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Connection diagrams (cont'd)
LAL4...
Building Technologies
HVAC Products
Si
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 «EK...» for more than 10 seconds!
For the connection of the safety shutoff valve, refer to the plant diagram provided
by the burner supplier.
I
a
b
ar2
12
6
7
M1
M2
N
13
14
fr2
b
a
XII
II
X
VIII
V
IV
b
a a
b
a
b
a
b
15
17 19 9
16
18
LR
SA
a
v
M
Z
BV2
BV1
QRC1...
sw
br
bl
22
23
1
QRB1...
22
23 24
V
FR
a
b
XIV
a
b
VII
a
b
ar3
III
VI
a
b
SM
M
20
1110
8
z
m
LK
7153a17/0204
15/20
CC1N7153en
20.04.2005
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