BCU 460, BCU 465 · Edition 11.19
97
Parameters
11 .8 .11 Flameless operation
Parameter A064
As soon as there is a signal at the Flameless mode input
(terminal 7), the BCU in High temperature mode can
switch to Flame mode or Flameless mode immediately
or upon the next burner start.
Parameter A064 = 0: upon next burner start. As long as
the start-up signal is present, the burner control unit
will remain in Flame mode. It will not switch to Flame-
less mode until the next burner start.
Parameter A064 = 1: immediate burner start. The
switchover to Flameless mode takes place immediately.
The start-up signal must be applied to terminal 1. The
burner in Flame mode is switched off and restarted in
Flameless mode. If the signal is applied to the input at
terminal 7 during a burner start-up, the burner start-up
will be continued until the end of the minimum operat-
ing time.
If the signal at terminal 7 drops out during the flame-
less start-up or operation, the burner will be switched
off immediately. If the start-up signal continues to be
applied, a burner start may be performed in Flame
mode, depending on the other parameters.
Parameter A064 = 2: immediate switchover. As soon as
there is a signal at the Flameless mode input (termi-
nal 7), the burner in Flame mode is switched straight to
Flameless mode. Any burner start-up will not be contin-
ued until the end of the minimum operating time.
If the burner control unit is in standby position, it is
started immediately in Flameless mode as soon as the
start-up signal is received at terminal 1.
If the signal at terminal 7 drops out during the flame-
less start-up or operation, the burner will be switched
off immediately. If the start-up signal continues to be
applied, a burner start may be performed in Flame
mode, depending on the other parameters.