Kromschroder Burner control unit BCU370WI2FEU0D3 88600619

This burner control unit is designed for industrial forced draught burners fired by gas and can operate in intermittent or continuous mode. It supervises the flame via a UV or ionisation sensor (max. cable length 50 m) and provides an integrated electronic ignition with a max. ignition cable of 1 m. The unit allows 2 start-up attempts; pre-ignition time is 1 s, safety time for burner/pilot start-up (TSA1) is 5 s, flame-proving period (TFS1) is 2 s, safety time for main burner start-up (TSA2) is 2 s, and flame-proving period for main burner (TFS2) is 2 s. Pre-purge time is 30 s, post-purge time is 100 s, and the controller enable signal delay (TRF) is 10 s. It features a three-point step valve control, a double-pole 3 A fan relay, integrated tightness control through a digital input, and a flame failure response of restart. The impact- and heat-resistant plastic housing fulfils IP54, weighs 1800 g, operates in ambient temperatures from -20 to 60 °C, and is rated for a maximum of 250,000 operating cycles.