Honeywell RM7895A1048 Burner Control Module, Interrupted Pilot, 120V – 7800 Series

RM7895A1048 On-Off Primary Control
Prepurge, Intermittent Pilot with Early Spark Termination, 120 Vac, Shutter Drive Output, Valve Proving, Blinking LED Fault Annunciation

The RM7895A1048 is a microprocessor-based On-Off primary burner control designed for industrial single burner systems fired by gas, oil, coal, or combination fuels. With built-in shutter drive output, valve proving, and early spark termination, it enhances ignition reliability and system safety while maintaining flexibility through modular compatibility with 7800 Series components.

Key Features

• Early spark termination for reduced wear on ignition components and enhanced safety

• Provides full burner sequencing, flame supervision, and diagnostics

• Includes prepurge cycle (timed via plug-in card) to purge combustion chamber

• Blinking LED power indicator doubles as fault code annunciator

• Valve proving feature ensures integrity of safety shutoff valves

• Shutter drive output supports mechanical damper control

• Compatible with interchangeable plug-in flame amplifiers for various detection types

• System history and lockout data retained with nonvolatile memory

• Selectable recycle or lockout upon flame failure

• Supports remote or local reset and annunciation options

• Five diagnostic LEDs display live system status

• Optional report generation and PC communication available

Technical Specifications

Required Components

• Wiring Subbase: Q7800A or Q7800B

• Flame Amplifier: R7847, R7848, R7849, R7851, R7852, R7861, or R7886

• Purge Timer: ST7800A Plug-in Purge Timer Card

Common Applications

• Industrial burners with intermittent pilot systems

• Fuel systems requiring early spark cutoff for operational efficiency

• Installations with mechanical damper drives

• Applications needing advanced diagnostics and safety checks