The Honeywell RM7840L2018 is a flame safeguard relay module designed for burner control systems that require dependable sequencing, flame monitoring, and lockout protection. Equipped with a grounding pin for added electrical integrity, this model is part of the RM7800 series and supports a wide range of flame detection technologies. Its modular design ensures easy integration into industrial and commercial burner management systems.
Technical Specifications
- Model: RM7840L2018
- Series: RM7800
- Product Type: Flame Safeguard Relay Module
- Power Supply: 120V AC, 50/60 Hz
- Control Type: On-Off Burner Control
- Mounting: Panel mount with Q7800A subbase (required)
- Flame Amplifier Compatibility: R7847, R7848, R7849, R7851
- Flame Detection: UV, IR, or rectification (based on amplifier)
- Field Flame Response Time (FFRT): Adjustable
- Reset Method: Manual reset required after safety lockout
- Grounding Pin: Included for enhanced grounding connection
- Status Indicators: LED display and optional remote interface (S7830A)
- Condition: New
Key Features
- Integrated grounding pin improves system reliability
- Microprocessor-based sequencing and diagnostics
- Modular, plug-in format for fast replacement and maintenance
- Compatible with a variety of flame sensors and amplifiers
- Supports lockout history and system status diagnostics
Compatible Accessories
- Q7800A Subbase
- R7847, R7848, R7849, R7851 Flame Amplifiers
- UV, IR, and rectification flame sensors
- S7830A Keyboard Display Module
Industry Applications
- Industrial boilers and furnaces
- Commercial burner systems
- HVAC heating systems
- Thermal process control
Installation & Maintenance Notes
- Use with Q7800A subbase for proper panel mounting
- Confirm flame amplifier and sensor compatibility
- Ensure grounding pin is securely connected
- Inspect flame signal strength during startup
- Review lockout history using the optional S7830A display
Request a Quote now or call us at 1-800-755-2883 for expert assistance.