Description
HONEYWELL
EC7850A1122
97-4684
BURNER CONTROL
ULTRAVIOLET FLAME AMPLIFIER
ACCEPTABLE FLAME SIGNAL: 1.25VDC MINIMUM
The Honeywell EC7850A1122 is an ultraviolet flame amplifier burner control unit designed to monitor and confirm the presence of a burner flame within combustion control systems. By detecting ultraviolet radiation emitted during combustion and processing the resulting signal — with a minimum acceptable flame signal of 1.25VDC — this component plays a critical safety role in ensuring burners operate only when a verified flame is present. It is typically found in boiler and burner management systems aboard marine vessels, where reliable flame supervision is essential for safe and continuous operation of fuel-burning equipment.
Key Features
✓ Ultraviolet flame amplifier function provides reliable flame signal detection and processing within the burner control circuit.
✓ Minimum acceptable flame signal of 1.25VDC as specified — all other electrical ratings and response times are subject to confirmation against system documentation.
✓ Designed for integration within Honeywell burner management and combustion control systems; compatibility with specific panels or controllers should be confirmed against the installation’s configuration.
✓ Intended for installation within burner control panels in controlled onboard environments; mounting requirements and enclosure suitability are subject to the host system’s design and classification requirements.
✓ As a safety-critical flame supervision component, replacement or servicing should follow OEM guidelines and relevant class society or flag state requirements to maintain system integrity.
Marine Applications
✓ Boiler burner management systems on tankers, bulk carriers, and general cargo vessels requiring continuous steam generation or fuel heating.
✓ Auxiliary boiler control systems aboard cruise ships, ferries, and ro-ro vessels where reliable combustion supervision is operationally essential.
✓ Incinerator burner control panels on vessels managing onboard waste in compliance with MARPOL requirements.
✓ Thermal oil heater systems and fuel conditioning units found on offshore support vessels and platform supply vessels.
✓ Retrofit and upgrade applications where an existing Honeywell burner control system requires a replacement flame amplifier module to restore full functionality.
Why Marine Engineers Choose
The Honeywell EC7850A1122 is a recognised component within established Honeywell burner control architectures, offering a direct replacement solution for vessels that depend on precise, UV-based flame supervision to maintain safe combustion operations and avoid costly unplanned shutdowns.
Ideal For
Tankers, bulk carriers, general cargo vessels, cruise ships, ferries, ro-ro vessels, offshore support vessels, and any commercial or industrial marine platform operating Honeywell-based burner management or combustion control systems.
Technical Support & Compliance
Remote troubleshooting guidance, commissioning support, and integration assistance are available to help confirm the suitability of this component for your specific burner control system. Compatibility with your existing panel, controller, and flame detector configuration is subject to confirmation. To verify fitment and scope of supply, buyers are encouraged to share nameplate photographs, existing part numbers, system model and version details, relevant wiring diagrams or drawings, vessel name, IMO number, and a description of the installation context. All compatibility and compliance statements are subject to confirmation based on documentation provided.
