Kromschroder Combustion control unit BCU 560WC0F0U0D1K1-E 88670921

This combustion control unit (model 560WC0F0U0D1K1-E) manages ignition and flame supervision in a gas burner. It operates from 230 V (50–60 Hz) and monitors the flame by ionization, reacting instantly to flame loss. The safety time is 1 s and the flame check period is 2 s. Operating modes include continuous, intermittent, and manual, with the manual mode limited to 5 minutes. It is rated SIL 3 (PL e), has a replaceable power module, and provides an optical interface for diagnostics. Net weight is 0.6 kg.

Replacement control units of this kind are chosen by matching the exact series and type code, supply voltage, required safety and pre-purge times, flame detection method (ionization, UV, or IR), and base or plug pattern. Before ordering, compare these parameters with the original unit’s markings; a mismatched safety time or flame detector method creates a safety hazard. For installation, mount the unit on a DIN rail and connect fuel valves, ignition transformer, fan, pressure switches, and the flame detector as shown in the wiring diagram. After installation, verify that the selected mode and times are correctly set for the burner type.