Honeywell Krom Schroder BCU 580 Technical Information page 71

Parameters
Parameter 09 = 1: burner 1. The restart function is ac-
tive.
1x
04 01 02
>2 s
t
t
SB
Z
t
W
If a flame failure occurs during operation (minimum op-
erating time of 2 s), the valves are closed and the opera-
tion signalling contact is opened within the safety time
during operation t . The burner control unit then at-
SB
tempts to restart the burner once. If the burner does not
function, a safety shut-down with fault lock-out occurs.
The display blinks and shows the fault message.
BCU 580 · Edition 11.15l
88
03 04
11
L1
46
1
ϑ
9
5
13
V1
57
V4
41
42
t
t
FS
t
SA
Parameter 09 = 2: burner 2.
1x
08 06
05
>2 s
t
SB
t
W2
If a flame failure occurs during operation (minimum op-
erating time of 2 s), valve 2 is closed and the operation
signalling contact is opened within the safety time dur-
ing operation t . The burner control unit then attempts
SB
to restart burner 2 once. If burner 2 does not function,
a safety shut-down with fault lock-out occurs. The dis-
play blinks and shows the fault message.
Parameter 09 = 3: burner 1 and burner 2.
▼
07 08
t t
SA2 FS2
88
11
L1
46
1
ϑ1
9
13
V1
57
V4
5
1
42
1
4
ϑ2
14
V2
8
2
43
2
17-18
41
t
71