Blue Burner control box with digital display card and status lightsThe Honeywell RM7840L2075 is an advanced microprocessor-based burner control designed for the safe and reliable management of industrial burner and flame safeguard systems. As part of the Honeywell 7800 Series, this control module provides state-of-the-art diagnostics, modularity, and precise burner sequencing for demanding commercial and industrial applications.

Technical Specifications

  • Model: RM7840L2075
  • Series: Honeywell 7800 Series
  • Product Type: Programmable Burner Control Module
  • Voltage: 120V AC
  • Frequency: 50/60 Hz
  • Control Type: On/Off or Modulating Burners
  • Amplifier Compatibility: Compatible with R7847, R7848, R7849, R7851 Series Flame Amplifiers
  • Communication: Optional Keyboard Display Module (S7830A) or Remote Interface
  • Operating Temperature: -40°F to +140°F (-40°C to +60°C)
  • Mounting: Panel Mount (Q7800A Subbase required)
  • Safety Features: Lockout with Manual Reset
  • Status Indication: LED and optional remote display
  • 2000 series with grounding pin
  • Condition: New or Reconditioned
  • Warranty: 1-Year Replacement Warranty

Key Features

  • Microprocessor-based burner safety control
  • Full diagnostics and lockout history capability
  • Plug-in design for fast installation and servicing
  • Compatible with multiple flame detection technologies
  • Suitable for gas, oil, or combination burners

Compatible Accessories

  • R7847/R7848/R7849 Flame Amplifiers
  • S7830A Keyboard Display Module
  • Q7800A Subbase
  • UV and IR Flame Sensors

Industry Applications

  • Boilers and furnaces
  • Industrial ovens and kilns
  • Commercial heating systems
  • Burner retrofits and upgrades

Installation & Maintenance Notes

  • Always mount with a Q7800A subbase
  • Follow Honeywell wiring and safety protocols
  • Test flame signal strength during commissioning
  • Keep modules in dry, vibration-free environments

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