Kromschroeder 88610049 BCU480-5/3/1LW3GB burner control unit

Kromschroder 88610049 BCU480-5/3/1LW3GB is an automatic gas firing device for gas burners, designed to manage ignition and monitoring in both periodic and constant operation modes. Its fully electronic design ensures rapid adaptation to changing process demands, making it ideal for applications requiring frequent cycling. Krom schroder 88610049 BCU480-5/3/1LW3GB gas burner control unit can be used for industrial burners of unlimited capacity, which are ignited by pilot burners. Pilot and main burners may be modulating or stage-controlled. Kromschroeder 88610049 BCU480-5/3/1LW3GB gas burner control box provides independent monitoring of pilot and main burners. The pilot burner can either remain continuously ignited or be shut off as needed. Installation of the BCU is done in close proximity to the burner it monitors. In industrial furnace applications, Kromschroder 88610049 BCU480-5/3/1LW3GB control box lightens the workload on the central furnace control system by assuming responsibilities specific to burner operation. For instance, it guarantees safe ignition of the burner whenever it is restarted, ensuring operational safety. The air valve control aids the furnace control in tasks such as cooling, purging, and capacity control. Program status, unit parameters, and flame signal strength can be directly accessed from the unit. Additionally, manual control of the burner is available for commissioning and diagnostic purposes. In the event of changing local requirements for Kromschroeder 88610049 BCU480-5/3/1LW3GB control unit, the PC software "BCSoft" can be customized to adapt to the specific unit parameters using the optical interface. Service personnel benefit from a user-friendly visualization system that displays input and output signals, as well as error history, facilitating maintenance tasks. Furthermore, a new power management scheme is implemented to decrease installation and wiring expenses. Power for the valves and ignition transformer is provided through the BCU's power supply, safeguarded by a replaceable fine-wire fuse. With the standardized fieldbus system PROFIBUS DP, development, installation, and commissioning costs are significantly reduced compared to traditional wiring methods. Utilizing a standard bus system provides significant advantages over manufacturer-specific customized solutions. Market-available time-proven hardware components, standardized connection methods, and a variety of bus diagnostic and optimization tools are accessible from numerous manufacturers. The extensive adoption of such systems ensures that planning and service personnel are well-versed in system operation and management, thus enhancing operational efficiency. Kromschroeder BCU480-5/3/1LW3GB 88610049 gas burner safety control box technical data For grounded and ungrounded mains Inherent consumption: approx. 9 VA plus inherent consumption of the integrated ignition transformer [50/60 Hz] Signal and control line: max. 2.5 mm2 (AWG 14) Cable for burner ground/PE wire: 4 mm2 (AWG 12) Cable gland: 5 cable glands with multiple seal inserts for 2 cable diameters of up to 7 mm It is supplied for two cable glands with one seal insert each for cable diameters between 7 and 12 mm Flame control with UV sensor or ionization sensor Flame signal for ionization control: 1 – 28 μA, UV control: 1 – 35 μA For intermittent or continuous operation Maximum length of ignition cable with integrated electronic ignition: 5 m Maximum length of ionization/UV cable: 50 m Operation and fault signaling contacts: Signaling contact for mains voltage, max. 2 A, 253 V, not internally fused Number of operating cycles: Relay outputs: 250000 pursuant to EN 298, Mains switch: 1000, Reset/Information button: 1000 Ambient temperature: -20 to +60°C (-4 to +140°F), climate: no condensation permitted Enclosure: IP 54 pursuant to IEC 529 Weight: 5 kg Version for pilot and main burners 1st safety time on start-up (burner/pilot burner) tSA1: 5 s 2nd safety time on start-up (main burner) tSA2: 3 s Safety time during operation tSB: 1 s Air valve control Mains voltage: 230 V AC, 50/60 Hz Kromschroder ignition transformer TZI 7,5-12/100 Front film in English with additional stickers in D, F, I, NL, E 04 Switch-off threshold, burner/pilot burner: 1 micro A 05 Main burner switch-off threshold: 1 micro A 12 Fault lock-out in the event of pilot burner failure in operation 13 Fault lock-out in the event of main burner failure in operation 15 Flame simulation check in start-up position/standby 16 Permanent pilot burner 20 Minimum burner on time tB: 5 s 21 Minimum burner pause time tBP: 0 s 23 Burner/pilot burner flame proving period tFS1: 0 s 25 Main burner flame proving period tFS2: 0 s 30 Air valve can be activated externally 31 Air valve cannot be activated externally on start-up 32 Air valve can be activated in the event of malfunction 34 Burner on time in Manual mode limited to 5 min. Pre-wired for double-electrode operation Minimum time between two start-ups: 15 s Kromschroder BCU480-5/3/1LW3GB 88610049 gas burner control box wiring Electrical connection via plug-in connection terminals (2.5 mm²) and plug-in cable glands. The latter can be removed in order to facilitate installation. Kromschroeder BCU480-5/3/1LW3GB 88610049 automatic gas firing device is suitable for hard wiring only. Do not reverse phase and neutral conductor. Different phases of a three-phase current system must not be installed at Krom schroder BCU480-5/3/1LW3GB 88610049 control box. No voltage may be connected to the valve and ignition outputs. No gas valve may be connected to the air valve output.