrams».