Honeywell krom schroder BCU 440 - BCU 440: Modulating-Controlled Burner

BCU 440 · Edition 01.17 7
Application
1.1.2 BCU 440: Modulating-controlled burner
Control: continuous.
Modulating control of the gas flow rate with a constant
air flow rate. The burners start at low-fire rate, and the
actuator IC 20 controls the burner capacity via the lin-
ear flow control LFC after the operating state has been
signalled.
BCU 440
L1, N, PE
mA
BIO/
BIC
VAS
µC
1
12
18
19
3
9
AKT
AKT
BCU 440
BIO/
BIC
VAS
µC
1
12
18
19
3
9
AKT
AKT
BVG
IC 20 + LFC
M
PLC