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Connection examples with vent pipe to atmosphere using burner controls type LGB2..., LGB3... / LGB4... /
LMG2...
For other connections, refer to the connection diagram of the relevant burner control.
Valve proving test prior to burner startup
LGB2.../3.../4.../LMG2...
12
H
L
N
SB / R / W
1
3
6
III
ar2
17
2
4
5
DW
C
Connection examples with vent pipe to atmosphere using burner controls type LFE..., LFL... or LGK..., or the
control unit LEC...
Check during the prepurge time (min. 60 seconds) and
following immediately the controlled shutdown in plants
with vent pipe to atmosphere. Delay on make of relay
d >2 seconds.
2)
Expanding flame burner or interrupted pilot burner
LFE1
8
9
18 19
LEC1
LFL1...
4
5
12 13
LGK16...
W
R
LP
d
2
EK2
1
18
3
4
5
DW
16
III
ar2
17
15
14
2
GP
C
N
12/21
Building Technologies Division
7696a05/0403
3
4
5
A1
A2
M
20
12
14
19
22
hr2
XI
hr1
15
16
11
23
LDU11
GP
B
E
Plants with vent pipe to atmosphere
LDU
DW
GP
E
B
C
7696a10/0401
4
5°/10°°
2)
14
18°/17°°
2)
A
N
8
10
6
12
19
23
20
hr2
I
XI
V
hr1
7
11
9
LDU11
B
E
Valve proving test following immediately the controlled
LGB2.../3.../4.../LMG2...
10
H
L
N
21
24
16
14 15
N
13
2
AL
A
7696s01/0695
Check following immediately the controlled shutdown
2)
Expanding flame burner or interrupted pilot burner
LFE1
8
LEC1
LFL1...
4
LGK16...
EK2
18
1
3
DW
16
ar2
17
15
14
22
21
24
GP
N
N
13
AL
shutdown
12
3
5
SB / R / W
M
A2
GP
P
DW
17
3
1
6
8
ar2
III
I
5
4
7
C
E
³) Only in connection with LMG2...
LDU
DW
GP
A1
A2
E
B
C
9
5°/10°°
5
18°/17°°
A
W
N
R
10
4
5
6
8
12
III
V
I
2
7
11
9
C
E
B
7696a06/0703
4
3)
AGK25
A1
19 23 20
12
22
21 24
hr2
XI
hr1
N
11
13
LDU11
AL
B
7696a11/0401
2)
2)
19
23
22
21
24
20
hr2
XI
hr1
N
13
LDU11
AL
CC1N7696en
20.04.2016
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