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Building Technologies Division
CC1N7696en
20.04.2016
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
Valve proving test following immediately the controlled
shutdown
LDU11
17
DW
2
C
5
4
hr1
GP
23
11
16
15
E
B
6
III
ar2
3
SB / R / W
N
1
12
LGB2.../3.../4.../LMG2...
H
L
hr2
XI
20
14
19
12
22
5
3
4
A2
A1
M
N
AL
13
24
21
10
7696a05/0403
N
L
LDU11
22
5
4
2
C
hr1
7
B
11
E
12
P
III
1
16
14 15
DW
ar2
17
3
LGB2.../3.../4.../LMG2...
H
6
hr2
19 23 20
I
8
12
XI
SB / R / W
A2
A1
5
GP
3
M
N
13
AL
21 24
4
7696a06/0703
AGK25
3)
³) Only in connection with LMG2...
Plants with vent pipe to atmosphere
GP
E
C
B
DW
LDU
A
A2
A1
C
DW
LDU
B
GP
E
7696s01/0695
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
Check following immediately the controlled shutdown
2)
Expanding flame burner or interrupted pilot burner
N
LDU11
hr2
GP
C
14
15
18
1
EK2
2
17
16
6
III
5
3
ar2
4
B
E
11
20
19
12
hr1
XI
23
8
I
7
10
V
9
14
W
2
d
LFE1
LEC1
LFL1...
LGK16...
18 19
9
12 13
4
LP
8
5
R
N
4
5°/10°°
18°/17°°
A
AL
22
13
24
21
N
7696a10/0401
DW
2)
2)
LDU11
hr2
GP
C
N
B
E
6
W
14
15
18
1
17
16
III
5
3
ar2
4
2
EK2
4
LFE1
LEC1
LFL1...
LGK16...
8
R
N
11
20
19
12
hr1
XI
23
I
7
10
V
9
8
5°/10°°
18°/17°°
A
9
5
AL
7696a11/0401
22
13
24
21
N
DW
2)
2)
