Honeywell RM7898 Microprocessor-Based Integrated Full Function Control

Microprocessor-based integrated primary burner control for automatically fired gas-, oil-, coal-, or combination fuel single burner applications. Provides on/off primary control with prepurge and airflow switch check.

Key Specifications

  • Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics, and troubleshooting
  • Programmable post-purge, shutter drive output, airflow switch check
  • Five LEDs for sequence information. Power LED blinks fault code on safety shutdown
  • Selectable relight or lockout on loss of airflow or flame
  • Local or remote annunciation of operation and fault information
  • Valve proving feature tests valve seat integrity to detect a leak greater than 0.1% of burner input capacity
  • UL, FM, CSA approved

Specifications, Manuals, and Supporting Literature

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Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

Models Available to Buy Online at
Integrated full-function primary burner control. 4- or 10-second pilot flame establishing period. Selectable interlocks and pilot type. Pre-purge determined by ST7800A timer cards, Post-purge and valve proving features programmed through S7800A1142 keyboard display module RM7898A1000


See our full combustion safety and efficiency instrumentation offering.

Flame safeguard systems
Flame safeguard systems
Plug-in modules
Keyboards, purge timer cards,
and annunciator panels
Flame detectors
Flame detectors
Flame amplifiers
Flame signal amplifiers
Pressure controls
Pressure controls
Temperature controls
Temperature controls
valves and motors
Shutoff valves, control valves,
and actuators
combustion efficiency analyzers
Combustion efficiency and
emissions analyzers



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