Description
The Honeywell RM7897A1002 is an advanced microprocessor‑based primary burner control built for automatically fired single burner systems using gas, oil, or combination fuels. Featuring pre‑purge, programmable post‑purge, a shutter drive, selectable pilot timing, and comprehensive diagnostics, it offers superior safety, efficiency, and flexibility. This controller is ideal for upgrades or new installations where precise control, safety, and regulatory compliance are a priority.
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
