Honeywell RM7840L1075 ModAutoProgCtrl,FM/IRI

The Honeywell RM7800/RM7840 Relay Modules are microprocessor-based integrated burner controls for automatically fired gas, oil, or combination fuel single burner applications. The RM7800/RM7840 Relay Modules are used for UL/CSA On/Off, UL/CSA Modulating, and FM/IRI Modulating burner applications.

Microprocessor Based Integrated Burner Control for Automatically Fired Gas, Oil, Coal or Combination Fuel Single Burner Applications, 120Vac, 10 Second or 15 Second Main Flame Establishing Period, 4 Second or 10 Second Pilot Flame Establishing Period, Selectable Second Stage Pilot Valve, Lockout Interlocks, Interrupted Pilot, Post Purge Programmed with S7800A1142, User Selectable Air Flow Check, LHL-LF and HF Proven, Requires S7800A1142.