The Honeywell RM7840G2022 is a flame safeguard relay module built for advanced burner control and safety sequencing in commercial and industrial combustion systems. Designed as part of the RM7800 series, this module includes a grounding pin for enhanced electrical reliability. It supports a wide range of flame detection options and integrates easily into systems using compatible amplifiers and sensors.
Technical Specifications
- Model: RM7840G2022
- Series: RM7800
- Product Type: Flame Safeguard Relay Module
- Power Supply: 120V AC, 50/60 Hz
- Burner Type: On-Off and Intermittent Pilot Burners
- Mounting: Panel Mount (Q7800A Subbase Required)
- 2000 series: with grounding pin
- Flame Amplifier Compatibility: R7847, R7848, R7849, R7851
- Flame Detection Types: UV, IR, or flame rod (rectification)
- Field Flame Response Time (FFRT): Adjustable
- Reset Method: Manual reset after safety lockout
- Grounding Pin: Included for secure system grounding
- Diagnostics: Built-in LED indicators and support for S7830A remote display
- Condition: New
Key Features
- Microprocessor-based burner sequencing and flame safeguard
- Grounding pin for enhanced electrical connection and safety
- Supports multiple flame detection methods with interchangeable amplifiers
- Modular, plug-in design for quick replacement and minimal downtime
- Provides lockout, safety shutdown, and flame monitoring functions
Compatible Accessories
- Q7800A Subbase
- S7830A Keyboard Display Module
- R7847, R7848, R7849, R7851 Flame Amplifiers
- UV and IR flame sensors
- Rectification flame rods
Industry Applications
- Boilers and process burners
- Commercial heating systems
- Furnaces and kilns
- Thermal process equipment
Installation & Maintenance Notes
- Install with Q7800A subbase and ensure grounding pin is connected
- Use correct flame amplifier and detector based on burner type
- Configure FFRT to match system requirements
- Test flame signal on startup and monitor with optional display
- Inspect wiring, connectors, and grounding regularly
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