HTS KS – Burner Control Units BCU 560, BCU 565, BCU 580

Overview

The Honeywell BCU 560, BCU 565, and BCU 580 are microprocessor-based burner control units designed for controlling, igniting, and monitoring gas burners in continuous or intermittent operation. Each model unites the functionally interrelated components of automatic burner control — including manual/automatic mode changeover and display of operating and fault status — in a compact plastic housing for DIN rail mounting in a control cabinet.

The BCU series supports impulse-controlled, modulating-controlled, and stage-controlled gas burners across a broad range of industrial and commercial combustion applications. Program status, unit parameters, and flame signal are displayed directly on the unit, and diagnosis and adjustment of unit parameters is performed via an optical interface using BCSoft software. The BCU 565 adds dedicated airflow monitoring features, and the BCU 580 extends the platform to support pilot-plus-main burner configurations and multiple-burner systems with central air supply.

Features & Benefits

• Combines automatic burner control, manual/automatic mode changeover, and status display in a single compact DIN rail-mounted housing
• Integrated display of program status, unit parameters, and flame signal for fast on-site diagnostics
• Diagnosis and parameter adjustment via optical interface and BCSoft software (Windows)
• BCU 56x/580 with integrated manual mode supporting actuator and burner control
• BCU..F1–F3 configurations support capacity control
• BCU 56x/580..D1 with digital input for high-temperature operation
• BCU 56x/580..C1 with optional valve proving system, programmable to customer requirements
• BCU 565..D2 supports menox® low NOx burner mode
• Optional BCM 500 fieldbus module enables PROFINET or Modbus TCP communication
• EU certified; AGA, FM, CSA, and EAC approved; certified for systems up to SIL 3 (compliant with PL e)

Technical Specifications

• Models: BCU 560, BCU 565, BCU 580
• Enclosure rating: IP20 (device); IP54 (installation cabinet); IP65 (OCU external operator unit)
• Ambient temperature range: -20 to +60 °C
• Dimensions: 100 x 110 x 102 mm
• Power consumption: 120 V — approx. 3 W / 5.5 VA; 230 V — approx. 6 W / 11 VA
• Flame signal current — Ionization: 2–25 µA; UV: 5–25 µA
• Signal cable length: max. 100 m
• Start-up attempts: 1 to 3 (configurable)
• Software interface: BCSoft (Windows) via opto-adapter PCO 200
• Fieldbus communication: optional BCM 500 module — PROFINET or Modbus TCP
• Approvals: EU Certified, AGA, FM, CSA, EAC; SIL 3 certified (DIN EN 61508, compliant with PL e)

Applications

• Directly ignited single-stage, two-stage, and modulating gas burners (BCU 560, BCU 565)
• Self-recuperative burners with airflow monitoring requirements (BCU 565)
• Pilot-plus-main burner systems and multiple-burner installations with central air supply (BCU 580)
• Industrial furnaces, process heaters, and thermal processing equipment
• Applications requiring low NOx combustion control with menox® burner technology (BCU 565..D2)
• Systems requiring fieldbus integration via PROFIBUS, PROFINET, or Modbus TCP
• High-temperature operation with digital input control (BCU 56x/580..D1)
• Installations requiring valve proving per AGA, FM, CSA, or EU standards

Models / Configurations

• BCU 560 – Burner control unit for single-stage, two-stage, and modulating gas burners; supports staged (F3), modulating (F1), and on/off impulse control modes; flame detection via flame rod, UVS, or UVC
• BCU 565 – Extends BCU 560 with dedicated airflow monitoring features; supports self-recuperative burners; menox® low NOx mode available on BCU 565..D2; air control via IC20, IC40, FS-BLAC actuators or air valve
• BCU 580 – For pilot-plus-main burner, two-stage, and modulating configurations; supports multiple-burner systems with central air supply; air control via IC20, IC40, IC50, RBW actuators or air valve; flame detection via ionization, UVS, or UVD
• BCU..F1 – Modulating capacity control configuration
• BCU..F3 – Staged capacity control configuration
• BCU 56x/580..C1 – With optional valve proving system, programmable to customer requirements
• BCU 56x/580..D1 – With digital input for high-temperature operation
• BCU 565..D2 – With menox® low NOx mode support

BCU 560 / BCU 565 / BCU 580 Accessories

• BCM 500 – Fieldbus communication module enabling PROFINET or Modbus TCP integration for remote monitoring and control
• LM + PCC 500 – Load module and program control combination for expanded system functionality
• OCU – External operator control unit for remote display and control; rated IP65 for field-mounted applications
• PCO 200 – Opto-adapter for connecting BCSoft software interface via optical interface on the BCU
• BCSoft – Windows-based software for diagnosis, parameterization, and adjustment of BCU unit parameters

Documentation