Description
Bring advanced safety, versatility, and diagnostic power to your burner system with the Honeywell RM7897A2002. This full‑function, microprocessor‑based primary control is designed for single‑burner applications (gas, oil, or combination fuels) and features an integrated shutter drive and programmable post‑purge—ideal for industrial or commercial boilers, furnaces, and large process heaters.
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
