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Connection diagrams (for circuitry variants, see Connection examples) (cont'd)
LGK16...
A
P
B
C
D
A
3 13 12 14 4
1
2 21
SB
bv...
1(3)
H
EK2
Si
AL
LP
L
N
Building Technologies Division
5
6
7 16
d1
d2
GP
W
R
N
N
Z
M1
M2
1) When used in connection with QRA53.../QRA55..., earthing of terminal 22 is mandatory!
Caution!
Do not press lockout reset button (EK...) for more than 10 seconds!
Connect the safety valve as specified in the diagram provided by the burner
manufacturer.
z
m a
17
18
19
LR
SA
BV1
BV2
LK
BV1
ZBV
7785a02e/0604
20
9
11
10 8
22
2
z
v
a
m
M
BV3
BV2
TSA´, t3´, t4´, only:
LGK16.335
and LGK16.635
1
2
23 15
1
5
3 4
1
+
M
QRA5...
1)
22
24
ION
21/28
CC1N7785en
20.11.2017
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