Honeywell BCU 460 Technical Information page 82

Parameters
The switchover from Flame mode to Flameless mode
is performed either immediately or the next time the
burner is started depending on the setting made in
parameter A064. To switch to Flameless mode, the
HT signal from the STM (terminal 6) and the signal for
Flameless mode must be supplied to the BCU from a
separate control unit (terminal 7).
In Flameless mode (> 850°C), the burner is started
with the pre-ventilation time t
A028. No ignition using the transformer takes place
during safety time t
SA1
opened at the start of the safety time t
02 03
t t t
VLM SA1 FS1
The air pressure switch and the position of the IC are
checked via terminal 36 on the BCU.
BCU 460, BCU 465 · Edition 11.19
defined in parameter
VLM
. The gas valves V1 and V3 are
.
SA1
04
6
HT
7
FLO
1 ϑ
51
42
60
61
62
65
36
PZL
1
2
3
t
82