Honeywell Krom Schroder BCU 580 - Page 71

BCU 580 · Edition 11.15l 71
Parameters
Parameter 09 = 1: burner 1. The restart function is ac-
tive.
t
SA
t
Z
04 04 02 03 01
t
t
FS
t
W
t
SB
1x
>2 s
88
ϑ
1
46
9
5
13
V1
57 V4
11
L1
42
41
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
SB
. The burner control unit then at-
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.
Parameter 09 = 2: burner 2.
06
05
07
08
08
t
t
SA2
t
FS2
1x
t
W2
t
SB
>2 s
88
5
13
V1
57
V4
1
14
V2
2
ϑ1
ϑ2
8
4
1
46
11
9
41
42
L1
1
43
2
17-18
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
SB
. The burner control unit then attempts
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.
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