BCU 460, BCU 465 · Edition 11.19 13
Application
1.1.6 Single-stage-controlled burner with
pneumatic ratio control system
BICR
VG..L
VR..R
BCU 465..F3
60 61
3
DI
L1, N, PE
µC
P
4 1
81
82
95
96
A
P
35
2
6
65
36
HT
Start
1
PLC
Control: ON/OFF.
The BCU provides the cooling and purging processes.
The variable air/gas ratio control compensates for gas/
air pressure fluctuations. Optional: the pressure switch
monitors the air flow during pre-purge and operation.
The gas/air mixture is adjusted to the requirements of
the application using the parameters of pre-ventilation
and post-ventilation.