Examples Of Application; Stage-Controlled Main Burner With Alternating; Pilot Burner - Honeywell Krom Schroder BCU 580 Technical Information

Application
Process control (PCC)
FCU 500
17 18 37 38
BCU 580..C0F3
46
HT
49
P
50
02–04 06–08 02–04 06–08
BCU 580 · Edition 11.15l
V1 V2
VAS VAG
PLC
ϑ1 A ϑ2
1 2 3
4
41
42
1
µC
43
2
13
14
57
9
5
10
VR..L
ϑ1
1
ϑ2
2
t
VAS 1
V4
TZI/TGI

1 .1 Examples of application

1 .1 .1 Stage-controlled main burner
with alternating pilot burner
Control:
Main burner ON/OFF or High/Low
The main burner can be started with
reduced capacity after the operat-
ing signal from the pilot burner has
been detected. The pilot burner is
switched off automatically after the
main burner has started up. When
the main burner is switched off, the
pilot burner automatically switches
on again. This reduces the main
burner start-up time.
The UV sensor monitors the flame
signal from pilot and main burners.
The BCU provides the cooling and
purging processes.
9