Stage-Controlled Main Burner With Permanent; Pilot Burner - Honeywell Krom Schroeder BCU 480 Manual

Application
DI
6 3 5
BCU 480
26 14 12
VAG
VR..R
BCU 480 · Edition 03.16l
L1, N, PE
DI P
SPS
PLC
API
A
P 1 2
23 22 4 21
µC
24
VBY
1
2
18
19
16
1
17
28
2
29
02–04 06–08 04 06–08
1 .1 .2 Stage-controlled main burner
with permanent pilot burner
Control:
Main burner ON/OFF.
The main burner can be started with
reduced capacity after the operat-
ing signal from the pilot burner has
been detected. Pilot and main burn-
ers can be operated simultaneously.
This reduces the time required by
the main burner for starting up.
The BCU provides the cooling and
purging processes.
04
1
1
2
2
t
8