Honeywell RM7897A-1002 On-Off Primary Control with Shutter Drive and Programmable Post Purge
Overview: 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 (Sold Separate).
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. (Sold Separate)
Options include PC interface, keyboard display module, DATA CONTROLBUS™ MODULE, remote display module, first-out expanded annunciator, and COMBUSTION SYSTEM MANAGER™ software. (Sold Separate)
Five LEDs provide sequence information. Power LED blinks fault code on Safety Shutdown.
Interchangeable plug-in flame amplifiers. (Sold Separate)
Local or remote annunciation of operation and fault information.
Nonvolatile memory retains history files and sequencing status after power loss.
Optional remote reset capability. (Sold Separate)
Optional report generation. (Sold Separate)
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 (Sold Separate)
Flame Establishing Period – Pilot: 4 sec or 10 sec
PrePurge: Determined by ST7800A Purge Timer Card (Sold Separate)
PostPurge: programmed with S7800A1142 display (Sold Separate)