Description
The Honeywell RM7845A Relay Modules are microprocessor-based integrated burner controls for automatically fired gas, oil, or combination fuel single burner applications. The relay modules are used for UL/CSA On/Off, UL/CSA Modulating, and FM/IRI Modulating burner applications.
The system consists of a relay module, Keyboard Display Modules, dust cover, subbase, amplifier, and purge card. Options include a personal computer interface, Data ControlBus™ Module, remote display mounting, first-out expanded annunciator, and Combustion System Manager™ Software.
Functions provided by the relay module include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics, and troubleshooting. The relay module is a solid-state device.