Honeywell RM7885A1015


Controller Burner Manual Start Flame Safeguard

Availability: In Stock

Condition: New
Brand: Honeywell
Status: Active
SKU: 71624
Manufacturer Part #: RM7885A1015


The Honeywell RM7888A Relay Module is a microprocessor-based integrated burner control for industrial process semi-automatically fired gas, oil, coal or combination fuels for single and multiple burner industrial applications. The RM7888 system consists of the relay module, wiring subbase and amplifier. Options include keyboard display module (KDM), Modbus™ module, Data ControlBus™ Module, and remote display mounting. The RM7888 intended use is in conjunction with a master system control. The master system control determines the purge timing and confirms air supply and air flow. The RM7888 is programmed to provide a level of safety, functional capability and features beyond the capacity of conventional controls. The basic functions of the RM7888A include semi-automatic burner startup sequencing, five user selectable operating (run) sequences, four line voltage sequence control inputs (commonly controlled with a Programmable Logic Controller [PLC]), flame supervision, system status indication, system or self-diagnostics and troubleshooting.

Additional information

Weight 1 lbs



Production Status



  • Safety features:
    • Closed loop logic test.
    • Dynamic input check.
    • Dynamic safety relay test.
    • Dynamic self-check logic.
    • Expanded safe-start check.
    • Internal hardware status monitoring.
    • Tamper resistant timing and logic.
  • Access for external electrical voltage checks.
  • Application flexibility.
  • Communication interface capability through Modbus.
  • Dependable, long-term operation provided by microcomputer technology.
  • First-out annunciation and system diagnostics provided by a 2 row by 20 column vacuum fluorescent display (VFD) located on the KDM (optional).
  • Five LEDs for sequence information (see Fig. 1).
  • Interchangeable plug-in flame amplifiers.
  • Local or remote annunciation of RM7888 operation and fault information (with optional keyboard display module).
  • Nonvolatile memory; RM7888 retains history files and sequencing status after loss of power.


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RM7888A Relay Module; 7800 Series


Honeywell – Data Sheet