Honeywell RM7897A1002 Burner Control

Microprocessor-based integrated full-function primary burner control for automatically fired gas, oil, or combination fuel single burner applications. Programmable Post Purge. Requires S7800A1142 Display to program post purge feature.
On/Off burner control for automatically fired gas, oil or combination fuel single power burner applications that require pre purge and proof of closure. Selectable running or lockout interlock, delayed (2nd stage) main valve for 2-stage firing and optional post purge. Control has shutter drive for continuous applications that require self-check Ultra Violet flame detectors.

Microprocessor based on/off primary control with Programmable Post Purge, Pre Purge, LED Fault Code (Blinkum) annunciation, Pre Ignition Interlock Input (Proof of Closure Switch), Selectable Pilot Flame Establishing Period, Selectable Intermittent or Interrupted Pilot Valve with 10 second MFEP, Delayed (2nd Stage) Main Valve, Selectable Flame Failure and Airflow Switch Failure Action, Run/Test Switch, 120Vac, 50/60Hz. Six historical fault files and self diagnostic information. For a complete system, relay module requires wiring subbase, plug-in flame signal amplifier and plug-in purge timer card.

Features

• Includes blinking LED fault annunciation feature
• Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting.
• Subbase, amplifier and purge card are required for operation.
• Options include PC interface, keyboard display module, DATA CONTROLBUS™ MODULE, remote display module, first-out expanded annunciator, and COMBUSTION SYSTEM MANAGER™ software.
• Five LEDs provide sequence information. Power LED blinks fault code on Safety Shutdown.
• Interchangeable plug-in flame amplifiers.
• Local or remote annunciation of operation and fault information.
• Nonvolatile memory retains history files and sequencing status after power loss.
• Optional remote reset capability.
• Optional report generation.
• Selectable recycle or lockout on loss of airflow or flame.
• Shutter drive output.
• Airflow switch check.
• Delayed main valve.
• Programmable post purge using S7800A1142 Keyboard Display (not provided).
• Flame Establishing Period – Pilot: 4 sec or 10 sec
• Interlocks: Selectable
• PrePurge: Determined by ST7800A Purge Timer Card
• PostPurge: programmed with S7800A1142 display