Flame Simulation Check In Standby Position - Honeywell BCU 460 Technical Information

Parameters
00

11 .4 .3 Flame simulation check in standby position

Parameter A003
This defines the instant for the flame simulation check.
00
Parameter A003 = 0: flame simulation check in standby
position. The flame simulation check is conducted pro-
vided no start-up signal (start 1) is applied (during the
so-called start-up position/standby). This allows fast
start-up of the burner since there is no waiting time t
The burner must have been switched off for at least 4 s
before start-up in order for the flame simulation check
to be conducted correctly.
00
Parameter A003 = 1: flame simulation check on start-
00
up. The flame simulation check is conducted after ap-
plying the start-up signal (start 1) during the waiting
time t .
W
BCU 460, BCU 465 · Edition 11.19
01 02 . . . 88
Start 1
V1
t
t
W
02 . . . 88
Start 1
V1
t
01 02 . . . 88
Start 1
V1
t
t
W
02 . . . 88
Start 1
V1
t
What is flame simulation?
Flame simulation means that an extraneous signal is
detected as a flame signal out of sequence. If the BCU
detects such an extraneous signal during the flame
simulation check, it starts the flame simulation delay
time t for 25 s. If the extraneous signal disappears
LV
during this time, the burner can start. Otherwise, a fault
lock-out occurs. E 01 flashes on the display.
Flame simulation check in standby position (parameter
A003 = 0):
00
.
W
Flame simulation check on start-up (parameter A003 = 1):
00 01
The flame simulation check of the burner is always ac-
tive until valve V1 is enabled.
E 01
88
L
35
1
ϑ
51
22
60
61
82
1
96
t
LV
E 01
88
L
1
ϑ
51
22
60
V1
61 V2
96
t LV
V1
V2
t
t
74