RM7840L1026 | Honeywell RM7800 Series Burner Control Relay Module 120VAC

Honeywell · Relays, Contactors & Switches

Description  The Honeywell RM7840L1026 is a microprocessor-based burner control relay module designed for automatic sequencing and flame supervision in single-burner gas, oil, or combination fuel applications. Operating at 120 VAC, 50/60 Hz, it provides a 10-second or intermittent main flame establishing period with lockout interlocks and intermittent second-stage pilot valve control. The RM7840L1026 supports advanced diagnostics, non-volatile memory retention, and compatibility with Honeywell flame detectors.   Technical Specifications  Condition New/Never Used Surplus Brand Honeywell Category Burner Control Systems Part Number RM7840L1026 Subcategory Flame Safeguard Relay Modules Series RM7800 Series Input Voltage 120 VAC Frequency 50/60 Hz Flame Establishing Period 10 Second or Intermittent Main Flame Pilot Operation Intermittent Second Stage Pilot (Terminal 21) Early Spark Termination Yes, 5 seconds Operating Temperature Range -40°F to 140°F Diagnostic Indicators Five LED status indicators Run/Test Switch Five-function switch Flame Amplifier Type Interchangeable plug-in amplifiers Memory Type Non-volatile memory (retains history and lockout status) Communication Capability Compatible with S7800 Keyboard Display Module (not included) Application Type Single-burner gas, oil, or combination fuel systems Weight 1 lb   Information About RM7840L1026 The RM7840L1026 is part of Honeywell’s RM7800 Series programming control platform engineered for industrial burner management systems. It integrates flame supervision, burner sequencing, and system diagnostics within a solid-state microprocessor-based module. The unit features LED status indicators, a five-position Run/Test switch, and plug-in flame amplifier compatibility for flexible flame detection configuration. Designed for use with compatible subbases, display modules, and purge cards, it supports local or remote annunciation and maintains operational history and lockout information through non-volatile memory. Key Features: Microprocessor-Based Burner Control: Provides automatic sequencing and flame supervision for single-burner systems. 120 VAC Operation: Rated for 120 VAC, 50/60 Hz power supply. 10-Second or Intermittent Main Flame Establishing Period: Configurable flame establishing timing for application requirements. Lockout Interlocks: Integrated safety lockout functions for secure burner operation. Intermittent Pilot Valve Control: Terminal 21 supports intermittent pilot functionality. LED Status Indication: Five onboard LEDs provide real-time sequence and diagnostic information. Non-Volatile Memory: Retains lockout status and history files after power loss. Interchangeable Plug-In Amplifiers: Supports multiple flame detection methods compatible with Honeywell flame detectors. The RM7840L1026 delivers the reliability and precision required for industrial burner management and flame safeguard control systems.

Brand: Honeywell · Category: Relays, Contactors & Switches

Key features

• Microprocessor-Based Burner Control: Provides automatic sequencing and flame supervision for single-burner systems.
• 120 VAC Operation: Rated for 120 VAC, 50/60 Hz power supply.
• 10-Second or Intermittent Main Flame Establishing Period: Configurable flame establishing timing for application requirements.
• Lockout Interlocks: Integrated safety lockout functions for secure burner operation.
• Intermittent Pilot Valve Control: Terminal 21 supports intermittent pilot functionality.
• LED Status Indication: Five onboard LEDs provide real-time sequence and diagnostic information.
• Non-Volatile Memory: Retains lockout status and history files after power loss.
• Interchangeable Plug-In Amplifiers: Supports multiple flame detection methods compatible with Honeywell flame detectors.

Specifications

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