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Connection diagrams
LAL1...
LAL2... / LAL3...
Siemens Building Technologies
HVAC Products
S
L
H
SB
1
AS
br1
a b
a
ar1
4
W
R
B
5
fr1
a
b
IX
XI
XIII
XII
a
a
b
b
EK1*
AR
br2
L1
M
E
A
3
21
2
1 (3)
AL
EK2*
N
L
H
SB
1
AS
br1
a b
ar1
4
W
R
LP
B
5
fr1
a
b
IX
XI
XIII
b
a
a
b
AR
EK1*
br2
L1
E
M
BR
A
3
21
2
1 (3)
H
AL
EK2*
N
Do not press the lockout reset button for more than 10 seconds!
For the connection of the safety shutoff valve, refer to the plant diagram provided by
the burner supplier.
I
b
ar2
6
7
M2
M1
N
fr2
X
II
VIII
V
IV
b
aa
b a
b
a
BR
15
16
18
17
19
9
SA
H
v
a
Z
BV1
BV2
I
a
b
ar2
12
6
7
M1
M2
N
13
14
fr2
NTC
b
a
XII
II
X
VIII
V
IV
b
a a
b
a
b
a
15
17 19 9
16
18
SA
a
v
Z
BV1
BV2
QRC1...
br
bl
sw
23
22
1
QRB1...
22
23 24
V
FR
a
b
XIV
a
b
VII
a
b
ar3
III
VI
b
a
b
SM
M
20
11
10
8
LR
z
m
M
LK
7153a07/0496
RAR...
+
22
23 24
QRB1...
22
23 24
V
FR
a
b
XIV
a
b
VII
a
b
ar3
III
VI
b
a
b
SM
M
20
1110
8
LR
z
m
LK
M
7153a08/0598
15/20
CC1N7153en
14.10.2002
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