Honeywell RM7840L1075 Programmer

The Honeywell RM7840L1075 Programmer is a sophisticated, microprocessor-based burner control designed for single burner applications using gas, oil, coal, or a combination of fuels. This control unit enhances safety and functionality beyond traditional controls, featuring a Valve Proving Feature to ensure system integrity. The RM7840L1075 is suitable for forced air burners with interrupted pilot and intermittent second-stage pilot valves. It handles lockout interlocks and supports low, high, and medium fire (LHL-LF&HF) proven purge processes.

Key components required include Q7800A or B Wiring Subbases for connectivity, and compatible Flame Signal Amplifiers such as the R7847, R7848, R7849, R7851, R7852, R7861, or R7886 models. The ST7800A Plug-in Purge Timer Card manages timing functions, while the S7800A1142 Display provides essential operational readouts. This integrated system ensures robust performance, precise control, and enhanced safety for industrial burner applications.

Features

• Functions include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and trouble shooting.
• Access for external electrical voltage checks.
• Application flexibility and communication interface capability.
• Five LEDs provide sequence information. Power LED blinks fault code on Lockout.
• Five function Run/Test Switch.
• Interchangeable plug-in flame amplifiers.
• Local or remote annunciation of operation and fault information (optional).
• Nonvolatile memory retains history files and lockout status after loss of power.
• Compatible with existing Honeywell flame detectors.
• Keyboard required to setup Valve Proving Feature and change post purge time